21206 (C33561.20 B0) User Manual

TU 21206 Channel Unit SUB / SUB 2  400 Ohm, 6 channels User Manual C33561.20 B0

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Copyright Nokia Networks Oy

TU 21206 User Manual

The following products comply with the protection requirements of the European Union Council Directive 89/336/EEC relating to electromagnetic compatibility (EMC), provided that installed using EMC-compatible installationpractices (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 Telecommunications user manuals): manuals): Product code

Product name

Release

TU 21206

Channel unit SUB / SUB, 2  400 Ohm, 6 channels

03A

COPYRIGHT Nokia Networks Oy 2001 All rights reserved. E

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 Networks 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 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 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 is a registered trademark of Nokia Corporation. DYNANET is a trademark of Nokia Networks Oy. Any other trademarks mentioned in the documents are the property of their respective owners.

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The following products comply with the protection requirements of the European Union Council Directive 89/336/EEC relating to electromagnetic compatibility (EMC), provided that installed using EMC-compatible installationpractices (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 Telecommunications user manuals): manuals): Product code

Product name

Release

TU 21206

Channel unit SUB / SUB, 2  400 Ohm, 6 channels

03A


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 Networks 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 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 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 is a registered trademark of Nokia Corporation. DYNANET is a trademark of Nokia Networks Oy. Any other trademarks mentioned in the documents are the property of their respective owners.

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Document History Document

Date

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24 Jan 2000

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30 Ap Apr 20 2001

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New ha hardware ad adapted.


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Contents

1

Product Description

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Installation

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Commissioning and Maintenance

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Service Menu Reference Software version 01B

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Criterion Table Software version 01B

S10002883RE_00

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Glossary

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TU 21206 Channel Unit SUB / SUB 2  400 Ohm, 6 channels Product Description

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TU 21206 Product Description


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 Networks 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 is a registered trademark of Nokia Corporation. DYNANET is a trademark of Nokia Networks Oy. Any other trademarks mentioned in the documents are the property of their respective owners.

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Date

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24 Jan 2000

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30 Apr 2001

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Contents

Chapter 1 About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 1

Chapter 2 Introduction to SUB / SUB unit . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Chapter 3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

Chapter 4 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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About this document

Chapter 1 About this document

This document gives a detailed description of Channel Unit SUB / SUB (Subscriber unit / Subscriber end). In this document, the unit will be referred to as the SUB / SUB. The following topics are covered: D D D

overview of the SUB / SUB unit key features technical specifications.

SUB / SUB units cannot function on their own and, therefore, they are always a part of a larger system. SUB / SUB units are always operated and controlled by the main unit of DM 2 or DM 2+. In this document, both equipment are referred to as DM 2.

Related documents DM 2 is described in detail in the DM 2-MUX Operating Handbook and DM 2+ is described in detail in the DM 2+ Operating Manual. For information on mechanical structures and power supplies, please refer to their own manuals. The Glossary of this manual lists the abbreviations and some terms used in this document.

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Introduction to SUB / SUB unit

Chapter 2 Introduction to SUB / SUB unit

Channel Unit SUB / SUB belongs to the DYNANET family of equipment. SUB / SUB refers to the subscriber interface end of the transmission path (as opposed to the exchange end). The unit simulates the functions of an exchange to the subscriber and controls the functions for the exchange signalling. SUB / SUB units can be used in the following applications: D

D

in ordinary telephone networks S

to connect subscribers to a digital exchange directly at the 2048 kbit/s interface (see Figure 1)

S

to connect subscribers to an analogue exchange via a SUB / EXCH unit (see Figure 2)

in hot line applications (see Figure 3).

SUB / SUB interface SUB

M U X

2048 kbit/s

SUB

Digital exchange

Figure 1

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SUB / SUB connecting subscribers to a digital exchange

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If subscribers are connected to an analogue exchange, the unit is always used with a SUB / EXCH unit, which is installed at the exchange end of the transmission path.

SUB / EXCH interface

SUB / SUB interface

EXCH

SUB

M U X

2048 kbit/s

M U X

EXCH

SUB

Analogue exchange

Figure 2

SUB / SUB connecting subscribers to an analogue exchange

In a hot line application, a SUB / SUB unit is needed at both ends of the connection. The hot line is activated with a menu command.

SUB / SUB interface

SUB / SUB interface

SUB

SUB

M U X

SUB

Figure 3

4

2048 kbit/s

M U X SUB

Use of SUB / SUB unit in a hot line application

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Features

Chapter 3 Features

General features D D D D D D D D D D D

D

constant resistance type 2 400 ohm six two-wire speech channels impulse / DTMF dialling ground key detection loop detection polarity reversal forwarding of the ringing to the subscriber metering signal (12 kHz) protection against hazardous voltages (mains voltages and residual voltages due to lightning) by a protection circuitry Loop Start signalling protocol installation into: S CEPT A type mechanical structures S 19Ȃ mechanical structures, for example DYNANET subrack compliance with ITU-T Recommendations G.712, G.713 and Q.552.

The unit has the ability to key the ringing signal. As this is the most efficient mode of operation for minimal power dissipation, it is recommended to configure the ring generator for keyed operation if the following conditions are met: D

the ring generator used and the other channel units configured in the same subrack support keyed operation

D

each subrack has its own ring generator.

If several subracks or cartridges share a ring generator, using the same rack bus, set the ring generator for continuous operation. This is necessary because the control signal to key the generator is local to the subrack backplane and it is not passed on to the rack bus.

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Voltages D

D D

D D

The unit generates the +5 V and –5 V supplies required for internal functions from the central battery voltage (–20 to –72 V). The unit receives the central battery voltage through its back connector and the subrack backplane. DC-loop current supply is connected to the speech lines. The subscriber line circuitry runs from a separate signalling voltage supply (nominal –48 V "15%). If the line is short, the unit automatically chooses a lower signalling voltage (–36 V) if such a voltage is available in the subrack. The ringing voltage is brought to the unit from the ring generator or from the subrack pins. The ringing voltage is switched to the speech lines through 2  400 W. Using a jumper connection, the ringing voltage can be configured for: S ringing about ground S ringing about the signalling voltage (see Installation section for full details).

Interfaces D

D D

The connectors for the subscriber interfaces are on the front panel of the unit. The pinout for the front connector is given in the Installation document of this manual. The unit receives the power supply and communicates with the equipment through the back connector and subrack backplane. The unit is automatically grounded to the subrack body and connected to the rack alarms through the back connector and subrack backplane.

Settings for the unit D

D D

Management of the unit, including settings, is done through the service interface of the DM 2-MUX. For more information on management principles, please refer to DM 2-MUX Operating Handbook or DM 2+ Operating Manual. All channel settings are retained when the channels are out of use. The following settings can be set separately for each channel: S channel usage S channel time slots 1 to 15 and 17 to 31 S level setting range (can be set in 0.5 dB steps): Tx direction –6 to +6 dBr; default level 0 dBr Rx direction –12 to +0 dBr; default level –7 dBr S balance impedance S channel blocking S signalling mode (normal or hot line).

The line impedance is chosen by a jumper setting. For details, see the Installation document.

Troubleshooting features D D

6

indication of alarms through the front panel LEDs voltage supervision and further information on some alarm conditions through the service interface on the main unit.

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Technical specifications

Chapter 4 Technical specifications

Voice frequency Voice frequency Interface

ITU-T G.712, G.713 and Q.552

Connector

Euro, 16 + 32 pin

Number of channels

6

Nominal levels

Rx: – 7 dBr Tx: 0 dBr

Current feed

40 mA (44 mA max)

DC feed

2 x 400 ohm

Longitudinal balance loss

 46 dB

Return loss

> 18 dB at 200 Hz to 4 kHz

Balance impedance when nominal impedance is: D

600 ohm

600 ohm 390 ohm + (620 ohm // 100 nF) 270 ohm + (1200 ohm // 120 nF)

D

270 ohm +750 ohm //150 nF (ETSI)

270 + (750 ohm //150 nF) 390 ohm + (620 ohm // 100 nF) 270 ohm + (1200 ohm // 120 nF)

Metering Nominal amplitude, terminated at 200 ohms

>1.5 VRMS

Frequency

12 kHz "60 Hz

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Voltages Voltages Battery

– 72 to – 20 V

Signalling (B1)

– 48 V nom. reference to GND ( – 58 to – 43 V)

Signalling (B2; optional)

– 36 V nom. reference to GND ( – 43 to – 30 V)

Auxiliary 5 V

5 V ±5%

Ringing

75 VRMS nom. at 25 Hz (60 to 90 VRMS)

Power consumption Power consumption Battery supply (at – 48 V)

2.4 W

Signalling supply (at – 48 V)

1.1 W 10 W 4.4 W 1.7 W

All channels on-hook All channels off-hook, 330 W loop All channels off-hook, 2200 W loop All channels in ringing state *

* this figure does not include the ringing signal power, which is provided by the ring generator unit

Dimensions and weight Dimensions and weight Height

233 mm (6 U)

Width

25 mm (5 T)

Depth

160 mm

Weight

290 g

Environmental specifications The environmental specifications of DM 2-MUX or DM 2+ apply also for the SUB / SUB unit. Please refer to the DM 2-MUX Operating Handbook or DM 2+ Operating Manual.

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TU 21206 Channel Unit SUB / SUB 2  400 Ohm, 6 channels Installation

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TU 21206 Installation



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Contents


1 1

Chapter 2 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Chapter 3 Work order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

Chapter 4 Checking mechanical installation and power supply . . . . . . . . . .

7

4.1

Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

4.2

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Signalling voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using central battery voltage as signalling voltage . . . . . . . . . . . . Ring trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 8 8 8

Chapter 5 Connecting jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11

5.1

Ringing voltage reference configuration . . . . . . . . . . . . . . . . . . . . .

12

5.2

Line impedance configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13

Chapter 6 Connecting cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

6.1

Cabling example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

6.2

Specifying cable connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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About this document


This document gives the instructions on installation and cabling of Channel Unit SUB / SUB (Subscriber unit / Subscriber end). In this document, the unit will be referred to as the SUB / SUB. The following topics are covered: D D D D D

Precautions (Chapter 2) Work order (Chapter 3) Checking power supply and mechanical installation (Chapter 4) Connecting jumpers (Chapter 5) Connecting cables (Chapter 6).

SUB / SUB units cannot function on their own and, therefore, they are always installed as a part of a larger system. SUB / SUB units are always operated and controlled by the main unit of DM 2 or DM 2+. In this document, both equipment are referred to as DM 2. If the SUB / SUB unit is to be installed in a subrack that has already been set up correctly (for instance, as a replacement to a faulty SUB / SUB unit), it is only necessary to ensure that the configuration jumpers for the ringing voltage and line impedance settings are correctly positioned (see Chapter 5). No other hardware configuration will be necessary.

Related documents In addition to this document, you may find the following documentation useful:

Document

Information

Product Description of this manual

Technical specifications of SUB / SUB unit for installation planning

DM 2-MUX Operating Handbook Technical specifications of DM 2 equipment for or DM 2+ Operating Manual installation planning; installation requirements Installation manual of the subrack

General cabling instructions

Manual of the power supply unit

Power supply configuration for the subrack

Ring Generator Operating Instructions

Ring generator configuration

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Precautions

Chapter 2 Precautions

Caution Take standard anti-static precautions (such as a wrist strap earthed to the subrack) when handling the SUB / SUB unit, as it contains components which may be damaged by static discharge.

Caution Set the jumpers on the SUB / SUB unit before installing the unit into a subrack. It is possible to cause damage to the SUB / SUB unit if the jumper settings are not correct.

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Work order

Chapter 3 Work order

Before starting the installation, read also the Installation document in the DM 2-MUX 2-MUX Operating Operating Handbook or DM 2+ Operating Manual to find out the general installation requirements. Install Insta ll the SUB SUB / SUB unit unit in the followin following g order: order: 1. 2. 3. 4. 5.

Make sure that the the subrac subrack k or cartr cartridge idge has been corre correctly ctly insta installed lled and that the appropriate voltages have been connected to the subrack (see Chapter 4). Conne Con nect ct the the jumper jumper sett setting ingss on the the SUB / SUB SUB unit unit (see (see Chapt Chapter er 5). 5). Plug Plu g the the SUB SUB / SUB SUB unit unit int into o the the subra subrack ck or cart cartrid ridge. ge. Conne Con nect ct and and identi identify fy the the signa signall cable cabless (see (see Chap Chapter ter 6). 6). Specify Spec ify the the cable cable conne connection ctionss and and jumper jumper settin settings gs on on the the marking marking card (see Chapter 6).

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Checking mechanical installation and power supply

Chapter 4 Checking mechanical installation and power supply

This chapter lists the preliminary inspections you should make on mechanical installation and power supply before starting to set up a new DM 2 system that includes SUB / SUB units. If you are installing the unit as a replacement to a faulty f aulty SUB / SUB unit, unit, you can skip skip this chapter chapter and continu continuee from Chapter Chapter 5.

4.1

Mechanical instal alllat atiion The SUB / SUB unit can be installed into CEPT A type or 19 Ȃ mechanical structures struc tures,, in any unit loc location ation.. The dimensions dimensions of of the SUB / SUB unit are are 6U high by 5T wide. If you are setting setting up a complet completely ely new DM 2 system system that that contains contains SUB SUB / SUB units, check the following:

4.2

D

Make sure that the subrack into which you are installing the units is undamaged.

D

Make sure that the subrack or cartridge has been correctly installed (for subrack installation, please refer to the subrack ’s own installation manual).

D

Make sure that the main unit has been installed correctly (for instructions, please refer to DM 2-MUX Operating Handbook or DM 2+ Operating Manual).

Power supply If you are setting setting up a complet completely ely new DM 2 system system that that contains contains SUB SUB / SUB units, check the following: D

Make sure that the rack has been properly earthed.

D

If you want to use other kinds of channel units in the same setup as the SUB / SUB unit, make make sure that that the units are compati compatible ble with each each other in the area of voltage requirements.

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D

Make sure that the following supplies are available in the subrack: S S

S

battery voltage: –20 to –72 V signalling voltage B1: –43 to –58 V (nominally –48 V) with reference to ground B2: –30 to –43 V with reference to ground ringing voltage: approximately 75 V, 25 Hz.

The ringing voltage can be generated in a ring generator within the subrack or it can be brought to the subrack from a central ringing source that is shared between several DM 2 setups. The voltage voltagess are delivere delivered d to the SUB / SUB unit unit via the unit unit’’s back connector, PB1. The unit connects automatically to the voltages and to the subrack ground when it is plugged in the subrack.

Signalling voltages B1 is the signalling voltage which generates the current for subscriber loop. In the unit TU 21206 the signalling voltage is –48 V (– (–58 to –43 V). The B2 signalling voltage –36 V (– (–43 to –30 V) is optional and it i t is not necessary for operation of the unit. If the B2 signalling voltage is connected, the unit automatically selects the lower signalling voltage for short subscriber lines. In this case the power dissipation in the unit is lower. No separate signalling voltage is needed if the central battery voltage is in the range of – of –43 to –58 V. The positive pole of the battery voltage and the positive pole of the signalling voltage must be connected to the subrack body even if the signalling voltage is brought from outside of the system.

Using central battery voltage as signalling voltage Normally the central battery voltage is –48 V whereupon it can be used as signalling voltage. In this case VNB (negative pole of the central battery voltage) and signalling voltage B1 are connected together. together. Because the ground of the signalling voltage is connected in the unit to unit ’s ground and further to the subrack ’s body, the positive pole of the signalling voltage source must be connected to the earthing of the rack/subrack. You should also take this into account when you use the central battery voltage as signalling voltage.

Ring trip Ring trip detection is provided by connecting the signalling voltage in series with the ringing voltage. Detection takes place as DC current detection. The ringing voltage can be connected in two t wo different ways: D

8

Ringing with reference to negative (-) voltage (default) S Jumper settings: TU 21206 NR4=RG_ref=GND S Ringing voltage RG1 of ring generator is connected to signalling voltage B1 (– (–48 V).

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Checking mechanical installation and power supply

D

Ringing with reference to positive (+) voltage S Jumper settings: TU 21206 NR4=RG_ref=B1 S Ringing voltage RG1 of ring generator is connected to ground (GND). (This jumper setting is possible to do in the ring generator of version 08A or newer.)

Note All TU 21206 units fed by the same ring ri ng generator must have the jumper setting NR4 connected.

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Connecting jumpers

Chapter 5 Connecting jumpers

Caution Take standard anti-static precautions (such as a wrist strap earthed to the subrack) when handling the SUB / SUB unit, as it contains components which may be damaged by static discharge.

Caution Set the jumpers on the SUB / SUB unit before installing the unit into a subrack. It is possible to cause damage to the SUB / SUB unit if the jumper settings are not correct. The following jumpers have to be connected on the SUB / SUB unit: D

NR4 for ringing voltage reference (affects all channels) S ringing about ground S ringing about signalling voltage

D

NR1, NR2, NR3 for line impedance (separately for each channel) S 600 W S 270 W + (750 W // 150 nF).

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5.1

Ringing voltage reference configuration You may configure SUB / SUB units to use a ringing voltage about rack ground or about the signalling voltage (–48 V nominal). To configure the ringing voltage reference, do the following: D

On the SUB / SUB unit, configure jumper NR4. The setting affects all channels.

D

On the power supply unit, configure the ringing voltage reference line (RG1).

Note The RG1 connection at the power supply configures RG1 for all subracks or cartridges supplied by that power supply. Figure 1 shows a summary of the hardware configurations for the ringing voltage reference setup.

SUB / SUB NR4

Back connector PB1

123 ALARM LEDS A B D

Subscriber line connector P1

Ringing about

NR4 position on SUB / SUB

Signalling voltage Ground

Figure 1

2-3 (RG_ref = GND) 1-2 (RG_ref B1)

RG1 connection at power supply B1 Ground

Ringing voltage reference hardware configurations

If NR4 is set up incorrectly for the ringing signal connected to the SUB / SUB unit, then premature ring trip may occur. For this reason you should take care when using a mix of compatible channel units in a DM 2 setup. All the units should be capable of working with a ringing signal referenced about the same voltage and the ringing signal should be configured accordingly.

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Connecting jumpers

5.2

Line impedance configuration Connect all line impedance jumpers for one channel in the same way. The default setting for the jumpers is 600 W.

Note Remember to configure the line impedance setting also in the settings menu. Figure 2 shows the principle of configuring the line impedance jumpers.

SUB / SUB

NR1 NR2

Back connector PB1

NR3 D

ALARM LEDS A B D

E F G

Subscriber line connector P1

H J

Channels:

270 ohm + (750 ohm // 150 nF):

D = Channel 1

600 ohm (default):

E = Channel 2 F = Channel 3

123

123

G = Channel 4 H = Channel 5 J = Channel 6

Figure 2

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Jumpers for line impedances

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Connecting cables

Chapter 6 Connecting cables

This chapter specifies the cables and connectors for the SUB / SUB unit and gives an example on how to connect the cables. All operational connections are wired at the unit’s front connectors. The back connector is used for equipment power supply and internal bus interfaces, and it requires no cabling at the installation stage. Figure 3 shows the pinout of the front connector.

Signal Direction Use

Ch

Pa1

speech

1

Pa2

speech

2

Pa3

speech

3

Pa4

speech

4

Pa5

speech

5

Pa6

speech

6

P1 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

Ch Use 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

A-wire signals

Figure 3

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Direction Signal

1

speech

Pb1

2

speech

Pb2

3

speech

Pb3

4

speech

Pb4

5

speech

Pb5

6

speech

Pb6

B-wire signals

SUB / SUB unit TU 21206, front connector (P1)

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6.1

Cabling example Cable and connector Cable

MMHS 8 x 2 x 0.4 + 0.4 mm, product code TI 22701.42

Connector

16 + 32-pin Euroconnector, product code TX 21474

A cabling example is given in Table 1. For EMC cabling practices, refer to the manual of the subrack or cartridge used.

LINE INTERFACES

CABLE

PINS

SYMBOL

NUMBER

USE

PAIR

COLOUR

a27 c27

Pa1 Pb1

1

Speech

1

blue white/blue

a21 c21

Pa2 Pb2

2

Speech

2

orange white/orange

a15 c15

Pa3 Pb3

3

Speech

3

green white/green

a09 c09

Pa4 Pb4

4

Speech

4

brown white/brown

a03 c03

Pa5 Pb5

5

Speech

5

grey white/grey

a01 c01

Pa6 Pb6

6

Speech

6

blue black/blue

7

orange black/orange

8

green black/green

Table 1

16

CHANNEL

Cabling example for connector P1

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Connecting cables

6.2

Specifying cable connections Mark the cables so that it is possible to see to which unit and connector they lead. Record the information about the cable connections and jumper settings on the marking card delivered with the unit. Figure 4 shows the main principles of the use of marking cards. Instructions concerning the markings can be found in the subrack ’s installation document. When properly filled in, the card also facilitates later servicing, testing and installation.

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SUB/SUB TU21206 Unit location:

3

Equipment ID: Address: Cable identification:

Identify here how the cable is connected at the SUB end.

Other end

This end

1 B 2 S 3 P1

SUB/SUB TU21206

Identify here where the other end of the cable is connected.

1 B 2 S 3 P1 Write this down on the wire label.

Key to marking: 1

Rack row

B

Rack location in the row

2

Subrack location (bottom edge of the subrack)

S

Subrack shelf (R = cables from above, S = cables from below into subrack)

3

Unit location

P1 Connector’s identification

Ch1 27 a

b

Ch2 21 a

b

Ch3 15 a

b

Ch4 9 a

b

Ch5 3 a

b

Ch6 1 a

Figure 4

18

a c

b

Marking card for the SUB / SUB unit, TU 21206

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C33561003SE_A0

TU 21206 Channel Unit SUB / SUB 2  400 Ohm, 6 channels Commissioning and Maintenance

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TU 21206 Commissioning and Maintenance



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C33561004SE_A0


Date

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24 Jan 2000

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30 Apr 2001

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Comment

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Contents


1 1

Chapter 2 Accessing and controlling SUB / SUB . . . . . . . . . . . . . . . . . . . . . .

3

Chapter 3 Commissioning SUB / SUB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

3.1 3.1.1 3.1.2

Replacing a damaged unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Restoration of settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No restoration of settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 6 6

3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6

Commissioning units in a new DM 2 system . . . . . . . . . . . . . . . . . . Configuring units in a DM 2 setup . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting unit settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Configuring interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Checking the operational condition . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 6 7 8 8 9 10

Chapter 4 Locating faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11

4.1

Rack alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11

4.2

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

4.3

State and fault messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

4.4

Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14

4.5

Performance measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14

4.6

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

14

4.7

Frequently asked questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

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About this document


This document describes the procedures for commissioning and maintenance of Channel Unit SUB / SUB (Subscriber unit / Subscriber end). The following topics are covered: D D D

Accessing and controlling the unit (Chapter 2) Commissioning of the unit (Chapter 3) Locating faults (Chapter 4).

Related documents In addition to this document, you may find the following documentation useful:

Document

Information

Product Description of this manual

Overall functioning and features of the unit.

Service Menu Reference of this manual Service menus used for configuring the software and for managing the unit. Glossary of this manual

Explanation of abbreviations and some terms used in this manual.

DM 2-MUX Operating Handbook or DM 2+ Operating Manual

Configuring and commissioning of a DM 2 system.

Service Terminal TC 21700 Operating Manual

Information on how to use the Service Terminal.

Macro STE User’s Manual

Information on how to use the Macro STE.

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C33561004SE_A0

Accessing and controlling SUB / SUB

Chapter 2 Accessing and controlling SUB / SUB

All software-configurable parameters for the unit are accessed via the service interface of the main unit of DM 2-MUX or DM 2+. The main unit provides the menus related to the common parts of the equipment, and the SUB / SUB unit provides menus relating to its own operation. The SUB / SUB units are accessed and controlled using a Service Terminal or Macro STE (Service Terminal Emulator).

To access the SUB / SUB unit D

Connect, with an interface cable, the Service Terminal to the main unit ’s service interface connector. If you are using the Macro STE, connect your PC to the PC interface connector.

D

Switch on the Service Terminal or start the Macro STE. After a few seconds, the top level menu that is common to all equipment is displayed.

D

Establish a direct connection to DM 2: OBJ 7 RET. After a while, the main menu of DM 2 appears on the screen.

D

Choose the type of function you want to access (for example, Settings) in the main menu.

D

Choose number 9 in the subsequent menu.

D

Choose the unit by typing in the number of unit slot in the subrack. The subrack slot numbering starts from the left of the subrack.

If the selected unit slot is empty or houses a MUX unit instead of a SUB unit, you will get the following response: No tributary unit in this location

If a unit has been taken out from the subrack and the equipment configuration has not yet been modified with a software command, the response below will be given. You will get the same response also if the selected unit location contains an inoperative unit.

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Missing unit in this unit location

After you have selected the unit, the SUB / SUB menu for the type of function selected (for example, Settings) appears on the screen. Configuration dependent entities in the command strings are represented by abbreviations (listed in Service Menu Reference of this manual). You will have to replace the abbreviation by a proper value when keying in the command.

Note If the Service Terminal is left unused, it will disconnect and switch off automatically after a specified time-out has elapsed (the default time-out is 10 minutes).

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C33561004SE_A0

Commissioning SUB / SUB

Chapter 3 Commissioning SUB / SUB The following describes the steps necessary for commissioning a SUB / SUB unit for normal operation in a DM 2 system. This chapter deals only with the software configurable parameters and is divided into the following sections: D

D

commissioning procedure for replacing a damaged unit S with the settings of the old unit restored to the new unit S without restoring the settings of the old unit to the new unit commissioning procedure for configuring a unit in a new DM 2 system.

Before configuring the software, make sure that the jumper settings for ringing voltage reference and line impedances have been set correctly (see Installation in this manual). If you request the commissioning of a unit that is already in the commissioned state, then its current configuration is copied to the next unit in the cartridge. This allows the configuration back-up of the unit to be kept up-to-date if changes are made to its settings.

Note Commission a configured unit only when all of its channels are idle. The commissioning process will terminate any calls that are currently in progress.

3.1

Replacing a damaged unit There are two alternative ways to do the replacement depending on whether you want to restore the settings of the old unit to the new unit or not.

Note Remove only one unit at a time. When a new unit is inserted in the subrack, back-up copies are exchanged between the units next to each other. To make sure that this is done successfully, let the equipment stabilise for about 2 minutes before changing the next unit.

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3.1.1

Restoration of settings When this procedure is used, the new unit will have the same settings as the old one. This procedure can be used only if the Hardware ID of the new unit is the same as the one of the old unit. 1. 2.

3.1.2

Disconnect the signal cables and pull out the damaged unit from the subrack. Insert the new unit in the same unit slot and connect the signal cables.

No restoration of settings When this procedure is used, the new unit will have all settings at their default values. 1. 2. 3. 4. 5. 6.

3.2

Remove the old unit from the configuration using the Remove unit command (6,2,2,u; u = number of unit slot in subrack). Disconnect the signal cables from the damaged unit and pull out the unit from the subrack. Insert the new unit in the subrack. Issue the Add unit command (6,2,1,u; u = number of unit slot in subrack). Connect the signal cables. Make sure that the new unit works as intended.

Commissioning units in a new DM 2 system The commissioning procedure consists of the following steps: 1. 2. 3. 4. 5. 6.

Configure the units in the DM 2 setup by the Install all units command. Set default settings. Set identifications. Set unit settings. Configure interfaces. Make sure that the new unit works as intended.

Note If you add a new channel unit to a partially complete DM 2 system which is currently in use, configure the unit using the Add unit command (6,2,1,u ) rather than the Install all units command (6,2,3). Install all units command will terminate all calls currently present on the existing units.

3.2.1

Configuring units in a DM 2 setup To configure all units in a DM 2 setup, enter: TOP

6,2,3 RET

Install all units

To verify that the SUB units are configured, enter: TOP

6

6,2,0 RET

Display

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C33561004SE_A0


To check that no errors were encountered while installing the new units, enter: TOP

1 RET

Fault display

If the fault display indicates a SUB / SUB power supply fault, check the following points: D D

3.2.2

Is the SUB / SUB unit correctly installed into the cartridge or subrack? Are the connections for the voltages and grounding correct?

Setting default settings If you have installed the unit with the 6,2,3 Install all units or 6,2,1 Add unit command, default settings for that type of unit should already be in use. If, however, you make a mistake during reconfiguration of the unit and start the configuration process again, you can restore the default settings for the unit using the Set default settings command, 6,9,u,1,1. You can display all current parameters using the Display settings option, 6,9,u,0. Commissioning the unit requires setting of some parameters. Many of the parameters are channel-specific, and many have default values (factory set), which may already be acceptable to you. The default settings are listed in Table 1.

Parameter

Default setting

Voltage supervision

Enabled for all three supervised voltages (signalling, – 5 V and ringing)

Channel use

All channels out of use

Time slots

Time slots set to 1 to 6 (for channels 1 to 6)

Wire levels for all channels

– 7.0 dBr in the receive and +0.0 dBr in transmit direction

2-wire balance impedance group for all channels

Set to group 1: 600, 600

Channel blocking

Disabled for all channels

Signalling mode

Set to Normal for all channels

Metering use


Fault consequences: Channel-associated AIS in signalling

Causes a B-alarm

Blocking

Causes a B-alarm

Analog line state when block/ Open fault Time-out period for controls

Set to No time-out

User-defined balance impedance coefficients

Set to impedance group number 1

Table 1

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3.2.3

Setting identifications To help you in managing the unit, you can set an identifier for the unit. The other identifications are fixed and can only be displayed. The identifier can be up to 15 characters long. Usually, it describes either the location or function of the unit. To display the identifier, enter: TOP

4,9,u,2 RET

To modify the identifier, enter: TOP

4,9,u,7,2,1 RET

Note When entering IDs using the Service Terminal, the alphabetic characters have to be entered as hexadecimal integers, terminated by the ASCII key (characters from A to F may, however, be entered as INV 1...6). Spaces are not accepted but may be substituted by underline characters. For further details and hexadecimal codes, refer to TC 21700 Service Terminal, Operating Handbook .

3.2.4

Setting unit settings Voltage supervision The unit supervises three voltages on the board: D D D

signalling voltage (–48 V) –5 V ringing voltage (75 VAC).

Each of these individual voltages can be set supervised. To set voltage supervision ON or OFF for the channels, enter: TOP

6,9,u,2 RET

If supervision is enabled, a Power supply fault alarm will be generated if a supervised voltage exceeds its specified range. We recommend that supervision is enabled for all three voltages, as this will allow rapid detection of faults such as a failure in the ring generator. The measurement circuitry for these voltages is calibrated at the factory, but if necessary, this calibration can be redone using the Voltages option (7,9,u,1). It is not likely that the unit will require re-calibration, unless you have accidentally altered the calibration values.

Fault consequences To specify the consequences of some fault conditions, enter: TOP

8

6,9,u,4 RET

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This option sets the consequences of AIS or blocking. You can set the events to cause a B-alarm, or no alarm. Additionally, you can set blocking to leave the subscriber line in either the ‘Open’ state, or with reversed polarity feed applied.

3.2.5

Configuring interfaces Each SUB / SUB unit can be configured either separately or by copying the settings from another SUB / SUB unit. The settings can be entered separately for each channel.

Wire levels To set the wire levels, enter: TOP

6,9,u,3,3 RET

This option sets the relative voice level on the subscriber interface lines.

2-wire balance impedance To select a balance impedance most suitable for the speech wire interface, enter: TOP

6,9,u,3,5 RET

This option sets the 2-wire balance impedance group for individual channels. The 2-wire balance impedance should be selected for the closest match with the impedance of the line plus terminating equipment connected to a channel.

Signalling mode To set the subscriber line signalling to use either normal (back-to-back) or hot line protocol, enter: TOP

6,9,u,3,7,ch, RET

Metering use To set metering ON on a subscriber line, enter: TOP

6,9,u,3,8,ch, RET

Time slots for channels To allocate time slots to channels, enter: TOP

6,9,u,3,1, ch,3 RET

You can allocate any time slot 1 – 15 or 17 – 31 to any channel. However, you may find it convenient to allocate channels to units in consecutive groups of six. Allocate consecutive time slots using the All channels option (6,9,u,3,3,11) in the Select channel menu. Time slot 16 is used for signalling, and it will be skipped automatically if you use the All channels option.

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Channel use Each channel of the unit can be set into use or out of use. The channel settings are retained also when the channels are out of use. To set channels in use or out of use, enter: TOP

6,9,u,3,1,ch RET

Channel blocking Blocking can be used to take a line out of use temporarily, without affecting the other parameters of the channel. To block a channel, enter: TOP

3.2.6

6,9,u,3,6,ch RET

Checking the operational condition Check operation By connecting the 2-wire interfaces, make sure that the SUB / SUB unit is working as intended.

Check fault indications Check that the red and yellow LED both on the DM 2 main unit and on the SUB unit are OFF. The service LEDs indicate the following conditions:

Fault indications RED

Serious fault impairing the function of the equipment

YELLOW

Exceptional condition in the equipment or unit, for example, a loopback or other service function

GREEN

Equipment or unit is accessed via a Service Terminal

Check the fault display for possible fault conditions. The fault display shows faults in all units controlled by the DM 2 main unit. In t he case of a fault, it shows the faulty unit’s ID, fault status and fault data. To display faults, enter TOP

1 RET

If no faults have occurred, the response is: *DM2 (OK)

(where DM2 is the identifier of the main unit)

If a fault has been detected by the main unit: S S

10

check the equipment configuration look for possible causes, for example, loopbacks set on.

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Locating faults

Chapter 4 Locating faults

The SUB / SUB units do not require scheduled maintenance. Maintenance actions are necessary only when a fault is indicated by means of an alarm. This chapter lists some features that may be useful in f inding out a cause of a fault in the operation of the SUB / SUB unit.

4.1

Rack alarms The different alarm classes are: A

Prompt alarm

Generated by a fault which inhibits the normal operation of the equipment. An A-alarm is always generated only by the equipment that has actually detected the fault (AIS or far-end alarm is sent to the other parts of the system as an indication of an already detected fault). Immediate actions are usually required to return the equipment back to normal operational state. B

Deferred alarm

The equipment is still operational but the quality of the services provided has degenerated. D

Reminder of an alarm

In a fault situation, rack alarms A and B can be removed by giving the Local alarm cancel command. As a result, rack alarm D is given to remind of the cancelled alarm(s). When the fault has been repaired, the alarm indication functions are restored to normal state by selecting Reset local cancel command. S

Service alarm

An S-alarm is generated when the equipment in the far end sends a far-end alarm or an alarm indication signal (AIS) is received. An S-alarm is also given when the main transmission channel is not available. Thus, the S-alarm provides information on the state of both transmission directions. The difference between S- and A-alarms is that the S-alarm indicates a serious fault in the operation of the main transmission path, whereas the A-alarm indicates C33561004SE_A0

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faults on a certain channel (or channels), while other channels (services) may still be operating normally.

4.2

LEDs The LEDs on the front of the unit provide some indication as to current activity of the unit, or the type of fault, if one is present. The red LED indicates either that the unit has not yet been configured into the DM 2 system or that a serious fault has occurred in the unit. If the LED is indicating that the unit is not configured, the fault display does not indicate any fault. The yellow service LED indicates faults in the signal received by the unit, power supply faults, or service conditions, such as loopback or blocking. The unit itself is not usually at fault if the yellow LED is lit, as this alarm generally indicates either a user-initiated service condition, or a fault in far-end equipment or cabling. The green service LED is lit when the unit is accessed by the Service Terminal.

4.3

State and fault messages The state and fault messages of the equipment obtained through the service menu option 1 Fault display are described below. The rack alarm/service LED indication in each situation is also given.

Fault code

Defect or fault condition

Rack

Service

alarm

LED

HEX

DEC

00

000

Power supply fault

A

yellow

14

020

Channel blocked

B*

yellow*

16

022

Loop to equipment

A

yellow

17

023

Test mode

B

yellow

4A

074

AIS TS16/ Exch. blocking

B*

yellow*

80

128

Equipment fault

A

red

8E

142

Installation error

A

red

95

149

Forced indication

B

red * yellow* green*

–

–

Unit not installed

–

red

–

–

Unit accessed via service interface

–

green

*= indication optional

Table 2

12

Indication of fault conditions

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C33561004SE_A0

Locating faults

Power supply fault One or more of the supervised voltages (signalling, –5 V or ringing) has exceeded its specified range. Possible causes of this alarm are: D D D D

failure of external signalling voltage supply partial failure of unit power supply failure of ring generator measuring circuitry out of calibration.

Channel blocked One or more channels in the unit has been blocked from use via the service interface or the unit is trying to use a time slot that is currently in use in another unit.

Loop to equipment A loopback has been set up on one or more channels in the unit.

Note A loopback will disconnect the traffic for a channel on which it is active.

Test mode The unit has been put into one of the production test states, and thus cannot function normally.

AIS in TS 16 There is a fault external to the unit on the digital signal path or blocking has been applied from the exchange on a time slot allocated to the unit.

Equipment fault A major failure of the unit. Faults such as EEPROM memory failure and unit power supply failure are indicated by this alarm. If an equipment fault is registered, it is probable that the unit will need to be replaced with a new one.

Installation error The software version is incompatible with the hardware. The alarm is issued: D D

when two units have accidentally been inserted in each other ’s slots in the subrack in the unusual circumstance when a new version of software is installed on an old version of hardware which it cannot control correctly.

Forced indication One or more of the LEDs of the equipment have been set in a forced state (Forced ON or OFF), and they are therefore unable to provide normal indication of alarms or conditions until the forced state is removed.

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Unit not installed The unit has not been configured into the DM 2 setup. This condition does not generate any alarm, but does cause the red LED to be lit.

Unit accessed via service interface The unit is currently being accessed through the service interface.

4.4

Loopbacks To help with fault location on the digital signal paths, a digital loopback can be connected on the digital side of the CODEC (D-D loop). The loopback can be set on with command 5,9,u,2,ch,2. Loopbacks and other controls operate on a timed basis. Set a time-out period using command 6,9,u,6,1. After this selection, controls will continue to operate until cancelled or until the time-out period expires. If you set the time-out period to 65535, time-out will never occur.

4.5

Performance measurements The unit can provide some (limited) performance or usage information using the Traffic and Alarms logs (7,9,u,5 and 7,9,u,6). These provide information on the number of calls processed, and the number of 2048 kbit line failure alarm events received by the unit. Both logs display a count of their r espective events since they were last reset. The operating voltages can be checked by command 7,9,u,1. If the operating voltages deviate from the recommended values, it is advisable to check the battery and the signalling voltage, and the connection between the positive pole of the signalling voltage and the subrack ground.

4.6

Tests For production purposes the unit has a set of test options, given in menu 9,9,u. Normally, you should not need to use this test facility.

Note If you enter a production test state accidentally (a rack alarm B, test mode , is generated), cancel the state with command 9,9,u,1,1.

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Locating faults

4.7

Frequently asked questions Problem A telephone call generates a very short ringing tone.

Action Check the connection of ringing voltage. If the ringing voltage is connected with reference to minus in the ring generator (TU 21261), the jumper setting RG_ref (NR4) of SUB units must be connected to ground (GND). or If the ringing voltage is connected with reference to ground (GND) in the ring generator (TU 21261 version 08A or newer), the SUB units ’ jumper setting RG_ref (NR4) must be connected to B1.

Problem A telephone gives a high-frequency tone.

Action The metering signal 12 kHz (charge indication) is active. If in the exchange end the unit TU 21215 is used which does not support the metering function, this metering function must be set out of use also in the SUB unit TU 21206 by command 6,9,u,3,8,ch,2 .

Note This action concerns the SUB unit version 01A; in the unit version 03A the function is disabled by default.

Problem In the hot line connection, a telephone gives a re-ring signal if both subscribers have not laid down the receiver exactly the same time.

Action You must set the hot line function into use by the Service Terminal command 6,9,u,3,7,ch,2 .

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Problem A new SUB unit in connection with an old EXC unit.

Action When you use a new SUB unit (TU 21206 version 01A) together with an old EXC unit (TU 21215), the metering function must be set out of use. In the new SUB unit version 03A this metering function is disabled by default. In addition to this, in the old EXC unit the Ringing timing control setting (6,9,u,7) must be set to Direct timing (6,9,u,7,1).

Note The following question concerns the unit

TU 21216 .

Problem The signalling is functioning normally but the voice is hardly to be heard.

Action Unlike old units, the unit TU 21216 requires for its operation signalling voltage –48 V. For this reason you have to connect the signalling voltage –48 V to subrack ’s B1. The positive pole of the voltage is to be connected to the subrack ’s/rack ’s earth screw.

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TU 21206 / TS 25060.00 Channel Unit SUB / SUB 2  400 Ohm, 6 channels Service Menu Reference

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TU 21206 / TS 25060.00 Service Menu Reference



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Comment

C33561005SE_00

24 Jan 2000

This document is valid for program TS 25060.00 version 01A.

C33561005SE_A0

30 Apr 2001

This document is valid for program TS 25060.00 version 01B.

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Contents


1 1

Chapter 2 Service menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Chapter 3 Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13

4,9,u Unit IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u,1 Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u,2 Identifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u,3 User manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u,5 Hardware ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u,6 Program version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,9,u,7 Modify IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13 13 13 14 14 14 14

Chapter 4 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

5,9,u Unit controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,0 Display active controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,1 Controls to normal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,2 Loop to equipment (channel-associated) . . . . . . . . . . . . . . 5,9,u,2,ch Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,2,ch,2 D–>D–> loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,2,ch,3 Loop off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,3 Forced indication (LED-associated) . . . . . . . . . . . . . . . . . 5,9,u,3,led Forced indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,3,led,0 Display state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,3,led,1 Forced state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,3,led,1,1 Forced ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,3,led,1,2 Forced OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,9,u,3,led,2 Free state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17 17 18 18 18 18 18 18 19 19 19 19 19 19

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Chapter 5 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21

6,9,u Unit settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,0 Display settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,1 Default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,1,1,2 Cancel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,1,1,9 Set def. settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,2 Voltage supervision (voltage-associated) . . . . . . . . . . . . . . 6,9,u,3 Channel settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,1 Channel use (channel-associated) . . . . . . . . . . . . . . . . . . 6,9,u,3,1,ch Channel use (single channel) . . . . . . . . . . . . . . . . . . . 6,9,u,3,1,ch,1 ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,1,ch,2 OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,1,ch,3 Modify timeslot . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,1,ch,3,t Timeslot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,1,11 Channel use (all channels) . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,1,11,1 ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,1,11,2 OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,1,11,3 Modify timeslot . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,1,11,3,t Timeslot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,3 Wire levels (channel-associated) . . . . . . . . . . . . . . . . . . 6,9,u,3,3,ch Modify levels (single channel) . . . . . . . . . . . . . . . . . . 6,9,u,3,3,ch,1 Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,3,ch,2 Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,3,11 Modify Levels (all channels) . . . . . . . . . . . . . . . . . . . 6,9,u,3,3,11,1 Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,3,11,2 Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,5 2-w balance impedance . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,5,0 Display used impedance (channel-associated) . . . . . . 6,9,u,3,5,1 Display impedance parameters (group-associated) . . . 6,9,u,3,5,1,g Display group g . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,5,2 Select new impedance (channel-associated) . . . . . . . . 6,9,u,3,5,2,ch Select impedance (group-associated) . . . . . . . . . . . 6,9,u,3,5,2,ch,g Assign group g . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,5,3 Modify coefficient parameters (byte-associated) . . . . 6,9,u,3,6 Channel blocking (channel-associated) . . . . . . . . . . . . . 6,9,u,3,6,ch Channel blocking (single channel) . . . . . . . . . . . . . . . 6,9,u,3,6,ch,1 ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,6,ch,2 OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,6,11 Channel blocking (all channels) . . . . . . . . . . . . . . . . 6,9,u,3,6,11,1 ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,6,11,2 OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,7 Signalling mode (channel associated) . . . . . . . . . . . . . . 6,9,u,3,7,ch Signalling mode (single channel) . . . . . . . . . . . . . . . 6,9,u,3,7,ch,1 Normal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,7,ch,2 Hot line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,7,11 Signalling mode (all channels) . . . . . . . . . . . . . . . . . 6,9,u,3,7,11,1 Normal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,7,11,2 Hot line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,8 Metering use (channel associated) . . . . . . . . . . . . . . . . . 6,9,u,3,8,ch Metering use (single channel) . . . . . . . . . . . . . . . . . .

21 21 23 23 23 24 25 25 25 26 26 26 26 27 27 27 27 28 28 28 28 29 29 30 30 30 31 32 32 32 32 33 33 33 34 34 34 34 34 35 35 35 35 35 35 36 36 36 36

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6,9,u,3,8,ch,1 Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,8,ch,2 Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,8,11 Metering use (all channels) . . . . . . . . . . . . . . . . . . . . 6,9,u,3,8,11,1 Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,3,8,11,2 Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,4 Fault consequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,4,1 Fault consequences (AIS in one channel) . . . . . . . . . . . . 6,9,u,4,1,1 No alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,4,1,2 B-alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,4,3 Fault consequences (Blocking) . . . . . . . . . . . . . . . . . . . . 6,9,u,4,3,1 No alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,4,3,2 B-alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,4,4 Fault consequences (Analog line state) . . . . . . . . . . . . . 6,9,u,4,4,1 Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,4,4,2 Reversed polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,6 Time constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,6,1 Controls timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,6,1,1 Modify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,6,1,1,s Setting of permanent time constant . . . . . . . . . . . . . . 6,9,u,8 Read/load settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,8,0 Display setup ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,8,1 Read from unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,9,u,8,2,* Load to unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

36 36 36 37 37 37 37 37 37 38 38 38 38 38 38 39 39 39 39 40 40 40 40

Chapter 6 Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

41

7,9,u Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,0 Channel faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,1 Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,1,1 –48 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,1,1,1 Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,1,2 –5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,1,2,1 Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,1,3 75 VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,1,3,1 Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,2 Line code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,3 Signalling state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,3,1 Mnemonic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,3,2 All states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,4 Detections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,5 Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,5,1 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,6 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,6,1 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,7 Calibrate levels (channel-associated) . . . . . . . . . . . . . . . . . 7,9,u,7,ch Calibrate levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,7,ch,1 2-wire receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,9,u,7,ch,2 2-wire transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

41 41 42 42 42 43 43 43 43 44 44 44 44 45 45 45 45 45 46 46 46 46

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Chapter 7 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

47

9,9,u Unit testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,9,u,1 Production test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,9,u,1,1 Production test OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,9,u,1,2 SLIC state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,9,u,1,2,s Set SLIC test state (s) . . . . . . . . . . . . . . . . . . . . . . . . . . 9,9,u,2 Read memory 8 byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,9,u,2,add Memory contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

47 47 48 48 48 48 48

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About this document


This document lists and details the menus used for controlling Channel Unit SUB / SUB. The menus are described as they appear in the Service Terminal or Macro STE. The document covers the following topics: D D

service menu diagrams of the unit (Chapter 2). descriptions of the SUB/SUB unit menus (Chapters 3 – 7) for: S setting and reading identifications S setting temporary controls S setting and modifying permanent setting parameters S reading measurement results S production line testing.

Related documents The general principles for accessing and controlling the unit are given in the Commissioning and Maintenance document of this manual, DM 2-MUX Operating Handbook and DM 2+ Operating Manual. The general operation principles of the Service Terminal are found in the Operating Manual for Service Terminal TC 21700. The abbreviations used in this document are explained in the Glossary of this manual.

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C33561005SE_A0

Service menus

Chapter 2 Service menus

This chapter shows the service menu diagrams of the SUB/SUB unit. The diagrams consist of rectangular boxes (representing Service Terminal displays) that have been arranged in hierarchical fashion: the main menu is shown on the top of the page and the submenus proceed downwards and to the right of the main menu.

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MAIN LEVEL MENU (MUX) 4 TOP

Identifications: 1 Eq type 2 Eq name 7 Modify eq name 9 Unit 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

See: Page 5

5 Controls: 0 Display MUX controls 1 Eq. to normal state 2 2M loops 3 Sig. to meas. conn. 9 Unit controls

Page 6

6 Settings: 1 Service options 2 HW config. 9 Unit settings

Give main level: 4 ... 9

Page 7

7 Measurements: 9 Unit measurements

The following abbreviations are used in the menu commands: b ch dir led u v

byte channel direction lightĆemitting diode unit voltage

1)

Not yet implemented

Page 11

8 Statistics:

1)

9 Unit statistics 9 Testing: 9 Unit tests

Page 12

Options in bold type indicate access to SUB/SUB unit menus

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C33561005SE_A0

Service menus

IDENTIFICATIONS: Unit IDs

4 Identifications: 1 Eq type 2 Eq name 7 Modify eq name 9 Unit IDs

4,9

4,9,u,1 SUB/SUB 6 channels 4,9,u,2

Unit ? 1...20

000000000000000 u 1...20

4,9,u SUB/SUB identifications: 1 Name 2 Identifier 3 User manual 5 Hardware ID 6 Program version 7 Modify IDs

2)

4,9,u,3 C33561005SE_A 4,9,u,5 TU 21206 03A

2)

4,9,u,6 TS 25060.00 01B 4,9,u,7 Modify IDs: 2 Identifier 5 Hardware ID 4,9,u,7,2,0 4,9,u,7,2 Identifier: 0 Display 1 Modify

2)

000000000000000 4,9,u,7,2,1 Give new identifier: 1 – 15 characters ? 4,9,u,7,5,0

4,9,u,7,5 Hardware ID: 0 Display 1 Modify

TU 21206 01A

2)

4,9,u,7,5,1 Give new hardware ID: 1 – 15 characters ?

1)

Default identification 2) Example

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CONTROLS: Unit Controls

5 Controls: 0 Display MUX controls 1 Eq. to normal state 2 2M loops 3 Sig. to meas. conn. 9 Unit controls 5,9 Unit ? 1...20 u 1...20 5,9,u SUB/SUB controls: 0 1 2 3

Display act. contr. Controls to normal Loop to equipment Forced indication

5,9,u,2,ch 5,9,u,2 Select channel: 1...6 channel

ch 1...6

5,9,u,3 Select led: 1 Red 2 Yellow 3 Green

Loop to equipment: 0 Display 2 D – >D – >loop 3 Loop off

5,9,u,3,led led 1,2,3

Forced indication: 0 Display state 1 Forced state 2 Free state

5,9,u,3,led,1 Forced state: 1 Forced ON 2 Forced OFF

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Service menus

SETTINGS: Unit Settings 6,9,u,1,1

6,9,u,1

Are you sure ? 2 Cancel 9 Set def. settings

Default settings: 1 Set def. settings 6 6,9,u,2

Settings: 1 Service options 2 HW config. 9 Unit settings 6,9

Select voltage: 1 – 48 V 2 – 5 V 3 75 VAC

v 1 2 3

Voltage supervision: 0 Display 1) 1 ON 2 OFF

6,9,u,3

Unit ? 1...20 6,9,u

6,9,u,2,v

Channel settings: 1 Channel use 3 Wire levels 5 2-w balance imped. 6 Channel blocking 7 Signalling mode 8 Metering use

u 1...20

SUB/SUB settings: 0 Display settings 1 Default settings 2 Voltage supervision 3 Channel settings 4 Fault consequences 6 Time constants 8 Copy settings

6,9,u,4 Fault consequences: 1 AIS in one channel 3 Blocking 4 Analog line state when block/fault

Pages 8 and 9 6,9,u,4,1 AIS in one channel: 0 Display 1 No alarms 1) 2 B-alarm 6,9,u,4,3 Blocking: 0 Display 1 No alarms 2 B-alarm

1)

6,9,u,4,4 Analog line state: 0 Display 1) 1 Open 2 Reversed polarity

6,9,u,6 Time constants: 1 Controls timeout

6,9,u,6,1 Controls timeout 0 Display 1 Modify 6,9,u,6,1,1 1...65534 sec 65535 no timeout

1)

6,9,u,8 Read/load Settings: 0 Display setup ID 1 Read from Unit 2 ,* Load to Unit (*=)

1) Default setting

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SETTINGS: Channel Settings 6,9,u,3 Channel settings: 1 Channel use 3 Wire levels 5 2-wire balance imped. 6 Channel blocking 7 Signalling mode 8 Metering use

6,9,u,3,1,ch ch Channel use: 1...6 0 Display 1 ON 2 OFF 3 Modify timeslot

Give timeslot: 1 – 15 or 17 – 31 ?

6,9,u,3,1,11

6,9,u,3,1

Channel use: 0 Display 1 ON 2 OFF 1) 3 Modify timeslot

Select channel: 1...6 channel 11 All channels

6,9,u,3,3 Select channel: 1...6 channel 11 All channels

6,9,u,3,1,ch,3

6,9,u,3,3,ch ch 1...6, 11

Modify levels: 0 Display 1 Receive 2 Transmit

6,9,u,3,1,11,3 Give first timeslot: 1 – 15 & 17 – 26 ?

6,9,u,3,3,ch,1 Give new level (dBr) ? 0 ... – 12.0 6,9,u,3,3,ch,2 Give new level (dBr) ? 6.0 ... – 6.0

6,9,u,3,5 see next page

6,9,u,3,6 see page 10 6,9,u,3,7 see page 10 6,9,u,3,8 see page 10

1) Default setting

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6,9,u,3,5,0 Select channel: 1...6 channel 11 All channels

6,9,u,3,5 2-w balance imped.: 0 Display used imped. 1 Display imped. param. 2 Select new imped. 3 Modify coeffic. param.

6,9,u,3,5,1 Select impedance: 1) 1 600, 600 2 600, 390+(620//100nF) 3 600, 270+(1200//120nF) 4 270+(750//150nF), 270+(750//150nF) 5 270+(750//150nF), 390+(620//100nF) 6 270+(750//150nF), 270+(1200//120nF) 7 Coefficients 6,9,u,3,5,2 Select channel: 1...6 channel 11 All channels ch 6,9,u,3,5,2,ch

1...6, 11

Select new impedance: 1 600, 600 2 600, 390+(620//100nF) 3 600, 270+(1200//120nF) 4 270+(750//150nF), 270+(750//150nF) 5 270+(750//150nF), 390+(620//100nF) 6 270+(750//150nF), 270+(1200//120nF) 7 Coefficients

6,9,u,3,5,3 Which byte 1...3 ?

6,9,u,3,5,3,b b Give new value 0 – 255 ? 1..3

1) Default setting

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6,9,u,3,6,ch


ch 1...6, 11

6,9,u,3,7,ch


ch 1...6, 11

Signalling mode: 0 Display 1 Normal 1) 2 Hot line

6,9,u,3,8,ch


Channel blocking: 0 Display 1 ON 2 OFF 1)

ch 1...6, 11

Metering use: 0 Display 1 Enabled 2 Disabled 1)

1) Default setting

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Service menus

MEASUREMENTS: Unit Measurements 7,9,u,1,1 – 48 V: 0 Display 1 Calibrate

7 Measurements: 9 Unit measurements

7,9,u,1,1,1 Give measured voltage (V x 100) without sign

7,9 7,9,u,1,2

Unit ? 1...20

7,9,u

7,9,u,1 u 1...20

SUB/SUB measurements: 0 Channel faults 1 Voltages 2 Line code 3 Signalling state 4 Detections 5 Traffic 6 Alarms 7 Calibrate levels

– 5 V: 0 Display 1 Calibrate

Voltages: 1 – 48 V 2 – 5 V 3 75 VAC

7,9,u,1,2,1 Give measured voltage (V x 100) without sign

7,9,u,1,3

7,9,u,3

75 VAC: 0 Display 1 Calibrate

Signalling state: 1 Mnemonic 2 All states

7,9,u,1,3,1 7,9,u,5

Give measured voltage (V x 100) without sign

Traffic: 0 Display 1 Reset 7,9,u,6 Alarms 0 Display 1 Reset 7,9,u,7 Select channel: 1...6 channel

7,9,u,7,ch ch 1...6

Calibrate levels: 1 2-wire receive 2 2-wire transmit

7,9,u,7,ch,dir

direction 1,2

Give difference of level (dB)

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TESTING: Unit Testing

9 Testing: 9 Unit testing

9,9 9,9,u,1,2

Unit ? 1...20

9,9,u

u 1...20

Testing: 1 Production test 2 Read memory 8 bytes

9,9,u,1 Production test: 0 Display 1 Production test OFF 2 SLIC state

9,9,u,2

SLIC state: 0 Display 1 Normal polarity 2 Normal polarity Ground 3 Ringing 4 Open circuit 5 Reverse polarity 6 Reverse polarity Ground 7 Tip open 8 Metering

Give address: 0...65535 ?

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Identifications

Chapter 3 Identifications

The SUB/SUB has been provided with several identifications at the factory. In addition, you can specify the unit also by a user-set identifier to facilitate network management and maintenance.

4,9,u Unit IDs SUB/SUB identifications: 1 Name 2 Identifier 3 User manual 5 Hardware ID 6 Program version 7 Modify IDs

4,9,u,1 Name Shows the name of the unit. Response example: SUB/SUB 6 channels

4,9,u,2 Identifier Shows the unit-specific identification set by the user (see 4,9,u,7,2,). It may be, for example, route information. Response example: DM2-SUB3

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4,9,u,3 User manual To make sure that you have the correct Service Menu Reference document, you can check the document number here. The number is shown in the footer on each page of the document, and on the Service Terminal display it is given without the last character: C33561005SE_A

4,9,u,5 Hardware ID Shows type and version information for the unit. This ID may be modified by the user (see 4,9,u,7,5), but it is not recommended, as the ID is initialised during manufacture to the correct information for a given unit. Response example: TU 21206 03A

4,9,u,6 Program version Shows the product code and version of the program. Response example: TS 25060.00 01B

4,9,u,7 Modify IDs Modify IDs: 2 Identifier 5 Hardware ID

4,9,u,7,2 Identifier Identifier: 0 Display 1 Modify

4,9,u,7,2,0 Display Shows the unit identifier (see 4,9,u,2).

4,9,u,7,2,1 Modify The program responds by prompting for a new unit identifier: Give new identifier: 1-15 characters

The identifier can be a string of 1 to 15 characters.

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Identifications

4,9,u,7,5 Hardware ID Hardware ID: 0 Display 1 Modify

4,9,u,7,5,0 Display Shows the hardware ID (see 4,9,u,5).

4,9,u,7,5,1 Modify The program responds by prompting for a new hardware ID: Give new hardware ID: 1-15 characters

The ID can be a string of 1 to 15 characters.

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Controls

Chapter 4 Controls

The unit provides control functions, such as loopbacks, to facilitate troubleshooting and servicing of the equipment. Controls are temporary functions that are automatically cancelled as soon as a preset time has elapsed from the l ast control selection. The controls are cancelled with commands 5,1 Eq. to normal state or 5,9,u,1 Controls to normal. The time-out can be displayed and modified with command 6,9,u,6,1 Controls timeout.

5,9,u Unit controls SUB/SUB controls: 0 Display act. contr. 1 Controls to normal 2 Loop to equipment 3 Forced indication

5,9,u,0 Display active controls Shows all active controls. The display indicates loopbacks and forced controls of the LEDs. If there are no active controls, the response is: No active controls

If one of the LEDs (for example, a red LED) is forced ON or OFF, the display will show this information: Red led forced ON

If a loopback (for example, a D–>D loop) has been set up on one of the channels, the display will show this information: Ch. loop 2 D – >D

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5,9,u,1 Controls to normal Forces all controls to normal state (loops off for all channels and all LEDs in free state).

5,9,u,2 Loop to equipment (channel-associated) In a loopback, the speech signal of the receive (Rx) direction (of PCM) is connected to the transmit (Tx) direction (of PCM). The loopback does not concern signalling. Loopbacks are channel-associated and the program therefore prompts next for the number of the channel to be looped. The channels of the unit are numbered from 1 to 6, starting from the top. Select channel: 1...6 channel

5,9,u,2,ch Loop Loop to equipment: 0 Display 2 D – >D – >loop 3 Loop off

5,9,u,2,ch,0 Display Shows whether a loopback has been connected on the chosen channel. Response example: No loop

5,9,u,2,ch,2 D–>D–> loop Sets a purely digital loopback in which the Rx PCM signal is fed back directly to the Tx PCM direction. The channel can be looped only when it is in the idle state. The realisation of the loopback request can be seen from the signalling state display ( 7,9,u,3,1), which will change from ‘i’ (idle) to ‘l’ (loop) on the looped channel. The loopback causes a Loop to equipment alarm (A-alarm).

5,9,u,2,ch,3 Loop off Removes the loopback from the chosen channel.

5,9,u,3 Forced indication (LED-associated) Select LED: 1 Red 2 Yellow 3 Green

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Forced indication is LED-associated. The colour of the LED to be forced is prompted for here.

5,9,u,3,led Forced indication Forced indication: 0 Display state 1 Forced state 2 Free state

5,9,u,3,led,0 Display state Shows the state of the forced indication for a given LED (for example, a red LED). If there are no forced controls, the response is: Red led is in free state

If the LED is forced on, the response is: Red led is in forced ON state

If the LED is forced off, the response is: Red led is in forced OFF state

5,9,u,3,led,1 Forced state Forced state: 1 Forced ON 2 Forced OFF

5,9,u,3,led,1,1 Forced ON Forces the LED to be lit, regardless of the state of the alarm or condition that is normally associated with the LED. This option generates a Forced indic. alarm (B-alarm).

5,9,u,3,led,1,2 Forced OFF Forces the LED to go out, regardless of the state of the alarm or condition that is normally associated with the LED. This option generates a Forced indic. alarm (B-alarm).

5,9,u,3,led,2 Free state Puts the LED into the free state. In this state the LED will indicate alarm or software conditions as normal.

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Settings

Chapter 5 Settings

Settings are permanent parameter values that determine the operating mode of the unit. The parameter values are stored into a nonvolatile memory, and will remain there even if power supply to the unit fails.

6,9,u Unit settings SUB/SUB settings: 0 Display settings 1 Default settings 2 Voltage supervision 3 Channel settings 4 Fault consequences 6 Time constants 8 Copy settings

6,9,u,0 Display settings Shows the settings of the SUB / SUB unit. When you have modified the settings, the easiest way to check them is to use this command. A response example is given overleaf.

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Voltage supervision: – 48 V ON – 5 V ON 75 VAC ON Timeslots: +1 +2 – 3 – 4 q5 +9 Wire levels (dBr) : Ch Rx Tx 1 – 2.0 0.0 2 – 2.0 0.0 3 – 2.0 0.0 4 – 2.0 0.0 5 – 2.0 0.0 6 – 2.0 0.0 2-w bal. imp. group: 111111 Blocking: OFF OFF OFF OFF OFF OFF Signalling mode: NHHNNH Metering use: EEDEDE Fault consequences: AIS in signalling B-alarm Blocking: B-alarm Controls time-out No time-out Analog line state: Open

The response example indicates: D D D D D D D D D D D D D

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All the measured voltages used in the unit are supervised (signalling, –5 V, ringing). Channels 1, 2 and 6 are in use in time slots 1, 2 and 9. Channels 3 and 4 are out of use. Channel 5 is being brought into use. All channels have the same level setting: –2.0 dBr in the receive direction and 0 dBr in the transmit direction. Group 1 has been selected as the 2-wire balance impedance for all channels. Local channel blocking is not enabled for any of the channels. Signalling mode has been set to Normal for channels 1, 4 and 5, and to Hot line for channels 2, 3 and 6. Metering use has been set Enabled for channels 1, 2, 4 and 6, and Disabled for channels 3 and 5. Channel-associated AIS in signalling causes a B-alarm. Channel-associated blocking (local or exchange generated) causes a B-alarm. The time-out for controls has been set to No time-out. The analog line state has been set to Open circuit during blocking or fault on 2048 kbit signal to MUX unit.

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Settings

6,9,u,1 Default settings Default settings: 1 Set def. settings

6,9,u,1,1 Are you sure? (Default settings) Are you sure? 2 Cancel 9 Set def. settings

6,9,u,1,1,2 Cancel Default settings are not installed in the unit. All settings remain as before.

6,9,u,1,1,9 Set def. settings Sets the settings of the unit to their default values and replaces any settings in the EEPROM which you may have altered. The default settings are listed in Table 1:

Parameter

Default setting

Voltage supervision

Enabled for all three supervised voltages (signalling, – 5 V and ringing)

Channel use

All channels out of use

Time slots

Time slots set to 1 to 6 (for channels 1 to 6)

Wire levels for all channels

– 7.0 dBr in the receive and +0.0 dBr in transmit direction

2-wire balance impedance group for all channels

Set to group 1: 600, 600

Channel blocking


Signalling mode

Set to Normal for all channels

Metering use


Fault consequences: Channel-associated AIS in signalling

Causes a B-alarm

Blocking

Causes a B-alarm

Analog line state when block/ Open fault Time-out period for controls

Set to No time-out

User-defined balance impedance coefficients

Set to impedance group number 1

Table 1

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6,9,u,2 Voltage supervision (voltage-associated) Select voltage: 1 – 48 V 2 – 5 V 3 75 VAC

Voltage supervision control is voltage-associated. The number of the voltage to be supervised is prompted for here.

Note –48 V is the signalling voltage, –5 V is a supply voltage generated in the unit, and 75 VAC is the ringing voltage. If a supervised voltage exceeds its specified range, a Power supply fault alarm (A-alarm) will be generated.

6,9,u,2,v (Voltage supervision) Voltage supervision: 0 Display 1 ON 2 OFF

6,9,u,2,v,0 Display Shows whether the selected voltage is supervised or not. If it is supervised, the response will be: Supervision ON

If the voltage is not supervised, the response is: Supervision OFF

6,9,u,2,v,1 ON Switches on the supervision of the selected voltage.

6,9,u,2,v,2 OFF Switches off the supervision of the selected voltage.

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Settings

6,9,u,3 Channel settings Channel settings: 1 Channel use 3 Wire levels 5 2-w balance imped. 6 Channel blocking 7 Signalling mode 8 Metering use

6,9,u,3,1 Channel use (channel-associated) The program prompts for the channel number. The channels of the unit are numbered from 1 to 6, starting from the top. Selecting 11 performs the subsequent operation on all channels. Select channel: 1 ... 6 channel 11 All channels

6,9,u,3,1,ch Channel use (single channel) Channel use: 0 Display 1 ON 2 OFF 3 Modify timeslot

6,9,u,3,1,ch,0 Display Shows the time slot allocated for the selected channel and indicates whether the channel is in use or not. If the channel is out of use (and time slot 9 is allocated to the channel), the response is: – 9

If the channel is in use and it uses time slot 9, the response is: +9

If the channel is being taken into use or out of use (and time slot is 9 is allocated to the channel) the response is: q9

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6,9,u,3,1,ch,1 ON The unit attempts to take the channel into use on a time slot selected earlier. If the time slot is free and the channel not already in use, the following text will be displayed as the channel is put into use: Waiting for TS

If the channel is already in use, the response will be: Chan. already in use

If the time slot allocated to the channel is already in use by another channel, the channel will not be put into use, and the following response will be displayed: Not done TS reserved

6,9,u,3,1,ch,2 OFF The channel is taken out of use. If the channel is already out of use, the response will be: Channel not in use

6,9,u,3,1,ch,3 Modify timeslot The program gives a menu prompting for the time slot for the channel. Give timeslot: 1-15 or 17-31

6,9,u,3,1,ch,3,t Timeslot Allocates a time slot (t) to channel ch. If the time slot is reserved (already in use), the response is: Not done TS reserved

If the time slot is free, the following response may be seen as the time slot is allocated: TS modific. started

The time slot setting does not affect the use of the channel. If the channel is in use, it remains in use and if it is out of use, a time slot change does not bring the channel into use.

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Settings

6,9,u,3,1,11 Channel use (all channels) Channel use: 0 Display 1 ON 2 OFF 3 Modify timeslot

6,9,u,3,1,11,0 Display Shows the time slots allocated for all channels and indicates whether the channels are in use or not. A response example is: – 9 +5 – 4 q3 +2 +17

The display shows channel use for channels 1 to 6 from left to right. ‘+’ indicates that the channel is in use. ‘–’ indicates that the channel has been taken out of use. ‘q’ indicates that the channel is being taken into use. The number indicates the time slot allocated to the channel.

6,9,u,3,1,11,1 ON The unit attempts to take all channels into use on the time slots selected earlier. If all the allocated time slots are free, the response will be: Waiting for TS

If the time slot allocated to any of the channels is already in use by another channel in the unit, none of the channels will be put into use, and the following response will be displayed: Unit has aligned TSs

If the time slot allocated to any of the channels is already in use by another channel in another unit, none of the channels will be put into use and the following response will be displayed: Not done TS reserved

6,9,u,3,1,11,2 OFF All channels are taken out of use.

6,9,u,3,1,11,3 Modify timeslot The program gives a menu prompting for the first time slot for the channels. Give first timeslot: 1-15 & 17-26

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6,9,u,3,1,11,3,t Timeslot Allocates a time slot (t) to channel 1, and the subsequent five time slots to the remaining five channels. If a time slot is reserved, no time slots will be allocated, and the response is: Not done TS reserved

If the time slots are free, they will be allocated to the channels and the program responds: TS modific. started

The time slot setting does not affect the use of the channels. If the channels are in use, they remain in use and if they are out of use, a time slot change does not bring a channel into use.

6,9,u,3,3 Wire levels (channel-associated) The program prompts for the channel number. The channels of the unit are numbered from 1 to 6, starting from the top. Selecting 11 performs the subsequent operation on all channels. Select channel: 1 ... 6 channel 11 All channels

6,9,u,3,3,ch Modify levels (single channel) Modify levels: 0 Display 1 Receive 2 Transmit

6,9,u,3,3,ch,0 Display Shows the relative level of the channel in the receive (Rx) and transmit (Tx) direction. Response example (for channel 1): 2-w Rx Tx (dBr) 1 – 7.0 0.0

6,9,u,3,3,ch,1 Receive The new level for the receive direction is prompted for next: Give new level (dBr) 0 ... – 12.0

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Settings

The allowed level range is 0 to –12.0 dBr with 0.5 dB steps. If you enter a value which is outside the range, the level is prompted for a second time: Try again Range (dBr) 0 ... – 12.0 Step 0.5

If a call is currently in progress on the channel (the channel is not in the idle state), the change of level becomes effective only after the call has ended.

6,9,u,3,3,ch,2 Transmit The new level for the transmit direction is prompted for next: Give new level (dBr) +6.0 ... – 6.0

The allowed level range is +6.0 to –6.0 dBr with 0.5 dB steps. If you enter a value which is outside the range, the level is prompted for a second time: Try again Range (dBr) +6.0 ... – 6.0 Step 0.5


6,9,u,3,3,11 Modify Levels (all channels) Modify levels: 0 Display 1 Receive 2 Transmit

6,9,u,3,3,11,0 Display Shows the relative level of all the channels in the receive and transmit directions. Response example: Wire levels (dBr) : Ch Rx Tx 1 – 2.0 0.0 2 – 2.0 0.0 3 – 2.0 0.0 4 – 2.0 0.0 5 – 2.0 0.0 6 – 2.0 0.0

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6,9,u,3,3,11,1 Receive The new level for the receive direction of all channels is prompted for next: Give new level (dBr) 0 ... – 12.0

The allowed level range is 0 to –12.0 dBr with 0.5 dB steps. If you enter a value which is outside the range, the level is prompted for a second time: Try again Range (dBr) 0 ... – 12.0 Step 0.5


6,9,u,3,3,11,2 Transmit The new level for the transmit direction on all channels is prompted for next: Give new level (dBr) +6.0 ... – 6.0

The allowed level range is +6.0 to –6.0 dBr with 0.5 dB steps. If you enter, a value which is outside the range, the level is prompted for a second time: Try again Range (dBr) +6.0 ... – 6.0 Step 0.5

If a call is currently in progress on a given channel, the change of level for that channel becomes effective only after the call has ended.

6,9,u,3,5 2-w balance impedance It is possible to select a balance impedance most suitable for the speech-wire interface. The nominal impedance has a fixed value that is chosen with a jumper setting. The impedance selection is done by changing the filter parameters of the CODEC circuit. The circuit requires three parameters (one byte each) for this configuration. The program includes six pre-calculated alternatives (three alternatives for each of the nominal impedances) which have been named groups 1 to 6, and a user-programmable alternative in group 7. Groups 1 to 6 have been programmed in the EPROM memory and they cannot be changed. Group 7 is stored in the EEPROM memory and its parameters may be changed via the service interface.

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Settings

As a response to the selection, the unit gives the menu: 2-w balance imped.: 0 Display used imped. 1 Display imped. param 2 Select new imped. 3 Modify coeffic. param

To be able to use option 3, you have to know the new parameters for the filters.

Note Do not search for the parameters by trying out different alternatives, as this is extremely unlikely to produce usable results.

6,9,u,3,5,0 Display used impedance (channel-associated) The program prompts for the channel number. The channels of the unit are numbered from 1 to 6, starting from the top. Selecting 11 performs the subsequent operation on all channels. Select channel: 1 ... 6 channel 11 All channels

6,9,u,3,5,0,ch Display used impedance (single channel) Shows the impedance group selected for the given channel. See 6,9,u,3,5,1 for the impedance values associated with each group. Response example: 1

6,9,u,3,5,0,11 Display used impedance (all channels) Shows the impedance groups selected for all channels (channels 1 to 6 from left to right). See 6,9,u,3,5,1 for the impedance values associated with each group. Response example: 111111

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6,9,u,3,5,1 Display impedance parameters (group-associated) The program prompts for a 2-wire impedance group from the following menu: Select impedance: 1 600, 600 2 600, 390+(620//100nF) 3 600, 270+(1200//120nF) 4 270+(750//150nF), 270+(750//150nF) 5 270+(750//150nF), 390+(620//100nF) 6 270+(750//150nF), 270+(1200//120nF) 7 Coefficients

Note Group 7 contains the user-programmable balance coefficients.

6,9,u,3,5,1,g Display group g Shows the three coefficients (in decimal) associated with the selected balance impedance group g. Response example: 181 16 192

6,9,u,3,5,2 Select new impedance (channel-associated) The program prompts for the channel number. The channels of the unit are numbered from 1 to 6, starting from the top. Selecting 11 performs the subsequent operation on all channels. Select channel: 1 ... 6 channel 11 All channels

6,9,u,3,5,2,ch Select impedance (group-associated) The program prompts for a 2-wire impedance group from the following menu: Select new impedance: 1 600, 600 2 600, 390+(620//100nF) 3 600, 270+(1200//120nF) 4 270+(750//150nF), 270+(750//150nF) 5 270+(750//150nF), 390+(620//100nF) 6 270+(750//150nF), 270+(1200//120nF) 7 Coefficients

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Note Group 7 contains the user-programmable balance coefficients. This option is intended for product development use and we recommend that you do not select it.

6,9,u,3,5,2,ch,g Assign group g Assigns group g as the 2-wire balance coefficient group for channel ch. If ch is 11, all channels are assigned group g.

6,9,u,3,5,3 Modify coefficient parameters (byte-associated) Here you can modify the 2-wire balance impedance coefficients for impedance group 7. The unit prompts for the byte number of the filter parameter to be modified: Which byte 1...3 ?

6,9,u,3,5,3,b Enter byte b for impedance group 7 The unit prompts for the new value of the filter parameter: Give new value 0-255

6,9,u,3,6 Channel blocking (channel-associated) This option allows local blocking of the selected channels.

Note Calls cannot be made on blocked channels. The fault consequences of blocking are set with the Fault consequences, Blocking menu (6,9,u,4,3). If this is set to B-alarm, a Channel blocking alarm condition will be generated when blocking is enabled.

Note Blocking of a time slot may also be set at the exchange. This remote (exchange) blocking will generate the alarm and fault consequences associated with an AIS event, rather than those associated with local blocking. The program prompts for the channel number. The channels of the unit are numbered from 1 to 6, starting from the top. Selecting 11 performs the subsequent operation on all channels.

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Select channel: 1 ... 6 channel 11 All channels

6,9,u,3,6,ch Channel blocking (single channel) Channel blocking: 0 Display 1 ON 2 OFF

6,9,u,3,6,ch,0 Display Shows the state of local blocking control for channel ch. Response example: Not blocked

6,9,u,3,6,ch,1 ON Sets blocking on for channel ch.

6,9,u,3,6,ch,2 OFF Sets blocking off for channel ch.

6,9,u,3,6,11 Channel blocking (all channels) Channel blocking: 0 Display 1 ON 2 OFF

6,9,u,3,6,11,0 Display Shows the state of local blocking control for all channels (channels 1 to 6, top to bottom). Response example: 1 Not blocked 2 Blocked 3 Not blocked 4 Not blocked 5 Not blocked 6 Blocked

6,9,u,3,6,11,1 ON Sets blocking on for all channels.

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6,9,u,3,6,11,2 OFF Sets blocking off for all channels.

6,9,u,3,7 Signalling mode (channel associated) The program prompts for the channel number. The channels of the unit are numbered from 1 to 6, starting from the top. Selecting 11 performs the following operation on all channels. Select channel: 1 ... 6 channel 11 All channels

6,9,u,3,7,ch Signalling mode (single channel) Signalling mode: 0 Display 1 Normal 2 Hot line

6,9,u,3,7,ch,0 Display Shows the currently selected signalling mode for the selected channel. Response example: Normal

6,9,u,3,7,ch,1 Normal Sets the signalling software to use the normal signalling protocol for the selected channel.

6,9,u,3,7,ch,2 Hot line Sets the signalling software to use the hot line signalling protocol for the selected channel.

6,9,u,3,7,11 Signalling mode (all channels) Signalling mode: 0 Display 1 Normal 2 Hot line

6,9,u,3,7,11,0 Display Shows the currently selected signalling mode for all channels. Response example: NHNHNN

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6,9,u,3,7,11,1 Normal Sets the signalling software to use the normal signalling protocol for all channels.

6,9,u,3,7,11,2 Hot line Sets the signalling software to use the hot line signalling protocol for all channels.

6,9,u,3,8 Metering use (channel associated) The program prompts for the channel number. The channels of the unit are numbered from 1 to 6, starting from the top. Selecting 11 performs the following operation on all channels. Select channel: 1 ... 6 channel 11 All channels

6,9,u,3,8,ch Metering use (single channel) Metering use: 0 Display 1 Enabled 2 Disabled

6,9,u,3,8,ch,0 Display Shows the currently selected metering use for the selected channel. Response example: Metering enabled

6,9,u,3,8,ch,1 Enabled Sets the metering enabled for the selected channel.

6,9,u,3,8,ch,2 Disabled Sets the metering disabled for the selected channel.

6,9,u,3,8,11 Metering use (all channels) Metering use: 0 Display 1 Enabled 2 Disabled

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Settings

6,9,u,3,8,11,0 Display Shows whether metering has been enabled for the channels. Response example: EEEEED

6,9,u,3,8,11,1 Enabled Sets the metering enabled for all channels.

6,9,u,3,8,11,2 Disabled Sets the metering disabled for all channels.

6,9,u,4 Fault consequences Here you can specify the consequences of some fault conditions. The unit displays the menu: Fault consequences: 1 AIS in one channel 3 Blocking 4 Analog line state when block/fault

6,9,u,4,1 Fault consequences (AIS in one channel) AIS in one channel: 0 Display 1 No alarms 2 B-alarm

6,9,u,4,1,0 Display Shows the consequence of a channel-associated line code error in signalling. This error may indicate an AIS signal on one or more time slots, freezing of MUX signalling, or remote (exchange) blocking of one or more time slots. Response example: No alarm

6,9,u,4,1,1 No alarms A channel-associated line code error in signalling does not cause any alarm.

6,9,u,4,1,2 B-alarm A channel-associated line code error in signalling causes a B-alarm ( AIS TS 16 alarm).

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6,9,u,4,3 Fault consequences (Blocking) Blocking: 0 Display 1 No alarms 2 B-alarm

6,9,u,4,3,0 Display Shows the consequence of local blocking for one or more channels. Response example: No alarm

6,9,u,4,3,1 No alarms Blocking does not generate any alarms.

6,9,u,4,3,2 B-alarm Blocking causes a B-alarm condition ( Channel blocking alarm).

6,9,u,4,4 Fault consequences (Analog line state) Analog line state: 0 Display 1 Open 2 Reversed polarity

6,9,u,4,4,0 Display Shows the state of the subscriber interface when local or remote blocking for a particular channel is applied, or when there is a fault on the 2048 kbit signal to the MUX unit (all channels affected). Response example: Open

6,9,u,4,4,1 Open Blocking or a 2048 kbit signal fault causes the A- and B-wires of the affected channels to be disconnected (open) from the channel circuitry.

6,9,u,4,4,2 Reversed polarity Blocking or a 2048 kbit signal fault causes the polarity of the A- and B-wires of the affected channels to be put into the reversed polarity feed state.

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Settings

6,9,u,6 Time constants Shows the menu: Time constants: 1 Controls timeout

6,9,u,6,1 Controls timeout Shows the menu: Controls timeout: 0 Display 1 Modify

6,9,u,6,1,0 Display Shows the time period in seconds after which the controls ( 5,9,u,... ) are returned to normal. Response example: 21 seconds

If the period has been set to 65535, the controls will never return to normal automatically, and the following response is shown on the screen: No timeout

6,9,u,6,1,1 Modify Shows the menu: 1...65534 sec 65535 no timeout

6,9,u,6,1,1,s Setting of permanent time constant If s is set to 65535, the controls are never returned to normal. In other cases, they are returned to normal when s seconds have passed from the changing of the controls.

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6,9,u,8 Read/load settings Read/load settings: 0 Display setup ID 1 Read from unit 2, *Load to unit (*=)

6,9,u,8,0 Display setup ID Shows the setup ID of the unit. The ID is used for identifying units which require the same group of setup parameters to configure them. This ID allows you to copy configuration parameters between similar units (that is, those with the same setup ID). Response example: 2

6,9,u,8,1 Read from unit Reads all the configuration information (settings) from the unit and stores it in a buffer in the Service Terminal.

6,9,u,8,2,* Load to unit Note ‘*’ in the command sequence refers to the DATA key of the Service Terminal (an inverse function on the keyboard). Thus the actual key sequence to select this option is: 6,9,u,8,2, INV DATA RET. Copies the configuration information (settings) stored in the buffer of the Service Terminal (see 6,9,u,8,1) to the unit. This will only take place if the unit from which the settings were read has the same setup ID as the unit into which the settings are to be copied. The settings which will be copied are the unit identifier (set in option 4,9,u,7,2) and all of the settings which are affected by the command Set default settings (6,9,u,1,1,1).

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Measurements

Chapter 6 Measurements

The unit allows conducting measurements to facilitate troubleshooting. This is done by displaying a list of faults associated with a channel or channels. The unit allows you to display the parameter ’s value.

7,9,u Measurements SUB/SUB measurements: 0 Channel faults 1 Voltages 2 Line code 3 Signalling state 4 Detections 5 Traffic 6 Alarms 7 Calibrate levels

Many measurements are based on sampling at the measurement moment, and short passing phenomena cannot therefore be detected reliably by them.

7,9,u,0 Channel faults Shows a list of channels and associated faults. If there are no faults on any channels, the following will be displayed: No channel faults

If one or more channels contain faults, a display of the following type will be given: Channel 2: loop to equipment

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The following conditions may be reported for individual channels in this fault display: D D D D D

channel blocked from use (local blocking) loops to equipment (channel set for loopback) test mode (forced SLIC state, or channel connected to test bus) AIS TS16 (AIS alarm condition on channel) software incompatible with hardware (the software version of the unit is incompatible with the hardware version).

7,9,u,1 Voltages The option displays the menu: Voltages: 1 – 48 V 2 – 5 V 3 75 VAC

7,9,u,1,1 –48 V – 48 V: 0 Display 1 Calibrate

7,9,u,1,1,0 Display Provides information on the value of the –48 V supply (signalling voltage). Response example: Voltage is (V): – 49.0

7,9,u,1,1,1 Calibrate Prompts for the present value of the signalling voltage for calibration of the measuring circuit: Give measured voltage (V x 100) without sign

Give the voltage in units of V x 100 without sign. For example, –50 V should be entered as 5000. The valid input range is 4600 to 5800 ( –46 to –58 V).

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7,9,u,1,2 –5 V – 5 V: 0 Display 1 Calibrate

7,9,u,1,2,0 Display Provides information on the value of the –5 V supply. Response example: Voltage is (V): – 5.12

7,9,u,1,2,1 Calibrate Prompts for the present value of the –5 V supply for calibration of the measuring circuit: Give measured voltage (V x 100) without sign

Give the voltage in units of V x 100 without sign. For example, –5.1 V should be entered as 510. The valid input range is 475 to 525 (–4.75 to –5.25 V).

7,9,u,1,3 75 VAC 75 VAC: 0 Display 1 Calibrate

7,9,u,1,3,0 Display Provides information on the value of the ringing voltage. Response example: Voltage is (V): 74.0

7,9,u,1,3,1 Calibrate Prompts for the present value of the ringing voltage, for calibration of the measuring circuit: Give measured voltage (V x 100) without sign

Give the voltage in units of V x 100 (rms), without sign. For example, 75 Vrms should be entered as 7500. The valid input range is 6000 to 9000 (60 V rms to 90 Vrms).

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7,9,u,2 Line code Provides the receive and transmit line codes of all six channels. Response example: Ch Rx:abcd Tx:abcd 1 0101 0101 2 1101 1101 3 1001 1101 4 1011 1101 5 1111 1111 6 0101 0001

7,9,u,3 Signalling state Displays the menu: Signalling state: 1 Mnemonic 2 All states

7,9,u,3,1 Mnemonic Shows information on the signalling states of all six channels. The most common states have been given their own codes, other states use code o. The codes used in the response: b blocking f fault i idle l loop o other state of speech channel q queuing for time slot r ready to receive t test z channel out of use – channel non-existent Response example: Ch 1 2 3 4 5 6 i z o q o i

7,9,u,3,2 All states Shows information on the signalling states of all six channels. The response is given as a numerical value.

Note This option is intended for use during production testing only.

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Measurements

7,9,u,4 Detections Shows the single detection bits for all six channels. Response example: Ch 1 2 3 4 5 6 1 0 1 1 0 0

Note This option is intended for use during production testing only.

7,9,u,5 Traffic Traffic: 0 Display 1 Reset

7,9,u,5,0 Display Shows the number of outgoing calls per channel since the traffic log was last r eset. The log has a buffer size of 65535 calls per channel. Response example (channels 1 to 6, left to right): 1 3 0 4 1 2

7,9,u,5,1 Reset Resets the traffic log to zero (all channels).

7,9,u,6 Alarms Alarms: 0 Display 1 Reset

7,9,u,6,0 Display Shows the number of 2048 kbit signal fault alarms detected by the unit since the alarm log was last reset. The log has a buffer size of 255 alarms per channel. Although the log displays alarms per channel (6 entries), this condition affects all channels equally, so all channels will register the same number of 2048 kbit faults. Response example: 1 1 1 1 1 1

7,9,u,6,1 Reset Resets the alarm log to zero.

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7,9,u,7 Calibrate levels (channel-associated) The program prompts for the channel number. The channels of the unit are numbered from 1 to 6, starting from the top. Select channel: 1...6 channel

7,9,u,7,ch Calibrate levels Calibrate levels: 1 2-wire levels 2 2-wire transmit

7,9,u,7,ch,1 2-wire receive This option allows for fine tuning of the 2-wire receive level (see 6,9,u,3,3) to 0.1 dB resolution. An offset value in the range of +0.4 to –0.4 dB (0.1 dB resolution) is prompted for: Give difference of level (dB)

If you enter a value which is outside the range, the unit will display the following error message: Cal. term too big

7,9,u,7,ch,2 2-wire transmit This option allows for fine tuning of the 2-wire transmit level (see 6,9,u,3,3) to 0.1 dB resolution. An offset value in the range of +0.4 to –0.4 dB (0.1 dB resolution) is prompted for: Give difference of level (dB)

If you enter a value which is outside the range, the unit will display the following error message: Cal. term too big

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Testing

Chapter 7 Testing

Caution Do not use the testing options. Tests may cause permanent damage to the system and they should only be used for testing the units at the production line and debugging the software during field tests. t ests.

9,9,u Unit testing The option displays the menu: Testing: 1 Production test 2 Read memory 8 bytes

9,9,u,1 Production test This menu allows the SLIC circuits to be forced into a known state for production test purposes. The option displays the following menu: Production test: 0 Display 1 Production test OFF 2 SLIC state

9,9,u,1,0 Display Shows whether or not one of the production test options is currently in use. Response example: Production test ON

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9,9,u,1,1 Production test OFF Disables any test relay or forced SLIC state that may have been set up for test purposes. The unit is returned to normal operation.

9,9,u,1,2 SLIC state Gives the following menu for SLIC test state selection: SLIC state: 0 Display 1 Normal polarity 2 Normal polarity Ground 3 Ringing 4 Open circuit 5 Reverse polarity 6 Reverse polarity Ground 7 Tip open 8 Metering

9,9,u,1,2,0 Display (SLIC state) Shows the current SLIC test state, in accordance with the selection given in 9,9,u,1,2 . Response example: 3

9,9,u,1,2,s Set SLIC test state (s) Forces the SLIC circuits of all channels into signalling state s, in accordance with the selection given in 9,9,u,1,2. When the SLIC test states are forced using this mod e alarm (B-alarm) is generated. option, a Test mode Production ion test The channel circuits can be returned to normal operation using the Product OFF option (9,9,u,1,1 ).

9,9,u,2 Read memory 8 byte The option prompts for the memory address: Give address: 0...65535

9,9,u,2,add Memory contents Shows the contents of the memory location indicated by the address add (in decimal) and the seven subsequent memory locations. Response example: 123 45 0 4 23 167 54 242

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TU 21206 / TS 25060.00 Channel Unit SUB / SUB 2  400 Ohm, 6 channels Criterion tables 24.01.2000

1

Normal calls

State

Loop impedance

Feed condition

Transmit bits abcd

Receive bits abcd

I DL E

HIGH

+/A, – /B

1001

10m1

READY TO RECEIVE

LOW

+/A, – /B

0001

10m1

HIGH/LOW

+/A, – /B

1/0001

10m1

LOW

– /A, +/B

0001

00m1

timed HIGH

– /A, +/B

1001

00m1/10m1

CLEAR BACK

LOW

+/A, – /B

0001

10m1

GROUND KEY

GROUND

– /A, +/B +/A, – +/A, – /B

0101

0 0m 1 10m1

RE-ANSWER

LOW

– /A, +/B

0001

00m1

CLEAR FORWARD

HIGH

– /A, +/B

1001

00m1/10m1

DI A LL I NG POLARITY REVERSAL RECALL

m: ‘1’ = metering signal (12kHz) on, ‘0’ = metering signal off

Table 1

S10002883RE

Normal call, direction from SUB (PBX/SUB) to exchange

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1

TU 21206 / TS 25060.00 Criterion tables

State

Loop impedance

Feed condition

Transmit bits abcd

Receive bits abcd

IDLE

HIGH

+/A, – /B

1001

1001

RINGING

HIGH

+/A, – (RING)/B 1)

1001

0001

RINGING PAUSE

HIGH

+/A, – /B

1001

1001

RINGTRIP

LOW

+/A, – /B

0001

0001/1001

CALL ESTABLISHED

LOW

+/A, – /B

0001

1001

GROUND

+/A, – /B

0101

1001

timed HIGH

+/A, – /B

1001

1001

HIGH

+/A, – /B

1001

1001

GROUND KEY RECALL CLEAR BACK 1)

Ringing can also be transmitted about earth.

Table 2

2

Normal call, direction from exchange to SUB (PBX/SUB)

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S10002883RE

2

Hot Line calls

State

Loop impedance

Feed condition

Transmit bits abcd

Receive bits abcd

IDLE

HIGH

+/A, – /B

1001

1001

SEIZE

LOW

+/A, – /B

0001

1001

CALLED SUB. ANS.

LOW

+/A, – /B

0001

0001

CLEAR BACK

LOW

+/A, – /B

0001

1001

GROUND KEY

GROUND

+/A, – /B

0101

0001/1001

RE-ANSWER

LOW

+/A, – /B

0001

0001

CLEAR FORWARD

HIGH

+/A, – /B

1001

0001/1001

RECALL RINGING

HIGH

+/A, – (RING)/B 1)

1001

0101

RELEASE

HIGH

+/A, – /B

1001

1001

1)


Table 3

Hot Line call, outgoing call from SUB

State

Loop impedance

Feed condition

Transmit bits abcd

Receive bits abcd

IDLE

HIGH

+/A, – /B

1001

1001

RINGING

HIGH

+/A, – (RING)/B 1)

1001

0001

RINGING PAUSE 2)

HIGH

+/A, – /B

1001

0001

RINGTRIP

LOW

+/A, – /B

0001

0001

CALL ESTABLISHED

LOW

+/A, – /B

0001

0001

CLEAR FORWARD

HIGH

+/A, – /B

0001

1001

GROUND KEY

GROUND

+/A, – /B

0101

0001/1001

CLEAR BACK

HIGH

+/A, – /B

1001

0001

RECALL RINGING

HIGH

+/A, – (RING)/B 1)

1001

0101

RELEASE

HIGH

+/A, – /B

1001

1001

1)


2)

Ringing cadence (1second/4seconds) is generated in the signalling program.

Table 4

S10002883RE

Hot Line call, incoming call to SUB

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3

TU 21206 / TS 25060.00 Criterion tables

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S10002883RE

Glossary

Glossary

Abbreviations 2w

Two-wire

GND

Ground

AC

Alternating Current

HEX

Hexadecimal

AIS

Alarm Indication Signal

HW

Hardware

ASCII

American Standard Code for Information Interchange

ID

Identification

imped

Impedance

B1

Signalling voltage 1

ITU-T

B2

Signalling voltage 2

CEPT

Conf èrence Europèenne des Administrations des Postes et des Tèlècommunications

International Telecommunications Union – Telecommunication Standardization Sector (Former CCITT)

Ch, ch

Channel

LED

Light-emitting Diode

CODEC

Coder – Decoder

MUX

Multiplexer

DC

Direct Current

NR1-4

Jumper connector 1-4

D-D

Digital-to-Digital

P1

Unit’s front connector

DEC

Decimal

PB1

Unit’s back connector

DM 2

Nokia’s 2 Mbit/s Primary Multiplex Equipment

PBX

Private Branch Exchange

PC

Personal Computer

PCM

Pulse Code Modulation

RG1

Ringing voltage line

RG_ref

Ringing voltage reference

rms

Root Mean Square

Rx

Receive direction

SLIC

Subscriber Line Interface Circuit

STE

Service Terminal Emulator

SUB

Subscriber

DM 2+

Nokia’s 2 Mbit/s Primary Multiplex Equipment

DM 2-MUX

The main unit of DM 2

DTMF

Dual Tone Multi Frequency

EEPROM

Electronically Erasable Programmable Read Only Memory

EMC

Electromagnetic Compatibility

EPROM

Erasable Programmable Read Only Memory

Eq

Equipment

T

ETSI

European Telecommunications Standards Institute

Unit of width, 5.08 mm (in mechanics)

TS

Time Slot

EXCH

Exchange

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Glossary-1

TU 21206 Glossary

Tx

Transmit direction

u

Unit; number of unit slot

U

Unit of height, 44.45 mm (in mechanics)

VNB

Negative battery voltage

Glossary-2

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C33561006SE_A0

Glossary

Terms alarm indication signal (AIS)

A signal which replaces the normal traffic signal when a maintenance alarm indication has been activated. backplane

Printed circuit board of a subrack or cartridge, where the plug-in units are connected. Also known as motherboard . balance impedance

Impedance used to balance against the real impedances on the line and terminal equipment, and to reduce echo. cartridge

A mechanical housing that contains plug-in units. They fit in cartridge-carrying mounting frames or slim racks, and come in two different widths. A 20 T cartridge can house four and a 40 T cartridge eight plug-in units of Euro-2 size. commissioning

Actions that are needed when the units are brought into use. These include, for example, defining identifications and basic settings for the units and storing them in a non-volatile memory. DYNANET

Nokia’s family of primary rate equipment and their tributaries used in access network. The family includes a wide range of products: primary multiplexers, branching and cross-connect equipment, line equipment for copper cables and optical fibres, HDSL line terminals, and integrated multiplexing and line equipment. fault consequence

A setting for defining how the equipment or unit reacts to certain fault conditions. hot line

A fixed connection between two telephone sets. When a subscriber lifts the receiver at one end, the telephone at the other end rings. loop start signalling

Method of signalling an off-hook condition between an analogue telephone set and switch; picking up the receiver closes a loop, allowing DC current to flow. Macro STE

A PC-based Service Terminal Emulator program for the management of the transmission equipment in a telecommunications network. Macro STE provides a possibility to record the executed menu command paths (macros) and save them on a file. The saved menu command files can be executed later as macro C33561006SE_A0

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Glossary-3

21206 (C33561.20 B0) User Manual

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