C33374_20-DIU19S

CU 24020 DATA UNIT 0...64 kbit/s, async/sync, V.110, 4 channels Operating Manual C33374.20 A0

NTC C33374001PE_00

E Copyright Nokia Telecommunications Oy

CU 24020 Operating Manual

The following products comply with the protection requirements of the European Union Council Directive 89/336/EEC relating to electromagnetic compatibility (EMC), when installed using EMC-compatible installation practices (installation in mechanical housings stated to be EMC-compatible and using cabling material [at least as well shielded] and practices as stated in relevant Nokia Telecommunications user manuals): Product code

Product name

Release

CU 24020

Data Unit 0...64 kbit/s, async/sync, V.110, 4 channels

03A

E COPYRIGHT Nokia Telecommunications Oy 1996 All rights reserved. No part of this publication may be copied, distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language without the prior written permission of Nokia Telecommunications Oy. The manufacturer has made every effort to ensure that the instructions contained in the documents are adequate and free of errors and omissions. The manufacturer will, if necessary, explain issues which may not be covered by the documents. The manufacturer’s liability for any errors in the documents is limited to the correction of errors and the aforementioned advisory services. The documents have been prepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using them.The manufacturer welcomes customer comments as part of the process of continual developmentand improvement of the documentation in the best way possible from the user’s viewpoint. Please submit your comments to the nearest Nokia sales representative. NOKIA and the arrows logo are registered trademarks of Nokia Corporation. Any other trademarks mentioned in the documents are the property of their respective owners. Nokia Telecommunications, Network and Access Systems 29.04.1996

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Document History Document

Date

Comment

C33374001PE_00

29.04.1996

The document is valid for unit CU 24020, version 03A, and program CS 24064.01, version 01A.

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Contents

1

Product Description

C33374003SE_00

2

Installation

C33374004SE_00

3

Operation

C33374005SE_00

4

Service Menu Reference

C33374002SE_00

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CU 24020 DATA UNIT 0...64 kbit/s, async/sync, V.110, 4 channels Product Description

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CU 24020 Product Description


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Date

Comment

C33374003SE_00

29.04.1996


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Contents

Chapter 1 About This Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1

Chapter 2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Chapter 3 Operation of the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

3.1

Blocks and Their Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 3.2.8

Data Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ITU-T Recommendation V.14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ITU-T Recommendations V.24 and V.28 . . . . . . . . . . . . . . . . . . . . . . V. 24 Interchange Circuits Used in the Data Unit . . . . . . . . . . . . . . . . Timing of V.24/V.28 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ITU-T Recommendation V.110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . User Rates up to 19.2 kbit/s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . User Rates 48 and 56 kbit/s (not specified for V.24/V.28 interface) . . User Rate 64 kbit/s (not specified for V.24/V.28 interface) . . . . . . . .

7 7 7 8 9 11 11 14 15

3.3

DYNACARD Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

3.4

Operation in Duplex Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

Chapter 4 Test Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19

4.1

Internal Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19

4.2

Test Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21

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Chapter 5 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23

5.1

Data Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23

5.2

Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

5.3

Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

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About This Document

Chapter 1 About This Document This document describes the functional principles of Data Unit CU 24020. The Installation document provides instructions for connecting the signal interface cables, and the Operation document shows how to bring the unit into use. The Service Menu Reference document describes how to control the data unit locally, by using a Service Terminal, and details the menus used in the unit.

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Introduction

Chapter 2 Introduction Data Unit CU 24020 is intended for creating asynchronous and synchronous V.24/V.28 interface data connections into the 2 Mbit/s frame structure of the main unit of the equipment (DB 2, DM 2 or DN 2). Figure 1 shows an application example, where Data Unit CU 24020 has been configured as a part of DM 2, DB 2 and DN 2.

V.24/ V.28

DM 2

DB 2 1

DTE

DN 2 2

2 Mbit/s

2 Mbit/s

2 Mbit/s 3

DTE V.24/V.28

V.24/V.28

DCE

DTE

V.24/V.28

DTE

2-wire/4-wire DCE DYNACARD BUS

V.24/V.28 DTE

DATA UNIT CU 24020 DCE

DATA CIRCUIT–TERMINATING EQUIPMENT

DTE

DATA TERMINAL EQUIPMENT

NOTE: The interface type of the data unit does not depend on the type of the equipment main unit

Figure 1 NTC C33374003SE_00

Application example of Data Unit CU 24020 E Copyright Nokia Telecommunications Oy

3


In synchronous transmission, the range of available data rates is 600 bit/s...64 kbit/s. In asynchronous transmission, rates up to 19.2 kbit/s are available. The adaptation of data interface into the 2 Mbit/s frame structure has been implemented in accordance with ITU-T Recommendation V.110. The V.110-compliant frame structure has been implemented separately for each interface. Depending on the data rate, the interfaces each get 1, 2, 4, or 8 bits of the 8-bit time slot. The interface-specific framing of the data interfaces enables various branching and through-connection functions on the sub-time slot level. The transmission capacity is therefore effectively utilized when several slow data interfaces with different routes are required. Note

4

Software version CS 24064.01 01A is made for special purposes, and does not fully comply with the V.110 and V.24 Recommendations (see usage of V.24 circuit 111 and V.110 X-bit for flow control in chapter 3).


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Operation of the Unit

Chapter 3 Operation of the Unit This chapter gives an overview of the functional blocks and interfaces of Data Unit CU 24020.

3.1

Blocks and Their Functions The block diagram of the unit is shown in Figure 2. The interfaces of the basic unit comply with ITU-T Recommendations V.24 and V.28. An asynchronous-to-synchronous converter is used when an asynchronous Data Terminal Equipment (DTE) is added to the network. In synchronous use the converter is bypassed. In the conversion, the asynchronous data is synchronized to the network in accordance with ITU-T Recommendation V.14. In asynchronous transmission, the length of the character can be 8, 9, 10, or 11 bits, including the data bits, start and stop bits and the parity bit, if one is used. The synchronous data and the specified V.24 control circuits are brought to the V110 ASIC, which comprises two data interfaces. In the transmit direction, the V110 ASIC generates the frame structure (in accordance with ITU-T Recommendation V.110) for each interface; in the receive direction, it releases the framing. The unit microprocessor controls the operation of the V110 ASICs and asynchronous-to-synchronous converters in accordance with the settings given with the Service Terminal (ST), Macro STE (Service Terminal Emulator), or Transmission Management System (TMS). In addition, the processor controls the V.24 circuits that are not transmitted along with the V.110 frame structure.

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5


DYNACARD BUS

PB1

P2

IF1

102 115 103 116 104 125 105 140 106 141 107 142 108 TST2 109 E1A 111 E1B 113 114

IF2

102 115 103 116 104 125 105 140 106 141 107 142 108 TST2 109 E2A 111 E2B 113 114

External Voltage +5 V

V.28/TTL CONVERSION

ASYNC/SYNC CONVERSION V.14

V.110 ADAPTATION

DYNACARD 2 Mbit/s DATA BUS INTERFACE

2 Mbit/s Data Bus

Unit Control V.28

V.28/TTL V.28/TTL CONVERSION TTL


V.110 ADAPTATION

Unit Address

Battery 20...72 V

OPTION MODULE INTERFACE IF1 & IF2 CONTROLLER Red Yellow

RAM EPROM EEPROM

Green

P4

IF3

IF4

102 115 103 116 104 125 105 140 106 141 107 142 108 TST2 109 111 113 114 102 115 103 116 104 125 105 140 106 141 107 142 108 TST2 109 111 113 114

V.28/TTL CONVERSION

V.110 ADAPTATION

DC DC

+5 V

V.28/TTL CONVERSION

Figure 2

6



+12 V –12 V

V.110 ADAPTATION

Functional Blocks of Data Unit CU 24020


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3.2

Data Interface The ITU-T Recommendations relating to the data interfaces are: D D D D

3.2.1

V.14 V.24 V.28 V.110

ITU-T Recommendation V.14 ITU-T Recommendation V.14 describes a method of conveying start-stop characters over a synchronous connection with user data rates up to 19.2 kbit/s. This method tolerates variations in the user data rates of the Data Terminal Equipment (DTE) within two ranges: D D

basic range: extended range:

+1 to –2.5% of the nominal rate +2.3 to –2.5% of the nominal rate

This data unit supports the basic range.

3.2.2

ITU-T Recommendations V.24 and V.28 ITU-T Recommendation V.24 defines the use of interchange circuits in data transmission. ITU-T Recommendation V.28 defines the electrical characteristics of the interchange circuits. Recommendation V.28 corresponds to the EIA 232 standard (former RS-232). The interface circuits of the data interfaces between the data unit and the data terminal equipment are connected to the two front Euroconnectors of the unit. The interface circuits have been arranged as interface-associated groups, thus allowing for cabling with either a full-size Euroconnector or a quarter-size Euroconnector (3x7 pins). The standard V.24/V.28 interface has been defined for transmission rates 0...19.2 kbit/s. However, Data Unit CU 24020 allows even transmission rates 48, 56 and 64 kbit/s to be used. When these higher data rates are used, the cables should be shorter (See the Installation part for the recommended cable lengths and types).

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3.2.3

V. 24 Interchange Circuits Used in the Data Unit ITU-T V.24

Circuit name

102

Signal ground

103

Transmitted data

––>

104

Received data

<––

105

Request to send

––>

106

Ready for sending

<––

107

Data set ready

<––

108

Data terminal ready

––>

109

Received line signal detector

<––

113

Transmitter signal element timing

––>

114


<––

115

Received signal element timing

<––

Table 1

Comments

Network-independent timing is not supported

Use of V.24 circuits according to ITU-T Recommendation V.110

ITU-T V.24

Circuit name

111

Data signal rate selector

––>

Can be monitored; used in flow control

116

Select standby

––>

Can be monitored; use of the circuit is not specified

125

Calling indicator

<––

Can be forced; use of the circuit is not specified

140

Loopback/Maintenance test

––>

Can be used as circuit 141; circuit 140 controlled remote loopback is not supported

141

Local loopback

––>

142

Test indicator

<––

Table 2

8

Direction DTE – DCE (Data Unit)

Direction DTE – DCE (Data Unit)

Comments

Exceptional use of V.24 circuits


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3.2.4

Timing of V.24/V.28 Interface In the asynchronous operating mode, the Data Terminal Equipment (DTE) transmits and receives data in phase with its own clock. The speed difference between the clocks used in the DTE and the data unit is compensated for by manipulating the stop bits of the asynchronous data (Figure 3).

DYNACARDMUX

DYNACARDMUX

DTE 103

103

2 Mbit/s 114

114

104

DTE

104

Data Unit Asynchronous-synchronous conversion (V.14) DYNACARD BUS

Figure 3

Asynchronous-synchronous conversion to the network clock

In the synchronous operating mode, there are two timing principles available: contra-directional and co-directional timing. In the contra-directional timing, the Data Circuit-Terminating Equipment (DCE), in this case the data unit, generates both timing circuit 114 and circuit 115 for the DTE (Figure 4). The timing circuits are generated in the data unit from the network 2048 MHz clock.

DYNACARD– MUX

DYNACARD– MUX

DTE

DTE 103

103 2 Mbit/s

114

114

104

104

115

115

Data Unit DYNACARD BUS

Figure 4

DTE connection with contra-directional timing

Timing circuit 113 can be used for transmission, provided that the circuit is synchronized to timing circuit 115. In this case, timing circuit 115 is looped back at the DTE as timing circuit 113 (Figure 5). This timing principle is known as codirectional timing.

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9


DYNACARDMUX

DYNACARDMUX

DTE

DTE 103

103 113

2 Mbit/s

114

104

104

115

115


Figure 5

DTE connection with co-directional timing

When a synchronous modem connection is used, circuit 115 synchronizes the whole network, in which case circuit 115 is looped at the remote modem and brought back to the data unit as circuit 113 (Figure 6). Network-independent timing is not supported.

DTE

DCE

DYNACARDMUX

DCE

103

104

114

115

103 113

104

103

104

115

113

115

2 Mbit/s


Figure 6

10

DTE connection with modems


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3.2.5

ITU-T Recommendation V.110 ITUĆT Recommendation V.110 discusses connection of the Data Terminal Equipment (DTE) in accordance with the current VĆseries recommendations at the ISDN S/T reference point. Adaptation of the user rate is done in three phases. First, an asynchronousĆtoĆ synchronous conversion produces a synchronous bit stream, which is adapted into an intermediate rate using an 80Ćbit frame and then further into the 64Ăkbit/s BĆchannel (Figure 7). User rates 48 kbit/s and 56 kbit/s are adapted directly into the 64 kbit/s BĆchannel. These rates are framed as 32Ć and 64Ćbit frames.

RA1

RA0

R

RA2

2n .600bit/s

S/T

2 k . 8 kbit/s

stop bit manipulation 2 k . 8 kbit/s Step 1

Figure 7

3.2.6

64 kbit/s

Step 2

Step 3

Three-step bit rate adaptation according to ITU-T Recommendation V.110

User Rates up to 19.2 kbit/s The data unit adapts the V.24/V.28 interface into the intermediate rate in accordance with ITU-T Recommendation V.110. Table 3 presents the intermediate rate for each user rate. Note that the V-series rates 7.2, 12 and 14.4 kbit/s are not supported.

User rate bit/s

Intermediate rate kbit/s

bits/time slot

600

8

1

1200

8

1

2400

8

1

4800

8

1

9600

16

2

19200

32

4

Table 3

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Adaptation of user rate into intermediate rate and further into a time slot


11


The structure of the V.110 frame for rates up to 19.2 kbit/s is shown in Figure 8. When rates 600, 1200 or 2400 bit/s are used, each of the data bits is repeated 8, 4 or 2 times, respectively (see also Table 4). For example, with data rate 600 bit/s, the first data bit is located in bit positions D1–D8, the next data bit in bit positions D9–D16 etc. For rates 4800...19200 bit/s, 48 actual data bits are obtained in a frame, which gives a 60-percent efficiency for the transmission capacity.

Bit number 1

2

3

4

5

6

7

8

1

0

0

0

0

0

0

0

0

2

1

D1

D2

D3

D4

D5

D6

S1

3

1

D7

D8

D9

D10

D11

D12

X

4

1

D13

D14

D15

D16

D17

D18

S3

5

1

D19

D20

D21

D22

D23

D24

S4

6

1

E1

E2

E3

E4

E5

E6

E7

7

1

D25

D26

D27

D28

D29

D30

S6

8

1

D31

D32

D33

D34

D35

D36

X

1

D37

D38

D39

D40

D41

D42

S8

1

D43

D44

D45

D46

D47

D48

S9

Octet number

9 10

ÀÀÀ ÀÀÀ ÀÀÀ ÀÀÀ ÀÀÀ ÀÀÀ

ÀÀÀÀ ÀÀÀÀ ÀÀÀÀ

V.110 frame synchronization pattern Data bits D1...D48 S- and X-bits E-bits

Figure 8

Structure of V.110 frame for user rates up to 19.2 kbit/s

In data transmission mode, the S- and X-bits of the frame contain control data of the interface. The state of the V.24 circuit 108 is transmitted in bits S1, S3, S6 and 12


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S8 (known as SA bits) of the frame. In the receive direction, the bits are received as circuit 107. Correspondingly, circuit 105 is transmitted in bits S4 and S9 (known as SB bits) of the frame; in the receive direction, the bits are received as circuit 109. The X-bits of the frame are used to transmit flow-control information: circuit 111 is transmitted in an X-bit; in the receive direction, this bit is seen as circuit 106. Note

The use of the X-bit and circuit 111 together does not comply with ITU-T recommendations V.110 and V.24.

Bits E1, E2 and E3 are used to transmit information of the user rate; i.e. they indicate whether the data bits in the V.110 frame are repeated (rates 600, 1200 and 2400 bit/s). Bits E4, E5 and E6 are used to transmit phase information on the network-independent timing. Since the data unit does not support network-independent timing, these bits are not in use. Bit E7 is not used either. The function of bit E7 is to transmit the synchronization information on the 4 x 80-bit multiframe with a 600 bit/s rate.

Intermediate rate kbit/s 8 16 32

E-bits

user rate bit/s

E1

Repetition of data bits (times) E2

E3

E4...E7

600

1

0

0

1111

8

1200

0

1

0

1111

4

1

1

0

1111

2

0

1

1

1111

1

2400 4800

Table 4

9600

19200

Use of E-bits in the data unit

The data unit matches the intermediate rate into a time slot in the 2 Mbit/s frame structure and allocates 1, 2 or 4 bits, depending on the user rate. This adaptation corresponds to the third phase adaptation to the 64 kbit/s B-channel (according to the V.110 Recommendation). The time slot and the time slot bits are freely selectable for each interface. Even the transmit and receive direction bits can be selected irrespective of each other. Several interfaces can be multiplexed into one time slot (conforming to Recommendation I.460, flexible multiplexing). The frame synchronization is considered accomplished when two error-free V.110 frames have been received in succession (no errors in the fixed 17-bit frame synchronization pattern). The frame synchronization is lost when three erroneous frames are received in succession, each frame containing at least one bit error in the fixed 17-bit frame synchronization pattern.

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3.2.7

User Rates 48 and 56 kbit/s (not specified for V.24/V.28 interface) User rates 48 and 56 kbit/s are adapted directly into an 8-bit time slot in accordance with Table 5 and Figures 9, 10. The adaptation complies with the adaptation to the 64 kbit/s B-channel (V.110 Recommendation). The frame synchronization is considered accomplished when five (48 kbit/s) or four (56 kbit/s) error-free V.110 frames have been received in succession. The frame synchronization is lost when three erroneous frames are received in succession.

User rate kbit/s


Bits/time slot

48

64

8

56

64

8

Table 5

User rates 48 and 56 kbit/s

2 Mbit/s frame TS0

TS1

TS30

TS31

A time slot of the 2 Mbit/s frame 2 Mbit/s frame number

B1

B2

B3

B4

B5

B6

B7

B8

n

1

D1

D2

D3

D4

D5

D6

S1

n+1

0

D7

D8

D9

D10

D11

D12

X

n+2

1

D13

D14

D15

D16

D17

D18

S3

n+3

1

D19

D20

D21

D22

D23

D24

S4

V.110 frame synchronization pattern Data bits D1...D24 S- and X-bits

Figure 9

14

Adaptation of user rate 48 kbit/s into a time slot


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2 Mbit/s frame TS0

TS1

TS30

TS31

A time slot of the 2 Mbit/s frame 2 Mbit/s frame number

B1

B2

B3

B4

B5

B6

B7

B8

n

D1

D2

D3

D4

D5

D6

D7

0

n+1

D8 D8

D9

D10

D11

D12

D13

D14

X

n+2

D15 D15

D16

D17

D18

D19

D20

D21 D21

S3

n+3

D22

D23

D24

D25

D26

D27

D28

S4

n+4

D29

D30

D31

D32

D33

D34

D35 D35

1

n+5

D8 D36

D37

D38

D39

D40

D41

D42

1

n+6

D15 D43

D44

D45

D46

D47

D48

D49 D21 D49

1

n+7

D50

D51

D52

D53

D54

D55

D50 D56 D56

1

V.110 frame synchronization pattern Data bits D1...D56 S- and X-bits

Figure 10

3.2.8

Adaptation of user rate 56 kbit/s into a time slot

User Rate 64 kbit/s (not specified for V.24/V.28 interface) Adaptation of user rate 64 kbit/s is transparent.

User rate kbit/s 64

Table 6

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Bits/time slot

64

8

Adaptation of user rate 64 kbit/s


15


3.3

DYNACARD Bus Interface The data interfaces of the data unit are connected to the main unit of the equipment (DB 2, DM 2 or DN 2) via the DYNACARD bus on the motherboard. The DYNACARD bus consists of two 2 Mbit/s serial buses: one serves as a data and signalling bus, and the other as a master-slave control bus. The signals on the DYNACARD data and signalling buses are multiplexed to the external 2 Mbit/s interface signals by the equipment main unit. With the exception of multiframing and signalling, the structure of the DYNACARD buses is based on the 2 Mbit/s frame structure as defined in ITU-T Recommendation G.704. The main unit control bus is a slow asynchronous data channel used for communication between the equipment main unit and several tributary units, e.g. the data unit. Every unit installed in a cartridge or subrack has its own, individual address, which indicates the location of the unit in the cartridge.

3.4

Operation in Duplex Mode Operation of the data unit in duplex mode is shown in the state diagram of Figure 11. The operation is based on ITUĆT Recommendation V.110, except that the use of the XĆbit and circuit 111 together is modified for GSM purĆ poses. When the operating voltage is connected to the unit, the interfaces enter the Idle State (IS). If an interface is activated into the 2 Mbit/s bus, the contents of the transmitted signals will be in a continuous binary ``1" state, that is, the V.110 frame will not be transmitted. The ON state of DTE circuit 108 causes the interface to enter the Frame Search State (FRS). The interface will send a fixed V.110 frame with the data bits in binary ``1" state and the SĆ and XĆbits set to state OFF (binary ``1"). Simultaneously, the receiver tries to synchronize itself with the received data. If synchronization is not achieved within ten seconds, the interface will enter the Disconnect State (DS). If the use of circuit 108 has been defined as Not in use, the circuit is controlled into continuous ON state. The interface is then continuously in the FRS state until synchronization is achieved. When the interface has been synchronized, it enters the Data Transfer State (DTS). DTE circuit 111 is connected to the XĆbit of the outgoing frame, and DTE circuits 105 and 108 are connected to the SĆbits of the frame. Circuit 103 of the DTE is connected to the DĆbits of the frame. In the receive direction, the DĆbits of the frame are connected to the DTE as circuit 104, the SĆbits as circuits 107 and 109, and the XĆbit as circuit 106. The farĆend circuit 111 thus controls the nearĆend circuit 106 and consequently enables transmission from the DTE. In other words, the SĆ and XĆbits serve as handshaking signals. No data is transferred before both ends of the connection have been synchronized to each other and are ready to communicate. If synchronization is lost, the interface enters the FRS state again and the X-bit of the outgoing frame is set to OFF state. Circuit 106 is controlled to the DTE state

16


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Operation in Duplex Mode

OFF, but circuits 107 and 109 remain in, or are controlled into ON state. If synchronization is not achieved within three seconds, the interface enters the Disconnect State (DS). A change from the DTS state into the DS state also occurs when DTE circuit 108 has been defined to be used and is switched into OFF state. In the DS state, the D-bits of the outgoing frame have been set to binary ‘‘0” state and the S-bits have been set to OFF state to indicate a request to interrupt. When the 12-ms time-out has elapsed, the interface enters the IS state. Transmission of the frame is then terminated; that is, the continuous binary ‘‘1” state is transmitted. The same procedure is performed when synchronization is lost. The IS state can always be entered by deactivating the interface.

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17


POWER UP RESET FRAME:1 DTE: 104=1, 106=OFF 107=OFF,109=OFF IS

IDLE (READY)

ACTIVATE AND 108=ON FRAME: D=1, SA=OFF SB=OFF, X=OFF TIMER=10s (108 keying)

FRAME:1 DTE: 104=1, 106=OFF 107=OFF, 109=OFF

FRS

DEACTIVATE

FRAME SEARCH

TIMER EXPIRED FRAME: D=0, SA=OFF SB=OFF, X=OFF TIMER=10s (108 keying)

SYNCHRONIZED FRAME: D=103, SA=108 SB=105, X=111 DTE: 104=Drx, 106= Xrx 107=SArx, 109=SBrx

SYNCHRONIZATION LOST FRAME: X=OFF DTE: 104=1, 106=OFF 107=ON, 109=ON TIMER=3s (108 keying)

DTS

DEACTIVATE

DATA TRANSFER

108=OFF FRAME: D=0, SA=OFF SB=OFF, X=ON DTE: 106=OFF TIMER: 12 ms

DS

Explanatory notes: SA = S1, S3, S6, S8 in transmitted frame SB = S4, S9 in transmitted frame SArx = SA in received frame SBrx = SB in received frame Xrx = X in received frame Drx = D in received frame

Figure 11

18

DEACTIVATE

DISCONNECT

SYNCHRONIZATION LOST OR TIMER EXPIRED

State diagram of duplex transmission mode


NTC C33374003SE_00

Test Functions

Chapter 4 Test Functions The data unit provides several self-testing features to test the unit itself. Furthermore, the whole telecommunication link can also be tested piece by piece by using loopbacks. The loopbacks can be set either with the DTE, Service Terminal (ST), Macro STE (Service Terminal Emulator), or Transmission Management System (TMS).

4.1

Internal Test Equipment The data unit includes a built-in synchronous test transceiver, through which the operation of the unit can be tested either internally or as a part of the telecommunications network.

Test Signals D D D D

ITU-T V.52-compliant test sequence PR511 1:1 data pattern, alternating ‘‘1” and ‘‘0” sequence Permanent binary ‘‘1” state Permanent binary ‘‘0” state

Operating Modes D D D

Test transmitter and receiver Test transmitter only Test receiver only

Connections of Test Equipment D D

Towards DTE (synchronous operating mode only) Towards 2 Mbit/s bus (synchronous operating mode only) S V.110-framed S Transparent (64 kbit/s)

NTC C33374003SE_00


19


8 kbit/s 16 kbit/s 32 kbit/s 64 kbit/s

600 bit/s to 19.2 kbit/s 48 kbit/s 56 kbit/s 64 kbit/s

2 Mbit/s

103 V.28/TTL conversion

V.110 rate adaptation

2 Mbit/s time slot allocation

104

TEST EQUIPMENT Transmitter 00 11 1:1 1:1 PR511 PR511

Receiver 0 1 1:1 PR511

Figure 12

20

BER alarm

Connecting the internal test equipment


NTC C33374003SE_00

Test Functions

4.2

Test Loopbacks Test loopbacks are usually controlled by the Service Terminal (ST), Macro STE (Service Terminal Emulator) or Transmission Management System (TMS). Data can also be looped at the far end, if the TMS bus has been connected there, see Figure 13.

DM 2 103

1

104 Service Terminal DYNACARD BUS

Digital transmission network DM 2

2

DYNACARD BUS

1

Loop 1 to interface (L1)

2

Loop 2 to equipment bus (L2) Data Unit CU 24020

Figure 13

NTC C33374003SE_00

Test loopbacks


21


Loopbacks in the Data Unit (see figure 14) 1.

Loop to the V.24/V.28 interface, controlled by S S

2.

Service Terminal, Macro Service Terminal Emulator, TMS DTE circuit 140 or 141

Loop to the 2 Mbit/s bus, controlled by S

Service Terminal, Macro Service Terminal Emulator or TMS

V.28/TTL conversion

asynchronous to synchronous conversion

V.110 rate DSP1 adaptation

2

1

Loop to interface

2

Loop to equipment bus

Figure 14

22

DYNACARD 2 Mbit/s BUS IF

1

Loopbacks in the Data Unit


NTC C33374003SE_00

Technical Specifications

Chapter 5 Technical Specifications

5.1

Data Interfaces Four data interfaces with the following characteristics:

General Direction

Bidirectional

Equipment type

Data circuit-terminating equipment (DCE)

Interface signals, functional

ITU-T Rec. V.24

Interface signals, electrical

ITU-T Rec. V.28

Table 7

General characteristics

Implemented V.24 circuits

Note

105, 106, 107, 108, 109 111

used for GSM application; flow control

113

network-independent timing is not supported; use of the circuit is not possible with user rate 64 kbit/s

114, 115 116

can be monitored; use of the circuit is not specified

125

can be forced; use of the circuit is not specified

140

can be used as circuit 141; remote loopback controlled by circuit 140 is not supported

141, 142

Table 8

NTC C33374003SE_00

Implemented V.24 circuits


23


Operating mode

Data bit rate

Asynchronous

0...600, 1200, 2400, 4800, 9600, and 19200 bit/s

Synchronous

600, 1200, 2400, 4800, 9600, and 19200 bit/s

Synchronous

48, 56, and 64 kbit/s

Table 9

Note

Not specified for standard V.24/V.28 interface; see Installation part for cable recommendations

Operating modes and data bit rates

Use of 64 kbit/s time slot bits 0...4800 bit/s

1 bit

9600 bit/s

2 bits

19200 bit/s

4 bits

48, 56 and 64 kbit/s

8 bits

Table 10

Use of 64 kbit/s time slot bits

Rate adaptation method 0...600 bit/s

4.8 kHz Sampling + ITU-T Rec. V.110

600...19200 bit/s

ITU-T Rec. V.110

48 and 56 kbit/s

ITU-T Rec. V.110

64 kbit/s

Transparent

Table 11

Rate adaptation method

Asynchronous mode features Asynchronous to synchronous conversion

ITU-T Rec. V.14

Number of bits

Start + 6...9 data + 1 stop

Bit rate tolerance

–2.5...+1 %

Table 12

24

Asynchronous mode features


NTC C33374003SE_00

Technical Specifications

5.2

Power Consumption Power consumption Battery voltage

–20...–72 V

Power consumption

3 W max

Table 13

5.3

Power consumption

Mechanical Dimensions Mechanical dimensions Height

233 mm (6 U)

Width

20 mm (4 T)

Depth

160 mm

Weight

300 g

Table 14

NTC C33374003SE_00

Mechanical dimensions


25


26


NTC C33374003SE_00

CU 24020 DATA UNIT 0...64 kbit/s, async/sync, V.110, 4 channels Installation

NTC C33374004SE_00


CU 24020 Installation


ii


NTC C33374004SE_00


Date

Comment

C33374004SE_00

29.04.1996


NTC C33374004SE_00


iii


iv


NTC C33374004SE_00

Contents


1

Chapter 2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Chapter 3 Installing the Unit in a Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . .

5

3.1

Back Connector PB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

3.2

Equipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

Chapter 4 Signal Interfaces and Their Cabling . . . . . . . . . . . . . . . . . . . . . . .

9

4.1

Connectors and Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

4.2

Cabling Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13

4.3

Signal Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

4.4

Marking of Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21

NTC C33374004SE_00


v


vi


NTC C33374004SE_00

About This Document

Chapter 1 About This Document This document describes how to install Data Unit CU 24020 in a cartridge and how to connect the cables to the signal interfaces.

Relation to Other Documents The Product Description document describes the functional principles of the unit, and the Operation document shows how to bring the unit into use. The Service Menu Reference document describes how to control the data unit locally, by using a Service Terminal, and details the menus used in the unit. General cabling instructions and connection instructions for connectors conforming to the TM4 Construction Practice are found in the Operating Handbook for TM4 Construction Practice.

NTC C33374004SE_00


1


2


NTC C33374004SE_00

General

Chapter 2 General Caution

Use wrist grounding or other such protection when handling a plug-in unit removed from its package.

The data units are ready to operate as soon as they have been installed in a cartridge and the signal cables have been connected. Note that one data unit reserves space for 13 alarms in the fault supervision table of the main unit. This may, in certain cases, affect the maximum size of the equipment configuration. (For further information, see the operating handbook for the main unit concerned.)

NTC C33374004SE_00


3


4


NTC C33374004SE_00

Installing the Unit in a Cartridge

Chapter 3 Installing the Unit in a Cartridge

3.1

Back Connector PB1 When the data unit is installed in a cartridge, the central battery voltage is connected to the unit via the motherboard of the cartridge and the back connector PB1 of the unit. The power supply of the unit generates the necessary operating voltages, which are brought to the PB1 connector for test purposes. Two external +5 V voltages are needed for driving the red service LED and interfacing the DYNACARD control and data buses. The connectors on the motherboard of the cartridge and the back connectors of the units have been standardized so that certain signals are always located at the same pins, as shown in Figure 1. Therefore, any type of interface unit can be installed in any location in the cartridge. The data unit can be installed in any free unit location in any TM4 cartridge which contains a DYNACARD-MUX unit. The same cartridge may also contain other Nokia equipment of the same generation.

NTC C33374004SE_00


5


Back connector PB1 Description

2 MHz transmit clock

TCLK

2 MHz receive clock

RCLK

Transmit control data

CMI

Unit address bit 0 Unit address bit 1 Unit address bit 2 Unit address bit 3 Unit address bit 4

Figure 1

6

Signal

UA0 UA1 UA2 UA3 UA4

Signal Description

c a c1 c2 c3 c4 c5 c6 c7 c8 c9 c10 c11 c12 c13 c14 c15 c16 c17 c18 c19 c20 c21 c22 c23 c24 c25 c26 c27 c28 c29 c30 c31 c32

a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 a17 a18 a19 a20 a21 a22 a23 a24 a25 a26 a27 a28 a29 a30 a31 a32

VP5 GND

External voltage +5V Ground

TSYN TDAT RSYN RDAT CMO

2 Mbit/s transmit frame synchronization 2 Mbit/s transmit data 2 Mbit/s receive frame synchronization 2 Mbit/s receive data Receive control data

VP5T

+5 V for testing

VP12T VN12T

+12 V for testing –12 V for testing

VAP5 GND

External aux. voltage +5 V Ground

VNB VPB

Battery voltage, neg. Battery voltage, pos.

Back connector PB1 of the data unit


NTC C33374004SE_00

Installing the Unit in a Cartridge

3.2

Equipping The data unit requires one unit location (width 5 T) in the cartridge. Figure 2 shows an equipping example, where three data units have been installed in a 20-T cartridge.

NOKIA

MUX

P1

20-T cartridge

Rack

P2

P2

P2

P4

P4

P4

2

3

P2

P3

1

Location

LOCATION 1 2 3 4

Figure 2

NTC C33374004SE_00

4

UNIT MUX unit Data unit 1 Data unit 2 Data unit 3

CHANNELS 1...4 1...4 1...4

An example where data units have been configured in a DM 2: a 20-T cartridge houses a PCM multiplex equipment consisting of a MUX unit and three Data Units CU 24020.


7


8


NTC C33374004SE_00

Signal Interfaces and Their Cabling

Chapter 4 Signal Interfaces and Their Cabling The incoming and outgoing data and clock circuits between the data unit and the terminal equipment are wired to the two front Euroconnectors of the unit (see Figures 3–5 and Tables 1–8).

4.1

Connectors and Cables Note

For the cabling between the data unit and other equipment, use only a special cable designed for data communication purposes.

The pin numbering of the data unit interfaces is shown in Figure 3. The interfaces can be cabled either by connector, in which case you should use a full-size Euroconnector, or by interface, in which case you should use a quartersize (3 x 7-pin) Euroconnector; see Figures 4 and 5. When data rates over 19.2 kbit/s are used, the cable should be Nokia type MMHS 8x2x0.4+0.4 or corresponding and less than 2 meters long to guarantee error-free data transmission. Under favourable circumstances the length of the cable can be increased up to 4 meters.

NTC C33374004SE_00


9


CU 24020 V.110 P2

If. Direction Sign. 32a 31a 30a 29a 28a 27a 26a 25a 24a 23a 22a 21a 20a 19a 18a 17a 16a 15a 14a 13a 12a 11a 10a 9a 8a 7a 6a 5a 4a 3a 2a 1a

P4

A102 A 105 A 102 A 114 A 141 A 125 A 142 GND GND

1 1 2 2 2 2 2 2 2 2 2

GND GND B102 B 105 B 102 B 114 B 141 B 125 B 142 GND GND

2 2

GND GND

32b 31b 30b 29b 28b 27b 26b 25b 24b 23b 22b 21b 20b 19b 18b 17b 16b 15b 14b 13b 12b 11b 10b 9b 8b 7b 6b 5a 4b 3b 2b 1b


Note Figure 3

10

1 1 1 1 1 1 1 1 1

If. Direction Sign.

3 3 3 3 3 3 3

C102 C105 C102 C114 C 141 C 125 C 142

4 4 4 4 4 4 4

D102 D105 D102 D114 D 141 D 125 D 142

1 1 1 1 1 1 1 1 1

A 103 A 106 A 109 A TST2 A 108 A 111 A102 GND GND

2 2 2 2 2 2 2 2 2

B 103 B 106 B 109 B TST2 B 108 B 111 B102 GND GND

2 2

GND GND

If. Direction Sign. 32c 31c 30c 29c 28c 27c 26c 25c 24c 23c 22c 21c 20c 19c 18c 17c 16c 15c 14c 13c 12c 11c 10c 9c 8c 7c 6c 5c 4c 3c 2c 1c

If. Direction Sign. 32b 31b 30b 29b 28b 27b 26b 25b 24b 23b 22b 21b 20b 19b 18b 17b 16b 15b 14b 13b 12b 11b 10b 9b 8b 7b 6b 5a 4b 3b 2b 1b

3 3 3 3 3 3 3

C 103 C 106 C 109 C TST2 C 108 C 111 C102

4 4 4 4 4 4 4

D 103 D 106 D 109 D TST2 D 108 D 111 D102

1 1 1 1 1 1 1 1 1

A 104 A 107 A 116 A 115 A 140 A 113 A102 GND GND

1 1 2 2 2 2 2 2 2 2 2

GND GND B 104 B 107 B 116 B 115 B 140 B 113 B102 GND GND

2 2

GND GND


3 3 3 3 3 3 3

C104 C107 C 116 C115 C 140 C113 C102

4 4 4 4 4 4 4

D104 D107 D 116 D115 D 140 D113 D102

The direction is indicated with respect to the unit. Front connectors of Data Unit 24020


NTC C33374004SE_00


CU 24020 V.110 If.

P2


1

2

P4

4

Note

A102 A 105 A 102 A 114 A 141 A 125 A 142

2 2 2 2 2 2 2

B102 B 105 B 102 B 114 B 141 B 125 B 142



3

1 1 1 1 1 1 1

If. Direction Sign.

3 3 3 3 3 3 3

C102 C 105 C 102 C 114 C 141 C 125 C 142

4 4 4 4 4 4 4

D102 D 105 D 102 D 114 D 141 D 125 D 142

1 1 1 1 1 1 1

A 103 A 106 A 109 A TST2 A 108 A 111 A102

2 2 2 2 2 2 2

B 103 B 106 B 109 B TST2 B 108 B 111 B102



3 3 3 3 3 3 3

C 103 C 106 C 109 C TST2 C 108 C 111 C102

4 4 4 4 4 4 4

D 103 D 106 D 109 D TST2 D 108 D 111 D102

1 1 1 1 1 1 1

A 104 A 107 A 116 A 115 A 140 A 113 A102

2 2 2 2 2 2 2

B 104 B 107 B 116 B115 B 140 B113 B102


3 3 3 3 3 3 3

C 104 C 107 C 116 C 115 C 140 C 113 C102

4 4 4 4 4 4 4

D 104 D 107 D 116 D 115 D 140 D 113 D102

The direction is indicated with respect to the unit.

Figure 4

NTC C33374004SE_00

Cabling with a full-size Euroconnector


11


CU 24020 V.110 If.

P2

32a 31a 30a 29a 28a 27a 26a 25a 24a 23a 22a 21a 20a 19a 18a 17a 16a 15a 14a 13a 12a 11a 10a 9a 8a 7a 6a 5a 4a 3a 2a 1a

1

2

P4 3

4

Note Figure 5

12

If. Direction Sign. 1 1 1 1 1 1 1

A102 A 105 A 102 A 114 A 141 A 125 A 142

2 2 2 2 2 2 2

B102 B105 B102 B 114 B 141 B 125 B 142


3 3 3 3 3 3 3

C102 C105 C102 C 114 C 141 C 125 C 142

4 4 4 4 4 4 4

D102 D105 D102 D 114 D 141 D 125 D 142

A 103 A 106 A 109 A TST2 A 108 A 111 A102

2 2 2 2 2 2 2

B 103 B 106 B 109 B TST2 B 108 B 111 B102

32c 31c 30c 29c 28c 27c 26c 25c 24c 23c 22c 21c 20c 19c 18c 17c 16c 15c 14c 13c 12c 11c 10c 9c 8c 7c 6c 5c 4c 3c 2c 1c

If. Direction Sign.


1 1 1 1 1 1 1

If. Direction Sign.


3 3 3 3 3 3 3

C 103 C 106 C 109 C TST2 C 108 C 111 C102

4 4 4 4 4 4 4

D 103 D 106 D 109 D TST2 D 108 D 111 D102

1 1 1 1 1 1 1

A 104 A 107 A 116 A 115 A 140 A 113 A102

2 2 2 2 2 2 2

B 104 B 107 B 116 B 115 B 140 B 113 B102

If. DirectionSign. 32c 31c 30c 29c 28c 27c 26c 25c 24c 23c 22c 21c 20c 19c 18c 17c 16c 15c 14c 13c 12c 11c 10c 9c 8c 7c 6c 5c 4c 3c 2c 1c

3 3 3 3 3 3 3

C 104 C 107 C 116 C 115 C 140 C 113 C102

4 4 4 4 4 4 4

D 104 D 107 D 116 D 115 D 140 D 113 D102

The direction is indicated with respect to the unit. Cabling with a quarter-size Euroconnector


NTC C33374004SE_00


4.2

Cabling Examples The data interfaces can be cabled with either quarter-size or full-size Euroconnectors. It is essential that you know the application for which the data interfaces are used, because in many cases only a few of the V.24 circuits are needed. Figures 6 – 11 give cabling examples for the most common situations: D

Complete cabling, which covers asynchronous and synchronous transmission with all control circuits connected.

D

Cabling for asynchronous transmission with all V.110 control circuits connected.

D

Cabling for asynchronous transmission with only data circuits connected.

Note

In the examples, the direction is indicated with respect to the unit.

Complete cabling with all control and clock circuits connected is shown in Figures 6 and 7. The following circuits are needed:

If.

D

Ground and data circuits: 102, 103 and 104

D

Control circuits transferred in a V.110 frame: 105, 106, 107, 108, 109 and 111

D

Clock circuits: 113, 114 and 115

D

Other circuits: 125, 140, 141 and 142 P4

Dir. Sign. 32a 31a 30a 29a 28a 27a 26a 25a 24a 23a 22a

3

Figure 6

NTC C33374004SE_00

Cabl.

pair wire col.

C102 C105 C102 C114 C141 C125 C142

32b 31b 30b 29b wht/grn 28b blu 27b grn 26b bla/grn 25b 24b 23b 22b

1 a blu 3 a grn 3 6 8 8

b a a b

Dir. Sign.

Cabl.

pair wire col.

Dir. Sign.

32c C103 1 b wht/blu 31c C106 4 a brn 30c C109 4 b wht/brn 29c 28c C108 6 b bla/blu 27c 26c C111 2 a orn C102 25c 24c 23c 22c

Cabl.

pair wire col.

C104 2 b wht/orn C107 5 a gry C115 5 b wht/gry C140 7 a or C113 7 b bla/orn C102

Complete cabling of data interface with a quarter-size Euroconnector (cable MMHS 8 x 2 x 0.4 + 0.4)


13

CU 24020 Installation If.

P4

Dir. Sign.

Cabl.

C102 C105 C102 C114 C141 C125 C142

1 a blu 3 a grn

D102 D105 D102 D114 D141 D125 D142

1 a 3 a

pair wire col.


3

4

Figure 7

3 6 8 8

3 6 8 8

b a a b

b a a b

Dir. Sign.

32b 31b 30b 29b wht/grn 28b 27b blu 26b grn bla/grn 25b 24b 23b 22b 21b 20b 19b 18b 17b 16b 15b blu 14b grn 13b wht/grn 12b 11b blu 10b grn bla/grn 9b 8b 7b 6b 5a 4b 3b 2b 1b

Cabl.

pair wire col.

Dir. Sign.

32c C103 1 b wht/blu 31c 30c C106 4 a brn C109 4 b wht/brn 29c 28c C108 6 b bla/blu 27c 26c C111 2 a orn 25c C102 24c 23c 22c 21c 20c 19c 18c 17c 16c D103 1 b wht/blu 15c 14c D106 4 a brn D109 4 b wht/brn 13c 12c D108 6 b bla/blu 11c 10c D111 2 a orn 9c D102 8c 7c 6c 5c 4c 3c 2c 1c

Cabl.

pair wire col.

C104 2 b wht/orn C107 5 a gry C115 5 b wht/gry C140 7 a orn C113 7 b bla/orn C102

D104 2 b wht/orn D107 5 a gry D115 5 b wht/gry D140 7 a orn D113 7 b bla/orn D102

Complete cabling of data interfaces with a full-size Euroconnector (cable MMHS 2 x 8 x 2 x 0.4 + 0.4)

Cabling for asynchronous transmission with V.110 control circuits connected is shown in Figures 8 and 9. The following circuits are needed:

If.

D


D

Control circuits transferred in a V.110 frame: 105, 106, 107, 108, 109 and 111 P2

32a 31a 30a 29a 28a 27a 26a 25a 24a 23a 22a

1

Figure 8

14

Dir. Sign.

Cabl.

pair wire col.

A102 A105 3 a grn A102

Dir. Sign. 32b 31b 30b 29b 28b 27b 26b 25b 24b 23b 22b

Cabl.

pair wire col.

Dir. Sign.

32c A103 1 b wht/blu 31c A106 4 a brn 30c A109 4 b wht/brn 29c 28c A108 3 b wht/grn 27c A111 1 a blu 26c A102 25c 24c 23c 22c

Cabl.

pair wire col.

A104 2 b wht/orn A107 2 a orn

A102

Cabling for asynchronous transmission with V.110 circuits connected; quarter-size Euroconnector (cable MMHS 4 x 2 x 0.4 + 0.4)


NTC C33374004SE_00


If.

P2

Dir. Sign. 32a 31a 30a 29a 28a 27a 26a 25a 24a 23a 22a 21a 20a 19a 18a 17a 16a 15a 14a 13a 12a 11a 10a 9a 8a 7a 6a 5a 4a 3a 2a 1a

1

2

Figure 9

Cabl.

pair wire col.

A102 A105 3 a grn A102

B102 B105 7 a orn B102

Dir. Sign. 32b 31b 30b 29b 28b 27b 26b 25b 24b 23b 22b 21b 20b 19b 18b 17b 16b 15b 14b 13b 12b 11b 10b 9b 8b 7b 6b 5a 4b 3b 2b 1b

Cabl.

pair wire col.

Dir. Sign.

32c A103 1 b wht/blu 31c 30c A106 4 a brn A109 4 b wht/brn 29c 28c A108 3 b wht/grn 27c 26c A111 1 a blu 25c A102 24c 23c 22c 21c 20c 19c 18c 17c 16c B103 5 b wht/gry 15c 14c B106 8 a grn B109 8 b bla/grn 13c 12c B108 7 b bla/orn 11c 5 a gry 10c B111 9c B102 8c 7c 6c 5c 4c 3c 2c 1c

Cabl.

pair wire col.

A104 2 b wht/orn A107 2 a orn

A102

B104 6 b bla/blu B107 6 a blu

B102

Cabling for asynchronous transmission with V.110 circuits connected; full-size Euroconnector (cable MMHS 8 x 2 x 0.4 + 0.4)

Cabling for asynchronous transmission with only data circuits connected is shown in Figures 10 and 11. The following circuits are needed: D


Usually some of the control circuits are needed for handshaking. To enable transmission, connect the necessary control circuits and force them ON. If.

P2

Dir. Sign. 32a 31a 30a 29a 28a 27a 26a 25a 24a 23a 22a

1

Figure 10

NTC C33374004SE_00

Cabl.

pair wire col.

A102 1 a blu A102 2 a orn

Dir. Sign. 32b 31b 30b 29b 28b 27b 26b 25b 24b 23b 22b

Cabl.

pair wire col.

Dir. Sign.

32c A103 1 b wht/blu 31c 30c 29c 28c 27c 26c A102 25c 24c 23c 22c

Cabl.

pair wire col.

A104 2 b wht/orn

A102

Cabling for asynchronous transmission with only data circuits connected; quarter-size Euroconnector (cable MMHS 2 x 2 x 0.4)


15

CU 24020 Installation If.

P2


1

2

Figure 11

16

Dir. Sign.

Dir. Sign.

Cabl.

pair wire col.

A102 1 a blu A102 2 a orn

B102 3 a grn B102 4 a brn


A103

A102

B103

B102

Cabl.

pair wire col.

Dir. Sign.

32c 1 b wht/blu 31c 30c 29c 28c 27c 26c 25c 24c 23c 22c 21c 20c 19c 18c 17c 16c 3 b wht/grn 15c 14c 13c 12c 11c 10c 9c 8c 7c 6c 5c 4c 3c 2c 1c

Cabl.

pair wire col.

A104 2 b wht/orn

A102

B104 4 b wht/brn

B102

Cabling for asynchronous transmission with only data circuits connected; full-size Euroconnector (cable MMHS 4 x 2 x 0.4 + 0.4)


NTC C33374004SE_00


4.3

Signal Interfaces Interface 1 Symbol V.24

Pin

Use

A102

P2a31, P2a29 P2b25, P2c25

Signal ground

102

Note

A103

103

P2b31

Transmitted data

A104

104

P2c31

Received data

A105

105

P2a30

Request to send

A106

106

P2b30

Ready for sending

A107

107

P2c30

Data set ready

A108

108

P2b27

Data terminal ready

A109

109

P2b29


A113

113

P2c26


A114

114

P2a28


A115

115

P2c28


Table 1

Network independent timing is not supported

Use of circuits according to Recommendation V.110, interface 1

Symbol V.24

Pin

Use

A111

P2b26

Flow control

A116

P2c29


A125

P2a26


ATST2

P2b28


A140

P2c27

Can be used as circuit 141; remote loopback controlled by circuit 140 is not supported

A141

141

P2a27

Local loopback

A142

142

P2a25

Test indicator

GND

Table 2

NTC C33374004SE_00

Note

Ground for cable sheath

Other circuits (cables connected when required), interface 1


17


Interface 2 Symbol V.24

Pin

Use

B102

P2a15, P2a13 P2b09, P2c09

Signal ground

102

B103

103

P2b15

Transmitted data

B104

104

P2c15

Received data

B105

105

P2a14

Request to send

B106

106

P2b14

Ready for sending

B107

107

P2c14

Data set ready

B108

108

P2b11

Data terminal ready

B109

109

P2b13


B113

113

P2c10


B114

114

P2a12


B115

115

P2c12


Table 3



Symbol V.24

Pin

Use

B111

P2b10

Flow control

B116

P2c13


B125

P2a10


BTST2

P2b12


B140

P2c11


B141

141

P2a11

Local loopback

B142

142

P2a9

Test indicator

GND

Table 4

18

Note

Ground for cable sheath

Note

See Figure 3



NTC C33374004SE_00



Pin

Use

C102

P4a31, P4a29 P4b25, P4c25

Signal ground

102

Note

C103

103

P4b31

Transmitted data

C104

104

P4c31

Received data

C105

105

P4a30

Request to send

C106

106

P4b30

Ready for sending

C107

107

P4c30

Data set ready

C108

108

P4b27

Data terminal ready

C109

109

P4b29


C113

113

P4c26


C114

114

P4a28


C115

115

P4c28


Table 5



Symbol V.24

Pin

Use

C111

P4b26

Flow control

C116

P4c29


C125

P4a26


CTST2

P4b28


C140

P4c27


C141

141

P4a27

Local loopback

C142

142

P4a25

Test indicator

Table 6

NTC C33374004SE_00

Note



19



Pin

Use

D102

P4a15, P4a13 P4b09, P4c09

Signal ground

102

D103

103

P4b15

Transmitted data

D104

104

P4c15

Received data

D105

105

P4a14

Request to send

D106

106

P4b14

Ready for sending

D107

107

P4c14

Data set ready

D108

108

P4b11

Data terminal ready

D109

109

P4b13


D113

113

P4c10


D114

114

P4a12


D115

115

P4c12


Table 7



Symbol V.24

Pin

Use

D111

P4b10

Flow control

D116

P4c13


D125

P4a10


DTST2

P4b12


D140

P4c11


D141

141

P4a11

Local loopback

D142

142

P4a9

Test indicator

Table 8

20

Note

Note



NTC C33374004SE_00


4.4

Marking of Cabling Mark the cables so that it is later possible to see to which unit and connector they lead. Record the cabling information on the marking card delivered with the unit. A properly filled card also facilitates later servicing, testing and installation. Instructions concerning the markings can be found in the Operating Handbook for the TM4 Construction Practice.

NTC C33374004SE_00


21


22


NTC C33374004SE_00

CU 24020 DATA UNIT 0...64 kbit/s, async/sync, V.110, 4 channels Operation

NTC C33374005SE_00


CU 24020 Operation


ii


NTC C33374005SE_00


Date

Comment

C33374005SE_00

29.04.1996


NTC C33374005SE_00


iii

CU 24020 Operation

iv


NTC C33374005SE_00

Contents


1

Chapter 2 Start-up of a New Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Chapter 3 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

Chapter 4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

4.1

Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

4.2

Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

4.3

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

4.4

State and Fault Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

NTC C33374005SE_00


v

CU 24020 Operation

vi


NTC C33374005SE_00

About This Document

Chapter 1 About This Document This document covers the following topics: D D

How to bring Data Unit CU 24020 into use for the first time. How to observe the quality of transmission.

Relation to Other Documents The Product Description document describes the functional principles of the unit, and the Installation document provides instructions for connecting the cables. The Service Menu Reference document describes how to control the data unit locally, by using a Service Terminal, and details the menus used in the unit.

NTC C33374005SE_00


1

CU 24020 Operation

2


NTC C33374005SE_00

Start-up of a New Unit

Chapter 2 Start-up of a New Unit This chapter explains the procedure for bringing the data unit into use for the first time. The recommended way to start up a new unit is the following: 1.

Place the unit in the cartridge; if the unit is not installed, the red service LED will turn on.

2.

Connect the Service Terminal to the service connector of the DYNACARDMUX and establish a connection to the equipment (interface cables disconnected) by assigning command OBJ 7 RET. You will receive this response: Current object: AD 4095/DM 2 9600 bit/s /EOB/

The green LED turns on to indicate that a connection from the Service Terminal to the equipment has been established. 3.

Install the unit by selecting response:

TOP

6,2,3

RET.

You will receive the following

Installing /EOB/

The installation will take approximately 10 minutes. When the red LED has gone off, make sure that the unit has been installed by assigning command TOP 6,2,0 RET. A response example: MUX–2M DIU–19S DIU–19S DIU–19S /EOB/

NTC C33374005SE_00


unit 1 unit 2 unit 3 unit 4

3

CU 24020 Operation

4.

Deactivate all active interfaces by assigning command TOP 6,9,u,1 (u = unit location). The unit should now respond by displaying Done.

5.

Run channel tests for each interface by assigning command TOP 9,9,u,2,ch RET (ch = channel 1...4). The unit should now respond by displaying Channel ok.

6.

Check error messages given by the equipment by assigning command TOP 1 RET.

RET

The data unit is now ready to receive the settings.

4


NTC C33374005SE_00

Settings

Chapter 3 Settings The unit is provided with factory settings, which can be modified whenever necessary. You can also read the settings from one interface and save them to another with the Service Terminal. The controlling of the data unit locally, through the service interface of the equipment’s main unit (DYNACARD-MUX), is described in further detail in document Service Menu Reference.

NTC C33374005SE_00


5

CU 24020 Operation

6


NTC C33374005SE_00

Maintenance

Chapter 4 Maintenance The data unit does not require any scheduled maintenance. Servicing is required only when faults are indicated by alarms. The self-tests performed by the unit itself are useful for further location of any faults that may occur.

4.1

Tests The data unit can perform the following self-tests: D

Channel tests Test the operation of each interface of the unit with all operation modes and transmission rates.

D

A/D test Tests the A/D converter of the unit.

D

Memory tests Test the memory operations of the RAM, EPROM and EEPROM of the unit.

The data unit is equipped with an interface-specific test transmitter/receiver, which, along with the unit loopbacks, can be used to test the connection without having to use any separate measuring instruments.

4.2

Statistics The data unit gathers information for the following statistics: D

CPU reset Counts the CPU resets.

D

Loss of V.110 frame alignment Detects V.110 frame alignment losses.

NTC C33374005SE_00


7

CU 24020 Operation

4.3

Alarms When the red service LED is on, there is usually a serious fault in the unit and it will have to be replaced with a new one. In the data unit, the red service LED is used also to indicate bit errors on the transmission path when the unit is in test mode. The yellow service LED indicates that the unit is in test mode, that a loopback has been set, that an interface is queuing for activation, that the incoming line signal is missing, or that the frame synchronization has been lost. The fault is thus not necessarily in the unit that indicates the alarm. The green service LED is on when the unit is accessed by the Service Terminal.

4.4

State and Fault Messages The state and fault messages of the data unit are listed in Table 1. The fault display of the unit can be read by assigning command TOP 1 with the Service Terminal. Note that one data unit reserves space for 13 alarms in the fault supervision table of the main unit. This may, in certain cases, affect the maximum size of the equipment configuration. (For further information, see the operating manual for the main unit concerned.)

Fault code

LED

Rack alarm

Fault

Dec

Hex

020

14

Blocked from use

yellow

B

Queuing for activation

021

15

Loop to interface

yellow

B

Loop to interface

022

16

Loop to equipment

yellow

B


023

17

Test mode

yellow

B

Test generator on

061

3D

No incoming line signal

yellow

B

Fault code reserved, but not in use

096

60

BER alarm

red

A

Bit error rate alarm of test generator

122

7A

Synchronizing fault

yellow

A

V.110 frame synchronization fault

130

82

Memory fault

red

A

Memory fault

142

8E

Installation error

red

A


148

94

Equipment reset

red

A

Unit reset in progress

149

95

Forced indication

red/yellow/– A

159

9F

Run diagnostic tests red

Table 1

8

Fault message

A

Forced indication of LEDs Miscellaneous faults

State and fault messages of the data unit


NTC C33374005SE_00

CU 24020 DATA UNIT 0...64 kbit/s, async/sync, V.110, 4 channels Service Menu Reference

NTC C33374002SE_00


CU 24020 Service Menu Reference


ii


NTC C33374002SE_00


Date

Comment

C33374002SE_00

29.04.1996


NTC C33374002SE_00


iii


iv


NTC C33374002SE_00

Contents


1

Chapter 2 Service Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Chapter 3 How to Control and Access the Unit with Service Terminal . . . .

13

Control Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accessing the Data Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13 14

Chapter 4 Service Terminal Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

Chapter 5 Data Unit Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

5.1

Fault Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

5.2

Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u DIU-19S Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u,3 User Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u,5 HW-unit ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u,6 Program ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19 19 19 19 19

5.3

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u DIU-19S Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,1 To Normal State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,2 Interface Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,2,ch,6 Test Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,2,ch,6,1 Test Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,2,ch,6,2–4 Tx/Rx Connection . . . . . . . . . . . . . . . . . . . . . . . .

20 20 20 21 21 21 22

NTC C33374002SE_00


v


5.4

Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u DIU-19S Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,1 Deactivate Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2 Channel Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3 Copy Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,4 Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,5 Activate Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,6 Deactivate Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,7 Control Time-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,8 Read/Save All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23 23 24 24 24 24 25 25 25 26

5.5

Channel Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch Channel Settings (ch = channel) . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,1 V.28 Interface Type . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,2 V.24 Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,2,1 Circuit 105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,2,2 Circuit 106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,2,3 Circuit 107 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,2,4 Circuit 108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,2,5 Circuit 109 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,2,6 Other Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,2,6,4 Circuit 140 Use for Local Loop . . . . . . . . . . . . . . 6,9,u,2,ch,2,6,5 Circuit 141 Use for Local Loop . . . . . . . . . . . . . . 6,9,u,2,ch,2,6,6 Circuit 142 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,3 Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,3,1 Synchronous Mode . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,3,1,1 Data Bit Rate for Synchronous Mode . . . . . . . . . . 6,9,u,2,ch,3,1,2 Tx Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,3,1,3 Transfer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,3,2 Asynchronous Mode . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,3,2,1 Data Bit Rate for Asynchronous Mode . . . . . . . . . 6,9,u,2,ch,3,2,2 Character Length for Asynchronous Mode . . . . . 6,9,u,2,ch,3,2,3 Transfer Mode for Asynchronous Mode . . . . . . . . 6,9,u,2,ch,4 Time Slot Allocations . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,5 Activate Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,6 Deactivate Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,8,mode,bit rate,char len,bitmask,time slot Set Channel Settings (hidden menu branch) . . . . . . . . . . . . . . . . . . 6,9,u,2,ch,9 Deactivate Channel (hidden menu branch) . . . . . . . . . 6,9,u,2,ch,10 Check Channel Activity (hidden menu branch) . . . .

26 26 26 27 27 27 28 28 28 29 29 29 30 30 30 30 31 31 32 32 32 33 33 33 33 34 34 34

5.6

Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u DIU–19S Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,1 Voltage Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35 35 35

5.7

Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8,9,u DIU–19S Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

36 36

5.8

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,9,u DIU–19S Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37 37

vi


NTC C33374002SE_00

About This Document

Chapter 1 About This Document This document describes how to control Data Unit CU 24020 locally, by using a Service Terminal, and details the menus used in the unit. The document covers the following topics: D D D D

Service menu diagrams of the unit (Chapter 2). Principles for controlling the unit (Chapter 3). Description of the Service Terminal main menu (Chapter 4). Unit menus (Chapter 5). S How to get information about faults (Section 5.1). S How to set and read identifications (Section 5.2). S How to set temporary controls (Section 5.3). S How to set and modify unit and channel settings (Sections 5.4 and 5.5). S How to measure voltages in the unit (Section 5.6). S How to get information on statistics concerning the unit (Section 5.7). S How to conduct tests on the unit (Section 5.8).

Relation to Other Documents The Product Description document describes the functional principles of the unit, and the Installation document provides instructions for connecting cables. The Operation document shows how to bring the unit into use The general operation principles of the Service Terminal are found in the Operating Manual for Service Terminal TC 21700.

NTC C33374002SE_00


1


2


NTC C33374002SE_00

Service Menus

Chapter 2 Service Menus This chapter shows the service menu diagrams used in data unit. The diagrams consist of rectangular boxes (representing Service Terminal displays), which are arranged in hierarchical fashion: the main menu is shown on the top left of the page and the submenus proceed downwards and to the right of the main menu.

NTC C33374002SE_00


3


MAIN LEVEL MENU TOP 4,9,u DIU–19S Identifications: 3 User manual 5 HW–unit ID 6 Program ID 7 Modify IDs

Select Operation: 1 Fault display 2 Local alarm cancel 3 Reset local cancel 4 Identifications 5 Controls (temporary) 6 Settings (permanent) 7 Measurements 8 Statistics 9 Testing 10 User privileges 11 Miscellaneous

DIU–19S Controls: 0 Display 1 To normal state 2 Interface controls 4 Forced indications

Page 6

6,9,u

4–9

Select unit selection: 9 m,9 Select unit number: (the place of the unit in in the rack)

Page 5

5,9,u

Select the main level: 4...9 m

For sublevel, go to

u

DIU–19S Settings: 0 Display all 1 Deactivate all channels 2 Channel settings 3 Copy channel 4 Default settings 5 Activate channel 6 Deactivate channel 7 Control timeout 8 Read/Save all 7,9,u DIU–19S Measurements: 1 Supply voltage

Abbreviations used in the menu paths: addr = address ch = channel m = main level n = number ts = time slot u = unit

4

Pages 7–10

Page 11

8,9,u DIU–19S Statistics: 1 Cpu resets 2 Channel frame losses

Page 11

9,9,u DIU–19S Testing: 1 Test default 2 Channel test 3 Deactivate channels 4 A/D tests 5 Memory tests 6 Memory operations 7 Diagnostics


Page 11

NTC C33374002SE_00

Service Menus

IDENTIFICATIONS

4,9,u DIU–19S Identifications: 3 User manual 5 HW–unit ID 6 Program ID 7 Modify IDs

4,9,u,3 C33374002SE_0 4,9,u,5 CU 24020 03A 4,9,u,6 CS 24064.01 01A 4,9,u,7 Give .–version: 0 – 99

NTC C33374002SE_00


4,9,u,7,n Give version: 3 characters

5


CONTROLS 5,9,u DIU–19S Controls: 0 Display 1 To normal state 2 Interface controls 4 Forced indications 5,9,u,2

ch 1...4

Interface controls: Give channel number 1...4

5,9,u,2,ch Interface controls: 0 Display 1 To normal state 2 Loop to interface 3 Loop to eq. bus 6 Test generator 5,9,u,2,ch,6

5,9,u,2,ch,6,1

Test generator: 1 Test pattern 2 Tx/rx connection 3 Tx connection 4 Rx connection

Test pattern: 0 Display 1 TxD = 0 2 TxD = 1 3 TxD = 1:1 4 TxD = PR511 5,9,u,2,ch,6,2 Tx/Rx connection: 0 Display 1 Normal state 2 To 2M dir. with V.110 3 To 2M dir. without V.110 4 To DTE dir. 5,9,u,2,ch,6,3 Tx connection: 0 Display 1 Normal state 2 To 2M dir. with V.110 3 To 2M dir. without V.110 4 To DTE dir. 5,9,u,2,ch,6,4 Rx connection: 0 Display 1 Normal state 2 To 2M dir. with V.110 3 To 2M dir. without V.110 4 To DTE dir.

5,9,u,4 Forced indications: 0 Display 1 Normal indic. 2 Forced red indic. 3 Forced yellow indic. 4 Forced no indic.

6


NTC C33374002SE_00

Service Menus

SETTINGS 6,9,u DIU–19S Settings: 0 Display all 1 Deactivate all channels 2 Channel settings 3 Copy channel 4 Default settings 5 Activate channel 6 Deactivate channel 7 Control timeout 8 Read/save all

6,9,u,2

ch 1...4

Channel settings: Give channel number 1...4

ch 1...4

6,9,u,3

Copy channel settings: From channel 1...4

6,9,u,2,ch Channel settings: 0 Display 1 V.28 interface type 2 V.24 circuits 3 Operating mode 4 TS allocations 5 Activate channel 6 Deactivate channel

See page 8

6,9,u,3,ch Copy channel settings: To channel 1...4

ch 1...4

6,9,u,4 Set defaults to 1 Channels 1...2 2 Channels 3...4

ch 1...4

6,9,u,5

Activate channel Give channel number 1...4 ch 1...4

6,9,u,6

Deactivate channel Give channel number 1...4 6,9,u,7 Control time–out 0 display 1,...,65000 min. 6,9,u,8 Read/Save all: 0 Display ID 1 Read settings 2 Save settings

1)

1) Press 2 INV DATA RET

NTC C33374002SE_00


7


SETTINGS: Channel settings 6,9,u,2,ch Channel settings: 0 Display 1 V.28 interface type 2 V.24 circuits 3 Operating mode 4 TS allocations 5 Activate channel 6 Deactivate channel

6,9,u,2,ch,1 V.28 interface type: 0 Display 1 Local 6,9,u,2,ch,2 V.24 circuits: 0 Display 1 105 2 106 3 107 4 108 5 109 6 Other

6,9,u,2,ch,3 see page 10

6,9,u,2,ch,2,1 Circuit 105: 0 Display 1 Normal (V.110) 2 Not in use 3 Use for transm. control 6,9,u,2,ch,2,2 Circuit 106: 0 Display 1 Normal (V.110) 2 Forced OFF 3 Forced ON 4 Delayed 6,9,u,2,ch,2,3 Circuit 107: 0 Display 1 Normal (V.110) 2 Forced OFF 3 Forced ON 6,9,u,2,ch,2,4 Circuit 108: 0 Display 1 Normal (V.110) 2 Not in use 6,9,u,2,ch,2,5 Circuit 109: 0 Display 1 Normal (V.110) 2 Forced OFF 3 Forced ON 6,9,u,2,ch,2,6 Other circuits: 0 Display 1 111 2 116 3 125 4 140 5 141 6 142 7 TST2

6,9,u,2,ch,4 TS allocation: 6,2,n,2,6 0 Display 1 Tx/Rx time slots 2 Tx time slots only 3 Rx time slots only

6,9,u,2,ch,4,1–3 TS allocation select time slot: 1...31 time slot

See page 9

6,9,u,2,ch,4,1–3, ts Bit mask give bit mask B1...8

6,9,u,2,ch,8–10 Hidden menu branches, see section 5.5

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Service Menus

SETTINGS: Other circuits than V.24

6,9,u,2,ch,2,6 Other circuits: 0 Display 1 111 2 116 3 125 4 140 5 141 6 142 7 TST2

6,9,u,2,ch,2,6,1 Circuit 111: 0 Display 6,9,u,2,ch,2,6,2 Circuit 116: 0 Display 6,9,u,2,ch,2,6,3 Circuit 125: 0 Display 2 Forced OFF 3 Forced ON 6,9,u,2,ch,2,6,4 Circuit 140 use for local loop: 0 Display 1 In use 2 Not in use 6,9,u,2,ch,2,6,5 Circuit 141 use for local loop: 0 Display 1 In use 2 Not in use 6,9,u,2,ch,2,6,6 Circuit 142: 0 Display 2 Use for LL indicator 3 Forced ON 6,9,u,2,ch,2,6,7 Circuit TST2: 0 Display 2 Forced OFF 3 Forced ON

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9


SETTINGS: Operating mode 6,9,u,2,ch,3 Operating mode: 0 Display 1 Synchronous 2 Asynchronous

6,9,u,2,ch,3,1 Synchronous mode: 1 Data rate 2 Tx timing 3 Transfer mode

6,9,u,2,ch,3,1,1 Data bit rate: 0 Display 1 600 bit/s 2 1200 bit/s 3 2400 bit/s 4 4800 bit/s 5 9600 bit/s 6 19200 bit/s 7 48 kbit/s 8 56 kbit/s 9 64 kbit/s 6,9,u,2,ch,3,1,2 Tx timing: 0 Display 1 114 2 113 3 115 6,9,u,2,ch,3,1,3 Transfer mode: 0 Display 1 Duplex point–to–point 2 Simplex tx 3 Simplex rx 4 Point–to–multipoint

6,9,u,2,ch,3,2 Asynchronous mode: 1 Data rate 2 Character length 3 Transfer mode

6,9,u,2,ch,3,2,1 Data bit rate: 0 Display 1 600 bit/s 2 1200 bit/s 3 2400 bit/s 4 4800 bit/s 5 9600 bit/s 6 19200 bit/s 6,9,u,2,ch,3,2,2 Character length: 0 Display 1 8 bits 2 9 bits 3 10 bits 4 11 bits 6,9,u,2,ch,3,1,3 Transfer mode: 0 Display 1 Duplex point–to–point 2 Simplex tx 3 Simplex rx 4 Point–to–multipoint

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Service Menus

MEASUREMENTS 7,9,u DIU–19S Measurements: 1 Supply voltage

7,9,u,1

n 1...3

Voltage measurements: 1 +5 V 2 –12 V 3 +12 V

7,9,u,1,n Supply voltage +5V (–12 V, +12 V): 0 Display voltage 1 Display voltage (float) 2 Calibration 7,9,u,1,n,2 Give measured supply voltage in mV (without sign.)

STATISTICS 8,9,u DIU–19S Statistics: 1 CPU resets 2 Channel frame losses

8,9,u,1 CPU resets: 0 Display 1 Clear counter 8,9,u,2

ch 1...4

Channel frame losses give channel number 1...4

8,9,u,2,ch Frame losses detection: 0 Display 1 Clear detector

TESTING 9,9,u DIU–19S Testing: 1 Test default 2 Channel test 3 Deactivate channels 4 A/D tests 5 Memory tests 6 Memory operations 7 Diagnostics

9,9,u,2 Channel test Give channel number 1...4 9,9,u,5 Memory test: 1 RAM 2 EPROM 3 EEPROM

9,9,u,6,1 or 2 or 3 Give memory address: 0...65535 9,9,u,6,2,addr. Give byte value: 0...255

9,9,u,6 Memory operations: 1 Read byte 2 Write byte in ram 3 Read 8 bytes 4 Write byte in eeprom

9,9,u,6,4 Give eeprom offset: 0...511 9,9,u,6,4,offset Give byte value: 0...255

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How to Control and Access the Unit with Service Terminal

Chapter 3 How to Control and Access the Unit with Service Terminal This chapter explains briefly the principle for controlling the unit with a Service Terminal. A more detailed description on the use of the Service Terminal is described in the Operating Manual for Service Terminal TC 21700. With the Service Terminal, you can assign the basic settings to the unit and store them into a nonvolatile storage. You can also take maintenance-related measures, e.g. set loopbacks, and read e.g. identifications or statistics from the unit.

Control Principle The equipment is controlled by choosing options on menus. You can also bypass intermediate menu levels by keying in several selections as one string, if you know the entire command string (e.g. 5,9,3,2,3 to loop back the outgoing 2048 kbit/s signal of the 2M interface of the data unit; in this example we assume that the unit was installed in unit location 3). Within command strings, commas are used as command parameter delimiters, and the command is executed with the RET key. The Service Terminal keypad is shown in Figure 1.

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13


OFF

ON

Select operation: 1 Fault display 2 Local alarm cancel 3 Reset local cancel

F1

F2

F3

F4

MODE

OBJ

TOP

UP >...

HELP

STO

RCL

DEF

DATA

7

8

9

ASCII

D

4

F

INV

6

A

B

C

1

2

3

DEL

.

#

AUTO

EXP

-

Figure 1

E

5

0

,

RET

Service Terminal keypad

Accessing the Data Unit Since the data unit is not provided with a service interface of its own, the Service Terminal functions must be directed to the unit via the main unit (DYNACARDMUX) of the equipment. To access the data unit, select first the main level menu (4...9), then 9 separated by a comma, and finally the unit number u: 4...9,9,u .

The unit numbering starts from 1 on the left.

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Service Terminal Main Menu

Chapter 4 Service Terminal Main Menu When the Service Terminal is switched on, it shifts into mode Equipment operation/Select operation, which is the factory setting, and displays the main menu common to all equipment: Select Operation: 1 Fault display 2 Local alarm cancel 3 Reset local cancel 4 Identifications 5 Controls (temporary) 6 Settings (permanent) 7 Measurements 8 Statistics 9 Testing 10 User privileges 11 Miscellaneous

1

Fault Display

The fault display indicates the fault situation of the equipment. The display shows: D D D D

The equipment ID (e.g. DM 2 ABC) The fault category (A, B, D, S, or a combination of these) The supervision block indicating the fault The fault type

2

Local Alarm Cancel

In the event of a fault, Local alarm cancel cancels the rack alarms A and B. As a reminder of cancellation, the equipment provides a D-alarm. Cancelling an alarm without a fault situation also produces a B-alarm. The Local alarm cancel concerns the entire equipment.

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3

Reset Local Cancel

The normal situation is restored.

4

Identifications

Under this item, you can read unit identification data, such as unit identification and the type and version of the program used. Some of the identifications can also be modified.

5

Controls (temporary)

Under this item, you can assign controls (e.g. interface loopbacks) that temporarily change the operating mode of the unit. The controls are lost e.g. in connection with reset.

6

Settings (permanent)

Settings determine the operating mode of the unit. The settings are permanent and are therefore retained in the equipment memory even in the event of a power failure. The special settings for GSM purposes are not, however, permanent.

7

Measurements

Under this item, you can start voltage measurements made by the unit itself (without external measuring instruments).

8

Statistics

Reading and resetting of statistics gathered by the equipment itself.

9

Testing

User-activated tests performed by the unit itself.

10 User Privileges This item covers the protective facilities of the equipment. Some of the unit functions (e.g. Settings) can be protected by setting a password, which must be known if the protected functions are to be modified. The user privileges concern the entire equipment.

11 Miscellaneous This item covers the functions not included in the other categories (not yet in use).

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NTC C33374002SE_00

Data Unit Menus

Chapter 5 Data Unit Menus The data unit is controlled via the service interface of the main unit (DYNACARD–MUX). The main unit provides the menus related to the common section of the equipment and the menus for accessing the target unit. The data unit provides the menus required for its own control.

5.1

Fault Display The main unit collects fault data from the other units into a common fault storage. At initialization, the main unit collects from each unit the following data: the faults in the unit, their effect on the alarm outputs, the fault code related to each fault, how the fault is indicated (colour of indicator), and name of the supervision block. The main unit generates the response shown in the fault display; the response contains the following information: D D D

Equipment ID (equipment name) Fault status Fault data: S Fault object S Fault type (fault code)

Example: *DM ABC (AS) DM2/1 (unit 1) – frame alignment lost DIU 19S (unit 3) – synchronizing fault

In the above example, the equipment, named DM 2 ABC, has alarms A and S. The fault indications are received from the supervision block of equipment interface 1 (unit 1), where the fault is loss of frame alignment, and from the supervision block of the data unit (unit 3), where the fault is loss of V.110 frame synchronization.

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Table 1 lists the types of fault supervised in the DIU 19S.

Fault code

Fault message

Fault

14

Blocked from use

Queuing for activation

021

15

Loop to interface

Loop to interface

022

16

Loop to equipment


023

17

Test mode

Test generator on

061

3D

No incoming line signal


096

60

BER alarm

Bit error rate alarm of test generator (also checked in simplex Tx mode)

122

7A

Synchronizing fault

V.110 frame synchronization fault (not checked in simplex Rx mode)

130

82

Memory fault

Memory fault

142

8E

Installation error


148

94

Equipment reset

Unit reset in progress

149

95

Forced indication

Forced indication of LEDs

159

9F

Run diagnostic tests

Miscellaneous faults

Dec

Hex

020

Table 1

18

Faults supervised in DIU 19S


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Data Unit Menus

5.2

Identifications 4,9,u DIU-19S Identifications DIU–19S Identifications: 3 User manual 5 HW–unit ID 6 Program ID 7 Modify IDs

In the menu, options 3...6 display the unit identifications, which can be modified via option 7.

4,9,u,3 User Manual The document number of the Service Menu Reference document related to the program; fixed. Response example: C33374002SE_0

4,9,u,5 HW-unit ID Product code and version of the unit. Set at factory, but changeable e.g. in connection with repair. Response example: CU 24020 03A

4,9,u,6 Program ID Product code and version of the program; fixed. Response example: CS 24064.01 01A

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5.3

Controls 5,9,u DIU-19S Controls DIU 19S Controls: 0 Display controls 1 To normal state 2 Interface controls 4 Forced indications

5,9,u,0 Display Controls This selection displays the interface-specific controls of the unit. Response example: Display ctrl type IF1: Loc. IF2: Loc. IF3: Loc. IF4: Loc.

& status controls status – – PR511 A L1 – 1:1 A – – Txd = 1 A – – – nA

The interface-specific controls are: D

Interface type S defines the electrical matching of the interface. Loc. = Local V.24/V.28 interface

D

Controls S indicates the temporary loops set at the interface: L1 = loop 1 to interface L2 = loop 2 to equipment bus S indicates the temporary test data pattern to the interface: PR511 = ITU-T V.52–compliant test sequence PR511 1:1 = data pattern with alternating ‘‘1”s and ‘‘0”s TxD=0 = permanent ‘‘0”-state TxD=1 = permanent ‘‘1”-state

D

Status S indicates the channel status: A = activated nA = not activated QA = queuing for activation rA = queuing for deactivation

5,9,u,1 To Normal State The selection forces all unit controls to normal state.

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Data Unit Menus

5,9,u,2 Interface Controls The program prompts for the number of the data interface and then displays the menu: Interface controls: 0 Display 1 To normal state 2 Loop to interface 3 Loop to eq. bus 6 Test generator

Selection 0 displays the state of the interface. Selection 1 sets the interface to normal state. Selection 2 connects the signals received from the interface back to the output of the same interface (loop L1). The loopback is selectable only for channels that are in use; the time slots and bit masks must be the same in the receive and transmit directions. When this option is selected, the program generates a fault message concerning the loopback. Selection 3 connects the signals received from the 2 Mbit/s frame back to the frame (loop L2). A fault message concerning the loopback is given. The L2 loop cannot be set on when the data rate is 64 kbit/s.

5,9,u,2,ch,6 Test Generator Test generator: 1 Test pattern 2 Tx/Rx connection 3 Tx connection 4 Rx connection

5,9,u,2,ch,6,1 Test Pattern Test pattern: 0 Display 1 TxD = 0 2 TxD = 1 3 TxD = 1:1 4 TxD = PR511

Selection 0 displays the test data pattern currently in use. Selections 1 and 2 control the transmitted data into a selected state. Selection 3 sets the transmitted data as alternating zeros and ones, whereas selection 4 sets it to comply with test pattern PR511.

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21


5,9,u,2,ch,6,2–4 Tx/Rx Connection Test generator options 2, 3 and 4 control the directions of the received and transmitted data flow. The selection is made in the following menu: Tx/Rx connection: 0 Display 1 Normal state 2 To 2M dir. with V.110 3 To 2M dir. without V.110 4 To DTE direction

Selection 0 displays the current status of the connection. Selection 1 controls the connection to normal state. Selection 2 connects the data to the direction of the 2M bus and adds the V.110 frame to the data. Selection 3 connects the data to the direction of the 2M bus, but does not add the V.110 frame to the data (only when the data rate is 64 kbit/s). Selection 4 connects the data to the DTE direction.

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Data Unit Menus

5.4

Settings 6,9,u DIU-19S Settings The main menu for the data unit settings is the following: DIU–19S Settings: 0 Display 1 Deactivate all channels 2 Channel settings 3 Copy channel 4 Default settings 5 Activate channel 6 Deactivate channel 7 Control time-out 8 Read/Save all

6,9,u,0 Display All Interfaces Selection 6,9,u,0 displays the interface-specific settings for each channel. Response example: Display all interfaces: type rate mode IF1: Loc. 4800 Syn. IF2: Loc. 4800 Syn. IF3: Loc. 9600 Syn. IF4: Loc. 19200 Syn.

TS/B1...8 status TS31/10000000 nA TS31/01000000 nA TS31/00110000 nA TS31/00001111 nA

The interface-specific settings are: D

Interface type S Defines the electrical matching of the interface Loc. = Local V.24/V.28 interface

D

Rate S Indicates the baud rate of the Data Terminal Equipment

D

Mode S Indicates the operating mode of the interface: Syn = synchronous interface Asy = asynchronous interface

D

Time slot settings and bit position allocations (TS/B1...8) S Define the bits allocated to the channel in the 2M frame

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23


D

Channel status S Defines the channel connection to the 2M frame structure S The channel status is indicated by the following abbreviations: Activated A Not activated nA Queuing for activation QA Queuing for deactivation rA

While the channel is queuing, the main unit receives a fault message on this. D

If the operating mode selected for the channel is simplex, the displayed status information will be: Tx = simplex, transmit Rx = simplex, receive

D

If the operating mode of the channel is point-to-multipoint, the status information displayed will be: MP = point-to-multipoint connection

Note

Even if simplex and point-to-multipoint operating modes can be selected, these are not supported.

6,9,u,1 Deactivate Channels Selection 6,9,u,1 sets all channels into a deactivated state. None of the channels is connected to the 2M bus.

6,9,u,2 Channel Settings You can access the channel-specific settings through selection 6,9,u,2 . The channel settings are described in further detail in section 5.5, Channel settings.

6,9,u,3 Copy Channel Selection 6,9,u,3 reads the channel settings from a channel and saves them to another.

6,9,u,4 Default Settings Selection 6,9,u,4 sets on the default settings for the channels. The default settings for Data Unit CU 24020 are listed in Table 2.

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NTC C33374002SE_00

Data Unit Menus

Setting

Default value

Interface type

Local V.28

Operating Mode

Synchronous

Transfer mode

Duplex point-to-point

Tx timing

115

Channel settings for IF1: IF2: IF3: IF4:

Rate 4800 4800 9600 19200

Time slot (Rx/Tx)

31

Status

Not active

V.24 circuits: 105 106 107 108 109 125 140 141 142 TST2

Normal (V.110) Normal (V.110) Normal (V.110) Normal (V.110) Normal (V.110) Forced OFF Not in use Not in use Use for LL indicator Forced OFF

Table 2

Bit mask (Rx/Tx) 10000000 01000000 00110000 00001111

Default settings for the channels

6,9,u,5 Activate Channel Selection 6,9,u,5 connects the channel selected to the 2M bus. The activation process checks that the interface and channel settings are correct.

6,9,u,6 Deactivate Channel Selection 6,9,u,6 deactivates the channel selected.

6,9,u,7 Control Time-out The selection defines the time for the controls to remain valid without being refreshed. The factory setting is 10 min. Control time–out: 0 Display 1,...,65000min.

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25


6,9,u,8 Read/Save All This facility is useful when units are changed. Read/Save all: 0 Display ID 1 Read settings 2 Save settings

Selection 0 displays the program ID. Selection 1 reads the unit settings e.g. when units are changed. Selection 2 saves the previously read settings to a new unit. (Press: 2INV, DATA, RET)

5.5

Channel Settings 6,9,u,2,ch Channel Settings (ch = channel) Channel settings: 0 Display 1 V.28 interface type 2 V.24 circuits 3 Operating mode 4 TS allocations 5 Activate channel 6 Deactivate channel

6,9,u,2,ch,0 Display The selection displays the current interface-specific settings. An example: Display interface 1: type rate mode TS/B1...8 status IF1: Loc. 2400 Syn. TS31/10000000 nA

6,9,u,2,ch,1 V.28 Interface Type V.28 interface type: 0 Display 1 Local

Selection 0 displays the current V.28 interface type. The basic interface type (option 1) complies for its electrical specifications with ITU-T Recommendation V.24/V.28.

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NTC C33374002SE_00

Data Unit Menus

6,9,u,2,ch,2 V.24 Circuits V.24 circuits: 0 Display 1 105 2 106 3 107 4 108 5 109 6 Other

Selection 0 displays the following response: IF1 V.24 Circuits: 105 106 107 off off off

108 off

109 off

6,9,u,2,ch,2,1 Circuit 105 Circuit 105: 0 Display 1 Normal (V.110) 2 Not in use 3 Use for transm. control

Selection 0 in this menu displays the current use of the circuit. Selection 1 sets the use of the circuit to comply with Recommendation V.110. Selection 2 sets the circuit out of use (Forced ON). Selection 3 sets circuit 105 to be used for transmitter control. The ON state of circuit 105 connects the transmitter of the interface to the transmission channel.

6,9,u,2,ch,2,2 Circuit 106 Circuit 106: 0 Display 1 Normal (V.110) 2 Forced OFF 3 Forced ON

Selection 0 displays the current use of the circuit. Selection 1 sets the use of the circuit to comply with ITU-T Recommendation V.110. Selection 2 sets the circuit permanently OFF. Selection 3 sets the circuit permanently ON.

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27



Selection 0 displays the current use of the circuit. Selection 1 sets the use of the circuit to comply with ITU-T Recommendation V.110. Selection 2 sets the circuit permanently OFF. Selection 3 sets the circuit permanently ON.

6,9,u,2,ch,2,4 Circuit 108 Circuit 108: 0 Display 1 Normal (V.110) 2 Not in use

Circuit 108 is used to connect the interface to the transmission channel. Selection 0 displays the current use of the circuit. Selection 1 sets the use of the circuit to comply with ITU-T Recommendation V.110. The ON state of the circuit connects the interface to the transmission channel. Selection 2 sets the circuit out of use (Forced ON). The interface is then permanently connected to the transmission channel.


Selection 0 displays the current use of the circuit. Selection 1 sets the use of the circuit to comply with ITUĆT Recommendation V.110. Selection 2 sets the circuit permanently OFF. Selection 3 sets the circuit permanently ON.

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NTC C33374002SE_00

Data Unit Menus

6,9,u,2,ch,2,6 Other Circuits Other circuits: 0 Display 1 111 2 116 3 125 4 140 5 141 6 142 7 TST2

Selection 0 displays the states of the circuits. An example: IF1 Other circuits: 111 116 125 off off off

140 off

141 off

142 off

TST2 off

The states of incoming circuits 111 and 116 can be read by selections 1 and 2, respectively. The states of outgoing circuits 125 and TST2 can be forced by selections 3 and 7, respectively. Test signals 140 and 141 can be used to control the local loop.

6,9,u,2,ch,2,6,4 Circuit 140 Use for Local Loop The control menu for circuit 140 is the following: Circuit 140 use for local loop: 0 Display 1 In use 2 Not in use

Selection 0 displays whether the circuit is used to control the local loop. Selection 1 sets the circuit to control the local loop. Selection 2 sets the circuit out of use.

6,9,u,2,ch,2,6,5 Circuit 141 Use for Local Loop Circuit 141 use for local loop: 0 Display 1 In use 2 Not in use

Selection 0 displays whether the circuit is used to control the local loop. Selection 1 sets the circuit to control the local loop. Selection 2 sets the circuit out of use. NTC C33374002SE_00


29


6,9,u,2,ch,2,6,6 Circuit 142 The control menu for the test indicator, circuit 142, is the following: Circuit 142: 0 Display 2 Use for LL indicator 3 Forced ON

Selection 0 displays whether the circuit 142 is used for local loop indication. Selection 2 sets the circuit to indicate the local loop. Selection 3 sets the circuit to ON state.

6,9,u,2,ch,3 Operating Mode The operating mode of the interface can be either synchronous or asynchronous. The operating mode will change first after the data rate has been selected. Operating mode: 0 Display 1 Synchronous 2 Asynchronous

6,9,u,2,ch,3,1 Synchronous Mode Synchronous mode: 1 Data rate 2 Tx timing 3 Transfer mode

6,9,u,2,ch,3,1,1 Data Bit Rate for Synchronous Mode Data bit rate: 0 Display 1 600 bit/s 2 1200 bit/s 3 2400 bit/s 4 4800 bit/s 5 9600 bit/s 6 19200 bit/s 7 48 kbit/s 8 56 kbit/s 9 64 kbit/s

Selection 0 displays the selected data bit rate. By selections 1 – 8, the data bit rate selected is adapted to the transmission channel as specified in ITU-T Recommendation V.110.

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Data Unit Menus

Selection 9 sets the adaptation of 64 kbit/s to the transmission channel to be done transparently.

6,9,u,2,ch,3,1,2 Tx Timing Tx timing: 0 Display 1 114 2 113 3 115

Note that circuit 115 is looped back as circuit 113 at the far-end modem or terminal. The use of network-independent clock is not supported. (Use of circuit 113 is available from hardware version CU 24020 02A on). Selection 0 displays the Tx timing circuit. Selection 1 sets circuit 114 for Tx timing. Selection 2 sets circuit 113 for Tx timing. This selection is not available when the data bit rate 64 kbit/s is used. Selection 3 sets circuit 115 for Tx timing. This selection is not available when the data bit rate 64 kbit/s is used.

6,9,u,2,ch,3,1,3 Transfer Mode Transfer mode: 0 Display 1 Duplex point-to-point 2 Simplex tx 3 Simplex rx 4 Point-to-multipoint

Selection 0 displays the transfer mode currently in use. Selection 1 sets the transfer mode as duplex point–to–point. Note

Even if simplex and point-to-multipoint operation modes can be selected, these are not supported.

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6,9,u,2,ch,3,2 Asynchronous Mode Asynchronous mode: 1 Data rate 2 Character length 3 Transfer mode

6,9,u,2,ch,3,2,1 Data Bit Rate for Asynchronous Mode Data bit rate: 0 Display 1 600 bit/s 2 1200 bit/s 3 2400 bit/s 4 4800 bit/s 5 9600 bit/s 6 19200 bit/s

Selection 0 displays the data bit rate. By selections 1 – 6 the data bit rate selected is adapted to the transmission channel as specified in ITU-T Recommendation V.110. When you want to transmit asynchronous data using a bit rate lower than 600 bit/s, set the operating mode to synchronous transfer with 4800 bit/s data bit rate. The transmission is then performed on sampling principle.

6,9,u,2,ch,3,2,2 Character Length for Asynchronous Mode The character length includes the data bits, the start bit, the stop bit and the parity bit, if one is used. Character length: 0 Display 1 8 bits 2 9 bits 3 10 bits 4 11 bits

Selection 0 displays the selected character length. Selections 1 – 4 set the character length to 8–11 bits, respectively.

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Data Unit Menus

6,9,u,2,ch,3,2,3 Transfer Mode for Asynchronous Mode Transfer mode: 0 Display 1 Duplex point-to-point 2 Simplex tx 3 Simplex rx 4 Point-to-multipoint

Selection of transfer mode is done in the same way in the asynchronous mode and in the synchronous mode.

6,9,u,2,ch,4 Time Slot Allocations The time slot is selectable in the range 1 to 31. TS allocation: 0 Display 1 Tx/Rx time slots 2 Tx time slots only 3 Rx time slots only

Selection 0 displays the time slots used by the channel. Selection 1 sets the same time slot for the transmit and receive direction. Selection 2 sets the time slot for the transmit direction only. Selection 3 sets the time slot for the receive direction only. After the time slot selection, a bit mask is required for the time slot selected. Bit mask: give bit mask B1...8

You can write 1, 2, 4, or 8 ones (1) in the bit mask, depending on the transfer capacity required by the channel. An example:

B1...B8 10000000.

Bit B1 is selected from the specified time slot.

6,9,u,2,ch,5 Activate Channel The selection connects the channel selected to the 2M bus. The activation process checks that the channel settings are correct.

6,9,u,2,ch,6 Deactivate Channel The selection deactivates the channel selected.

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33


6,9,u,2,ch,8,mode,bit rate,char len,bitmask,time slot Set Channel Settings (hidden menu branch) Note

These settings are not permanent. The settings are saved only onto the RAM, not on the EEPROM.

The selection sets the channel-specific settings for the unit and activates the channel selected. The settings are interpreted as follows: D

D

Mode: 1 2 Bit rate: 1 2 3 4 5 6

Synchronous Asynchronous 600 1200 2400 4800 9600 19200

D

Char len (Asynchronous character length): 1 9 bits 2 10 bits 3 11 bits

D

Bitmask (1–255) examples: 1 B1–B8: 0000 0001 128 B1–B8: 1000 0000 255 B1–B8: 1111 1111

D

Time slot: 1–31

time slot

6,9,u,2,ch,9 Deactivate Channel (hidden menu branch) Note

This setting is not permanent. The setting is saved only onto the RAM, not on the EEPROM.

The selection deactivates the channel selected.

6,9,u,2,ch,10 Check Channel Activity (hidden menu branch) The selection checks the actual activation status. It responds by Done, if the channel is activated, and by Functional error, if the channel is not activated, queuing for activation, or queuing for deactivation. The returned terminator for Done is CR (Carriage return) and the exception terminator for the Functional error is #.

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NTC C33374002SE_00

Data Unit Menus

5.6

Measurements 7,9,u DIU–19S Measurements DIU–19S Measurements: 1 Supply voltage

7,9,u,1 Voltage Measurements Voltage measurements: 1 +5 V 2 –12 V 3 +12 V

Supply voltage +5 V (–12 V, +12 V): 0 Display voltage 1 Display voltage (float) 2 Calibration

Selections 0 and 1 display the measured +5 V, –12 V or +12 V supply voltage. Selection 2 calibrates the voltage measurement. Give measured supply voltage in mV (without sign)

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35


5.7

Statistics 8,9,u DIU–19S Statistics DIU–19S Statistics: 1 CPU counter 2 Channel frame losses

Selection 8,9,u,1 displays the menu: CPU resets: 0 Display 1 Clear counter

Selection 0 in this menu displays the number of CPU resets that have occurred in the unit since the previous reset. Selection 1 resets the counter. Selection 8,9,u,2,ch displays the following menu: Frame losses detection: 0 Display 1 Clear detector

Selection 0 in this menu shows whether a frame loss has occurred since the previous reset. Selection 1 resets the detector.

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NTC C33374002SE_00

Data Unit Menus

5.8

Testing 9,9,u DIU–19S Testing DIU–19S Testing: 1 Test defaults 2 Channel test 3 Deactivate channel 4 A/D-tests 5 Memory tests 6 Memory operations 7 Diagnostics

Selection 1 sets the default settings for the test. Default settings: type rate IF1: Loc. 4800 IF2: Loc. 4800 IF3: Loc. 9600 IF4: Loc. 19200

mode TS/B1...8 status Syn. TS31/10000000 nA Syn. TS31/01000000 nA Syn. TS31/00110000 nA Syn. TS31/00001111 nA

Selection 2 tests the channel selected at all transmission rates and operating modes. The response obtained should be channel ok. In the event of a fault, the response is channel failed. Selection 3 deactivates all channels. Selection 4 tests the A/D converter. The memory tests (selection 5) are used to locate a possible fault in the RAM, EPROM (or EEPROM). The EEPROM test takes about 10 minutes; during this time the unit cannot receive any commands. Memory operations (selection 6) allow you to read from and save to a specified memory location. The program displays a menu where you can choose from four memory operations: Memory operations: 1 Read byte 2 Write byte in ram 3 Read 8 bytes 4 Write byte in eeprom

After selections 1, 2 and 3 (9,9,u,6,1 or 2 or 3) the program will prompt you to choose the memory address: Give memory address: 0...65535

NTC C33374002SE_00


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If you chose the write option (selection 9,9,u,6,2 ), the program will prompt you to enter the byte value: Give byte value: 0...255

After selection 4 (9,9,u,6,4) the program will prompt you to enter the EEPROM offset: Give eeprom offset: 0...511

The program will then prompt you to enter the byte value: Give byte value: 0...255

Selection 7 (9,9,u,7) displays the fault detected in the course of a diagnostic test.

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NTC C33374002SE_00

C33374_20-DIU19S

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