Installation Maintenance HARRIS MEGA STAR

MegaStar® 155 M:N

Installation & Maintenance 5, 6, 7/8, 11 GHz 3xDS3, SONET, SDH Digital Microwave Radio

next level solutions

We’re ISO-certified.

MegaStar 155 M:N Installation and Maintenance Manual IMN-110971-E01, January 2000 Copyright © 2000, HARRIS CORPORATION. All rights reserved. MegaStar and FarScan are trademarks of HARRIS HA RRIS CORPORATION. Harris Corporation Microwave Communications Division 350 Twin Dolphin Drive

We’re ISO-certified.

MegaStar 155 M:N Installation and Maintenance Manual IMN-110971-E01, January 2000 Copyright © 2000, HARRIS CORPORATION. All rights reserved. MegaStar and FarScan are trademarks of HARRIS HA RRIS CORPORATION. Harris Corporation Microwave Communications Division 350 Twin Dolphin Drive

Contents

••••••

Technical Support . . . . . . . . . . . . . . . . . . . . . . . . 11 Customer Resource Center . . . . . . . . . . . . . . . . . . . . . . . . . . Telephone Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fax Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mail Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . USA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 11 11 12 12 12 12

Information to Provide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Customer Service Service . . . . . . . . . . . . . . . . . . . . . . . . 13 Repair and Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Customer Training . . . . . . . . . . . . . . . . . . . . . . . 14 Telephone Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Training Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S.A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14 14 14 14

•

MegaStar 155 M:N

• • • •

1

CHAPTER 1

Introduction MegaStar 155 M:N . . . . . . . . . . . . . . . . . . . . . . . . 15 Frequency Bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Capacity and Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15 15 16 16

Feature Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Equipment Photos . . . . . . . . . . . . . . . . . . . . . . . . . 18 Radio Frequency Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Signal Processing Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

About this Manual . . . . . . . . . . . . . . . . . . . . . . . . 20 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Special Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .

20 20 21 21 21 22

Related Documents . . . . . . . . . . . . . . . . . . . . . . . 22

CHAPTER 2

General Information Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . 23 Equipment Handling Precautions . . . . . . . . . . . 24 Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Storage Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Regulatory Compliance . . . . . . . . . . . . . . . . . . . 25 FCC Part 15 Emission Requirements . . . . . . . . . . . . . . . . . . . ETSI Emission Requirements . . . . . . . . . . . . . . . . . . . . . . . . . Department of Health and Human Services . . . . . . . . . . . . . . Manufacturer Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Federal Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Laser Radiation Warning . . . . . . . . . . . . . . . . . . . . . . . . . • •

2

• • •

Contents

25 25 25 26 26 26

CHAPTER 3

Installation Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Location and Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Equipment Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Tools and Test Equipment Required . . . . . . . . . 29 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Unpack the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Secure the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connect Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Check the Office Battery Voltage and Noise . . . . . . . . . . Check the SPU Controller Switch Settings . . . . . . . . . . . . . . .

29 30 30 31 31

Installation Procedures . . . . . . . . . . . . . . . . . . . . . 37 Set the Radio’s Network Address . . . . . . . . . . . . . . . . . . . . . . Connect the Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Align the Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connect the FarScan Computer . . . . . . . . . . . . . . . . . . . . . . .

37 38 39 41

Verify the DVB Port Settings . . . . . . . . . . . . . . . . . . . . . . . 41 Add a Fictitious Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Set Parity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Set Aux/Spur DVB Port Settings . . . . . . . . . . . . . . . . . . . 46 Verify Command Mask Changes . . . . . . . . . . . . . . . . . . . 48 Completing the Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Connect Other Radios to MegaStar . . . . . . . . . . 50 Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 DVA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 DVL/DVT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Repeater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 DVM Excell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Repeater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 •

MegaStar 155 M:N

• • • •

3

Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 DVM-XT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Repeater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 MegaStar 1+1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 MegaStar M:N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 1:2 and 1:3 Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 SCAN Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 1:4 and 1:5 Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 SCAN Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 1:6 and 1:7 Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 SCAN Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Verify Port Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Wiring for Positive or Negative Battery Input . . 63 SD-110617 Fuse Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Make a Delay Compensation Cable . . . . . . . . . . 68 Determine the Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Prepare and Connect the Cable . . . . . . . . . . . . . . . . . . . . . . . 70

CHAPTER 4

Verification Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Tools and Equipment Required . . . . . . . . . . . . . 72 Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Inventory Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Verify RFU and SPU Controller Software Version . . . . . . . . . Test the Decoder Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Test the Phase Lock Source . . . . . . . . . . . . . . . . . . . . . . . . . Check the Transmitter Output Power . . . . . . . . . . . . . . . . . . . Verify the Receive Signal Level . . . . . . . . . . . . . . . . . . . . . . .

• •

4

• • •

Contents

72 73 73 74 74 76

CHAPTER 5

Operation Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 FarScan Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Third-Party Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

FarScan Manual Commands . . . . . . . . . . . . . . . 78 Protection Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tests and Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Monitor Signal Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Initialize System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Check System Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CHAPTER 6

79 79 80 80 81

Routine Maintenance Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Periodic Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Inventory and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Maintenance Records . . . . . . . . . . . . . . . . . . . . . 86 Recording Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

CHAPTER 7

Troubleshooting Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Visual Alarm Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Turning off the Audible Alarm . . . . . . . . . . . . . . . . . . . . . . 90 FarScan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 MegaStar Inventory Program . . . . . . . . . . . . . . . . . . . . . . . . . 91 Adjustments and Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Replacing Faulty Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

•

MegaStar 155 M:N

• • • •

5

Equipment Required . . . . . . . . . . . . . . . . . . . . . . 92 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Alignment Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

SPU Troubleshooting . . . . . . . . . . . . . . . . . . . . . 93 RFU Troubleshooting . . . . . . . . . . . . . . . . . . . . . 94

CHAPTER 8

Repair and Replacement Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 In-Service Replacement . . . . . . . . . . . . . . . . . . . 96 Replacing Units . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Returning Failed Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Signal Processing Units . . . . . . . . . . . . . . . . . . . 98 Voice Frequency Orderwire . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Remove the VF Orderwire . . . . . . . . . . . . . . . . . . . . . . . . 99 Install the New VF Orderwire . . . . . . . . . . . . . . . . . . . . . . 99 Data Orderwire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Remove the Data Orderwire . . . . . . . . . . . . . . . . . . . . . 101 Install the New Data Orderwire . . . . . . . . . . . . . . . . . . . 101 Overhead Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Remove the Overhead Processor . . . . . . . . . . . . . . . . . 103 Install the New Overhead Processor . . . . . . . . . . . . . . . 103 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Remove the Power Supply . . . . . . . . . . . . . . . . . . . . . . . 105 Install the New Power Supply . . . . . . . . . . . . . . . . . . . . 105 Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Remove the Demodulator . . . . . . . . . . . . . . . . . . . . . . . 107 Install the New Demodulator . . . . . . . . . . . . . . . . . . . . . 107

• •

6

• • •

Contents

Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remove the Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . Install the New Decoder . . . . . . . . . . . . . . . . . . . . . . . . . Modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remove the Modulator . . . . . . . . . . . . . . . . . . . . . . . . . . Install the New Modulator . . . . . . . . . . . . . . . . . . . . . . . . IF Combiner (if equipped) . . . . . . . . . . . . . . . . . . . . . . . . . . . Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remove the IF Combiner . . . . . . . . . . . . . . . . . . . . . . . . Install the New IF Combiner . . . . . . . . . . . . . . . . . . . . . . Switch Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remove the Switch Interface . . . . . . . . . . . . . . . . . . . . . Install the New Switch Interface . . . . . . . . . . . . . . . . . . .

108 109 109 110 111 111 111 112 113 113 113 114 115 115

3xDS3 Tributary Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Remove the 3xDS3 Tributary Interface . . . . . . . . . . . . . . 117 Install the New 3xDS3 Tributary Interface . . . . . . . . . . . 117 Tributary Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Remove the Tributary Interface . . . . . . . . . . . . . . . . . . . 119 Install the New Tributary Interface . . . . . . . . . . . . . . . . . 119 SPU Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Remove the SPU Controller . . . . . . . . . . . . . . . . . . . . . . 121 Install the New SPU Controller . . . . . . . . . . . . . . . . . . . . . 122 Reprogram the VF Orderwire Address . . . . . . . . . . . . . . . 123 Alarm Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Remove the Alarm Display . . . . . . . . . . . . . . . . . . . . . . . 125 Install the New Alarm Display . . . . . . . . . . . . . . . . . . . . 125

Radio Frequency Units . . . . . . . . . . . . . . . . . . . 126 Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Remove the Power Amplifier . . . . . . . . . . . . . . . . . . . . . 127 Install the New Power Amplifier . . . . . . . . . . . . . . . . . . . 127 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Remove the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

•

MegaStar 155 M:N

• • • •

7

Install the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Remove the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Install the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Filter/Switch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Remove the Filter/Switch Assembly . . . . . . . . . . . . . . . . 133 Install the Filter/Switch Assembly . . . . . . . . . . . . . . . . . . . 134 Low Noise Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remove the Low Noise Converter . . . . . . . . . . . . . . . . . Install the New Low Noise Converter . . . . . . . . . . . . . . .

135 135 135 135

IF Filter/Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remove the IF Filter/Amplifier . . . . . . . . . . . . . . . . . . . . Install the IF Filter/Amplifier . . . . . . . . . . . . . . . . . . . . . .

137 137 137 137

Phase Lock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remove the Phase Lock Source . . . . . . . . . . . . . . . . . . Install the New Phase Lock Source . . . . . . . . . . . . . . . .

138 138 138 138

PLS Crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing the Crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing the New Crystal . . . . . . . . . . . . . . . . . . . . . . . .

140 140 140 146

Test the Phase Lock Source . . . . . . . . . . . . . . . . . . . . . . . . Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reprogramming the PLS . . . . . . . . . . . . . . . . . . . . . . . . . . .

150 150 151 154

Fan

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Remove the Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Install the New Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

• •

8

• • •

Contents

CHAPTER 9

Spare Parts, Return, Repair Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Spare Products Support Center . . . . . . . . . . . . . . . . . . . . . . 159 Repair and Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Ordering Parts or Spares . . . . . . . . . . . . . . . . . 159 Repair and Return . . . . . . . . . . . . . . . . . . . . . . . 161 Module Exchange . . . . . . . . . . . . . . . . . . . . . . . 161 Evaluation Fee . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Unrepairable Units . . . . . . . . . . . . . . . . . . . . . . 162 Return Freight . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Return Material Authorization . . . . . . . . . . . . . 163 Service Center Locations . . . . . . . . . . . . . . . . . 164 U.S.A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

CHAPTER 10

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

CHAPTER 11

Forms Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

•

MegaStar 155 M:N

• • • •

9

CHAPTER 12

Warranty Terms Warranty and Product Support . . . . . . . . . . . . 177 Standard Product Warranty Terms . . . . . . . . . 178 Limitation of Damages . . . . . . . . . . . . . . . . . . . 180

Index

• •

10

• • •

Contents

Customer Support

••••••

Technical Support Customer Resource Center If you are experiencing a traffic-affecting or traffic-threatening situation, technical support is available 24 hours a day, 7 days a week, including holidays. If you call the Customer Resource Center during nonbusiness hours, a Product Support Engineer will return your call within 30 minutes. Normal business hours for the Customer Resource Center on Monday through Friday are: USA: 6:30am to 5:00pm (Pacific Standard Time) Canada: 7:30am to 5:00pm (Eastern Standard Time)

Telephone Numbers Technical support telephone numbers: USA Canada

1-800-227-8332 (+1) 650-594-3800 1-800-465-4654 (+1) 514-421-8333

Fax Number Technical support fax number: USA Canada

(+1) 650-594-3621 (+1) 514-685-4580 •

MegaStar 155 M:N

• • • •

11

Internet USA e-mail: [email protected] Canada e-mail: [email protected] World wide web: http://www.microwave.harris.com/cservice

Mail Address USA Harris Corporation Microwave Communications Division Customer Resource Center 350 Twin Dolphin Drive Redwood Shores, CA 94065-1421

Canada Harris Corporation Microwave Communications Division Customer Resource Center 3 Hotel-de-Ville Dollard-des-Ormeaux Quebec, Canada H9B 3G4

Please refer to our customer service web site for CRC addresses in other countries.

• •

12

• • •

Customer Support

Information to Provide Please provide the following information when you contact us:

• Your name, company, and telephone number. • Equipment type, part number, and serial number (see label on back of shelf).

• Detailed description of the problem.

Customer Service Refer to Chapter 9 for information about repairs, returns, and ordering spare radio assemblies. Refer to Chapter 12 for service and warranty terms.

Repair and Return If you require module repair service, call the Customer Service Center and first request a Return Material Authorization (RMA) number. This request ensures that the repair will be done in a timely manner and prevents any delays caused by incomplete or missing information. Please provide the following information when you call (or fax):

• Your name, company, and telephone number (fax number) • Part Number and Serial Number (see label on the back of the shelf)

• • • •

Purchase Order Number Billing and shipping addresses Any special return packing or shipping instructions Any special customs clearance information required

•

MegaStar 155 M:N

• • • •

13

Customer Training Telephone Number 1-800-227-8332 1-800-465-4654

Training Centers Canada Harris Corporation 3 Hotel-de-Ville Dollard-des-Ormeaux Quebec, Canada H9B 3G4

U.S.A. California Harris Corporation 350 Twin Dolphin Drive Redwood Shores, CA 94065-1421

Texas Harris Corporation 5727 Farinon Drive San Antonio, TX 78249

• •

14

• • •

Customer Support

Chapter 1 Introduction

••••••

MegaStar 155 M:N MegaStar is a line-of-sight 3xDS3, SONET, or SDH microwave radio. It is a compact, technologically advanced system that implements and manages synchronous or asynchronous networks. MegaStar enables rapid network construction and can provide backup for critical traffic on fiber optic links. MegaStar is controlled and monitored by FarScan software on a standard computer. For more details about the program, refer to the FarScan manual.

This manual contains installation, maintenance, and operation procedures for MegaStar 155 M:N, which is sold in the USA and internationally.

Frequency Bands MegaStar radios are available for the following frequency bands :

• • • •

5 GHz (4.4 - 5.0 GHz) 6 GHz (5.925 - 7.125 GHz) 7/8 GHz (7.125 - 8.500 GHz) 11 GHz (10.7 - 11.7 GHz)

Capacity and Interface The MegaStar digital microwave radio has a 155 Mb/s capacity and can transport 2,016 voice equivalent channels at a rate of 64 Kb/s.

•

MegaStar 155 M:N

• • • •

15

Control and Monitoring MegaStar is a sophisticated, full-featured product that is monitored and controlled by FarScan software. To install the radio, verify its operation and perform routine maintenance, a FarScan computer with the appropriate database is required. The MegaStar Utility program, which runs under Microsoft ® Windows ®, is also necessary to perform certain configuration and maintenance tasks.

Configurations MegaStar 155 M:N radios come in the following configurations:

• Terminal 0:1 • Terminal 1:1 (0:2) • Terminal 1:2 (0:3) • Terminal 1:3 (0:4) MegaStar systems can be upgraded or converted after they are purchased into a different configuration. To find out what conversions are readily available, contact Harris (see page 11). A representative can help you choose a conversion kit that fits your system and needs.

• •

16

• • •


Feature Highlights Standard MegaStar features include the following:

• Fully digital adaptive time and frequency domain equalizers • Forward error correction (FEC) • Anticipatory errorless receiver switching • Anticipatory errorless space diversity data switching • Reverse channel switching • Automatic transmit power control (ATPC) • Inventory reporting • System control and alarm network • FarScan local and remote equipment monitoring and control • StarScan network management • Visual “replace me” and “loss of signal” indicators for key components • Self-healing architecture maintains performance/configuration integrity • Self-adapting circuitry • Local or remote software download • OC-3 signal transport • Up to four channels in a 7’ x 23” rack • 128 QAM (LSB CSOC FEC) modulation/demodulation • Integral service channel(s) • Software download utility • In-service path, section, line performance monitoring

•

MegaStar 155 M:N

• • • •

17

Equipment Photos Radio Frequency Section power amplifier

receiver assembly

filter/switch assembly

transmitter assembly

cooling fans

• •

18

• • •


Signal Processing Section Service Channel Handset

V F O r d e r w i r e

D a t a O r d e r w i r e

O v e r h e a d P r o c e s s o r

P o w e r s u p p l y

D e m o d u l a t o r

D I F M e o c C d o o u d m a l e b t r o i n r e r ( o p t i o n a l )

T r i b u t a r y I n t e r f a c e

S P U C o n t r o l l e r

S w i t c h I n t e r f a c e

T r i b u t a r y I n t e r f a c e

M o d u l a t o r

I F C o m b i n e r ( o p t i o n a l )

D e c o d e r

D e m o d u l a t o r

P o w e r S u p p l y

A l a r m D i s p l a y U n i t

•

MegaStar 155 M:N

• • • •

19

About this Manual Scope This manual contains procedures for installing, commissioning, and troubleshooting the MegaStar radio. It also contains safety and customer service information.

Organization This manual is organized as follows: Customer Support - Telephone numbers and contact information for Harris Customer Resource Center. Chapter 1 - Introduction to the MegaStar radio Chapter 2 - Safety cautions and regulatory information Chapter 3 - Equipment installation and turn-up procedures Chapter 4 - System verification procedures Chapter 5 - Equipment operation procedures using FarScan Chapter 6 - Routine maintenance procedures Chapter 7 - Troubleshooting information and flow charts Chapter 8 - How to repair and replace faulty components Chapter 9 - How to order spare parts, return faulty units, and request repairs Chapter 10 - Block diagrams Chapter 11 - Forms (routine maintenance log, return material authorization, service registration, instruction manual survey) Chapter 12 - Product warranty terms

• •

20

• • •


Conventions To protect both personnel and equipment, the following conventions are used throughout this manual.

The “exclamation point” in a triangle indicates a Warning or Caution. This notice alerts the personnel to possible damage to equipment, interruption of service, or a violation of a legal requirement. The “pencil and pad” indicates a Note. This notice clarifies or qualifies a specific point or instruction in the procedure or description. The “stop sign” indicates a pause in the procedure to perform some other task. Once you have completed the other task, you may continue with the procedure.

Special Terms Radio The term “radio” refers to an equipment rack containing a complete transmit and receive system.

•

MegaStar 155 M:N

• • • •

21

Channel Configuration This manual refers to channels in the MegaStar radio as shown in the following diagram: 0:N

1

2

1:N

3

4

1

P

2

3

1

2

1

P

3

4

2

3

Related Documents • MegaStar Software Utilities Manual • MegaStar Reference Manual • System Application Information • FarScan for Windows Instruction Manual

• •

22

• • •


P =

protection

Chapter 2 General Information

••••••

Safety Precautions The following general safety precautions must be observed at all times.

• Read all warning labels on the equipment. Failure to heed warnings can result in serious injury to you, or can damage the equipment.

• Observe all electrical precautions. • Verify that the grounding configuration complies with local code practice and requirements.

Verify grounding before the electrical power source is connected to the equipment.

•

MegaStar 155 M:N

• • • •

23

Equipment Handling Precautions Electrostatic Discharge Some of the components in the MegaStar radio are sensitive to static electricity, or electrostatic discharge (ESD) and thus can be damaged or destroyed by ESD that builds up in your body through routine activity. ESDsensitive components are marked with the following symbol:

Before working on MegaStar, discharge any static electricity you may be carrying. Handle the equipment in a static-free environment and use a grounding wrist or heel strap.

Storage Requirements MegaStar contains moisture-sensitive devices (MSDs) that are shipped in vacuum-sealed packages for protection. Moisture can build up these units when they are not powered up or in active use. To prevent moisture damage, store units that are not being used in a dry place.

• •

24

• • •


Regulatory Compliance FCC Part 15 Emission Requirements This equipment generates, uses, and radiates radio frequency energy, and if not installed and used in accordance with this instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart B of Part 15 of the FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user of the MegaStar radio, at his own expense, will be required to take whatever measures required to correct the interference.

Test results show that properly shielded cables are required to maintain compliance with the Class A limits for radiated emissions. This equipment also requires licensing for operation under FCC Title 47, Part 101.

ETSI Emission Requirements MegaStar can be furnished to meet the emission and susceptibility requirements provided within the European Telecommunications Standard ETS 300 385 for digital fixed radio links 2-Mbit/s and higher.

Department of Health and Human Services The Department of Health and Human Services regulates the manufacture of laser equipment through the Food and Drug Administration. Section 21, Parts 1010 and 1040 of the Code of Federal Regulations require that information on the manufacture and compliance to rules on laser devices be posted on the equipment. Because the MegaStar radio is equipped with optical transceivers, the assembly is classified as a laser device. •

MegaStar 155 M:N

• • • •

25

Manufacturer Labels Federal Compliance In compliance with Federal regulations, labels indicating compliance with FCC regulations are installed on each MegaStar radio:

Laser Radiation Warning A label warning against dangerous laser radiation appears immediately below the optical connectors on the optical tributary interface cards (SPU shelf).

• •

26

• • •


Chapter 3 Installation

•••••• Introduction

Safety Precautions The installation, maintenance, or removal of radio equipment (including grounding) and the radio antenna system must be performed by qualified personnel. Harris is not responsible or liable for the improper performance of the equipment, damage to the equipment, or injury to personnel caused by improper practices.

WARNING! RADIATION HAZARD Do not open waveguide with RF power on. Do not connect power to the radio assembly unless the transmitter is properly terminated. The transmitter is terminated when its output is connected to the antenna, to test equipment, or to a dummy load. Only properly trained personnel should operate this equipment.

•

MegaStar 155 M:N

• • • •

27

Requirements Location and Environment Install MegaStar in a sheltered area that has proper ventilation and access space for the front and back of the radio.

Make sure there are at least three feet (one meter) of space between the radio and strong magnetic fields or sources of impulse noise.

Equipment Cooling System MegaStar’s covers are an integral part of the radio cooling system. If a cover is missing or isn’t properly installed, the cooling airflow is not effective.

Power Source An appropriate DC power source must be available at the location. The radio can be equipped for operation with either plus or minus 24V DC or plus or minus 48V DC.

External connections to this equipment must meet IEC 1000-4-5 (4kV) surge protection standards.

• •

28

• • •


Tools and Test Equipment Required The equipment listed below is required for verifying t hat the radio installation meets customer requirements. • Portable computer with the following programs installed: FarScan for Windows Current equipment database MegaStar Inventory software

• Digital Multimeter (Fluke Model 77 or equivalent): 3-1/2 digit Accuracy 0.1% to ±60V DC, 1% from 10 mV AC

• Power Meter (HP 435B): 50 ohm power sensor 100 kHz to 11 GHz, ±1% accuracy Power range: -25 dBm to +33 dBm (with medium and high power heads)

• Frequency Counter: 50 ohm nominal impedance Capable of measuring up to 11 GHz -20 dBm sensitivity 10-digit display resolution

Procedure Unpack the Radio 1. Unpack the radio and set it upright. 2. Remove the front covers from the radio.

Firmly grasp each side of a cover and pull it straight out.

•

MegaStar 155 M:N

• • • •

29

3. Examine the components to make sure nothing was dislodged

or damaged during shipment. If there are signs of damage, such as a dented crate or broken equipment, file a damage claim with the shipper and notify Harris Customer Resource Center as soon as possible. 4. Use the bill of materials as a reference to make sure all the

components are present. The bill of materials is in the sales order specific binder, which was shipped with the radio. 5. When you are satisfied that the radio arrived in good condition,

replace the plastic covers. Be careful not to trap the delicate optical cables coming from the SPU shelf between the cover and the frame.

Secure the Radio Refer to the Harris field installation guide for instructions on securing the radio.

Connect Power The radio is shipped with the power wiring in place. The fuse panel at the top of the rack routes the battery input to the equipment in the rack.

• •

30

• • •


MegaStar is equipped to operate with either +/- 24V DC or +/- 48V DC.

External connections to MegaStar must meet IEC 801-5 or Bellcore TR-NWT-1087 (voltage surge level 1 only) surge protection standards. Surge protection kits are available from Harris. 1. Make sure an appropriate DC power source is available. 2. Install power runs and separate fusing from the office battery

distribution system to the fuse panel inputs. 3. Verify that power is connected to the SPU and RFU through

correct fuses on the fuse panel. 4. Make sure the connections and fuse ratings are recorded on the

fuse card, located on the fuse panel cover. Check the Office Battery Voltage and Noise 1. Check the battery (source) voltage.

For a 24V source, the voltage must be between 21 V and 28 V; for a 48V source, the voltage must be between 42 V and 56 V. (The battery polarity may be positive or negative.) 2. Check the office battery noise with an oscilloscope. 3. If the battery noise level is greater than 50 mV peak-to-peak,

install a filter in the battery line to the equipment.

Check the SPU Controller Switch Settings Switch blocks labeled “S2” and “S3” on the SPU Controller card must be configured according to the MegaStar radio configuration. (Refer to page 19 for the card’s location on the SPU shelf.) The following illustration shows the slot order as referred to in this section:

•

MegaStar 155 M:N

• • • •

31

Figure 3-1 Slot Order

1 2 3

The Data Orderwire and VF Orderwire cards can be installed in the first two half-height slots on the SPU shelf (see Figure 3-1) in the following combinations: Slot 1 (E1 byte)

Slot 2 (E2 byte)

None

None

VF Orderwire

None

VF Orderwire

VF Orderwire

VF Orderwire

Data Orderwire

Data Orderwire

None

Data Orderwire

Data Orderwire

The Overhead Processor must be installed in “slot 3” (see Figure 3-1).

• •

32

• • •


Figure 3-2 shows the location of the switch block (labeled “S2”) on the SPU Controller card. Figure 3-2 SPU Controller Switch Block and Jumper Location JP4 and JP5 jumpers

JP1, JP2, and JP3 jumpers

S2 and S3 switch blocks

•

MegaStar 155 M:N

• • • •

33

Each switch block contains eight switches that can be set to either “1” or “0.” Refer to Table 3-1 for specific configuration settings. Figure 3-3 S2 and S3 Switch Blocks

Do not use the “ON” mark on the switch block as a reference. Use the “1” and “0” markings on the board instead.

Table 3-1 S2 Switch Options Configuration Slot 1

Slot 2

Slot 3

1 2 3 4 5 6 7 8

Orderwires None and Overhead None Processor

None

None

0 0 0 0

None

OHP

0 0 0 1

VF

None

OHP

1 0 0 1

VF

VF

OHP

1 1 0 1

Data

None

OHP

1 0 1 1

Data

Data

OHP

1 1 1 1

Cust. External Inputs

• •

34

• • •


S2 Switch Block

No alarm with N/O relay contacts (normal) No alarm with N/C relay contacts (alarm)

0 1

Table 3-2 S3 Switch Options Configuration

Channels Equipped

IF Combiner

Protection Channel

S3 Switch Block M:N

0:N

1 2 3 4 5 6 7 8

1 and P

1 and 2

Half equipped Fully equipped

0 0 0 0

0 1 1 1

2 and 3

3 and 4


1 0 1 0

0 1 1 1

4 and 5

5 and 6


0 1 0 1

0 1 1 1

6 and 7

7 and 8


1 1 1 1

0 1 1 1

In slot #7

Not equipped Equipped

In slot #14

Not equipped Equipped

Available (M:N)

Without traffic With traffic

Not available (0:N)

0 1 0 1 0 0 1 0 1 1

•

MegaStar 155 M:N

• • • •

35

The AUX and SPUR serial ports allow the Tx and Rx signals to be selectable between two mark/space voltage polarities: RS232 and inverted RS232 (only the Tx and Rx data lines are inverted, not handshaking). The following jumpers select these settings (see Table 3-3 for jumper locations on the PC card): Table 3-3 SPU Controller Jumpers Label

Function

Jumper

JP1-WDOG

Sys operation Sys develop.

Out In

JP2-SPUR

RS-232 levels RS-423 levels

Out In

JP3-AUX

RS-232 levels RS-423 levels

Out In

JP4-M:N

1+1 0/M:N

Out In

JP5-M:N

1+1 0/M:N

Out In

The system protection configuration is set with jumper straps J4 and J5 (see Figure 3-1 for jumper locations):

• •

36

• • •


JP4 and JP5

PROTECTION TYPE

Removed

Sets system for 1+1 protection.

Installed

Sets system for M:N protection.

Installation Procedures Set the Radio’s Network Address When the MegaStar radio is configured in the factory, it may be assigned a generic equipment and orderwire address. You can make any necessary changes to these addresses based on your network plan. To change the address, do the following: 1. Connect FarScan to the radio. (Refer to the FarScan manual for

details.) 2. Turn the system connection online. 3. Send manual command

908, “Set Equipment Address” and click “Alter Setting.” The Form Command Variable Pattern window will appear.

4. Select the address

range that the new address falls within and click “Next.” For example, if the desired address is 283, select “Address Range 256 - 511.”

•

MegaStar 155 M:N

• • • •

37

5. In the next window that

appears, click on the values that add up to the desired address. Click “Next.” For example, 256 + 16 + 08 + 02 + 01 = 283 6. When the confirmation

window appears, check that the values add up to the desired address and click “Send” to set the new address.

Connect the Antenna Follow these steps to install each antenna: 1. Mount the antenna according to standard practice. (If they are

available, refer to the manufacturer’s instructions.)

• •

38

• • •


2. Determine lengths and prepare the flexible/rigid waveguide that

will be used to connect the antenna to the radio. Use the flexible waveguide to interface between the radio’s radio’ s waveguide flange and the rigid waveguide. This will allow for flexibility in movement should a seismic disturbance occur. 3. Connect the waveguide to the antenna.

In M:N networks, the return loss presented to the radio at the antenna waveguide must not be lower than 24 dB. 4. Connect the antenna waveguide to the radio.

The antenna system waveguide flex section connects to the waveguide flange on the antenna coupling unit. 5. Secure all cables and waveguide assemblies. 6. Ground the antenna waveguide according to recommended or

regulatory practice. 7. Pressurize the waveguide and check all waveguide connections

for leaks. Tighten the joints as required.

Align the Antenna 1. Point the antenna as directly as possible towards the antenna

for the coordinating site. If you are not familiar with FarScan, please refer to the FarScan manual for detailed information on how to carry out the following steps. 2. Connect a FarScan computer to the radio.

•

MegaStar 155 M:N

• • • •

39

3. Use SelectPoll to poll the target equipment.

Send command 174 or 176 for the receiver/antenna to be aligned. (For example, for Receiver A1 [or B1], send FarScan RSL command 174.) 4. Check the AGC voltage using the test points on the Alarm

Display card.

DAC GND

Only the receiver chosen by the RSL command will display its AGC voltage at the AGC test point. In systems equipped with IF Combiners, the AGC test points on the Alarm Display Unit are disabled. disabled. Use the RSL indicated in FarScan to align the antenna. 5. In a system equipped with IF Combiners, use FarScan command

174 to view the main antenna RSL. Use command 175 to view the diversity antenna RSL. 6. Fine-tune the antenna alignment until the AGC voltage indicates

a maximum receive signal level.

• •

40

• • •


7. If you are aligning a diversity antenna, repeat steps 1 through

step 6. 6.

Connect the FarScan Computer Use this procedure to connect the FarScan computer to the MegaStar radio’s Aux or Spur ports: 1. Remove the SPU Controller card. 2. If necessary, remove the Aux strap (JP2) or Spur strap (JP3) for

the RS232. Figure Figure 3-4 JP2 and JP3 JP3 Stra Straps ps

3. Reinsert the SPU Controller. The SPU shelf will momentarily

reboot. (This is a non-service affecting procedure.) While the SPU shelf reboots, the SPU Controller is temporarily prevented from responding to SCAN information. SCAN response will resume after the reboot is complete.

Verify the DVB Port Settings Verify the Aux or Spur DVB port settings by doing the following: 1. Remove the SPU Controller Controlle r card and verify that the Aux or Spur

port straps are set correctly: •

MegaStar 155 M:N

• • • •

41

RS 232 - JP2 (Aux) or JP3 (Spur) = removed 2. Replace the SPU Controller card.

Removing and reinserting the SPU Controller will cause the SPU shelf to reboot. This non service-affecting initialization process will momentarily prevent SCAN information from being responded to. SCAN response will resume after the SPU Controller initialization routine is complete. Add a Fictitious Site The FarScan for Windows manual contains more detailed information about the following steps. Add a fictitious site to the current equipment (*.eqw) file using the Equipment File Editor. 1. Assign a site number (between 1 and 999) that is not already in

use. 2. Assign a hardware address (between 1 and 999) that is not

already in use. Refer to the following note: The hardware address for the fictitious site must fall within one of the following DVB address ranges that does not contain any addresses used or planned for use in the system:

DVB ranges: 001 to 095 096 to 191

192 to 287 288 to 543

544 to 799 800 to 999

3. Set the equipment type for this fictitious site to “unknown.”

• •

42

• • •


The following example shows an Equipment File set up with a fictitious site: Site #

Site Name

Hardware Address #

Type

001

Nearbyhill

1

MegaStar

002

Farawayhill

2

MegaStar

003a

Fiktishusite

100

Unknownb

a. Site added. b. DVB range selected 096 to 191

4. Connect the FarScan computer to the FARSCAN port (DB25) on

the Alarm Display card. 5. Send command 911, “Display Port Baud Rate,” and click

“Inquiry.” 6. Highlight Display

Current Baud Rate and Comm. 8, AUX or Comm. 9, SPUR. 7. Click “Next.” When the

Full Selection window appears, click “Send.”

The current settings will be displayed in the Commands/Responses portion of the Manual Command window. If the Aux or Spur port baud rate is not set for 9600 and no parity, skip to “Set Parity” on page 44. If the port baud rate is already set for 9600 and no parity, skip to step 5 in “Set Parity.” •

MegaStar 155 M:N

• • • •

43

Set Parity If the Aux or Spur port is not set for 9600 with “no parity,” do the following: 1. Send manual command 913, “Set Port Baud Rate,” and click

“Alter Setting” to change the Aux or Spur port settings. 2. Highlight Set New Baud Rate and the appropriate Comm. port

for Aux or Spur. Click “Next.” 3. Highlight Set Baud Rate 9600 bps and no parity. Click “Next.” 4. When the confirmation window appears, click “Send.” 5. Send manual command 913, “Set Port Baud Rate,” and click

“Alter Setting” to change the Aux or Spur port settings. 6. Highlight Save Current Setting and the appropriate Comm. port

for Aux or Spur. Click “Next.” 7. Highlight 9600 bps and no parity. Click “Next.” 8. When the confirmation window appears, click “Send.” 9. Send manual command 913, “Set Port Baud Rate,” and click

“Alter Setting” to change the Aux or Spur port settings. 10. Highlight Confirm New Setting and the appropriate Comm. port

for Aux or Spur. Click “Next.” 11. Highlight 9600 bps and no parity. Click “Next.” 12. When the confirmation window appears, click “Send.” 13. Send command 911, “Display Port Baud Rate,” and click

“Inquiry.” 14. Highlight Display Current Baud Rate and the appropriate Comm.

port. Click “Next.”

• •

44

• • •


15. When the confirmation window appears, click “Send.” The Aux

or Spur port baud rate changes will be displayed in i n the Commands/Responses portion of the Manual Command window. 16. Send command 919, “Set All DVB Ports,” and click “Alter

Setting.” 17. In the window that appears, highlight Set New DVB Command

Mask and Comm. 8, AUX or Comm. 9, SPUR. Click “Next.” 18. When the confirmation window appears, click “Send.”

•

MegaStar 155 M:N

• • • •

45

Set Aux/Spur DVB Port Settings Pass responses to the Aux or Spur port Response Mask. This is only for the DVB address range in which the fictitious site hardware address falls. Do the following: 1. Send command 919, “Set All DVB Ports,” and click “Alter

Setting.” 2. In the window that

appears, highlight Set New DVB Response Mask and Comm. 8, AUX or Comm. 9, SPUR. Click “Next.”

3. To pass the DVB range

that the fictitious site’s hardware address falls into, highlight the following selections: For example: Fiktishusite hardware address #: 100 PASS DVB range: 096 to 191

• •

46

• • •


4. Send command 917, “Display DVB Port Status,” and click

“Inquiry.” 5. In the window that

appears, highlight Display Current Response Mask and Comm. 8, AUX or Comm. 9, SPUR. Click “Next.”

6. When the confirmation window appears, click “Send.” 7. Change the Master Site # in the Equipment File to the site

number of the fictitious site. (Refer to the FarScan for Windows Manual .)

•

MegaStar 155 M:N

• • • •

47

Verify Command Mask Changes Verify the Aux or Spur port command mask changes by doing the following: 1. Send command 917, “Display DVB Port Status,” and click

“Inquiry.” 2. In the window that

appears, highlight Display Current Command Mask and Comm. 8, AUX or Comm. 9, SPUR. Click “Next.”

3. When the confirmation window appears, click “Send.”

Completing the Connection 1. Disconnect the FarScan computer from the FARSCAN port on

the Alarm Display card. 2. Connect the FarScan computer to the Aux or Spur port on the

SPU Controller.

• •

48

• • •


3. In FarScan’s System Connection setup menu, verify that the

COM port settings are as follows: Baud Rate: 9600 Data Bits: 8 Parity: None Stop Bits: 1 4. Deselect both Modem

Connection and Check Hardware Connection boxes. Click “Ok.”

5. Click “Connect.” The Sys “LED” in the main FarScan window

will turn green. The MegaStar Aux or Spur port is now ready for use as a permanent FarScan connection.

•

MegaStar 155 M:N

• • • •

49

Connect Other Radios to MegaStar This procedure describes how to connect the following radios to MegaStar:

• Constellation • DVA • DVL/DVT • DVM Excell • DVM-XT • MegaStar 1+1 • MegaStar M:N interconnection These instructions assume that the Scan baud rate is 9600. It also assumes that you are using FarScan for Windows.

Equipment Required To connect other radios to MegaStar, you will need the following:

• FarScan for Windows computer connected to the FarScan connector on the Alarm Display card.

• Null cable (pin 2 to 3, pin 3 to 2).

DVA 1. On the DVA, connect to COMM 1, 2, 3, 4 or 5. 2. If you are using COMM 1 or 2, set the Protection/Alarm card

strap S1-3 to OFF. 3. Make sure the Com port is set to 9600 baud.

• •

50

• • •


DVL/DVT Repeater 1. Connect to INT CNTL (J-31).

Terminal 2. Connect to INT CNTL (J-31) or EXT B (J-30). 3. On the Protection/Alarm card, set strap A/B to “A.”

DVM Excell Repeater 1. Connect one end of the null cable to INT CNTL (J31).

Terminal 2. Connect one end of the null cable to INT CNTL (J-31) or EXT B

(J30). 3. On the Protection/Alarm card, S1-5 must be ON. Strap B-2

should be set for 9600 baud.

DVM-XT Repeater 1. Connect to INT CNTL (J-31).

Terminal 2. Connect to INT CNTL (J-15) or EXT B COMM 2 (J-17). 3. On the Protection/Alarm card, set strap A/B to “A.”

•

MegaStar 155 M:N

• • • •

51

MegaStar 1+1 1. If you are connecting to the SPUR port, strap JP2 on the SPU

Controller to “IN.” If you are connecting to the AUX port, strap JP3 on the SPU Controller to “IN.” 2. Start FarScan and turn the connection online. (Refer to the

FarScan for Windows manual for details.) 3. Send manual command 913, “Set Port Baud Rate,” and click

“Alter Setting.” 4. In the window that

appears, highlight ‘Set New Baud Rate’ and ‘Comm. 8, AUX’ or ‘Comm. 9, SPUR’. Click “Next.”

• •

52

• • •


5. Highlight Set Baud Rate

9600 bps and Odd Parity. Click “Next.”

6. When the ‘Full Selection’

window appears, click “Send.”

•

MegaStar 155 M:N

• • • •

53

7. Again, send command 913, “Set Port Baud Rate,” and click

“Alter Setting.” 8. Highlight ‘Save Current

Setting’ and ‘Comm. 8, AUX’ or ‘Comm. 9, SPUR.’ Click “Next.”

9. Highlight Set Baud Rate

9600 bps and Odd Parity. Click “Next.”

• •

54

• • •


The following window will appear: Click “Send.”

10. Once again, send command 913, “Set Port Baud Rate,” and click

“Alter Setting.” 11. Highlight ‘Confirm New

Setting’ and ‘Comm. 8, AUX’ or ‘Comm. 9, SPUR.’ Click “Next.”

•

MegaStar 155 M:N

• • • •

55

12. In the window that

appears, highlight ‘Set Baud Rate 9600 bps’ and ‘Odd Parity.’ Click “Next.” 13. When the Full Selection

window appears, click “Send.”

14. Send command 911, “Display Port Baud Rate,” and click

“Inquiry.” 15. Highlight Display

Current Baud Rate and Comm. 8, AUX or Comm. 9, SPUR. 16. Click “Next.” When the

Full Selection window appears, click “Send.”

The current settings will be displayed in the Commands/Responses portion of the Manual Command window.

• •

56

• • •


MegaStar M:N In an M:N system, certain intershelf port connections are essential to the proper operation of the system. The protection SPU must have a direct connection to each of the other SPUs that make up that side of the M:N system’s hop. These direct connections are used only by the automatic protection switching algorithm. Therefore, SCAN messages cannot pass through them. To allow SCAN commands to reach every SPU, the AUX and SPUR ports of neighboring SPUs should be connected. Refer to the illustrations that follow for general interconnection information.

•

MegaStar 155 M:N

• • • •

57

1:2 and 1:3 Configurations If the system is a 1:2 or larger, connect the protection SPU's Megascan port to the Megascan port of the SPU Controller that handles channels 2 and 3.

SCAN Channel Connect the Protection SPU's AUX port to the SPUR port of the SPU Controller that handles channels 2 and 3. Figure 3-5

1:3 System Interconnection SCAN channel

1

• •

58

• • •


P

2

3

1

P

2

3

1:4 and 1:5 Configurations If the system is a 1:4 or larger, connect the protection SPU's CIT port to the Megascan port of the SPU which handles channels 4 and 5.

SCAN Channel Connect the AUX port of the SPU which handles channels 2 and 3 to the SPUR port of the SPU which handles channels 4 and 5. Figure 3-6


1

P

2

3

4

5

1

P

2

3

4

5

•

MegaStar 155 M:N

• • • •

59

1:6 and 1:7 Configurations If the system is a 1:6 or larger, connect the protection SPU's SPUR port to the Megascan port of the SPU which handles channels 6 and 7.

SCAN Channel Connect the AUX port of the SPU which handles channels 4 and 5 to the SPUR port of the SPU which handles channels 6 and 7. Connect the F1 “A” and F1 “B” ports (via RF) to the SPU at the far end of the hop which handles the same channels as the SPU at the near end. Figure 3-7


1

• •

60

• • •


P

2

3

4

5

6

7

1

P

2

3

4

5

6

7

Verify Port Connections FarScan manual command 910, Port Connection Status, can be used to check the status of the port connections in a M:N system. It returns the status of the AUX, SPUR, CIT, F1 “A,” F1 “B,” and Megascan ports. These ports (or a subset of them) are used by the automatic protection switching algorithm to send the messages which enable the M:N system to switch channels to or away from the protection channel. Each of these ports will be in one of five states, which are as follows: Port Connection Not Needed - This means that the M:N system does not

need the port to be connected. For instance, only the Protection SPU of a 1:4 or larger needs the CIT port connection, so the other SPUs in the system would report, “CIT Connection Not Needed.” Port Can’t Make Connection (alarm state) - If an SPU needs its port to be

connected, it first sends a command 008 out that port to get the address of the SPU connected to the other end. If it does not receive a response to its command 008, then the status of the port is, “Port Can't Make Connection,” and it will keep sending command 008. Port Incorrectly Connected (Alarm state) - If an SPU needs its port to be

connected, it first sends command 008 out that port to get the address of the SPU connected to the other end. If it receives a response, it begins sending “heartbeat” messages to the SPU at the other end of the port, and it expects to receive similar heartbeats from the other end. If it does not receive heartbeats from the other end, or if the received heartbeats contain unexpected information, then it determines that something is not right at the other end, and the status of the port is, “Port Incorrectly Connected.” Two possible reasons for this are that the port is connected to the wrong SPU or it is connected to the correct SPU but to the wrong port. An SPU sends “heartbeats” containing its local equipment address, its ID number, the port through which it is connected to the other SPU, and an indication whether or not it is receiving the heartbeats of the other SPU. (ID Number: Each SPU on one side of a M:N hop has a unique ID number which is used by the automatic protection switching algorithm.) An SPU determines its ID number by looking at the settings of the dip switches on its SPU controller card. (See page 35 for the dip switch settings.)

•

MegaStar 155 M:N

• • • •

61

Table 3-4 SPU Identification

M:N

0:N

ID

1 and P

1 and 2

0

2 and 3

3 and 4

1

4 and 5

5 and 6

2

6 and 7

7 and 8

3

Port Connection On Line - When an SPU has received a response to a

command 008 sent out through a needed port, and has received a valid heartbeat from the SPU at the other end of the port’s connection, then the status of the port becomes “Port Connection On Line.” Port OK, but Not Monitored - Depending on the value of N in a M:N system,

and on whether this is the protection SPU or not, the Megascan, CIT, and/or SPUR ports will be “Dedicated” to the protection switching algorithm's use. The Port will only be dedicated once a port at one end of the connection or the other gets the status “Port Connection On Line.” Once a port is dedicated, SCAN messages can no longer pass through it, and the system will no longer monitor the port to insure that the connection is maintained. Thus, the status of the port becomes “Port OK, but Not Monitored.”

• •

62

• • •


Wiring for Positive or Negative Battery Input If your radio is eqiupped with a -48V multiplexer, do not attempt this procedure. The MegaStar radio is shipped with the Fuse Panel wired for either a negative polarity or a positive polarity battery source. If it is desired to change the power source polarity from the default (factory) wiring (i.e., from positive to negative, or from negative to positive), do the following.

SD-110617 Fuse Panel 1. Disassemble and rewire the Fuse Panel as shown in Figures 3-8

and 3-9. After rewiring, reassemble the Fuse Panel by reversing the steps for disassembly. For example, for positive (A) polarity (negative ground), the black wires of each fuse circuit are connected to “CKT” lugs. The colored wires connect to the “RET” lugs.

For negative (B) polarity (positive ground), the colored wires connect to the “CKT” lugs, while the black wires connect to the “RET” lugs.

•

MegaStar 155 M:N

• • • •

63

Figure 3-8

• •

64

• • •


MegaStar M:N Fuse Panel Wiring, Negative Polarity

Figure 3-9

MegaStar M:N Fuse Panel Wiring, Positive Polarity

•

MegaStar 155 M:N

• • • •

65

Figure 3-10 Changing Polarities on the M:N Fuse Panel

3 Remove the 4 screws holding the panel to the shelf.

2 Disconnect all wiring from the connectors. Remove the wiring.

1 Open the panel door.

4 On the Fuse Panel, remove the 6 screws that hold the panel to the housing.

• •

66

• • •


1. For a negative polarity battery source, wire the battery leads as

shown in Figure 3-11. Figure 3-11

Negative Polarity Wiring

Connect yellow lead

Connect yellow lead

2. For a positive polarity battery source, wire the battery leads as

shown in Figure 3-12. Figure 3-12

Positive Polarity Wiring

Connect yellow lead

Connect yellow lead

•

MegaStar 155 M:N

• • • •

67

Make a Delay Compensation Cable This procedure is for radios equipped with IF Combiners.

Determine the Cable Length 1. Determine the difference in length between the main and

diversity antenna waveguide feedlines. Each feedline length is the distance between the connection point at the antenna and “top of rack” waveguide connection point on the equipment rack. 2. Calculate the difference in delay between the main and diversity

feedlines by using one of the following formulas: delay difference = | main - diversity |

delay difference (nanoseconds) = length difference (feet) x 1.02 nS/foot x K

or delay difference (nanoseconds) = length difference (meters) x 3.34 nS/meter x K where the value of “K” is obtained from Figure 3-13 on page 69.

• •

68

• • •


Figure 3-13 Value of K vs. Frequency and Waveguide Type 1.65 1.60 1.55

EW77

1.50

EW63

EW90

1.45

EW52

EW77

EW52

1.40

EW90

EW63

1.35

EW127

1.30

EW64 EW127A

1.25 1.20 EW64

1.15 4

4.5

5

5.5

6

6.5

7

7.5 8

8.5

9

9.5 10 10. 11 11. 12 12. 13 13. 5 5 5 5

Frequency (GHz) 3. Calculate the length of delay cable required to compensate for

the delay difference calculated in step 2: length (feet) = delay difference (nanoseconds) x 1 foot/1.02 nS x 0.67 = delay difference (nanoseconds) x 0.66

or length (meters) = delay difference (nanoseconds) x 1 meter/3.34 nS x 0.67 = delay difference (nanoseconds) x 0.2

•

MegaStar 155 M:N

• • • •

69

Prepare and Connect the Cable The delay compensation cable (type RG-174) is stored on spools underneath the lower SPU shelf. If the spool is marked with option -050, it contains 50 feet of cable. If it is option -100, it contains 100 feet of cable. 1. Remove the wingnut from one of the cable spools and remove

the spool. 2. Measure the length of delay cable that you will need and cut it. 3. Attach a female SMA connector to one end of the cable. 4. Attach a male SA connector to the other end of the cable. 5. Connect the delay cable to the IF input port of the IF Combiner

associated with the relatively short antenna waveguide feedline. Typically, this will be the Diversity IF input. In some cases, the Main IF input may be connected to the lower antenna thereby requiring that the delay cable be installed on the Main IF input. 6. Verify that the voltage at the “DELAY” testpoint on the IF

Combiner faceplate is 0 Volts +/- 500 mV. 7. Confirm that the “EQM” voltage test point on the Decoder card

reads less than 60 mV. 8. Wrap the delay cable back onto the spool and secure it back in

place on the rack with the wingnut.

• •

70

• • •


Chapter 4 Verification


When the MegaStar radio has been installed, you will need to check t he following systems before putting the radio into service:

• Inventory the equipment using the MegaStar Inventory program • Verify the RFU and SPU controller software issue numbers • Test the Decoder cards • Check the phase lock source crystal frequency for the Transmitter and Receiver

• Check the transmitter output power and ATPC status • Verify the receive signal level • Test the protection system Some of these procedures involve the use of FarScan. Only the command numbers are given. If you need more detailed information, please refer to the FarScan for Windows Manual .

•

MegaStar 155 M:N

• • • •

71

Tools and Equipment Required The following items are required to verify the system.

• Jeweller’s screwdriver • FarScan computer with: • Current equipment database • MegaStar Inventory software • Various adapters and test cables (specified in each procedure) Specifications for the following units are described on page 29.

• Digital multimeter • Power meter • Frequency counter

Procedures Inventory Equipment Equipment Required:

• FarScan computer This procedure is given in detail in Chapter 4 of the MegaStar Software Utilities Manual . 1. Make sure the computer is connected to the radio. 2. Start and set up the MegaStar Inventory program. 3. Select the target site (under “Equipment Address”). 4. Select “All” in the list of equipment to inventory the entire RFU

or SPU shelf.

• •

72

• • •


Equipment selections are also available from the menu bar under “Inventory.”

Each installed unit must respond. Failure to respond should be interpreted as a potential failure. Repeat the inventory, targeting units that don’t respond as expected.

Verify RFU and SPU Controller Software Version Equipment Required:

• FarScan computer Refer to the OMSA1 report which is in the Sales Order Specific binder that accompanies this instruction manual for software version information. 1. To verify that the correct version of software is loaded in the

RFU and SPU controllers, send FarScan command 010, alter. Select SPU, RFU1 and RFU2 as appropriate.

Test the Decoder Card Equipment Required:

• Digital multimeter (page 29) 1. Connect the common lead of the digital multimeter (DMM) to the

ground test point (GND) on the Alarm Display Unit. 2. Connect the second DMM lead to the “EQM MON” test point on

the card. The voltage should be <100mV. A higher reading indicates a degraded signal. This may be caused by a problem with antenna alignment, far-end transmit power or frequency, or a near-end receiver problem. 3. Repeat steps 1 and 2 for the remaining Decoder(s). •

MegaStar 155 M:N

• • • •

73

Test the Phase Lock Source The PLS is shock mounted to reduce sensitivity to mechanically-induced changes in output frequency. However, any adjustments should be made while the radio is offline. Tools and Equipment Required:

• Jeweller’s screwdriver • Frequency counter (page 29) 1. Locate the phase lock source (PLS) on the Transmitter or

Receiver plate assembly. 2. Connect the frequency counter to the RF MON port (SMA

connector J2) of the PLS. 3. Verify that the crystal frequency is the same as displayed on the

label, ±300 Hz (0.0003% or 3 ppm). 4. If the frequency is out of range, use the jeweller’s screwdriver to

carefully adjust the tuning screw until the frequency counter displays the correct frequency, ±30 Hz. 5. Repeat the previous steps for all equipped Transmit and

Receive phase lock sources on the radio assembly.

Check the Transmitter Output Power Tools and Equipment Required:

• FarScan computer • Power meter and medium power head ( page 29) 1. Verify that the power switch on the Power Amplifier (PA) is

turned on.

• •

74

• • •


2. Use FarScan to check the output power (dBm). Record the

value. Send the following manual commands: Radio 1 Tx Level (command 164, inquiry) Radio 2 Tx Level (command 166, inquiry) You should receive a two-line response indicating that each unit is responding correctly. Some correct responses are shown below: 164 Radio 1 Tx Level <> 1. Radio 2. Tx A1 Level +30.5 dBm* 166 Radio 2 Tx Level <> 1. Radio 2. Tx A1 Level +30.5 dBm* *Calculated value at top of rack.

When set to “low,” the Automatic Transmit Power Control (ATPC) will reduce RF output power by 10 dB (from its nominal setting). Unless you are licensed for ATPC, you should set the radio for “ATPC INHIBITED” and “PA HIGH POWER ON” to obtain the correct PA output power. 3. Connect the medium power head to the calibrated monitor point

on the ACU. (The monitor point is labeled “Coupling loss from antenna flange.”) 4. Add the output power number to the coupling loss number

(shown on the monitor point label) to get the power at the top of the rack. Example: RF Monitor Value

-3 dBm

+ Coupling Loss

=

Top of Rack Power

+

=

27 dBm

30 dBm

•

MegaStar 155 M:N

• • • •

75

5. If you need to change the PA output power setting, use FarScan

to alter the radio ATPC status (command 550, alter). 6. Repeat step 1 through step 5 for the remaining PA(s).

Verify the Receive Signal Level Tools and Equipment Required:

• FarScan computer Consult the path performance calculation provided for your system to get nominal RSL. The correct RSL would be the nominal RSL from the path performance calculation sheet, +/-2 dB. 1. Use FarScan to verify that the RSL is correct. Send commands

174 and 176 (see example below). The accuracy of FarScan is ±4dB.

You should receive a two-line response indicating that each unit is responding correctly. Some correct responses are shown below: 174 Radio 1 Rx AGC Monitor <> 1. Radio 2. Rx A1 Level -46.8 dBm 176 Radio 2 Rx AGC Monitor <> 1. Radio 2. Rx A2 Level -43.8 dBm

• •

76

• • •


Chapter 5 Operation


System Operation System operation involves the following functions:

• Monitoring the MegaStar radio’s performance • Managing the radio’s operation • Supervising the telecommunications network • Configuring traffic These functions are carried out using FarScan software.

FarScan Operation This manual contains the basic information needed for using FarScan to operate and monitor a MegaStar radio. For more detailed instructions on how to use FarScan, please refer to the FarScan for Windows Manual or online help.

In this manual, the word “Return” indicates the key marked “Return” or “Enter” on your keyboard.

•

MegaStar 155 M:N

• • • •

77

The tables on the following pages give FarScan’s MegaStar manual commands, which are listed by function, command number and command name. Status or command items that appear when a command is executed are given below the command name in the tables. The letters in brackets next to each item indicate whether they are alterable [a] or for inquiry [i] only.

Refer to the FarScan manual and glossary (located on the MegaStar CD) for a more detailed list of FarScan commands and their functions. Some FarScan manual commands may affect traffic. Read all messages that appear when a command is executed.

Third-Party Multiplexer The commands that control the multiplexer are described in the documents provided by the equipment manufacturer.

FarScan Manual Commands For more details on how to operate FarScan, please refer to the FarScan manual.

• •

78

• • •

Chapter 5 Operation

Protection Switching Function

No.

Command

Radio Transmitter Status Active or Offline

134

Radio 1 Tx Switch Status [i] Radio 1 Tx Active [i] Radio 1 Tx Offline

135

Radio 2 Tx Switch Status [i] Radio 2 Tx Active [i] Radio 2 Tx Offline

941

Radio 1 Tx Switch Status/Control a [i] Radio 1 Tx Active [i] Radio 1 Tx Offline

942

Radio 2 Tx Switch Status/Control a [i] Radio 2 Tx Active [i] Radio 2 Tx Offline

560

1:N PROT Switching Commands

562

Undo Manual Switching Command

1:N System and Channel Affecting Commands

a. This is an AutoPoll command only.

Tests and Loopbacks Function

No.

Command

Tributary 1 Status/Command

525

[a] Disable Loopback [a] Enable Loopback

Tributary 2 Status/Command

526

[a] Disable Loopback [a] Enable Loopback

•

MegaStar 155 M:N

• • • •

79

Monitor Signal Levels Function

No.

Command

Radio Rx 1 Level

174

Radio 1 Rx AGC Monitor [i] Rx 1 Level -##.# dBma

Radio Rx 2 Level

176

Radio 2 Rx AGC Monitor [i] Rx 1 Level -##.# dBma

a. This value is calculated at the top of the rack.

Initialize System

• •

80

• • •

Chapter 5 Operation

Function

No. Command

Display Equipment Address (of directly connected site only)

008 008

Displa Displayy Equip Equipme ment nt Addre Address ss

Set Equipment Address

908

Set Equipment Address

Set SCAN Bridge Connection ion

919

Set All DV DVB Ports

Set Orderwire Address

257

VF Orderwire 1 Status/Command

258 258

VF Orde Orderw rwire ire 2 Stat Status us/C /Com omma mand nd

Set Ext Exte ernal Ala Alarrm and Contro trol

004

Exte xterna rnal Ala Alarm rm & Contro trol [a] Set External Out 1 Open [a] Set External Out 1 Closed [a] Set External Out 2 Open [a] Set External Out 2 Closed [a] Set External Out 3 Open [a] Set External Out 3 Closed

Set E1/E2 Orderwire On/Off Hook Set A or B Mute Disable or Enable

253 253

OVERHE OVER HEAD AD Statu tatus/C s/Com omma mand nd [a] A E1/E2 Mute Disable/Enable [a] B E1/E2 Mute Disable/Enable [a] E1 Handset Not Muted [a] E1 Handset Muted [a] E2 Handset Not Muted [a] E2 Handset Muted

Function

No. Command

ATPC Status Enable ATPC Set PA Low Power Set PA High Power Inhibit ATPC, Set PA Low Power Inhibit ATPC, Set PA High Power

550 550

Radio Radio ATP ATPC C Sta Statu tus/C s/Com omma mand nd

Set Channel Priority and Set Value of N in 1:N System

568 568

1:N CH Prio Priorit rityy Sta Status tus/Co /Comm mmand and

Verify Port Connection in 1:N System

910 910

Port Port Co Connec nnecti tion on St Statu atus

In a ring configuration, the orderwire is manually muted on the A or B side to prevent singing or ringing. If a two-way failure occurs on one of the hops, the A or B side mute can be disabled to allow orderwire operation in both ends of the failed hop.

Check System Status Function

No.

Command

Global Status Minor Major Mux Mux Modem Radio

001

Global St Status tus

Alarm Display ACO Switch Enabled/Disabled

004

[i] [i] ACO ACO Switc Switch h Up Up or Down Down

Powe Powerr Supp Supply ly 1

231 231

Powe Powerr Supp Supply ly 1 Status tatus [i] Power Supply 1 Normal [i] Power Supply 1 Summary Alarm

Powe Powerr Supp Supply ly 2

232 232

Powe Powerr Supp Supply ly 2 Status tatus [i] Power Supply 2 Normal [i] Power Supply 2 Summary Alarm

SPU Controller

905

SPU Controller Status

•

MegaStar 155 M:N

• • • •

81

• •

82

• • •

Chapter 5 Operation

Function

No.

Command

Overhead Processor

253

Overhead St Status/Command [i] Overhead PROC Fuse Normal or Alarm

VF Orderwire 1

257

VF Orderwire 1 Status/Command

VF Orderw Orderwire ire 2

258 258

VF Orderwi Orderwire re 2 Status/C tatus/Com omma mand nd

Data Orderwire

259

Data Orderwire Status

Modulator 1 IS3 1 Input IS3 2 Input IS3 Selected Output

114

Modu odulato latorr 1 Statu tatuss [i] Modulator 1 IS3 1 Input Normal or Alarm [i] Modulator 1 IS3 2 Input Normal or Alarm [i] Modulator 1 IS3 1 or 2 Selected [i] Modulator 1 Output Normal or Alarm

Modulator 2 IS3 1 Input IS3 2 Input IS3 1 Selected Output

115

Modu odulato latorr 2 Statu tatuss [i] Modulator 2 IS3 1 Input Normal or Alarm [i] Modulator 2 IS3 2 Input Normal or Alarm [i] Modulator 2 IS3 1 or 2 Selected [i] Modulator 2 Output Normal or Alarm

Decoder 1 Input FEC Lock

112

Decoder 1 Statu atus [i] Decoder 1 Input Normal or Alarm [i] Decoder 1 FEC Normal or Alarm [i] Decoder 1 Lock Normal or Alarm

Decoder 2 Input FEC Lock

113

Decoder 2 Status tus [i] Decoder 2 Input Normal or Alarm [i] Decoder 2 FEC Normal or Alarm [i] Decoder 2 Lock Normal or Alarm

Demodulator 1 Slope Stress

116

Dem Demodula odulato torr 1 Statu tatuss [i] Demod 1 Slope Stress Normal or Alarm [i] IF Input Normal [i] IF Input Alarm

Demodulator 2 Slope Stress

117

Demo Demod dulato ulatorr 2 Statu tatuss [i] Demod 2 Slope Stress Normal or Alarm [i] IF Input Normal [i] IF Input Alarm

Switch Interface Tx & Rx Status Activity Input from Demod HS1, HS2 Switch Position

118

[i] [i] Swi Switc tch h Int Inte erfac rface e Sta Statu tuss

Function

No.

Command

Radio 1 Tx PLS Lock Normal Radio 2 Tx PLS Lock Alarm

132 133

Radio 1 Tx PLS Status Radio 2 Tx PLS Status

Power Amplifier 1 Power Amplifier 2

130 131

Radio 1 CTRL PA Status Radio 2 CTRL PA Status

IF Filter Amplifier 1 IF Filter Amplifier 2

136 137

Radio 1 IF AMP Status Radio 2 IF AMP Status

Radio 1 Rx PLS Lock Normal Radio 2 Rx PLS Lock Alarm

140 141

Radio 1 Rx PLS Status Radio 2 Rx PLS Status

LNC 1 LNC 2

138 139

Radio 1 LNC Status Radio 2 LNC Status

1:N Status Commands

150

SYS Protection Status

151

Protection Channel Status

160

Channel Traffic Status

•

MegaStar 155 M:N

• • • •

83

• •

84

• • •

Chapter 5 Operation

Chapter 6 Routine Maintenance


Periodic Checks The radio should be checked periodically for proper performance. Routinely check the Alarm Display LEDs (on the right side of each SPU shelf) for red fault lights. Also, check the history files available from FarScan.

Inventory and Maintenance The MegaStar Inventory Program can be used to t ake an equipment inventory of the RFU and SPU units. After any unit is replaced, re-run the inventory program. (Refer to the MegaStar Software Utilities manual for more details.) By exercising the Inventory program you verify that the MegaStar controllers can communicate with the replacement module and get a secondary indication that stored performance parameters have been accessed.

•

MegaStar 155 M:N

• • • •

85

Maintenance Records Recording Information There are two measurements that the FCC requires you to make once per year after the radio is installed:

• Phase Locked Source (PLS) frequency (see page 74) • Output power (see page 74) These measurements, when compared with those made during initial testing at the factory (refer to the factory test data sheets), will indicate any degradation in system performance. Record the results of these measurements on the Routine Maintenance Log Form, located in the “Forms” section of this manual.

The Routine Maintenance Log Form is designed for use in a 5-to 7-year period. Make additional copies of the form included in this manual, or request them from Harris . 1. Enter the date that the initial measurements are taken in the

space provided. 2. Enter the sales order number for the rack in which the radio is

mounted in the ‘Rack #’ space. 3. Enter the assigned radio site number in the ‘Radio Site #’ space. 4. Enter the radio’s location (or site name) in the ‘Location’ space. 5. Enter the name of the coordinating site (far-end radio) in the

‘Coordinating Site’ space.

• •

86

• • •


Measurements Column

Entry

What to Measure

Routine measurements obtained each year.

Where to Measure

Access point in the assembly where the measurement should be made.

Initial Level

Initial alignment measurements.

Year After Installation

Routine measurements made at yearly intervals. One year after installation, enter measurements in the “1st” column, and so on.

Notes

Any action taken following a failed measurement or comments about a measurement or test. For example, you might note that a measurement fell below the required standard and you replaced the out-of-spec unit.

The Routine Maintenance Log Form lists the routine measurements for non-protected and hot standby terminals and repeaters. Fill out only the required routine measurements for your configuration.

•

MegaStar 155 M:N

• • • •

87

Switch Settings It is recommended that you also indicate SPU Controller switch settings on the Routine Maintenance Log Form. Each time the equipment configuration changes, indicate the switch settings. Refer to switch setting information starting on page 31 for more details.

• •

88

• • •


Chapter 7 Troubleshooting


This section covers troubleshooting procedures for MegaStar’s subassemblies. You can usually locate the source of a problem in the radio by checking for a continuously lit fault LED on one or more of the plug-in units. There may also be a fault indication in the status report issued by FarScan. If no fault LEDs are lit, and no fault is indicated in the FarScan status report, locate the problem through the process of elimination. To do this, you will need a spares kit for your radio, available from Harris.

Only use the elimination method when all other possible sources of trouble have been eliminated.

Remember to reinstall the original unit if the spare does not clear the problem.

•

MegaStar 155 M:N

• • • •

89

Visual Alarm Indications The Alarm Display card provides a visual indication of summary alarms with equipment covers installed. It also provides site controls and alarms, as well as FarScan connectivity.

Turning off the Audible Alarm If your system is configured to provide an audible tone when the system is in alarm, press the alarm cutoff (ACO) switch, located on each Alarm Display card to quiet it. The audible signal will reactivate when a new and different alarm condition is detected.

FarScan FarScan, available from Harris on a desktop or laptop PC, is a convenient network supervision system that serves as an alarm and control master for the MegaStar radio. Extensive diagnostic capabilities are provided through FarScan’s convenient menu-driven procedures. To obtain the full benefits of FarScan’s network monitoring capabilities, you must set it up to provide continuous polling. Refer to the FarScan instruction manual for more information on how to use the program.

If the fault LED is lit on a unit, use FarScan to interrogate the equipment and determine the nature of the alarm.

• •

90

• • •


MegaStar Inventory Program The MegaStar Inventory program may be used to l ocate a unit(s) that are not communicating over the radio internal channel. Failure to communicate will cause alarm reporting errors.

Adjustments and Tuning Use a frequency counter to determine whether any frequency adjustments need to be made (see page 74). If a major adjustment appears necessary, check the measuring technique and test equipment settings for accuracy.

Replacing Faulty Units To replace a faulty unit, refer to Chapter 8, “Repair and Replacement.”

•

MegaStar 155 M:N

• • • •

91

Equipment Required Software • FarScan • MegaStar Inventory Program

Test Equipment The following test equipment may be needed for measurements and adjustments that cannot be made using FarScan. (For detailed equipment specifications, refer to page 29.)

• Digital Multimeter • Power Meter • Frequency Counter Allow the frequency counter to warm up for 30 minutes before making any measurements.

Alignment Equipment The MegaStar Radio Alignment Kit is needed when changing crystals in the phase lock source. It is available from Harris.

• •

92

• • •


SPU Troubleshooting Trouble in the SPU is indicated by the presence of a lighted minor, major or critical LED on the Alarm Display unit. Remove the SPU front cover to determine which card is at fault (its fault LED will be lit as well).

If there is a problem with the Alarm Display unit, its fault LED will be illuminated. Troubleshooting consists of isolating the failed unit or units with a lighted fault LED and replacing them with spares. If replacing the faulty unit solves the problem, return the failed unit to the factory for repair.

Always reinstall the original unit if the spare does not clear the fault. If a lighted fault LED is not visible, check the FarScan status report for any error messages. If no problems are indicated, isolate the problem card by replacing each card with a spare until the faulty one is located. Such troubleshooting by replacement should not begin until all other possible trouble sources are eliminated. The following chart describes the procedure for troubleshooting the SPU shelf. Alarm Indication

Probable Cause and Corrective Action

Fault LED is lit continuously Use FarScan to determine what is causing the alarm. on any unit. Fault LED flashes on and off The input alarm circuit has detected a signal loss at its once per second. input. Restore the missing signal by replacing a removed card or fiber optic cable.

•

MegaStar 155 M:N

• • • •

93

RFU Troubleshooting Trouble in the RFU is indicated by the presence of a lighted fault LED on one or more units. Troubleshooting consists of isolating the failed unit(s) through the fault LEDs, through the FarScan status report, or by tracing the signal flow through the assembly and ascertaining the correct performance of each unit in the assembly. The failed unit(s) should then be returned to the factory for repair. When symptoms permit unambiguous fault isolation, the fault LED on the failed unit will illuminate steadily. Fault LEDs on other units may flash on and off, indicating a problem with the input signal. If no fault LEDs are lit, or if the unit does not have one, replace each unit with a spare until the faulty one is located. Troubleshooting by replacement should not begin until all other possible trouble sources are eliminated.

Always reinstall the original unit if the spare does not clear the fault. The following chart describes the RFU troubleshooting procedure. Alarm Indication

Probable Cause and Corrective Action

Fault LED is lit on any unit

Use FarScan to determine what is causing the alarm.

Fault LED flashes on and off The input alarm circuit has detected a signal loss at its once per second. input. Restore the missing signal by replacing a removed card or RF/IF cable.

• •

94

• • •


Chapter 8 Repair and Replacement


This section covers repair and replacement procedures for the MegaStar SPU and RFU subassemblies. When you have located a failed unit, refer to the correct procedure on one of the following pages to replace it.

Ground yourself properly using an antistatic wrist strap or other grounding device before handling the sensitive units.

Do not touch the edge connectors with your fingers.

Return any defective unit in an anti-static bag.

•

MegaStar 155 M:N

• • • •

95

In-Service Replacement If the unit being replaced is nonredundant and common to normal and protection paths, first transfer the affected traffic to alternate channels.

Any function that causes a break in the RF signal, such as removing the Modulator card or Power Amplifier RF IN cable, may cause errors in the corresponding local receiver if it is online.

• •

96

• • •


Replacing Units If you need to replace a failed unit with a spare, be absolutely sure that they are identical by checking the part numbers on each unit. Also, make sure that switches, straps, and/or headers on the replacement unit match those of the old unit. For detailed information on Harris’s part numbering scheme, refer to page 157.

Returning Failed Equipment Failed units should be returned to Harris for repair. Refer to page 161 for instructions on proper material return procedures.

Failure to comply with our material return procedure can delay the repair process.

•

MegaStar 155 M:N

• • • •

97

Signal Processing Units Voice Frequency Orderwire LOCATION ON SPU SHELF

FAULT LED

TELEPHONE PORT

4W PORTS CONNECTOR 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 18 or

EXTRACTOR

• •

98

• • •


Tools Required • Small slotted screwdriver Remove the VF Orderwire 1. Disconnect the telephone handset cable from the card. 2. Remove the cable from the 4W PORTS connector. Use the screwdriver to loosen the two connecting screws. 3. Disengage the card extractor. 4. Carefully pull out the card and set it aside.

Install the New VF Orderwire 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card.

•

MegaStar 155 M:N

• • • •

99

Data Orderwire LOCATION ON SPU SHELF

FAULT LED

RS 232 CONNECTOR

1 or

EXTRACTOR

• •

100

• • •


2 3 4 5 6 7 8 9 10 11 121314 15 16 17 18

Tools Required • Small slotted screwdriver Remove the Data Orderwire 1. Disconnect the cable from the RS 232 port. Use the screwdriver to loosen the two connecting screws. 2. Disengage the card extractor. 3. Carefully pull out the card and set it aside.

Install the New Data Orderwire 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card.

•

MegaStar 155 M:N

• • • •

101

Overhead Processor LOCATION ON SPU SHELF

FAULT LED

MUTE C ACTIVE LED MUTE MAIN ACTIVE LED

EXTRACTOR

• •

102

• • •


1

2 3 4 5 6 7 8 9 10 11 121314 15 16 17 18

Remove the Overhead Processor 1. Disengage the card extractor. 2. Carefully pull out the card and set it aside.

Install the New Overhead Processor 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card.

•

MegaStar 155 M:N

• • • •

103

Power Supply EXTRACTOR

LOCATION ON SPU SHELF

FAULT LED ACTIVE LED

TEST POINTS

FUSE

POWER SWITCH

POWER CONNECTOR

EXTRACTOR

• •

104

• • •


1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 18

If the fault LED on the Power Supply (DC-DC Converter) is lit, first check the Power Supply fuse in the Fuse Panel. If it has blown, replace it with a new one of the correct value for the power supply voltage. If the fuse blows again, replace the power supply. Remove the Power Supply 1. If equipped, disengage the half-height cards (Data Orderwire, VF Orderwire and Overhead Processor) from the backplane connectors on the SPU shelf. 2. Turn off the power switch on the Power Supply. 3. Remove the Power Supply fuse from the Fuse Panel. 4. Disconnect the 2-pin power cable. 5. Disengage the upper and lower card extractors. 6. Carefully pull out the card and set it aside.

Install the New Power Supply 1. Reverse the removal procedure to install the new card.

•

MegaStar 155 M:N

• • • •

105

Demodulator LOCATION ON SPU SHELF EXTRACTOR


1 2 3 4 5 6 7 8 9 10 11 121314 15 16 17 18

IF IN CONNECTOR

EXTRACTOR

• •

106

• • •


Tools Required • SMA wrench (5/16”) • Torque wrench (8-9 inch-lbs) Remove the Demodulator 1. Remove the IF IN cable using an SMA wrench to loosen the nut. 2. Disengage the upper and lower card extractors. 3. Carefully pull out the card and set it aside.

Install the New Demodulator 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card. 3. Use the torque wrench to secure the IF IN SMA connector.

•

MegaStar 155 M:N

• • • •

107

Decoder LOCATION ON SPU SHELF EXTRACTOR


EQM MON PORT

EXTRACTOR

• •

108

• • •


1 2 3 4 5 6 7 8 9 10 11 121314 15 16 17 18

Remove the Decoder 1. Move traffic to a protection channel. 2. If equipped, disengage the half-height cards (Data Orderwire, VF Orderwire and Overhead Processor) from the backplane connectors on the SPU shelf. 3. Disengage the upper and lower card extractors. 4. Carefully pull out the card and set it aside.

Install the New Decoder 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card.

•

MegaStar 155 M:N

• • • •

109

Modulator LOCATION ON SPU SHELF EXTRACTOR


1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 18

IF OUT CONNECTOR

EXTRACTOR

• •

110

• • •


Tools Required • SMA wrench (5/16") • Torque wrench (8-9 inch-lbs) Remove the Modulator Removing the Modulator will cause errors in the corresponding local receiver. 1. Move traffic to a protection channel. 2. Use the SMA wrench to loosen the nut fastening the IF OUT cable and remove the cable. 3. Disengage the upper and lower card extractors. 4. Carefully pull out the card and set it aside.

Install the New Modulator 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card. 3. Use the torque wrench to secure the IF IN SMA connector.

•

MegaStar 155 M:N

• • • •

111

IF Combiner (if equipped) LOCATION ON SPU SHELF EXTRACTOR

FAULT LED DIVERSITY ACTIVE LED MAIN ACTIVE LED 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 18 DELAY TEST POINT DIVERSITY IF IN

IF OUT CONNECTOR

MAIN IF IN CONNECTOR

EXTRACTOR

• •

112

• • •


Tools Required • SMA wrench (5/16") • Torque wrench (8-9 inch-lbs) Remove the IF Combiner 1. Move traffic to a protection channel. 2. Use the SMA wrench to loosen the DIV IF IN cable and disconnect it. 3. Use the SMA wrench to loosen the IF OUT cable and disconnect it. 4. Use the SMA wrench to loosen the main IF IN cable and disconnect it. 5. Disengage the upper and lower card extractors. 6. Carefully pull out the card and set it aside.

Install the New IF Combiner 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card. 3. Use the torque wrench (8-9 inch-lbs) to fasten the cables.

•

MegaStar 155 M:N

• • • •

113

Switch Interface LOCATION ON SPU SHELF EXTRACTOR FAULT LED ACTIVE LED

1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 18

SP1 CONNECTOR

SP2 CONNECTOR

HS1 CONNECTOR

HS2 CONNECTOR

EXTRACTOR

• •

114

• • •


Remove the Switch Interface 1. Move traffic to a protection channel. 2. Disconnect all cables from the unit’s front panel connectors. 3. Disengage the upper and lower card extractors. 4. Carefully pull out the card and set it aside.

Install the New Switch Interface 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card. 3. Tighten the connector screws.

•

MegaStar 155 M:N

• • • •

115

3xDS3 Tributary Interface LOCATION ON SPU SHELF EXTRACTOR

FAULT LED TX LED RX LED 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 18

DS1 Wayside OUT and IN

DS3 Inputs and Outputs

EXTRACTOR

• •

116

• • •


Remove the 3xDS3 Tributary Interface Before you begin this procedure, label the cables before you disconnect them to facilitate replacement. 1. Disconnect all cables from the unit’s front panel connectors. 2. Disengage the upper and lower card extractors. 3. Carefully pull out the card and set it aside.

Install the New 3xDS3 Tributary Interface 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card.

•

MegaStar 155 M:N

• • • •

117

Tributary Interface LOCATION ON SPU SHELF

EXTRACTOR FAULT LED ACTIVE LED

1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 18

• •

118

• • •


Remove the Tributary Interface 1. Disconnect each connector.

If you are disconnecting optical cables, hold the connector so that it points away from your face. Do not look at the optical connectors to avoid laser injury to your eyes. 2. Disengage the upper and lower card extractors. 3. Carefully pull out the card and set it aside.

Install the New Tributary Interface 1. Compare the part number and option of the card you removed to the one you are replacing it with to be sure it is an equivalent or later model. 2. Reverse the removal procedure to install the new card.

•

MegaStar 155 M:N

• • • •

119

SPU Controller LOCATION ON SPU SHELF EXTRACTOR LEARN BUTTON FAULT LED

RFU 1

RFU 2

PARALLEL

AUX

SPUR

CIT

MEGASCAN

EXTRACTOR

• •

120

• • •


1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 18

Tools Required • Small slotted screwdriver • Small Phillips screwdriver Remove the SPU Controller 1. Remove the cables connected to the Controller. (Make a note of how each cable is labeled for correct reinstallation.) 2. Disengage the upper and lower card extractors. 3. Carefully pull out the card and set it aside.

•

MegaStar 155 M:N

• • • •

121

Install the New SPU Controller 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Compare the switch settings and straps to make sure they are identical. (Refer to page 31.) 3. Connect the RFU cables to the controller. 4. Plug the card into its slot and engage the card extractors. 5. Connect any remaining cables to the SPU Controller. 6. Verify that the correct version of SPU software is loaded. Refer to page 73 for details.) 7. Verify the local address. Send FarScan Command 008. Change it if necessary. 8. Verify the SPU Runtime Code using FarScan Command 10, Alter.

If the Runtime Code is not the same as what was installed in the previous SPU Controller, perform the SPU download procedure, describe in the MegaStar Software Utilities Manual.

• •

122

• • •


Reprogram the VF Orderwire Address You will need to reprogram the address for the VF Orderwire card (page 37) when the SPU Controller is replaced. The following steps are carried out using FarScan. Refer to the FarScan instruction manual if necessary. 1. Start FarScan and turn the system connection online. 2. Make sure the correct target site is selected. 3. From the FarScan Manual Commands menu, select command 257 (for VF Orderwire in slot 1) or command 258 (for VF Ord erwire in slot 2). Type a to alter the command. 4. Highlight the first digit of the address and press the End key. 5. Highlight the last two digits of the address and press End. The “change address” command will be sent and the address will be changed.

•

MegaStar 155 M:N

• • • •

123

Alarm Display LOCATION ON SPU SHELF EXTRACTOR FAULT LED

SYSTEM STATUS LIGHTS

ALARM CUTOFF SWITCH

AGC TEST POINTS

FARSCAN INTERFACE (25-PIN FEMALE)

CUSTOMER INTERFACE (44-PIN FEMALE)

EXTRACTOR

• •

124

• • •


1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 18

Tools Required • Small slotted screwdriver • Small Phillips screwdriver Remove the Alarm Display 1. Detach any connecting cables from the card. 2. Disengage the upper and lower card extractors. 3. Carefully pull out the card and set it aside.

Install the New Alarm Display 1. Compare the part number of the card you removed to the one you are replacing it with to be sure they are identical. 2. Reverse the removal procedure to install the new card.

•

MegaStar 155 M:N

• • • •

125

Radio Frequency Units Power Amplifier

RF OUT

RF IN

POWER SWITCH


POWER CONNECTOR

• •

126

• • •


Tools Required • SMA wrench (5/16") • Torque wrench (8-9 inch-lbs) Remove the Power Amplifier 1. Move traffic to a protection channel.

Removing the Power Amplifier will drop traffic in both directions because its power supply also provides power for the receiver. 2. If ATPC is enabled, lock ATPC to low power at the far-end site. If the radio is not locked to low power, the far-end transmitter will automatically be set to high power.

3. Turn off the power switch on the faulty Power Amplifier. 4. Remove the associated fuse at the Fuse Panel (to prevent arcing). 5. Disconnect the 4-pin power cable from the Power Amplifier. 6. Use the SMA wrench to remove the cables connected to the RF IN and RF O UT jacks on the Power Amplifier.

7. Loosen the two knurled thumbscrews on the locking bar at the front of the shelf. Slide the locking bar over so that you can pull out the unit.

8. Use the handle to pull the Power Amplifier from the IF/RF shelf.

Install the New Power Amplifier 1. Compare the part number on the unit you removed to the one you are replacing it with to be sure they are identical.

If a later model unit is supplied, make sure it has the same six-digit base number and option as the one it is replacing. 2. Install the new Power Amplifier by reversing the removal procedure. 3. Use the torque wrench (8-9 inch-lbs) to tighten the SMA cable connections. 4. Restore traffic from the protection channel. 5. Verify that the correct version of RFU software is loaded. (Refer to page 73 for details).

6. Check the operation of the new Power Amp lifier assembly by performing the verification procedure given in Chapter 4.

•

MegaStar 155 M:N

• • • •

127

Receiver RF IN CONNECTOR

LOW NOISE CONVERTER (LNC)

LNC FAULT LED

RECEIVER ACTIVE LED PLS FAULT LED PHASE LOCK SOURCE (PLS)

CRYSTAL ADJUSTMENT CRYSTAL MONITOR

IF AMP FAULT LED

IF AMPLIFIER IF OUT CONNECTOR

• •

128

• • •


Tools Required • SMA wrench (5/16") • Torque wrench (8-9 inch-lbs) Remove the Receiver Complete reciever assemblies are not supplied as spares. Refer to the instructions later in this chapter for replacing individual components. 1. Move traffic to a protection channel. 2. Locate the Power Amplifier that supplies power to the Receiver you will remove. 3. Turn off the power switch on the Power Amplifier. 4. Disconnect the RF IN cable from the LNC (top of the assembly) and rotate it out of the way. 5. Disconnect the cable from the IF OUT connector on the IF Amplifier (bottom of the assembly). 6. Loosen the thumb screws on the horizontal locking bar and slide it to the left. 7. Carefully pull the Receiver assembly out of the radio. 8. Make any modifications necessary according to the following instructions:

LNC - page 135 IF Amplifier - page 137 PLS - page 138

Install the Receiver 1. Plug the Receiver into the radio. 2. Connect the cable to the IF OUT connector on the IF Amplifier (bottom of the assembly). 3. Connect the RF IN cable to the LNC (top o f the assembly). 4. Use the torque wrench to tighten the nuts on the RF and IF cables. 5. Slide the locking bar to the right and tighten the two thumb screws. 6. Turn on the power switch on the Power Amplifier. 7. Restore traffic from the protection channel. 8. Check the operation of the new unit by performing the verification procedure given in Chapter 4. •

MegaStar 155 M:N

• • • •

129

Transmitter

RF OUT PORT

UP CONVERTER

IF IN PORT

ACTIVE LED TRANSMITTER FAULT LED PHASE LOCK SOURCE (PLS)

CRYSTAL ADJUSTMENT CRYSTAL MONITOR

Tools Required • SMA wrench (5/16") • Torque wrench (8-9 inch-lbs)

• •

130

• • •


Remove the Transmitter Complete transmitter assemblies are not supplied as spares. Refer to the instructions later in this chapter for replacing individual components. 1. Move traffic to a protection channel. 2. Locate the Power Amplifier that supplies power to the Transmitter you will remove. 3. Turn off the power switch on the Power Amplifier. 4. Disconnect the cable from the RF port on the upconverter. 5. Disconnect the other end of the cable from the RF IN port o n the Filter/Switch assembly. Set the cable aside. 6. Disconnect the cable from the IF port on the upconverter and move it aside. 7. Loosen the two thumb screws on the locking bar and slide it to the left. 8. Use the handle to pull the transmitter from the radio. Make sure it doesn’t catch on other cables. 9. Carefully pull the Transmitter assembly from the shelf. 10. If you need to replace the PLS, go to page 138.

Install the Transmitter 1. Plug the transmitter in the radio. 2. Connect one end of the RF cable to the RF IN port on the Filter/Switch assembly. 3. Connect the other end of the cable to the RF port on the upconverter. 4. Connect the cable to the IF port on the upconverter. 5. Slide the locking bar to the right and tighten the two thumb screws. 6. Turn on the power switch on the Power Amplifier. 7. Restore traffic from the protection channel. 8. Check the operation of the new unit by performing the verification procedure given in Chapter 4.

•

MegaStar 155 M:N

• • • •

131

Filter/Switch Assembly

RF OUT 1

RF IN 1

RF IN 2

RFU 1 (FARSCAN)

RFU 2 (FARSCAN)

RF OUT 2

The Filter/Switch Assembly is not sold as a spare unit.

• •

132

• • •


Tools Required • SMA wrench (5/16") • Torque wrench (8-9 inch-lbs) Remove the Filter/Switch Assembly Traffic will be dropped during this procedure when the filter/switch assembly is removed. 1. Move traffic to a protection channel. 2. Turn off the power switch on both PAs. 3. Disconnect the cable from the RF OUT 1 port on the Filter/Switch assembly and move it aside. 4. Disconnect the cable from the RF OUT 2 port. Swing the cable out of the way. 5. Disconnect the cable(s) from the RF ports on the transmitter upconverter(s). 6. Disconnect the other end from the RF IN port(s). Set the cable(s) aside. 7. Disconnect the RFU 1 and RFU 2 cables. 8. Carefully pull the Transmit Filter/Switch assembly from the shelf.

•

MegaStar 155 M:N

• • • •

133

Install the Filter/Switch Assembly 1. Compare the part number on the unit you removed t o the one you are replacing it with to be sure they are identical. 2. If necessary, program the unit using the RF Alignment Kit. If the IDEPROM is not programmed correctly (frequency, branching gain), errors will appear in the presented AGC levels. The RF Alignment Fixture Kit (p/n 098-110451-001) is available from Harris.

If a later model unit is supplied, make sure the unit has the same six-digit base number and option as the one it is replacing. 3. Slide the replacement Filter/Switch assembly into place in the rack. 4. Reverse the removal procedure. 5. Check the operation of the new unit by performing the verification procedure given in Chapter 4.

• •

134

• • •


Low Noise Converter Tools Required • Allen wrench (3/32") • SMA wrench (5/16") • SMA torque wrench Remove the Low Noise Converter 1. Remove the Receiver from the radio according to the instructions on page 128. 2. Lay the Receiver component-side-up on a flat, static-free work area. 3. Detach the ribbon cable from the LNC connector on the Distribution Card. (Remove the cable using its connector; do no t pull on the cable to remove it.) 4. Use the SMA wrench to carefully remove the cables connected to the “LO IN” and “IF OUT” connectors. 5. Use the Allen wrench to loosen the four screws at each corner of the LNC. 6. Remove the LNC and set it aside to return to Harris.

Install the New Low Noise Converter 1. Compare the part number on the unit you removed to the one you are replacing it with to be sure they are identical. 2. Put the new LNC on the Receiver plate. Use the Allen wrench to tighten the four screws at each corner. 3. Reconnect the “IF OUT” cable to the LNC. (It is the black, flexible cable.) Use the SMA torque wrench to gently tighten the connection. 4. Reconnect the rigid “LO IN” cable to the LNC. Use the SMA torque wrench to gently tighten the connection.

•

MegaStar 155 M:N

• • • •

135

5. Plug the ribbon cable into the LNC connector on the Distribution Card. Make sure pin 1 of the ribbon cable (red stripe) is aligned with pin 1 of the connector. 6. Replace the Receiver assembly in the radio and reconnect the cables according to the instructions on page 128.

• •

136

• • •


IF Filter/Amplifier Tools Required • Allen wrench (3/32") • SMA wrench (5/16”) • SMA torque wrench Remove the IF Filter/Amplifier 1. Remove the Receiver from the radio according to the instructions on page 129. 2. Lay the Receiver component-side-up on a flat, static-free work area. 3. Disconnect the ribbon cable from the IF Filter/Amp connector on the Distribution Card. 4. Disconnect the SMA cable from the IF Filter/Amplifier input. 5. Use the allen wrench to loosen the four screws, one at each corner of the IF Filter/Amplifier. 6. Remove the IF Filter/Amplifier and set it aside to return to Harris Farinon.

Install the IF Filter/Amplifier 1. Compare the part number on the unit you removed t o the one you are replacing it with to be sure they are identical. 2. Place the new IF Filter/Amplifier on the Receiver Assembly plate. 3. With the Allen wrench, gently tighten the four screws at t he corners of the IF Filter/Amplifier. 4. Connect the SMA cable to the IF Filter/Amplifier input. 5. Plug the ribbon cable into the IF Filter/Amp connector on the Distribution Card. Make sure pin 1 of the ribbon (red stripe) is aligned with pin 1 of the card’s connector. 6. Replace the Receiver assembly in the radio and reconnect the cables according to the instructions on page 129.

•

MegaStar 155 M:N

• • • •

137

Phase Lock Source Tools Required • Phillips screwdriver • SMA wrench (5/16") • SMA torque wrench Remove the Phase Lock Source 1. Remove the Receiver (refer to page 129) or Transmitter (refer to page 131) from the radio. 2. Lay the assembly component-side-up on a f lat, static-free work area. 3. Detach the ribbon cable from the PLS connector (P2) on the Distribution Card. (Remove the cable using its connector; do not pull on the cable itself.) 4. Use the SMA wrench to disconnect the circulator from the “RF OUT” connection on the PLS. 5. Turn the assembly upright. 6. Hold onto the card with your left hand. Grasp the plate and the PLS to support it. 7. With your right hand, remove the four Phillips-head screws from the opposite side of the plate. (Be careful not to let the PLS fall.) 8. Lay the assembly back down on the work surface. 9. Lift off the PLS and set it aside.

Install the New Phase Lock Source 1. Compare the part number on the unit you removed to the one you are replacing it with to be sure they are identical. Also make sure the new PLS is the correct frequency. 2. Place the new PLS on the assembly plate. 3. Supporting the PLS and the plate, turn the assembly upright. • •

138

• • •


4. Insert and gently tighten the four Phillips-head screws. 5. Lay the assembly back down on the work surface. 6. Connect the Circulator to the “RF OUT” connector on the PLS. Use the SMA wrench to gently tighten the connection. 7. Plug the ribbon cable into the PLS connector on the Distribution Card. Make sure pin 1 of the ribbon (red stripe) is aligned with pin 1 of the card’s connector. 8. Replace the assembly in the radio and reconnect the cables according to the instructions on page 129 (Receiver) or page 131 (Transmitter).

•

MegaStar 155 M:N

• • • •

139

PLS Crystal Tools Required • Antistatic workstation • Grounding wrist or heel strap • Standard X-Acto knife (do not use a pocket knife) • Cotton swabs • XceLite sockethead screwdriver (P22, size 5/64") • White thermal compound, Wakefield part number 120-8 Removing the Crystal Please observe precautions for handling electrostatic- sensitive devices. 1. Move traffic to a protection channel. 2. If replacing the crystal in a Transmitter PLS, remove the Transmitter using the procedure on page 131.

If replacing the crystal in a Receiver PLS, perform the procedure fo r removing the Receiver on page 129. 3. Place the Transmitter or Receiver on a clean, static-free workspace.

• •

140

• • •


4. Disconnect the ribbon cable from plug P3 on the PLS. 5. Disconnect the semi-rigid cable from the PLS isolator. Use the SMA wrench to loosen the connection.

6. Disconnect the other end of the semi-rigid cable from the upconverter. Set it aside.

•

MegaStar 155 M:N

• • • •

141

7. Unplug the PLS ribbon cable from connector P2 on the distribution card.

8. Remove the 4 screws fastening the PLS to the assembly plate.

9. Remove the two screws fastening the P3 ribbon cable strain relief. Set them and the cable strain relief aside.

• •

142

• • •


10. Disconnect the ribbon cable from the PLS and set it aside.

11. Remove the two spacer screws from each side of the PLS cable connector and set them aside.

•

MegaStar 155 M:N

• • • •

143

12. Using a 5/64 socket head screwdriver, remove the 10 screws that secure the PLS cover plate. Set the screws aside.

13. Using the X-Acto knife, cut the warranty stickers at the adjoining points between the PLS cover plate and the housing. Separate the cover plate from the housing and set it aside.

14. Lift off the PLS cover and set it aside.

• •

144

• • •


15. Pull the crystal oven straight up and out of its socket in the PLS and set it aside. The crystal is now exposed.

16. Use a cotton swab to wipe the excess thermal compound from the crystal.

17. Pull the crystal straight up and out of its socket.

•

MegaStar 155 M:N

• • • •

145

18. Remove the washer that separates the crystal from the board and set it aside.

Installing the New Crystal 1. Check the new crystal. Make sure it has the same frequency m arkings as the original crystal. The length of its leads should be 0.15” long, ±0.01”; the leads should be straight. 2. Position the foam washer (saved in step 18) over the crystal leads.

• •

146

• • •


3. Align the crystal leads with the three holes on the PLS board and insert the crystal. Be careful not to bend the leads. Push straight down until the crystal is firmly seated.

4. Using a cotton swab, apply a thin layer of thermal compound around the outside of the crystal and to the inside of the crystal oven.

5. Use a cotton swab to apply (or reapply) a thin layer of thermal compound to the inside of the crystal oven (set aside in step 15 of the previous procedure).

•

MegaStar 155 M:N

• • • •

147

6. Align the oven leads with the sockets on the board and plug it in. Push it straight down until the oven is firmly seated against the PLS circuit board.

7. Reinstall the cover plate on the PLS and secure it with the 10 screws (removed in step 9 of the previous procedure). If a torque gauge is available, set the torque to 3 to 4 ounces per inch.

• •

148

• • •


8. Reinstall the spacer screws removed in step 8 of the previous procedure.

9. Reconnect the PLS ribbon cable (disconnected in step 7 of the previous procedure) to connector P3 on the PLS.

10. If the cable relief was removed in step 6 of the previous procedure, reinstall it with the cable underneath. 11. Continue with “Test the Phase Lock Source” on page 150.

•

MegaStar 155 M:N

• • • •

149

Test the Phase Lock Source Tools Required • Frequency counter, HP-5351A or equivalent • Jeweler’s screwdriver, 0.15" wide blade • Dual power supply unit, HP-6236B or equivalent • Microwave attenuator, 10-20 dB, SMA, 50 ohms • Digital voltmeter (DVM) • Oscilloscope (optional) • Miscellaneous test leads, clip leads, and coaxial cables (SMA male on one end for PLS connection; 50-ohm impedance)

• PLS setup board, Harris part number 021-110191-001 • Antistatic workstation (mat and wrist strap, properly grounded)

• •

150

• • •


Procedure 1. Set output voltages on the dual power supply to +10V, ±0.1V and -12V, ±0.2V. 2. Turn off the dual power supply. CAUTION: In the next step, make sure the power supply outputs are connected correctly to the PLS setup board.

3. Using clip leads, connect the dual power supply outputs to the +10, -12V, and GND terminals, respectively. 4. Connect the microwave attenuator to the RF OUT port on the PLS unit.

5. Connect the DVM and oscilloscope (optional) between the Phase Voltage test point and Ground on the PLS setup board. 6. Using a 50-ohm cable, connect the frequency counter to the REF MON port (also labeled J2) on the PLS.

7. Disconnect the PLS ribbon cable (P2) from the transm itter or receiver and connect it to the appropriate jack on the PLS setup board.

•

MegaStar 155 M:N

• • • •

151

8. Turn on the power supply unit. Allow it to stabilize for 10 minutes. Requirement: Current on the +10V line should be about 150 mA. Current on the -12V line should start at 200 to 500 mA and drop to less than 100 mA after a few minutes of warm-up.

9. Unscrew the protective cap over FREQ ADJ and set it aside.

10. Use the jeweller’s screwdriver, adjust the PLS frequency (REF ADJ or XTAL ADJ) until the frequency counter indicates the desired crystal frequency, ±10 Hz.

11. (Optional) Observe the waveform on the oscilloscope. It should be an approximate square wave, indicating that the loop is in the search mode. The red LED on the PLS front panel should light.

• •

152

• • •


12. Using the jeweler’s screwdriver, adjust the VCO tuner (FREQ ADJ) counterclockwise until the tuner top is flush with its bushing, then slowly adjust it clockwise until the unit stops sweeping (no square wave is displayed on the oscilloscope) and the DC voltage range is between 3 and 7 volts DC. CAUTION: Be careful when adjusting the VCO tuner in the following steps. If the tuner goes too deep, it may damage interior VCO parts.

13. Slowly adjust the VCO tuner until the DVM indicates 5.0V, ±0.1V. 14. Connect a microwave frequency counter to the microwave attenuator (attached to the RF OUT port in step 4). You will need to switch the input so the counter reads the correct frequency. 15. Measure the microwave output frequency to verify that it is correct. Requirement: The frequency counter should indicate the correct microwave output frequency. It is possible for the output frequency to be about 106 MHz too low. In this case, do the following: a. Slowly turn the VCO tuner clockwise until the unit locks to the correct frequency. b. Adjust the VCO tuner until the DVM indicates 5.0V, ±0.1V. The counter should now indicate the correct microwave output frequency.

16. Turn off the power supply and remove the PLS from test setup. 17. Reconnect P2 to the transmitter or receiver assem bly it was removed from in step 7.

•

MegaStar 155 M:N

• • • •

153

Reprogramming the PLS If the original crystal is being replaced with one of a different frequency, the PLS IDEEPROM must be reprogrammed using the “RF Alignment Fixture Kit.” If the IDEEPROM is not reprogrammed, errors will appear in the presented AGC level, as well as the transmit output power levels. The RF Alignment Fixture Kit (098-110451-001) and instructions for its use are available from Harris. Refer to page 159 for contact information.

• •

154

• • •


Fan

If you remove a fan from the MegaStar radio, it must be replaced with a fan or baffle. Otherwise, a fault alarm will occur. Do not operate the MegaStar radio with an inoperative fan for more than 72 hours.

•

MegaStar 155 M:N

• • • •

155

Remove the Fan 1. Loosen the two thumbscrews on the front of the fan assembly. 2. Pull the fan assembly out of the shelf.

Install the New Fan 1. Slide the new fan assembly into the vacant fan slot and p ush it firmly into place. 2. Gently tighten the two thumb screws on the front of the unit.

• •

156

• • •


Chapter 9 Spare Parts, Return, Repair


Whenever ordering a spare or replacement unit, make sure to specify the Harris part number and option. It is recommended that you order by specifying the part number and option appearing on the existing unit in your radio or by the part number and option specified on the bill of materials given in the Sales Order-specific binder. To order spare or replacement units, and return items for repair, fill out the “Return Material Authorization Form” (see Chapter 11).

Part Numbers The part numbers may appear in two ways. Each part numbering scheme is explained as follows.

12-digit part number located on the bill of materials:

XXX-XXXXXX-XXX Prefix Model

Base

Suffix

Prefix

The first two digits of the part number indicate the type of unit or level of assembly.

Model

The third digit of the part number is the unit or assembly model number.

•

MegaStar 155 M:N

•

157

• • •

Base

The 6-digit base number is a consecutive numerical set used for indicating a specific unit or assembly.

Suffix

The 3-digit suffix indicates the unit or assembly option. For example, 003 indicates unit or assembly is option 3.

10-digit part number marked on the equipment:

SD-XXXXXX-MX Designation

Base

Model

Designation

The designation is always “SD”.

Base

The 6-digit base number indicates a specific unit or assembly.

Model #

The model number indicates the unit or assembly model number.

A separate, three-digit option number may also appear on the equipment, such as “003”. The part number on the replacement unit must have the same base digits and option number as the one you removed, however, the model number can be higher. For example, a failed unit with no Model indication in its part number is an “M1” model. It can be replaced by an “M2” Model. Or, a unit with “M2” in its part number can be replaced by an “M3” model. Units cannot be replaced with ones that have lower model numbers. Refer to the original equipment list to find the correct replacement parts for the specific unit.

• •

158

• • •


Spare Products Support Center Spare radio assemblies may be ordered from the Spare Products Support Center (SPSC). Refer to page 11 for telephone numbers. Harris MCD Spare Products Support Center 3 Hotel-de-Ville Dollard-des-Ormeaux Quebec, Canada H9B 3G4

Repair and Return If you require module repair service, call the Customer Service Center and first request a Return Material Authorization (RMA) number. This request ensures that the repair will be done in a timely manner and prevents any delays caused by incomplete or missing information. Please provide the following information when you call (or fax):

• Your name, company, and telephone number (fax number) • Part Number and Serial Number (see label on the back of the shelf)

• • • •

Purchase Order Number Billing and shipping addresses Any special return packing or shipping instructions Any special customs clearance information required

Ordering Parts or Spares Harris equipment is designed to be repaired by replacement at the unit level with readily available spares. For this reason, parts lists are not furnished with an order, nor are they recommended as a requirement.

•

MegaStar 155 M:N

• • • •

159

Any order above the component level must be for a complete unit (a unit marked with a six-digit SD number), or for an assembly that includes one or more units. Make all inquiries for spare units to the Spare Products Support Center (see page 11).

• •

160

• • •


Repair and Return Harris repairs all its manufactured products as well as coordinates repairs on vendor items that are part of its systems. The standard repair turnaround time for current models of some products is 5 working days upon receipt of the defective parts. Repair turnaround time for other products is 15 working days. Discontinued items repair turnaround is subject to the availability of spares. Emergency repair is available with a 24-hour turnaround time for current production models of some products and 48 hours for other products. Turnaround time for Manufacturing Discontinued items is subject to the nature of the problems. Emergency repairs are billed at actual repair price (zero for warranty units) plus some surcharge per unit. Our normal shipping time is 4:00 P.M. (Central Time) unless special shipping instruction is requested. Repair charges and turnaround time for OEM (vendor) items are set by Harris suppliers. Our close working relationships with our suppliers assure us of the best repair prices and turnaround time. Repair charges are billed at supplier’s cost plus the necessary handling fee.

Module Exchange You may prefer to receive a replacement unit before you send your defective unit to us. Harris maintains an inventory of many different modules that can be shipped to you within 24 hours. Parts requiring retuning can be shipped within 48 hours. All exchanged units must be returned to us within 15 days to avoid getting invoiced for the difference between the exchange price and the list price.

•

MegaStar 155 M:N

• • • •

161

Evaluation Fee There is an evaluation charge per unit if no trouble is found and no repair is required.

Unrepairable Units Equipment which has been damaged due to customer negligence or which has parts removed will be repaired at the prevailing flat repair fee, or on a time-and-material basis, whichever is higher and regardless of the warranty status. Any equipment that is determined unrepairable will be returned to the customer. An evaluation fee will be assessed. This fee will be refunded if the customer purchases a replacement unit within 30 days.

Return Freight Harris prepays standard return freight back to our customers on warranty repairs. Return freight back to customers on billable repairs is invoiced to the customers. The customer pays for shipping units to Harris for both warranty and out-of-warranty repairs. Special shipping requests may be subject to additional charge. All shipments outside the continental USA and Canada are subject to additional handling charge per shipment. Please pack the unit carefully using static-free, sturdy packaging to prevent damage during transit.

• •

162

• • •


Return Material Authorization Before sending in your equipment for repair, first contact the Harris and request a return material authorization (RMA) number. Obtaining an RMA number insures you that the repairs will be done in a timely manner and prevents any delays due to incomplete information. Please provide the following information: 1. Your name, company, and telephone number. 2. Equipment type, part number, and sales order number (labeled on back of shelf). 3. Detailed description of the problem. 4. Purchase order number. 5. Billing and shipping addresses. 6. Any special return packing or shipping instructions. 7. If required, customs clearance information.

•

MegaStar 155 M:N

• • • •

163

Service Center Locations U.S.A. Harris MCD Attn: Customer Service, RMA #_ _ _ _ _ 5727 Farinon Drive San Antonio, TX 78249

Canada Harris MCD Attn: Customer Service, RMA #_ _ _ _ _ 3 Hotel-de-Ville Dollard-des-Ormeaux Quebec, Canada H9B 3G4

Refer to page 11 for telephone numbers.

• •

164

• • •


Chapter 10 Block Diagrams

••••••

This chapter contains block diagrams for the following configurations:

• MegaStar 0:1, single antenna • MegaStar 1:1 (0:2), single antenna • MegaStar 1:2 (0:3), single antenna • MegaStar 1:3 (0:4), single antenna • MegaStar 0:1, dual antenna • MegaStar 1:1 (0:2), dual antenna • MegaStar 1:2 (0:3), dual antenna • MegaStar 1:3 (0:4), dual antenna

•

MegaStar 155 M:N

•

165

• • •

Chapter 11 Forms


This section contains the following forms:

• Routine Maintenance Log Form • Return Material Authorization Form • Service Registration Form

•

MegaStar 155 M:N

•

173

• • •

MegaStar Routine Maintenance Log Form Rack # ________________________

Radio # _____________________________________________

Location

Radio Site # ___________________

Coordinating Site _____________________________________

Initial Measurement Date

What to Where Radio Measure to Measure Assy Tx Crystal frequency

MON jack on Transmit PLS in RFU

YEAR AFTER INITIAL INSTALLATION

Initial Level

1st YEAR

2nd YEAR 3rd YEAR

4th YEAR

5th YEAR

6th YEAR

7th YEAR

Tx A1 Tx A2 Tx B1 Tx B2

Rx Crystal frequency

MON jack on Receiver PLS in RFU

Rx A1 Rx A2 Rx B1 Rx B2

Transmitter Use FarScan. output power

Tx A1 Tx A2 Tx B1 Tx B2

SPU Controller S2 block switch settings.

1

0

0

1

0

1

0

1

0

1

0

1

0

1

0

1

1

1

1

1

1

1

1

1

2

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

3

3

4

4

4

4

4

4

4

4

4

5

5

5

5

5

5

5

5

5

6

6

6

6

6

6

6

6

6

7

7

7

7

7

7

7

7

7

8

8

8

8

8

8

8

8

8

DATE: ____________

SPU Controller S3 block switch settings.

1

1

1

DATE: ____________

0

1

DATE: ____________

0

1

DATE: ____________

0

1

DATE: ____________

0

1

DATE: ____________

0

1

DATE: ____________

0

1

DATE: ____________

0

1

DATE: ____________

0

1

1

1

1

1

1

1

1

1

1

2

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

3

3

4

4

4

4

4

4

4

4

4

5

5

5

5

5

5

5

5

5

6

6

6

6

6

6

6

6

6

7

7

7

7

7

7

7

7

7

8

8

8

8

8

8

8

8

8

DATE: ____________

DATE: ____________

DATE: ____________

DATE: ____________

DATE: ____________

DATE: ____________

DATE: ____________

DATE: ____________

0

DATE: ____________

NOTES:

Return Material Authorization (RMA) Form Service Locations:

USA 5727 Farinon Drive San Antonio, TX 78249, USA Tel: 1-800-227-8332 Fax: 1-514-421-3555

0

CANADA 3 Hotel de Ville Dollard-des-Ormeaux Quebec, Canada H9B 3G4 Tel: 1-800-465-4654 or 1-514-421-8333

The Customer Resource Center is available on the internet at http://www.microwave.harris.com/cservice/.

Company Name: _____________________________

Phone : ______________________________________

Requester’s Name:

Fax:

Return Material Authorization (RMA) Form Service Locations:

USA 5727 Farinon Drive San Antonio, TX 78249, USA Tel: 1-800-227-8332 Fax: 1-514-421-3555

CANADA 3 Hotel de Ville Dollard-des-Ormeaux Quebec, Canada H9B 3G4 Tel: 1-800-465-4654 or 1-514-421-8333

The Customer Resource Center is available on the internet at http://www.microwave.harris.com/cservice/.

Company Name: _____________________________

Phone : ______________________________________

Requester’s Name: __________________________

Fax: _________________________________________

Billing Address

Shipping Address

____________________________________________

_____________________________________________

____________________________________________

_____________________________________________

____________________________________________

_____________________________________________

Service Requested:

[ ] Repair

[ ] Exchange

Requested Repair Urgency:

[ ] Standard

[ ] Expedite

Warranty Status:

[ ] IN-WARR (Provide Sales Order No.) _______________________________ [ ] NON-WARR (Provide Purchase Order No.) _________________________

Requested Mode of Shipment:

[ ] Standard Service

[ ] 2nd Day Air

[ ] Overnight

NOTE : IN-WARRANTY UNITS are returned via STANDARD SERVICE only. Please provide COURIER ACC OUNT

NUMBER if faster delivery is required.________________________________________________________________ SD Number and Options ________________________

Part Description _____________________________

Problem/Service Required ________________________________

________________________

_____________________________

________________________________

________________________

_____________________________

________________________________

________________________

_____________________________

________________________________

Special Instructions _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________

Please do not write below this space Date Form Received: ____________________

Repair/Exchange Price:

Rec by: _________________________

Your RMA # is: ________

Item 1_______________________

Item 4 _______________________

Item 2_______________________

Item 5 _______________________

Item 3_______________________

Item 6 _______________________

Service Registration Form To facilitate warranty support and to receive product update information, please complete and return this form to our customer service department. By fax:

514-421-3555

By e-mail:

[email protected]

By mail:

Harris MCD Attn: Customer Resource Center 3 Hotel-de-Ville Dollard-des-Ormeaux Quebec, Canada H9B 3G4

The Customer Resource Center is available on the internet at http://www.microwave.harris.com/cservice/ .

Please print: Company Name: _____________________________________ Requester’s Name: ___________________________________ Title________________________________________________

Dept. _____________________________

Address City _________________________________________

State/Province_____________________________

ZIP/Postal Code ______________________________

Country__________________________________

Telephone Number ____________________________

Fax Number ______________________________

E-mail_______________________________________ Original Sales Order/PO Number ________________

(Sales order number is found in your documentation and on the equipment rack base plate.)

Chapter 12 Warranty Terms

••••••

Warranty and Product Support Warranty and product support information is provided at the time of purchase with the sales invoice and other sales documents. Read the warranty information on page 178 for the equipment or assembly before contacting Harris Customer Service.

•

MegaStar 155 M:N

•

177

• • •

Standard Product Warranty Terms Harris warrants that each product of its own manufacture shall, at the time of delivery and for a period of 24 months thereafter, be free from defects in materials and workmanship. For such products that are installed by Harris, this warranty shall extend for 18 months from date of installation, provided that the time from the date of delivery to the date of installation does not exceed 6 months. Such warranty shall not include any consumable components to which a specific manufacturer’s guarantee applies. If any Harris product shall prove to be defective in materials or workmanship under normal intended usage, operation, and maintenance during the applicable warranty period as determined by Harris after examination of the product claimed to be defective, then Harris shall repair or replace, at Harris’s sole option, such defective product, in accordance with procedures specified below, at its own expense, exclusive, however, of the cost of labor by the customer’s own employees, agents or contractors in identifying, removing or replacing the defective part(s) of the product. In composite equipment assemblies and systems, which include equipment of such other than Harris manufacture, Harris’s responsibility under this warranty provision for the non-Harris manufactured portion of the equipment shall be limited to the other equipment manufacturer’s standard warranty. Provided, however, that if the other manufacturer’s standard warranty period is of a shorter duration than the warranty period applicable to Harris’s manufactured equipment, then Harris shall extend additional coverage to such other equipment manufacturer’s warranty equal to the differential in time between the expiration of the other manufacturer’s warranty and the duration of Harris’s manufactured equipment warranty applicable to such order. Harris shall repair or replace, at Harris’s sole option, such other manufacturer’s defective part(s) within 60 days after receipt of such parts by Harris in accordance with the below specified procedures, at Harris’s own expense, exclusive, however, of cost of labor by the customer’s own employees, agents or contractors in identifying, removing or replacing the defective part(s) of the product.

• •

178

• • •


An authorization to return products to Harris under this warranty must be obtained from a Harris representative prior to making shipment to Harris’s plant, and all returns shall be shipped freight prepaid. Collect shipments will not be accepted, but Harris will prepay return freight charges on repaired and replaced products found to be actually defective. Liability of Harris for breach of any and all warranties hereunder is expressly limited to the repair or replacement of defective products as set forth in this section, and in no event shall Harris be liable for special, incidental or consequential damages by reason of any breach of warranty or defect in materials or workmanship. Harris shall not be responsible for repair or replacement of products that have been subjected to neglect, accident or improper use, or that have been altered by other than authorized Harris personnel. Any warranties or conditions made herein by Harris are exclusive, made in lieu of all other warranties or conditions, express or implied (except to title) including, but not limited to, any implied warranty or condition of merchantability, any implied warranty or condition of fitness for a particular purpose, or any warranty or condition arising out of performance or custom or usage of trade. Customer acknowledges any circumstances causing any such exclusive or limited remedy to fail of its essential purpose shall not affect any Harris warranty.

•

MegaStar 155 M:N

• • • •

179

Limitation of Damages Harris’ total and maximum liability under this agreement or in connection with the subject matter of this agreement or any transaction related to this agreement, shall be limited to one-half (1/2) of the aggregate amount paid to Harris, regardless of the basis for such liability. Customer acknowledges and agrees this section shall be enforceable in the event of any claim made in connection with this agreement, including, but not limited to, any claim for failure of delivery. In no event shall Harris be liable for any punitive, special, incidental, or consequential damages, including, but not limited to lost profits, opportunities or savings or for any loss of use of, or loss of data or information of any kind, however caused or for any full or partial loss of performance of any product, even if Harris has been advised of the possibility of such damages.

• •

180

• • •


Index

••••••

Numerics

business hours 11

24V DC, plus or minus 28 48V DC, plus or minus 28

C Canada e-mail 12

A

capacity, MegaStar 15

address e-mail 12 orderwire 37

channels, voice 15

address, to order spare parts 160

Class A computing device 25 limits 25

AGC voltage, viewing 40

combinations orderwire card 32

alarm cutoff switch 90 display card 90

command active or offline status 79 AGC monitor, radio 1 76 AGC monitor, radio 2 76 radio 1 AGC monitor 76 radio 1 RSL 40 radio 1 Tx Level 75 radio 2 AGC monitor 76 radio 2 RSL 40 radio 2 Tx Level 75 radio power setting 76 receive signal level radio 1 40 radio 2 40 transmit power 76 Tx Level, radio 1 75 Tx Level, radio 2 75 verify system code 73

aligning diversity antenna 41 alignment kit 154 antenna aligning diversity 41 audible alarm turning off 90

B backup, traffic 15 battery input 30 bill of materials 157

•

MegaStar 155 M:N

•

181

• • •

computer, FarScan 16

ESDs 24

connector BNC 74

evaluation fee 162 external connections 28

construction, network 15 control and monitoring 16 conversion kits 16 coordinating site 86

factory test data 86

counter, frequency 29

failed units 91

critical traffic 15

fan fault alarm 155

critical traffic, backup 15

far-end site 127

crystal frequency, PLS 74

FarScan 16, 72, 90 computer 16 software 29 status report 93

crystal, PLS replacing 140

D damage 27 database 16 DC power source 28 degradation, performance 86 digital multimeter 92 multimeter, specifications 29 diversity antenna, aligning 41 documents, related 22 dummy load 27

E electrostatic discharge 24 electrostatic-sensitive device handling requirements 24 e-mail Canada 12 USA 12 equipment address, setting 37 equipment photos 18 equipment storage 24 •

182

• • • •

Index

F

FarScan computer 29 fault alarm, fan 155 fault LED Alarm Display 93 FCC measurements 86 rules 25 FCC Title 47, Part 101 25 features, MegaStar 17 federal compliance 26 Federal regulations 25 Part 101 25 Part 1040 26 Part 15 25 Section 21, Parts 1010 & 1040 25 fiber optic links 15 Food and Drug Administration 25 form RMA 175 Routine Maintenance Log 174 Service Registration 176 frequency counter 29, 92 out of range 74

PLS crystal 74 fuse card location 31 fuse ratings 31 fuses 31

G grounding 23

H half-height slots 32 Harris web site 12 history files 85 hours 11

I IEC 801-5 28 improper practices 27 initial measurements 86 testing results 86 injury 27 inoperative fan 155 installation 27 customer requirements 29 power runs 31 separate fusing 31 installation procedure powering on 31 interference 25 internet site 12 interrogate 90

L laser device classification 25 devices 25 radiation 26 limits, radiated emissions 25 links, fiber optic 15 local oscillator phase lock 71 Location 86 location alarm display unit 19 cooling fans 18 data orderwire 19 DDM interface 19 decoder 19 demodulator 19 filter/switch assembly 18 fuse card 31 handset 19 IS3 interface 19 modulator 19 overhead processor 19 Overhead Processor card 32 power amplifier 18 power supply 19 receiver 18 SPU controller 19 transmitter 18 VF orderwire 19 log form entries 87

M mailing address, spare parts 160 managing operation 77

K

manual conventions 21 organization 20 scope 20

kits, conversion 16

manufacture of laser equipment 25

Inventory program 29

measurements required routine 87 •

MegaStar 155 M:N

• • • •

183

MegaStar power source 28 power switch 74

part numbers 157

MegaStar configurations 16

performance checking 85 degradation 86 monitoring 77

MegaStar features 17

phase lock 71

model number 158

phone number orderwire, changing 37

MegaStar capacity 15

module exchange 161 moisture buildup 24 moisture-sensitive device 24 monitoring and control 16 monitoring performance 77

PLS crystal, replacing 140 reprogramming 154 power meter 92 specifications 29 power runs 31

N network construction 15 supervision 90

O office battery distribution system 31

original equipment list 158 out of range frequency 74 Overhead Processor card location 32

P PA power switch 74

• •

Index

program, Inventory 29

radiated emissions limits 25

organization, manual 20

•

product support 177

optical transceivers 25

Orderwire card combinations 32

•

procedure repair and replacement 95 trouble isolation 89

protection system 71

orderwire address 37

•

power switch, MegaStar 74

operation 77 in residential areas 25 managing 77 ordering parts 159

184

power source 28 DC 28

R radiation hazard 27 radio alignment kit 92 radio communications interference 25 Radio Site # 86 rate, transport 15 ratings, fuses 31 receiver AGC alignment 71 regulatory compliance 25 related documents 22 repair and replacement procedures 95 repair and return 161

replaced units 85

software, Inventory 29

replacement procedure transmitter 129

spare parts ordering 159

reprogram VF Orderwire address 123

spare parts, storage 24

required routine measurements 87 test equipment 29

specifications digital multimeter 29 frequency counter 29 power meter 29

requirements external connection 28

spares 93

requirements, installation 29

SPU Controller S2 switch block 33

residential area, operation in 25

standard product warranty terms 178

return freight 162

static electricity problems 24

return material authorization 163

supervising the network 77

returning failed equipment 97

surge protection 28

RF Alignment Kit 154

switch block location, S2 33

routine maintenance log 86

symbol exclamation point 21 pencil and pad 21 stop sign 21

routine measurements required 87

symbol, ESD 24

S S2 switch block location 33

symbols 21 system verification 71

safety precautions 23, 27

T

scope 20

telecommunications network supervising 77

separate fusing 31 Service Registration form 176 setting equipment address 37 shielded cables 25 site controls 90 software FarScan 16 utility 16 software required current equipment database 29 FarScan 29 MegaStar Inventory program 29

terms radio 21 traffic direction 21 test equipment required 29 FarScan computer 29 frequency counter 29 power meter 29 test point AGC voltage 40 traffic, backup 15 traffic, critical 15 •

MegaStar 155 M:N

• • • •

185

Installation Maintenance HARRIS MEGA STAR

Recommend Documents