Nortel Networks BCM50 User Manual

BCM50 Installation and

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Maintenance Guide

Part No. N0027152 01
08 April 2005

2

Copyright © Nortel Networks Limited 2005

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N0027152 01N0027152 01

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PLEASE REFER TO THE NEXT PAGE

BCM50 Installation and Maintenance Guide

4

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N0027152 01

Task List

Determining DHCP server configuration and IP address . . . . . . . . . . . . . 67

To disable the DHCP server on the main unit ...............................................................69

Installing the main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

To install the rackmount shelf in an equipment rack .....................................................81

To install the BCM50 unit on the rackmount shelf .........................................................82

To install a BCM50 unit on top of another unit ..............................................................83

To install the power supply on the rackmount shelf.......................................................83

To install the patch panel (optional)...............................................................................83

To install the BCM50 wallmount bracket .......................................................................84

To install the BCM50 unit on the wallmount bracket .....................................................86

To install the WFC .........................................................................................................88

To install the BCM50 unit on a desktop or shelf ............................................................89

Installing an expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

To set GASM dip switches ............................................................................................94

To set GATM dip switches.............................................................................................94

To install a media bay module (MBM) ...........................................................................95

5

Connecting the cables to the BCM50 system . . . . . . . . . . . . . . . . . . . . . . 97

To connect an expansion unit........................................................................................99

To connect a power supply using a UPS.....................................................................101

To connect a power supply without a UPS..................................................................101

To connect the lines and extensions ...........................................................................104

To connect telephone lines to DTM, BRIM, or 4x16 MBMs.........................................105

To connect analog telephone lines to the GATM4 or GATM8 .....................................106

To connect extensions to DSM16, DSM32, ASM8, or 4x16 MBMs.............................106

To install an auxiliary ringer.........................................................................................108

To install an external paging system ...........................................................................108

To connect the music source using the music source jack .........................................110

To connect the music source using the RJ-21 telephony connector ...........................110

To connect the cables to the wiring field card (optional) .............................................111

To connect the cables to the patch panel (optional)....................................................111

Installing telephones and peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

To install the emergency telephone.............................................................................114

Installing the analog terminal adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

To connect the ATA2...................................................................................................119

To mount the ATA2 on a wall ......................................................................................119

To measure the insertion loss from the CO to the analog device................................120

To measure the insertion loss from the analog device to the CO................................121

Configuring the BCM50 system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Using Telset Administration to set the basic parameters . . . . . . . . . . . . 127

To enter the keycodes .................................................................................................128

BCM50 Installation and Maintenance Guide

6 Task List

To configure the IP address ........................................................................................128

To configure the modem..............................................................................................129

To select the region .....................................................................................................129

To select the telephony startup template and startDN ................................................130

To initialize voice mail..................................................................................................130

To create Telset user accounts ...................................................................................130

Using Element Manager to set the basic parameters . . . . . . . . . . . . . . . 133

To download and install Element Manager .................................................................134

To connect to the BCM50 system ...............................................................................134

To enter the keycodes .................................................................................................135

To configure the IP subsystem ....................................................................................135

To configure the modem..............................................................................................136

To configure the start-up template for telephony services...........................................136

To initialize voice mail..................................................................................................136

To enter a name for your system.................................................................................137

To configure the date and time settings ......................................................................138

To configure DHCP server settings .............................................................................138

To configure IP Phones ...............................................................................................139

To configure SNMP settings........................................................................................140

To configure SNMP community strings .......................................................................140

To configure the SNMP manager list...........................................................................141

To create user accounts ..............................................................................................141

Using the Startup Profile to configure parameters . . . . . . . . . . . . . . . . . 143

To download the Startup Profile template ...................................................................145

To customize a Startup Profile for your system...........................................................145

To load the Startup Profile data onto the BCM50 system ...........................................146

Completing the initial installation (optional) . . . . . . . . . . . . . . . . . . . . . . 149

To configure the MBM(s) .............................................................................................150

Connecting the BCM50 system to the LAN and WAN . . . . . . . . . . . . . . . 153

To connect the BCM50 system to the LAN .................................................................155

To connect the BCM50e main unit to the WAN ...........................................................156

To connect the BCM50a main unit to the WAN ...........................................................157

Testing basic BCM50 functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

To test the main unit ....................................................................................................159

To test the main unit (without a valid keycode) ...........................................................160

To troubleshoot the main unit ......................................................................................160

To test the expansion unit ...........................................................................................160

To troubleshoot the expansion unit .............................................................................161

To test the MBM ..........................................................................................................161

To test a station MBM..................................................................................................161

To test a trunk MBM ....................................................................................................162

To determine why an MBM does not appear in Element Manager .............................162

To determine why the ATA2 does not function............................................................162

To determine why there is no dial tone at the ATA2....................................................163

To check the ATA2 wiring............................................................................................163

To perform a Level 1 and Level 2 reset.......................................................................164

N0027152 01N0027152 01

Task List 7

Replacing a power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

To shut down the system.............................................................................................170

To remove the power supply .......................................................................................170

To connect the new power supply ...............................................................................171

Replacing a main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

To shut down the system.............................................................................................174

To disconnect the cables .............................................................................................174

To remove a rackmounted main unit ...........................................................................175

To remove a wallmounted main unit............................................................................175

To remove a desktop mounted main unit ....................................................................176

To connect the cables .................................................................................................176

To return the system to operation................................................................................177

Replacing a media bay module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

To remove the MBM ....................................................................................................180

To insert the new MBM................................................................................................181

To return the system to operation................................................................................181

Replacing an expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

To disconnect the expansion unit cables.....................................................................184

To remove a rackmounted expansion unit ..................................................................185

To remove a wallmounted expansion unit ...................................................................185

To remove a desktop-mounted expansion unit ...........................................................185

To remove the MBM ....................................................................................................186

To connect the cables .................................................................................................187

To return the system to operation................................................................................187

Replacing an internal component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

To shut down the system.............................................................................................190

To disconnect the cables .............................................................................................191

To remove a rackmounted main unit ...........................................................................191

To remove a wallmounted main unit............................................................................192

To remove a desktop-mounted main unit ....................................................................192

To open the main unit case .........................................................................................192

To remove the hard disk ..............................................................................................195

To remove the fan .......................................................................................................196

To remove the router card ...........................................................................................197

To insert the new hard disk .........................................................................................198

To insert the new fan ...................................................................................................200

To insert the new router card.......................................................................................201

To close the main unit case.........................................................................................201

To connect the cables .................................................................................................203

To return the BCM50 system to operation...................................................................203

BCM50 Installation and Maintenance Guide

8 Task List

N0027152 01N0027152 01

Contents

Regulatory information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

North American regulatory information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Canadian Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Federal Communications Commission (FCC) Notice . . . . . . . . . . . . . . . . . . . . . . 18

Ringer Equivalence Number (REN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

EMI/EMC (FCC Part 15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Important safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Enhanced 911 configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Radio-frequency interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Telecommunication registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

International regulatory information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Additional safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

ITU standardization compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

9

Chapter 1

Getting started with BCM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

About this guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

About BCM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

BCM50 key elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Symbols and conventions used in this guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

How to get help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Chapter 2

Introducing the BCM50 hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Main units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Expansion unit and media bay modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Media bay modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

BCM50 hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Rackmount shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Patch panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Wallmount bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Wiring field card (WFC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

BCM50 components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

BCM50 Installation and Maintenance Guide

10 Contents

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Power supply adapter cord (international users) . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Uninterruptable power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Hard disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

RJ-21 telephony connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Router card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Field-replaceable units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Telephones and adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Chapter 3

Viewing the BCM50 system LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

System status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

LAN port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

ADSL router LEDs (BCM50a only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Ethernet router LEDs (BCM50e only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Media bay module LEDs (expansion units only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

DTM LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

BRIM LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Chapter 4

Determining DHCP server configuration and IP address. . . . . . . . . . . . . . 67

BCM50 main unit (no integrated router) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

If an external DHCP server is not present . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

If an external DHCP server is present . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

BCM50a or BCM50e (with integrated router) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Chapter 5

Installing the BCM50 system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Chapter 6

Checking the installation prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Electrical requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Site telephony wiring requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Digital loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Analog loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

System equipment, supplies, and tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Basic hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Optional equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Other hardware and tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

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Contents 11

Chapter 7

Installing the main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Unpacking the main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Installing the BCM50 unit in an equipment rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Installing the BCM50 unit on the rackmount shelf . . . . . . . . . . . . . . . . . . . . . . . . . 81

Installing the BCM50 unit on the wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Installing the wiring field card (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Installing the BCM50 unit on a desktop or shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Next step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Chapter 8

Installing an expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Unpacking the expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Verifying the media bay module switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Installing a media bay module in an expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Installing the expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Next step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Chapter 9

Connecting the cables to the BCM50 system . . . . . . . . . . . . . . . . . . . . . . . 97

Connecting the expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Connecting the power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Connecting the lines and extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Wiring warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Connecting lines and extensions to the RJ-21 telephony connector . . . . . . . . . 104

Connecting telephone lines to the expansion units . . . . . . . . . . . . . . . . . . . . . . . 105

Connecting extensions to the expansion units . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Connecting the auxiliary equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Connecting an auxiliary ringer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Connecting an external paging system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Connecting an external music source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Next step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Chapter 10

Installing telephones and peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

System telephones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Analog terminal adapter 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Central Answering Position (CAP/eCAP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Installing an emergency telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Installing IP Phones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Installing T7406 cordless systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

BCM50 Installation and Maintenance Guide

12 Contents

Chapter 11

Installing the analog terminal adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Configuration overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Analog telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Analog data device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Installing the ATA2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Connecting the ATA2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Mounting the ATA2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Test insertion loss measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Configuring the ATA2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Chapter 12

Configuring the BCM50 system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Initial parameters overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Startup parameters overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Chapter 13

Using Telset Administration to set the basic parameters . . . . . . . . . . . . 127

Configuring the initial parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Next step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Chapter 14

Using Element Manager to set the basic parameters. . . . . . . . . . . . . . . . 133

Accessing the BCM50 system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Configuring the initial parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Configuring the startup parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Next step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Chapter 15

Using the Startup Profile to configure parameters. . . . . . . . . . . . . . . . . . 143

Startup Profile requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

Configuring basic parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Next step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Chapter 16

Completing the initial installation (optional) . . . . . . . . . . . . . . . . . . . . . . . 149

Configuring the media bay module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Configuring modem settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Checking for software updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Configuring voice mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Customizing security policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Performing a backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

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Contents 13

Chapter 17

Connecting the BCM50 system to the LAN and WAN . . . . . . . . . . . . . . . 153

Connecting the BCM50 system to the LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Connecting the BCM50 system to the WAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Next step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Chapter 18

Testing basic BCM50 functionality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Reset to factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Reset levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Activate the reset feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Chapter 19

Replacing the BCM50 system components. . . . . . . . . . . . . . . . . . . . . . . . 167

Chapter 20

Replacing a power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Preparing the system for maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Removing the power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Connect the new power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Returning the system to operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Chapter 21

Replacing a main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Preparing the system for maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Removing the main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Installing the new main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Chapter 22

Replacing a media bay module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Chapter 23

Replacing an expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Disconnecting the cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Removing the expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Removing the MBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Inserting the MBM in the new expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Installing the new expansion unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Chapter 24

Replacing an internal component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Special tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Preparing the system for maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Removing the main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

BCM50 Installation and Maintenance Guide

14 Contents

Opening the main unit case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Removing an internal component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Inserting the new component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Closing the main unit case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Installing the main unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Appendix A

RJ-21 telephony connector wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . 205

Appendix B

LAN ports wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Appendix C

WAN ports wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

Appendix D

Expansion ports wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Appendix E

DTM wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Appendix F

BRIM wiring chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Appendix G

GATM wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Appendix H

4x16 wiring charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Appendix I

DSM16 and DSM32 wiring charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Appendix J

ASM8, ASM8+, and GASM wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

Appendix K

System region attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Regional default system values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Regional language default values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Regional caller ID display formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Regional companding law . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Regional media bay module availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Regional PRI line protocol support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

ISDN line services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Define time zones by country and language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

System defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

N0027152 01N0027152 01

Contents 15

Restriction filter defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Digital trunk types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

CallPilot regions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

BCM50 Installation and Maintenance Guide

16 Contents

N0027152 01N0027152 01

Regulatory information

Refer to the following sections for regulatory information on the BCM50 system:

• “North American regulatory information”

• “International regulatory information” on page 22

North American regulatory information

This Class A device complies with Part 68 & Part 15 of the FCC Rules and ICES-003 Class A
Canadian EMI requirements. Operation is subject to the following two conditions (1) This device
may not cause harmful interference and (2) this device must accept any interference received,
including interference that may cause undesired operation.

Repairs to certified equipment should be coordinated by a representative designated by the
supplier. Any repairs or alterations made by the user to this equipment, or equipment
malfunctions, may give the telecommunications company cause to request the user to disconnect
the equipment. Users should ensure for their own protection that the electrical ground connections
of the power utility, telephone lines and internal metallic water pipe system, if present, are
connected together. This precaution may be particularly important in rural areas.

17

Caution: Users should not attempt to make such connections themselves, but

should contact the appropriate electric inspection authority, or electrician, as
appropriate.

Do not attempt to repair this equipment. If you experience trouble, write for warranty and repair
information:

USA Canada
Nortel

640 Massman Drive
Nashville, TN, USA
37210

Nortel Repair Service Centre 30
30 Norelco Drive
Weston Ontario, Canada
M9L 2X6

For warranty and repair service outside the USA or Canada, please contact your distributor.

Canadian Notice

The Industry Canada designation identifies certified equipment. This certification means that the
equipment meets telecommunications network protective, operational and safety requirements as
prescribed in the appropriate Terminal Equipment Technical Requirements document(s). The
Department does not guarantee the equipment will operate to the user's satisfaction.

BCM50 Installation and Maintenance Guide

18 Regulatory information

Federal Communications Commission (FCC) Notice

FCC registration number: This telephone equipment complies with Part 68, Rules and
Regulations, of the FCC for connection to the Public Switched Telephone Network.

Your connection to the Public Switched Telephone Network must comply with these FCC rules:

• Before installing this equipment, users should ensure that it is permissible to be connected to

the facilities of the local telecommunications company. The equipment must also be installed

using an acceptable method of connection. The customer should be aware that compliance

with the above conditions may not prevent degradation of service in some situations. See

installation instructions for details.

• Use only an FCC Part 68-compliant Universal Service Order Code (USOC) network interface

jack, as specified in the installation instructions, to connect to the Public Switched Telephone

Network.

• If the equipment causes harm to the telephone network, the telephone company will notify you

in advance that temporary discontinuance of the product may be required. But if advance

notice isn’t practical, the telephone company will notify you as soon as possible. You will also

be advised of your right to file a complaint with the FCC, if you believe it is necessary.

Ringer Equivalence Number (REN)

The REN provides an indication of the maximum number of terminals allowed to be connected to
a telephone interface. The termination on an interface may consist of any combination of devices
subject only to the requirement that the sum of the RENs of all the devices does not exceed 5.

EMI/EMC (FCC Part 15)

This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

• Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance could

void the user’s authority to operate the equipment.

N0027152 01N0027152 01

Regulatory information 19

Important safety instructions

The following safety instructions cover the installation and use of the Product. Read carefully and
retain for future reference.

Installation

Warning: To avoid electrical shock hazard to personnel or equipment damage

observe the following precautions when installing telephone equipment:

• Never install telephone wiring during a lightning storm.

• Never install telephone jacks in wet locations unless the jack is
specifically designed for wet locations.

• Never touch uninsulated telephone wires or terminals unless the
telephone line has been disconnected at the network interface.

Use caution when installing or modifying telephone lines. The exclamation
point within an equilateral triangle is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions
in the literature accompanying the product.

Use

When using your telephone equipment, basic safety precautions should always be followed to
reduce risk of fire, electric shock and injury to persons, including the following:

1 Read and understand all instructions.
2 Follow the instructions marked on the product.
3 Unplug this product (or host equipment) from the wall outlet before cleaning. Do not use

liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.

4 Do not use this product near water, for example, near a bath tub, wash bowl, kitchen sink, or

laundry tub, in a wet basement, or near a swimming pool.

5 Do not place this product on an unstable cart, stand or table. The product may fall, causing

serious damage to the product.

6 This product should never be placed near or over a radiator or heat register. This product

should not be placed in a built-in installation unless proper ventilation is provided.

7 Do not allow anything to rest on the power cord. Do not locate this product where the cord will

be abused by persons walking on it.

8 Do not overload wall outlets and extension cords as this can result in the risk of fire or electric

shock.

9 Never spill liquid of any kind on the product.
10 To reduce the risk of electric shock do not disassemble this product, but have it sent to a

qualified service person when some service or repair work is required.

BCM50 Installation and Maintenance Guide

20 Regulatory information

11 Unplug this product (or host equipment) from the wall outlet and refer servicing to qualified

service personnel under the following conditions:

a When the power supply cord or plug is damaged or frayed.
b If the product has been exposed to rain, water or liquid has been spilled on the product,

disconnect and allow the product to dry out to see if it still operates; but do not open up the
product.

c If the product housing has been damaged.
d If the product exhibits a distinct change in performance.

Caution: To eliminate the possibility of accidental damage to cords, plugs, jacks,

and the telephone, do not use sharp instruments during the assembly procedures.

Warning: Do not insert the plug at the free end of the handset cord directly into a
wall or baseboard jack. Such misuse can result in unsafe sound levels or possible
damage to the handset.

12 Save these instructions.

Use of a music source

In accordance with U.S. Copyright Law, a license may be required from the American Society of
Composers, Authors and Publishers, or similar organization if Radio or TV broadcasts are
transmitted through the Music On Hold or Background Music features of this telecommunication
system.

Nortel hereby disclaims any liability arising out of the failure to obtain such a license.

Safety

Business Communications Manager 50 (BCM50) equipment meets all applicable requirements of
both the CSA C22.2 No.60950 and UL 60950 Edition 3.

Danger: Risk of shock.
Read and follow installation instructions carefully.
Ensure the BCM50 is not powered and that all telephone/data cables are removed prior to
opening the BCM50 unit in the field.
If installation of additional hardware and /or servicing is required, disconnect all telephone
cable connections prior to unplugging the BCM50 modules.
Ensure the BCM50 is connected to a wall outlet with a third-wire protective earth
connection prior to connecting any telecommunications cables to the BCM50 main unit or
expansion units.

N0027152 01N0027152 01

Caution: Only qualified persons should service the system.
The installation and service of this hardware is to be performed only by service personnel
having appropriate training and experience necessary to be aware of hazards to which they
are exposed in performing a task and of measures to minimize the danger to themselves or
other persons.
Electrical shock hazards from the telecommunication network and AC mains are possible
with this equipment. To minimize risk to service personnel and users, the BCM50 system
must be connected to an outlet with a third-wire ground.
Service personnel must be alert to the possibility of high leakage currents becoming
available on metal system surfaces during power line fault events near network lines.
These leakage currents normally safely flow to Protective Earth ground through the power
cord. Therefore, it is mandatory that connection to an earthed outlet is performed first and
removed last when cabling to the unit. Specifically, operations requiring the unit to be
powered down must have the network connections (central office lines) removed first.

Enhanced 911 configuration

Warning:

Local, state and federal requirements for Emergency 911 services support by Customer
Premises Equipment vary. Consult your telecommunication service provider regarding
compliance with applicable laws and regulations.

Regulatory information 21

Radio-frequency interference

Warning: Equipment generates RF energy.

This equipment generates, uses, and can radiate radio-frequency energy. If not installed
and used in accordance with the installation manual, it may cause interference to radio
communications. It has been tested and found to comply with the limits for a Class A
computing device pursuant to Part 15 of the FCC Rules and with ICES.003, CLASS A
Canadian EMI Requirements. Operation of this equipment in a residential area is likely to
cause interference, in which case the user, at his or her own expense, will be required to
take whatever measures may be required to correct the interference.

Telecommunication registration

BCM50 equipment meets all applicable requirements of both Industry Canada CS-03 and US
Federal Communications Commission (FCC) Part 68 and has been registered under files Industry
Canada 332D-5980A and FCC US: AB6KF15B20705 (key system), US: AB6MF15B20706
(hybrid system), and US: AB6PF15B23740 (PBX system). Connection of the BCM50 telephone
system to the nationwide telecommunications network is made through a standard network
interface jack that you can order from your local telecommunications company. This type of
customer-provided equipment cannot be used on party lines or coin lines.

BCM50 Installation and Maintenance Guide

22 Regulatory information

Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. The customer should be aware that compliance with the above
conditions may not prevent degradation of service in some situations.

Repairs to certified equipment should be made by an authorized maintenance facility designated
by the supplier. Any repairs or alterations made by the user to this equipment, or equipment
malfunctions, may give the telecommunications company cause to request the user to disconnect
the equipment. Users should ensure for their own protection that the electrical ground connections
of the power utility, telephone lines and internal metallic water pipe system, if present, are
connected together. This precaution may be particularly important in rural areas.

Caution: Users should not attempt to make such connections themselves, but should
contact the appropriate electric inspection authority, or electrician.

International regulatory information

The CE Marking on this equipment indicates compliance with the following:
This device conforms to Directive 1999/5/EC on Radio Equipment and

Telecommunications Terminal Equipment as adopted by the European
Parliament And Of The Council.

This is a class A product. In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.

Hereby, Nortel declares that BCM50 units, with Model No. NT9T61XX, NT9T62XX,
NT9T64XX, and NT9T65XX, are in compliance with the essential requirements and other
relevant provisions of Directive 1999/5/EC.

Information is subject to change without notice. Nortel reserves the right to make changes in
design or components as progress in engineering and manufacturing may warrant. This equipment
has been tested and found to comply with the European Safety requirements EN 60950 and EMC
requirements EN 55022 (Class A) and EN 55024. These EMC limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial and light industrial environment.

Warning:

This is a class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures. The
above warning is inserted for regulatory reasons. If any customer believes that they have
an interference problem, either because their Nortel product seems to cause interference
or suffers from interference, they should contact their distributor immediately. The
distributor will assist with a remedy for any problems and, if necessary, will have full
support from Nortel.

N0027152 01N0027152 01

Safety

Regulatory information 23

Warning:

Only qualified service personnel may install this equipment. The instructions in this
manual are intended for use by qualified service personnel only.

Warning: Risk of shock.

Ensure the BCM50 is unplugged from the power socket and that any telephone or
network cables are unplugged before opening the BCM50.

Read and follow installation instructions carefully

Warning: Only qualified persons should service the system.

The installation and service of this hardware is to be performed only by service
personnel having appropriate training and experience necessary to be aware of hazards
to which they are exposed in performing a task and of measures to minimize the danger
to themselves or other persons.

Electrical shock hazards from the telecommunication network and AC mains are
possible with this equipment. To minimize risk to service personnel and users, the
BCM50 system must be connected to an outlet with a third-wire Earth.

Service personnel must be alert to the possibility of high leakage currents becoming
available on metal system surfaces during power line fault events near network lines.
These leakage currents normally safely flow to Protective Earth through the power cord.
Therefore, it is mandatory that connection to an earthed outlet is performed first and
removed last when cabling to the unit. Specifically, operations requiring the unit to be
powered down must have the network connections (exchange lines) removed first.

Additional safety information

The following interfaces (TNV) can be connected to the Public Switched Telephone Network in
accordance with Nortel and the local carriers installation requirements:

• BCM50, CSC GATi Ports

• BCM50, CSC ADSL Port option

• Expansion Unit, Digital Trunk Module (T1/E1/ISDN)

• Expansion Unit, Global Analog Trunk Module 4 and 8 Port (Loop Start)

• Expansion Unit, CTM4/8 (Loop Start)

• Expansion Unit, 4x16 (Loop Start)

• Expansion Unit, BRIM (ST configuration)

BCM50 Installation and Maintenance Guide

24 Regulatory information

The following interfaces are designated as Safety Extra Low Voltage (SELV) and cannot be
connected to unprotected plant wiring.

• BCM50, CSC Page Port

• BCM50, CSC Auxiliary Ringer Port

• BCM50, CSC Music On-Hold Port.

• BCM50, CSC Relay Port

• BCM50, CSC USB Port

• BCM50, CSC Ethernet Port including optional Ethernet Hub Ports

ITU standardization compliance

The following list provides voice/data applications and telephony support for BCM50:

• G.711 and G.729AB codecs

• V.27ter, V.29, and V.17 data modem modulation supported (T.38 fax control gateway)

•G3 fax

• T512.1 (Type 1 Receiver DTMF)

•G.168

•H.323

•Q.931

N0027152 01N0027152 01

Chapter 1

Getting started with BCM50

This section contains information on the following topics:

• “About BCM50”

• “Symbols and conventions used in this guide” on page 28

• “Related publications” on page 29

• “How to get help” on page 31

About this guide

The BCM50 Installation and Maintenance Guide describes how to install, configure, and maintain
the BCM50 system.

25

Purpose

The concepts, operations, and tasks described in the guide relate to the hardware of the BCM50
system. This guide provides task-based information on how to install the hardware components
and perform basic configuration tasks.

Use the Nortel Element Manager (EM), Startup Profile, and Telset Administration to configure
various BCM50 parameters.

In brief, the information in this guide explains:

• Installing hardware components

• Connecting to the LAN and WAN

• Configuring basic parameters

• Replacing components

• Testing the system

Audience

The BCM50 Installation and Maintenance Guide is directed to installers responsible for installing,
configuring, and maintaining BCM50 systems.

To use this guide, you must:

• be an authorized BCM50 installer/administrator within your organization

• know basic Nortel BCM50 terminology

• be knowledgeable about telephony and IP networking technology

BCM50 Installation and Maintenance Guide

26 Chapter 1 Getting started with BCM50

Organization

This guide is organized for easy access to information that explains the concepts, operations, and
procedures associated with the BCM50 system.

About BCM50

The Business Communications Manager 50 (BCM50) system provides private network and
telephony management capability to small and medium-sized businesses.

The BCM50 system:

• integrates voice and data capabilities, IP Telephony gateway functions, and data-routing
features into a single telephony system

• enables you to create and provide telephony applications for use in a business environment

BCM50 key elements

BCM50 includes the following key elements:

BCM50 main units

Three types of main units are available:

• BCM50 (Telephony and basic data)
The BCM50 main unit provides call processing and simple data networking functions. It also
provides connections for telephones, Public Switched Telephone Network (PSTN) lines, and a
LAN.

• BCM50a (with ADSL Router)
The BCM50a main unit provides call processing, data routing features, and an integrated
ADSL modem. It also provides connections for internal telephones, PSTN lines, a LAN, and
an ADSL router.

• BCM50e (with Ethernet Router)
The BCM50e main unit provides call processing and data routing features. It also provides
connections for telephones, PSTN lines, a LAN, and an Ethernet router.

BCM50 hardware

In addition to the main platform configurations, the following hardware is available:

• Expansion unit: An expansion unit is designed to accommodate a media bay module (MBM).
The BCM50 main unit supports up to two expansion units.

• Small system wallmount bracket: A bracket designed for mounting the BCM50 main unit or
expansion unit to a wall. An optional wiring field card (WFC) is available with the wallmount
bracket, which provides RJ-45 connectors for all BCM50 main unit trunk and station
interfaces. The WFC includes a terminal block to connect the auxiliary equipment.

N0027152 01N0027152 01

Chapter 1 Getting started with BCM50 27

• Small system rackmount shelf: A shelf designed for mounting up to four BCM50 units into a
standard 19-inch equipment rack. An optional patch panel is available, which provides RJ-45
connectors for all BCM50 main unit trunk and station interfaces. The patch panel includes a
terminal block to connect the auxiliary equipment.

BCM50 features

BCM50 supports the complete range of IP telephony features offered by existing BCM products.
You enable the following features by entering the appropriate keycodes (no additional hardware is

required):

• VoIP Gateway (H.323): Up to 12 VoIP trunks

• VoIP Telephony Clients: Up to 32 VoIP Telephony clients, supporting the range of Nortel
IP Phones.

BCM50 applications

BCM50 also supports many of the high-value applications provided on the existing BCM
platforms.

You enable applications by entering the appropriate keycodes (no additional hardware is required).
Some applications are:

• Voice Messaging for standard voice mail and auto-attendant features

• Unified Messaging providing integrated voice mail management between voice mail and
common e-mail applications

• Fax Suite providing support for attached analog fax devices

• Voice Networking features

• LAN (computer telephony engine) CTE

BCM50 Installation and Maintenance Guide

28 Chapter 1 Getting started with BCM50

Symbols and conventions used in this guide

These symbols are used to highlight critical information for the BCM50 system:

Caution: Alerts you to conditions where you can damage the equipment.

Danger: Alerts you to conditions where you can get an electrical shock.

Warning: Alerts you to conditions where you can cause the system to fail or work

improperly.

Note: Alerts you to important information.

Tip: Alerts you to additional information that can help you perform a task.

Security Note: Indicates a point of system security where a default should be

changed, or where the administrator needs to make a decision about the level of

!

security required for the system.

Warning: Alerts you to ground yourself with an antistatic grounding strap
before performing the maintenance procedure.

Warning: Alerts you to remove the BCM50 main unit and expansion unit
power cords from the ac outlet before performing any maintenance procedure.

N0027152 01N0027152 01

Chapter 1 Getting started with BCM50 29

The following conventions and symbols are used to represent the Business Series Terminal display
and dialpad.

Convention Example Used for

Word in a special font (shown in
the top line of the display)

Underlined word in capital letters
(shown in the bottom line of a
two-line display telephone)

Dialpad buttons

Pswd:

PLAY

£

Command line prompts on display telephones.

Display option. Available on two line display
telephones
option on the display to proceed.

Buttons you press on the dialpad to select a
particular option.

. Press the button directly below the

The following text conventions are used in this guide to indicate the information described:

Convention Description

bold Courier
text

Indicates command names and options and text that you must enter.
Example: Use the
Example: Enter

info command.

show ip {alerts|routes}.

italic text Indicates book titles.

plain Courier
text

FEATURE
HOLD

Indicates command syntax and system output (for example, prompts
and system messages).

Example:

Set Trap Monitor Filters

Indicates that you press the button with the coordinating icon on
whichever set you are using.

RELEASE

Related publications

Related publications are listed below. To locate specific information, you can refer to the
Master Index of BCM50 Library.

BCM50 Core Guides

BCM50 Keycode Installation Guide (N0016865)
BCM50 Administration Guide (N0016868)
BCM50 Installation & Maintenance Guide (N0027152)
BCM50 ISDN Device Installation & Configuration Guide (N0027268)
BCM50 IP Telephone Installation and Configuration Guide (N0027269)
BCM50 Device Configuration Guide (N0027146)
BCM50 First Time Installation and Configuration Guide (N0027149)

BCM50 Installation and Maintenance Guide

30 Chapter 1 Getting started with BCM50

BCM50 LAN CTE Configuration Guide (N0027154)
BCM50 Networking Configuration Guide (N0027156)
BCM50 System Overview (N0027157)
BCM50 Analog Device Installation and Configuration Guide (N0035159)
BCM50 Telset Administration Guide (N0027176)
BCM50 Unified Messaging Installation and Maintenance Guide (N0027179)
BCM50a Integrated Router Configuration Guide (N0027181)
BCM50e Integrated Router Configuration Guide (N0027182)
BCM50 Call Detail Recording Guide (N0027926)
BCM50 Digital Telephone Installation and Configuration Guide (N0027330)
BCM50 Telephone Features User Guide (N0027160)

CallPilot and Call Center Guides

Call Center Agent Guide (N0027187)
Call Center Set Up and Operation Guide (N0027203)
Call Center Supervisor Guide (N0027206)
CallPilot 2.5 Unified Messaging Addendum (N0027223)
CallPilot 2.5 Unified Messaging User Guide for Internet Clients
CallPilot 2.5 Unified Messaging User Guide for Lotus Notes
CallPilot 2.5 Unified Messaging User Guide for Microsoft Outlook
CallPilot 2.5 Unified Messaging User Guide for Novell GroupWise
CallPilot Call Center Telephone Administration Guide (N0025637)
CallPilot Fax Set Up and Operation Guide (P0606017)
CallPilot Fax User Guide (N0027227)
CallPilot Manager Set Up and Operation Guide (N0027247)
CallPilot Message Networking Set Up and Operation Guide (N0027249)
CallPilot Message Networking User Guide (N0027253)
CallPilot Programming Record (N0027404)
CallPilot Quick Reference Card - CP Interface (N0027401)
CallPilot Quick Reference Card - NVM Interface (N0027379)
CallPilot Quick Reference Card - Remote Users (CP Interface) (N0027359)
CallPilot Quick Reference Card - Remote Users (NVM Interface) (N0027346)
CallPilot Reference Guide (N0027332)

N0027152 01N0027152 01

Chapter 1 Getting started with BCM50 31

CallPilot Telephone Administration Guide (N0027331)
Central Answering Position (CAP) User Guide (P0603480)
Hospitality Features Card (N0027326)
i2050 Software Phone Installation Guide (N0022555)
IP Phone 2001 User Guide (N0027313)
IP Phone 2002 User Guide (N0027300)
IP Phone 2004 User Guide (N0027284)
NCM Release Notes and Installation Guide (N0027265)
Personal Call Manager User Guide (N0027256)
System-wide Call Appearance (SWCA) Features Card (N0027186)
T24 KIM Installation Card (P0603481)
T7000 Telephone User Card (P0912061)
T7100 Telephone User Card (P0609621)
T7208 Telephone User Card (P0609622)
T7316 Telephone User Card (P0935248)
T7316E Telephone User Card (P0609623)
T7406 Cordless Handset Installation Guide (P0606142)
T7406 Cordless Telephone User Card (P0942259)
Using NCM to Manage BCM50 (N0027151)

How to get help

If you do not see an appropriate number in this list, go to:

www.nortel.com/cs

USA and Canada Authorized Distributors

Technical Support - GNTS/GNPS

Telephone:

1-800-4NORTEL (1-800-466-7835)
If you already have a PIN Code, you can enter Express Routing Code (ERC) 196#. If you do not

yet have a PIN Code, or for general questions and first line support, you can enter ERC 338#.

Website:

www.nortel.com/cs

BCM50 Installation and Maintenance Guide

32 Chapter 1 Getting started with BCM50

Presales Support (CSAN)

Telephone:
1-800-4NORTEL (1-800-466-7835)

Use Express Routing Code (ERC) 1063#

EMEA (Europe, Middle East, Africa)

Technical Support - CTAS

Telephone:

*European Free phone [phone]
European Alternative:

United Kingdom [phone]
Africa [phone]
Israel 800-945-9779

Calls are not free from all countries in Europe, Middle East, or Africa.
Fax:

44-191-555-7980

e-mail:

[e-mail]

CALA (Caribbean and Latin America)

Technical Support - CTAS

Telephone:

1-954-858-7777

e-mail:

[e-mail]

APAC (Asia Pacific)

Service Business Centre and Pre-Sales Help Desk:

[phone] (Sydney)

Technical Support - GNTS

Telephone:

[phone]

Fax:

[phone]

N0027152 01N0027152 01

Chapter 1 Getting started with BCM50 33

e-mail:

[e-mail]

Australia 1-800-NORTEL (1-800-667-835)
India 011-5154-2210
Indonesia 0018-036-1004
Japan 0120-332-533
Malaysia 1800-805-380
New Zealand 0800-449-716
Philippines 63-2-580-5561
Singapore 800-616-2004
South Korea 0079-8611-2001
Thailand 001-800-611-3007
All others [phone]

BCM50 Installation and Maintenance Guide

34 Chapter 1 Getting started with BCM50

N0027152 01N0027152 01

Chapter 2

Introducing the BCM50 hardware

The BCM50 is a modular telephone system that can expand as your telephony requirements grow.
Refer to the following sections for information on the BCM50 hardware components:

• “Main units”

• “Expansion unit and media bay modules” on page 38

• “BCM50 hardware” on page 46

• “BCM50 components” on page 49

• “Field-replaceable units” on page 53

• “Telephones and adapters” on page 54

Main units

35

The main hardware component in the BCM50 system is the main unit. There are three types of
main units:

• BCM50 main unit (with Telephony only)
The BCM50 main unit provides call processing and simple data networking functions. It
provides connections for 12 digital telephones, 4 (PSTN) lines, 4 analog station ports, and 4
connections for auxiliary equipment (auxiliary ringer, page relay, page output, and music
source). The BCM50 main unit does not have a router, but it does have 4 LAN ports: one is the
OAM port for technicians, and the other three are for basic LAN connectivity. See Figure 1 on

page 36.

• BCM50a main unit (with ADSL router)
The BCM50a main unit provides all of the same core functionality as the BCM50 main unit,
and it also has an integrated ADSL router for advanced data applications. For detailed
configuration information, refer to the BCM50e Integrated Router Configuration Guide
(N0027182). See Figure 2 on page 36.

• BCM50e main unit (with Ethernet router)
The BCM50e main unit provides all of the same core functionality as the BCM50 main unit,
and it also has an integrated Ethernet router for advanced data applications. For detailed
configuration information, refer to the BCM50e Integrated Router Configuration Guide
(N0027182). See Figure 3 on page 36.

Refer to Table 1 on page 37 for descriptions of the three main unit ports and connectors.
A main unit contains the following field-replaceable units:

• 1 programmed hard disk

• 1 cooling fan

• 1 router card (BCM50a and BCM50e only)

BCM50 Installation and Maintenance Guide

36 Chapter 2 Introducing the BCM50 hardware

Figure 1 BCM50 main unit ports and connectors

OAM
(port 0)

Retention clip
mounting hole

Power

LAN
(port 1)

Figure 2 BCM50a main unit

Retention clip
mounting hole

Expansion/LAN
(port 2, port 3)

Music
source

Reset
switch

ports and connectors

WAN Additional LAN

USB

RJ-21 telephony
connector

Power

OAM
(port 0)

LAN
(port 1)

Expansion/ LAN
(port 2, port 3)

Figure 3 BCM50e main unit ports and connectors

WAN Additional LAN

Retention clip
mounting hole

Power

OAM
(port 0)

LAN
(port 1)

Expansion/ LAN
(port 2, port 3)

Reset
switch

Reset
switch

Music
source

Music
source

USB

USB

RJ-21 telephony
connector

RJ-21 telephony
connector

N0027152 01N0027152 01

Chapter 2 Introducing the BCM50 hardware 37

Table 1 Main unit ports/connectors and descriptions

Port/connector Description

Power connector A barrel connector jack used to connect the power supply to the main unit.
Retention clip mounting hole A small hole into which you insert the retention clip. The retention clip secures the

OAM port (port 0) An RJ-45 jack used to connect a computer running administration software, such as

LAN port (port 1) An RJ-45 jack used to connect the customer LAN to the main unit.
Expansion/LAN ports (ports 2

and 3)

WAN port
(BCM50a and BCM50e only).

Additional LAN ports
(BCM50a and BCM50e only).

reset switch A button to activate the reset feature. Use a long thin tool to press the button.

Music source port A phono jack used to connect a music source to the main unit. If you use this port, the

USB port A USB 1.1-compatible port used to connect a USB storage device or the data

RJ-21 telephony connector An RJ-21 port used to connect telephony devices to the main unit.

power connector to the unit.

Element Manager, to the main unit.

Two RJ-45 jacks used to connect the expansion units to the main unit. The expansion
ports can also provide connections to the Ethernet switch internal to the main unit. If
the BCM50 system does not have expansion units connected to these ports, you can
use them to connect additional devices to the LAN.

Note: Keycodes are required for the expansion ports to function. If you purchase a
keycode for one expansion port only, the expansion port on the left (port 2) is active.

For BCM50a: An RJ-11 jack used to connect the BCM50a main unit to the ADSL line
provided by your Internet service provider (ISP).

For BCM50e: An RJ-45 jack you use to connect the BCM50e to the Ethernet port of a
WAN edge device (for example, an external ADSL modem or cable modem).

Note: This port is not available on the BCM50 main unit.
Three RJ-45 jacks that provide connections to the Ethernet switch in the BCM50a and

BCM50e main units. You can use these ports to connect additional devices to the
LAN.

Note: These ports are not available on the BCM50 main unit.

Warning: The reset feature erases programming information and must be used with

care.

music source connections on the RJ-21 telephony connector are disabled.

interface for an uninterruptable power supply (UPS) to the main unit. The data
interface for the UPS allows the main unit to monitor and control the UPS functions.
To connect both a USB storage device and UPS data interface, an industry-standard
USB hub (USB 1.1-compatible) is required.

Note: The USB storage device must be formatted for the FAT32 file system. If
necessary, reformat the USB storage device by plugging it into your computer’s USB
port, right-clicking the USB device icon, and selecting FAT32 reformatting. This
destroys any data you had on the USB.

Warning: External equipment connected to the auxiliary ringer, page relay, page
output, and music-on-hold interfaces must use safety extra low voltage (SELV).
All four interfaces are SELV, and the external equipment connected to these
interfaces must be SELV. If these interfaces are not SELV, you must use external
line isolation units (LIU).

BCM50 Installation and Maintenance Guide

38 Chapter 2 Introducing the BCM50 hardware

Expansion unit and media bay modules

In addition to a main unit, the BCM50 system can have up to two expansion units. An expansion
unit connects to the main unit and provides additional functionality. Refer to Figure 4 and Table 2
for expansion unit port locations and descriptions.

The expansion unit is designed to accommodate one media bay module (MBM) that enables you to
connect additional telephony equipment to the BCM50 system. The MBMs connect with external
devices to implement various types of voice trunks and stations. Refer to Table 3 on page 40 for a
list of trunk MBMs and Table 4 on page 42 for a list of station MBMs that can be used with your
BCM50 system. Refer also to Table 7 on page 54 for a complete list of MBMs with links to
additional information.

Ensure that the MBM dip switches are set correctly (see “Verifying the media bay module switch

settings” on page 93).

Figure 4 Expansion unit connections

LAN port

Retention clip
mounting hole

MBM bay

Ejector Expansion

port

Power

Table 2 Expansion unit ports/connectors and descriptions

Port/connector Description

LAN port (port 1) An RJ-45 jack used to connect the customer LAN to the main unit.

The LAN port on the expansion unit is connected to the internal Ethernet switch on
the main unit. You can use the expansion unit LAN port to connect an additional

device to the LAN.
Power connector A barrel connector jack used to connect the power supply to the expansion unit.
Retention clip mounting hole A small hole into which you insert the retention clip. The retention clip secures the

power connector to the unit.
Expansion port An RJ-45 jack used to connect the expansion unit to the main unit.
Ejector The ejector is used to remove the media bay module from the expansion unit.
MBM bay A slot into which you install an MBM.

N0027152 01N0027152 01

Chapter 2 Introducing the BCM50 hardware 39

To connect an MBM to the BCM50 system, you must install the MBM in the expansion unit, then
connect the expansion unit to the main unit. See “Installing an expansion unit” on page 91 for
more information on installing a expansion unit.

Warning: Make sure the power supply to the expansion unit is disconnected
before inserting or removing a media bay module (MBM).

The supplied Ethernet cable (shielded) connects the expansion port on the expansion unit to one of
the two expansion ports on the BCM50 main unit (see Figure 5). Expansion unit 1 is mapped to
buses 5/6 (port2), while expansion unit 2 is mapped to buses 7/8 (port 3).

Figure 5 Expansion unit and expansion connectors

Expansion unit 1 Main unit Expansion unit 2

The LAN port on the expansion unit is connected to the internal Ethernet switch on the main unit.
You can use the expansion unit LAN port to connect an additional device to the LAN.

Note: When you plug an expansion unit into the correct port on the main unit, the
LEDs on the expansion unit port light up, while the LEDs on the main unit port go
out.

Note: Keycodes are required for the expansion ports to function. If you purchase a
keycode for one expansion port only, the expansion port on the left (port 2) is
active.

Media bay modules

Buses 5/6

Buses 7/8

The media bay modules (MBM) connect with external devices to implement various types of voice
trunks and extensions. You can install one MBM in an expansion unit and you can connect up to
two expansion units to the BCM50 system.

BCM50 Installation and Maintenance Guide

40 Chapter 2 Introducing the BCM50 hardware

Note: Refer to “Regional media bay module availability” on page 231 to determine which

media bay modules and which types of trunk lines are available in your location.

The back of the MBM has a single connector that provides signaling channels, media channels,
and power to the MBM. This connector plugs into the MBM backplane in the expansion unit.
Some MBMs also have a cooling fan that runs off the MBM power source. Figure 6 shows the rear
views of the two types of MBMs.

Figure 6 Media bay module connectors (rear view)

Signaling, media, and
power connector

Signaling, media, and
power connector

Cooling fan

Trunk media bay modules

Trunk media bay modules connect telecommunications lines to the BCM50 system.

Table 3 lists the types of trunk media bay modules that are available for the BCM50 system.

Table 3 Tru nk M BM s

Module type What it does Special notes

DTM

“Digital trunk media bay module”

BRIM

“Basic rate interface media bay
module”

GATM4/GATM8

“Global Analog Trunk Module”

Connects digital public switched
telephone lines to the BCM50 system.

Connects a maximum of four ISDN BRI
S/T interfaces.

Connects either four (GATM4) or eight
(GATM8) analog public switched
telephone lines to the BCM50 system.

Can connect to one of four types of
lines: TI, North American PRI, ETSI
ISDN (E1), and European PRI (E1).

Refer to “System region attributes” on

page 229 for supported regions.

Refer to “System region attributes” on

page 229 for supported regions.

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Chapter 2 Introducing the BCM50 hardware 41

Digital trunk media bay module

The digital trunk media bay module (DTM) connects to standard digital PSTN T1/fT1, E1/fE1 or
PRI ISDN line using either a digital or PRI line. The DTM also supports DASS2, DPN22, Q.SIG,
and MCDN over ISDN:

• On North American BCM50 systems, the DTM connects a T1 or PRI circuit to the BCM50;
T1 circuits provide 24 digital channels to the PSTN and PRI circuits provide 23 digital
channels to the PSTN.

• On International BCM50 systems, the DTM connects to ETSI ISDN (E1) or PRI (EI) circuit to
a BCM50, providing a maximum of 30 digital channels to the PSTN.

The front bezel of the DTM has an RJ-48C connector that connects the DTM to the service
provider connection point. The faceplate also has a set of monitor jacks you can use to monitor the
span.

There are six additional LEDs on the front of the DTM. For information about these additional
LEDs, refer to “DTM LEDs” on page 65.

Figure 7 shows the DTM module interfaces.

Figure 7 DTM faceplate

Monitor jacks RJ-48C digital

telephone line
connector

Basic rate interface media bay module

The basic rate interface media bay module (BRIM) connects a maximum of four BRI ISDN loops
to the BCM50 system. The BRIM only recognizes the T-interface used in European networks. To
use the BRIM with the U-interface, typical in North American networks, you require an external
NT1 box to convert the U-interface to a T-interface.

Each BRI ISDN loop you connect adds two telephone lines to the BCM50 system. Therefore, each
BRIM adds a maximum of eight lines to the BCM50 system through the four RJ-48C jacks on the
faceplate. The LEDs beside each RJ-48C jack are on when the ISDN line is active. Figure 8 on

page 42 shows the BRIM faceplate LEDs and connections.

BCM50 Installation and Maintenance Guide

42 Chapter 2 Introducing the BCM50 hardware

Figure 8 BRIM faceplate

Global Analog Trunk Module

The Global Analog Trunk Module (GATM) provides an interface for four or eight analog public
switched telephone network lines. This module supports both pulse and tone dialing, as well as
Caller ID and Disconnect Supervision in selected markets throughout the world.

The GATM uses an RJ-21 connector as the trunk interface. Figure 9 shows the GATM faceplate
LEDs and RJ-21 connector. The module is available either in four-port (GATM4) or eight-port
(GATM8) configurations.

Figure 9 GATM faceplate

Station media bay modules

Station media bay modules connect telephones and analog telecommunication devices to the
BCM50 system.

Table 4 lists the available station media bay modules.

Table 4 Station MBMs (Sheet 1 of 2)

Module type What it does Special Notes

DSM16+

“Digital station media bay module”

DSM32+

“Digital station media bay module”

4x16
Combination of a CTM4 and a DSM16

“4x16 media bay module”

Connects a maximum of 16 digital
telephones to the BCM50 system.

Connects a maximum of 32 digital
telephones to the BCM50 system.

Connects a maximum of four analog
public switched telephone lines to the
BCM50 system.

Also connects a maximum of 16 digital
telephones to the BCM50 system.

Refer to “System region

attributes” on page 229 for

supported regions.

North America only.
Refer to “System region

attributes” on page 229 for

supported regions.

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Chapter 2 Introducing the BCM50 hardware 43

Table 4 Station MBMs (Sheet 2 of 2)

Module type What it does Special Notes

ASM8

“Analog station media bay modules”

GASM

“Analog station media bay modules”

Connects a maximum of eight analog
devices to the BCM50 system.

Connects a maximum of eight analog
devices to the BCM50 system.

This module provides the following
additional services: caller ID, pass
through, message waiting indication, and
disconnect supervision at the telephone.

This module also allows you to download
new firmware.

Digital station media bay module

The digital station media bay modules (DSM) support digital telephones on the BCM50 system.
This section describes the DSM16+ and DSM32+ media bay modules (see Figure 10).

The digital station media bay modules have the following characteristics:

• DSM16+ — supports 16 digital telephones through a single RJ-21 connector.

• DSM 32+ — supports 32 digital telephones through two RJ-21 connectors.

• 4x16 — supports 16 digital telephones as well as four analog public switched telephone lines.

Figure 10 DSM faceplate LEDs and connectors

North America only.
Refer to “System region

attributes” on page 229 for

supported regions.
North America only.

Refer to “System region

attributes” on page 229 for

supported regions.

DSM 16

DSM 32

4x16 media bay module

(North American systems only)

The 4x16 provides both analog trunk connections and connections to digital telephones. This
media bay module (MBM) provides connections for four analog trunk lines and 16 digital
telephones. Each of the four analog trunk lines support Caller ID and disconnect supervision. An
Aux port beside Line 1 allows you to use an analog telephony device, such as a modem, fax, or
telephone, to share the trunk.

Figure 11 on page 44 shows the 4x16 MBM. The 4x16 MBM has one RJ-21 connector and five

RJ-11 connectors on the faceplate.

BCM50 Installation and Maintenance Guide

44 Chapter 2 Introducing the BCM50 hardware

Figure 11 4x16 faceplate LEDS and connectors

Analog station media bay modules

The analog station media bay modules (ASM8, ASM8+, and GASM) can connect to a maximum
of eight analog telecommunication devices. These devices are standard analog telephones,
cordless telephones, fax machines, answering machines, or modems. The maximum speed for a
modem connection is 28.8 kbit/s.

In addition to ASM8 features, the ASM8+ and GASM offer the following features:

• Visual Message Waiting Indicator (VMWI): LED indicates to the end user that a message is
waiting.

• Disconnect supervision (Open Switch Interval (OSI) as per EIA/TIA 464): indicates to the
attached device, in an established communication, that the connected device should release the
call (see Disconnect supervision note).

• Caller ID: provides the name, phone number, and other information about the caller, to the end
user at the start of the call.

• Firmware downloading capability: allows the core to upgrade the ASM8+ and GASM
firmware at customer sites.

• Enhanced ringing capability: ASM8+ and GASM provide a ringing voltage of 2 REN/65 V
rms per port.

The ASM8, ASM8+, and GASM each has one RJ-21 connector on the faceplate. Figure 12 on

page 45 shows the GASM.

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Disconnect supervision note: When disconnect happens from the Central Office,
the ASM8+ provides an open switch interval (OSI) to the off-hook station of 850
ms (TIA/EIA 464 section 5.4.10.2.4, minimum is 600 ms) as a disconnect signal.
If the station remains on-hook after the disconnect signal, the ASM8+ disconnects
the station equipment from the network without returning a tone to it (TIA/EIA
464 section 5.4.10.2.5[1]). After the station equipment goes on-hook, the ASM8+
station interface is restored to on-hook (idle).

It is important to ensure that the device, application, or interface card connected to
an ASM8+ station interface conform to these on-hook and off-hook conditions.

Chapter 2 Introducing the BCM50 hardware 45

Figure 12 GASM faceplate LEDs and connectors

The ringer equivalency number (REN) (per port) for ASM8 is 1; the REN for ASM8+ and GASM
is 2.

Note: The termination of the analog interface can consist of any combination of devices,
subject only to the requirement that the sum of the RENs of all the devices does not exceed
the REN of the interface to which the device is connected.

Table 5 shows the specifications for ATA2, ASM8, GASM, and GASI.

Table 5 ATA2, ASM8, ASM8+, GASM, and GASI analog device specifications (Sheet 1 of 2)

Specification ATA2 ASM8 ASM8+ GASM GASI

Ringing frequency
(North America)

Ringing frequency
(Europe)

Ringing voltage (North
America)

Ringing voltage
(Europe)

Loop current 20 mA minimum 20 mA minimum 20 mA minimum 20 mA minimum 20 mA minimum
Battery feed voltage -48 V dc
FIC code OL13ABC N/A N/A N/A N/A
Ringer equivalency

number
ATA2 to BCM50 loop

resistance (cable only)

Analog loop resistance
on terminal side for
voice applications
(cable only)

20 Hz ± 1 Hz 20 Hz ± 1 Hz 20 Hz ±1 Hz 20 Hz ±1 Hz 20 Hz ±1 Hz

± 1 Hz 25 Hz ± 1 Hz 25 Hz ± 1 Hz 25 Hz ± 1 Hz 25 Hz ± 1 Hz

25 Hz

80 V rms

75 V rms +/­10%

± 10% 55 V rms ± 10% 65 V rms ± 10% 65 V rms ± 10% 65 V rms ± 10%

N/A 65 V rms

± 10% 65 V rms ± 10% 65 V rms ± 10%

± 10% -48 V dc ± 10% -29 V dc ± 10% -48 V dc ± 10% -48 V dc ± 10%

31222

135 ohms
(800 m of

0.5-mm wire or
2600 ft of 24
AWG wire)

1300 ohms
(7200 m of

0.5-mm wire or
26000 ft of 24
AWG wire)

N/A N/A N/A N/A

250 ohms (1538
m of 0.5-mm
wire or 5000 ft of
24 AWG wire)

200 ohms (1231
m of 0.5-mm
wire or 4000 ft of
24 AWG wire)

200 ohms (1231
m of 0.5-mm
wire or 4000 ft of
24 AWG wire)

200 ohms (1231
m of 0.5-mm
wire or 4000 ft of
24 AWG wire)

BCM50 Installation and Maintenance Guide

46 Chapter 2 Introducing the BCM50 hardware

Table 5 ATA2, ASM8, ASM8+, GASM, and GASI analog device specifications (Sheet 2 of 2)

Specification ATA2 ASM8 ASM8+ GASM GASI

Analog loop resistance
on terminal side for
data applications
(cable only)

Input impedance at tip
and ring

Return loss > 20 dB for 200

Insertion loss on an
internal call

Insertion loss on an
external call

MWI type (see Note) Stutter tone Stutter tone Stutter tone/

Disconnect
supervision types

Note: The MWI type depends on the country profile, and the MWI voltage shown is a maximum value.

200 ohms (1231
m of 0.5-mm
wire or 4000 ft of
24 AWG wire)

600 ohms 600 ohms 600 ohms 600 ohms 600 ohms

to 3400 Hz
(when
terminated with
600 ohms)

ATA2 to BCM50
loss 3.0 dB
dB

ATA2 to BCM50
loss 2.2 dB +/-

1.0 dB; BCM50
to ATA2 loss 0.5
dB

± 1.0 dB

N/A N/A OSI EIA/TIA 464

250 ohms (1538
m of 0.5-mm
wire or 5000 ft of
24 AWG wire)

> 20 dB for 200
to 3400 Hz
(when
terminated with
600 ohms)

ATA2 to BCM50
loss 3.0 dB

± 0.5

dB
ASM to BCM50

loss 3.0 dB +/-

1.0 dB; BCM50
to ASM loss 0.5
dB

± 1.0 dB

200 ohms (1231
m of 0.5-mm
wire or 4000 ft of
24 AWG wire)

> 20 dB for 200
to 3400 Hz
(when
terminated with
600 ohms)

ATA2 to BCM50
loss 3.0 dB

± 0.5

dB
ASM to BCM50

loss 3.0 dB +/-

1.0 dB; BCM50
to ASM loss 0.5
dB

/ Voltage MWI
(CO: 120 V)

section

4.5.10.2.4/

4.5.10.2.5.1

± 1.0 dB

200 ohms (1231
m of 0.5-mm
wire or 4000 ft of
24 AWG wire)

> 20 dB for 200
to 3400 Hz
(when
terminated with
600 ohms)

ATA2 to BCM50
loss 3.0 dB

± 0.5

dB
ASM to BCM50

loss 3.0 dB +/-

1.0 dB; BCM50
to ASM loss 0.5
dB

Stutter tone/
Reverse polarity/
Voltage MWI
(CO: 120 V)

OSI EIA/TIA 464
section

4.5.10.2.4/

4.5.10.2.5.1

± 1.0 dB

200 ohms (1231
m of 0.5-mm
wire or 4000 ft of
24 AWG wire)

> 20 dB for 200
to 3400 Hz
(when
terminated with
600 ohms)

ATA2 to BCM50
loss 3.0 dB

± 0.5

dB
ASM to BCM50

loss 3.0 dB +/-

1.0 dB; BCM50
to ASM loss 0.5
dB

Stutter Tone/
Reverse polarity/
Voltage MWI
(PBX: 90 V)

N/A

± 0.5

± 1.0 dB

BCM50 hardware

The following BCM50 hardware items simplify the setup and connection of the system:

• “Rackmount shelf”

• “Wallmount bracket” on page 47

• “Patch panel” on page 47

• “Wiring field card (WFC)” on page 48

Rackmount shelf

To rackmount a BCM50 unit (main unit or expansion unit), you need a rackmount shelf. The
rackmount shelf mounts in a standard 19-inch equipment rack. The BCM50 unit then clips into the
tabs on the rackmount shelf. These tabs prevent the unit from sliding around or falling off the
shelf.

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Chapter 2 Introducing the BCM50 hardware 47

If the BCM50 system includes additional units, you can clip another unit to a second set of tabs on
the rackmount shelf. You can clip additional units to tabs on the top of the other units (see Figure

13).

Figure 13 Rackmount shelf installed in equipment rack

Patch panel

The BCM50 patch panel simplifies the connections of lines and extensions to the main unit. The
BCM50 patch panel installs into the rackmount shelf in a standard equipment rack and connects to
the RJ-21 telephony connector using a user-supplied RJ-21 cable (see Figure 14).

Figure 14 Patch panel connectors

01 02 03 04

01 02 0 3 04 01 0 2 03 04 09 10 11 1205 06 07 08

Wallmount bracket

To wallmount a BCM50 unit (main unit or expansion unit), you need a wallmount bracket. The
wallmount bracket is attached to the wall, and the unit is connected to the wallmount bracket. If the
BCM50 system includes additional units, you need a wallmount bracket for each unit.

Each wallmount bracket includes a cable management tray that you use to store and organize the
cables connected to the BCM50 units (see Figure 15 on page 48).

BCM50 Installation and Maintenance Guide

48 Chapter 2 Introducing the BCM50 hardware

Figure 15 Wallmount bracket

Wiring field card (WFC)

The wiring field card (WFC) simplifies the connections of lines and extensions to the main unit.
The WFC installs into the cable management tray of the wallmount bracket and connects to the
RJ-21 telephony connector through a 50-pin header.

The WFC contains 12 eight-pin modular jacks for digital stations, 4 eight-pin modular jacks for
analog trunks, and 4 eight-pin modular jacks for analog stations. The eight-pin modular jacks
accept RJ-45 or RJ-11 modular plugs.

There is also a terminal block for connecting auxiliary equipment and a 50-pin header to connect
to the BCM50 (see Figure 16).

Figure 16 Wiring field card

Te r m in a l
block

Connectors for
digital stations

Connectors
for analog
trunks

50-pin header

Connectors
for analog
stations

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BCM50 components

Refer to the following sections for descriptions of the BCM50 components:

• “Power supply”

• “Power supply adapter cord (international users)”

• “Uninterruptable power supply” on page 50

• “Hard disk” on page 51

• “Router card” on page 53

• “Cooling fan” on page 51

• “RJ-21 telephony connector” on page 52

Power supply

The power supply is an external device that connects to the BCM50 units (see Figure 17). You
must have one power supply for each unit in your BCM50 system.

Figure 17 BCM50 power supply

Chapter 2 Introducing the BCM50 hardware 49

To B CM5 0
unit

Power supply
cord

Power supply
cable (NA shown)

To wa ll
outlet

A BCM50 power supply is included with each main unit and expansion unit.
In addition, international (non-North American) users require a power supply adapter cord for

each main unit and expansion unit.

Power supply adapter cord (international users)

The power supply adapter cord is for international (non-North American) BCM50 users. It
connects to the power supply on one end and to the (C-14) BCM50 power bar on the other end.

You require one power supply adapter cord for each power supply you want to connect to the
power bar.

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50 Chapter 2 Introducing the BCM50 hardware

Uninterruptable power supply

An uninterruptable power supply (UPS) is an optional device that maintains continuous operation
during power interruption or failure conditions. The UPS provides power source monitoring and
battery backup activation so that critical BCM50 functionality is maintained.

In a power failure situation, the UPS provides sufficient time to either correct the problem or
activate a contingency plan to sustain services. The UPS is configured to perform a graceful
shutdown of the BCM50 two minutes before the UPS battery power is drained.

The BCM50 supports American Power Conversion (APC) UPS devices that use a USB control
interface. These include the APC UPS-Smart family (for example, UPS-Smart 750, UPS-Smart

1000) and UPS-Back family (for example, UPS-Back 500 ES, UPS-Back 350 ES). The UPS

control software enables the configuration of various operational settings.

Note: For the UPS to function correctly, it must be connected before the BCM50
system is powered up. If you connect a UPS to a running system, the UPS will not
function.

The USB port on the UPS uses a different communication speed than the USB port on the BCM50
system. Due to this difference, you must use an industry-standard USB hub (USB 1.1-compatible)
to connect the UPS data connection to the BCM50 system. The USB hub not only provides
additional USB ports, it also converts the data communication speed so the UPS and BCM50
system can communicate properly.

On BCM50 systems with more than one unit, the power supplies for all of the units must be
connected to a single UPS.

The interaction between the UPS and the BCM50 occurs in three stages:
1 Configuration — This stage sends configuration information to the UPS device and requires

minimal user interaction.

2 Monitoring — This stage is a steady-state, periodic monitoring cycle where the BCM50 reads

the status of the UPS. This stage requires minimal user interaction.

3 Failure condition — This stage initiates an action when a threshold value is surpassed.
The BCM50 system requires user interaction in the case of a planned system shutdown. You must

manually power down the UPS and the BCM50 main unit when performing a system shutdown.
The UPS feature is supported in all markets (110~120V and 220~240V power standards).

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Chapter 2 Introducing the BCM50 hardware 51

Hard disk

Each main unit contains a single hard disk and a hard disk bracket to install it in the main unit (see

Figure 18).

For installation and replacement instructions, refer to “Replacing an internal component” on page

189.

Figure 18 Hard disk and bracket

Hard disk
bracket

Hard disk

Cooling fan

The main units have a single cooling fan. The expansion unit has two cooling fans (see Figure 19).

Figure 19 Cooling fan

fan connector

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52 Chapter 2 Introducing the BCM50 hardware

The cooling fan mounts in the back of the BCM50 enclosure.
For information about how to install or replace the cooling fan, refer to “Replacing an internal

component” on page 189.

RJ-21 telephony connector

Use the RJ-21 telephony connector to connect a 25-pair (RJ-21) cable to the main unit. These 25
pairs of wires are then connected to the following telephony devices (see “RJ-21 telephony

connector wiring chart” on page 205):

• 4 analog lines

Use these connections for analog trunks from the Public Switched Telephone Network
(PSTN).

• 4 analog telephones
Use these connections for analog telephony devices such as single line telephones, fax
machines, and modems.

• Auxiliary ringer
Use this connection for an auxiliary ringer (customer supplied). The BCM50 system uses the
auxiliary ringer to control the cadence of an auxiliary ringer. You must use this output in a low
current, low voltage application only. Do not use this output for switching the auxiliary ringer
directly.

• Page output
Use this connection to connect an internally generated voice paging signal to an external
paging amplifier (customer supplied).

• Page relay
When you use the page output to connect an external paging amplifier, you also use the page
relay. The page relay connects to a floating relay contact pair. The BCM50 system uses the
page relay to control the external paging amplifier.

• Music input
Use the Music input to connect an external music source that supplies a signal to held lines
(music on hold) or telephone speakers (background music). The input source can be any
available radio or music source approved for connection to the network. If you use this
connection, do not use the Music input jack on the main unit faceplate.

• 12 digital telephones
Use these connections for digital telephones. For a list of digital telephones that are compatible
with the BCM50 system, refer to “Telephones and adapters” on page 54.

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Warning: External equipment connected to the auxiliary ringer, page relay, page output,
and music-on-hold interfaces must use safety extra low voltage (SELV).
All four interfaces are SELV and the external equipment connected to these interfaces
must be SELV. If these interfaces are not SELV, you must use external line isolation units
(LIU).

Chapter 2 Introducing the BCM50 hardware 53

Note: The analog trunk interfaces and analog telephony device interfaces on the RJ-21

telephony connector are compatible with the North American telephony interface
standards only.
If your BCM50 system is in a country that uses a different telephony standard, you must
use media bay modules for your analog trunks and media bay modules or ATAs for your
analog telephony devices.

Router card

The BCM50e main unit has a router card that uses an Ethernet interface to connect to a WAN edge
device (for example, an external ADSL modem or cable modem).

The BCM50a main unit has a router card that uses an ADSL interface to connect the BCM50
system to the Internet Service Provider (ISP).

For information about replacing the router card, refer to “Replacing an internal component” on

page 189.

Field-replaceable units

Table 6 and Table 7 on page 54 provide a list of field-replaceable units (FRU) and media bay

modules (MBM) for the BCM50 system. Use these tables as references when you need to order,
replace, or install hardware components. The tables provide references to the component
descriptions and installation procedures.

Note: The product engineering code (PEC) can change over time; consult the
catalog for the latest information.

Table 6 Field-replaceable units

Component description FRU Description Replacement procedure

Router card with Ethernet connector “Router card” “Replacing an internal component”
Router card with ADSL interface “Router card” “Replacing an internal component”
Hard disk, programmed “Hard disk” “Replacing an internal component”
Power supply “Power supply” “Replacing a power supply”
Cooling fan “Cooling fan” “Replacing an internal component”

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54 Chapter 2 Introducing the BCM50 hardware

Table 7 Media bay modules

Component description FRU Description Installation procedure

DTM MBM “Digital trunk media bay module” “To install a media bay module

(MBM)”

BRIM MBM “Basic rate interface media bay

module”

DSM16+ MBM “Digital station media bay module” “To install a media bay module

DSM32+ MBM “Digital station media bay module” “To install a media bay module

4x16 MBM “4x16 media bay module” “To install a media bay module

ASM8 MBM “Analog station media bay modules” “To install a media bay module

GASM MBM “Analog station media bay modules” “To install a media bay module

GATM MBM “Global Analog Trunk Module” “To install a media bay module

“To install a media bay module
(MBM)”

(MBM)”

(MBM)”

(MBM)”

(MBM)”

(MBM)”

(MBM)”

Telephones and adapters

The telephony components perform call processing and connect the telephones or peripheral
telephony equipment, such as fax machines, to the Public Switched Telephone Network (PSTN)
lines. They also process telephony information that has been received through an IP link.

Business telephones and adapters connect to the RJ-21 telephony connector on the main unit and
to the MBMs installed in the expansion units. The BCM50 system supports Business Series
Terminal sets, IP Telephony-based sets, and analog telephony devices. The IP Phones 2001, 2002,
2004, and the IP Softphone 2050 have separate installation and operations documentation. Refer to
the documentation main index.

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Chapter 2 Introducing the BCM50 hardware 55

The following telephones and devices can be used with the BCM50 system:

Digital Phone 7100 — one-line display, one memory button
without indicator.

Digital Phone 7000 (not shown) (International only) — four
memory buttons, without display or indicators.

Digital Phone 7208 — one-line display, eight memory buttons
with indicators.

Digital Phone 7316 — two-line display, three display
buttons, 16 memory buttons with indicators, eight
memory buttons without indicators. Supports separate
mute key and a headset key under the dial pad.

Digital Phone 7316E — two-line display, three display
buttons, 16 memory buttons with indicators, eight
memory buttons without indicators. Handsfree, mute,
and headset buttons are located under the dial pad. The
default button assignment for the 7316E is different than
the 7316.

Digital Phone 7316E + Key Indicator Module
(KIM) — all the features of the 7316E plus 24

extra memory buttons with indicators, per KIM.
Can be configured as an enhanced central
answering position (CAP) that supports line and
hunt group appearances (the eKIMs), or as an
ordinary CAP that only supports memory button
programming (the OKIMs). Supports a maximum
of four eKIMs and up to nine OKIMS.

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56 Chapter 2 Introducing the BCM50 hardware

Digital Phone 7406 Cordless Telephone system — provides cordless mobility in a
small office environment. Each base station supports three telephones. Function is
based on the 7316 telephone. The base station connects to a digital station media bay
module on the system.

Provides six memory buttons with indicators and a two-line display with three
display buttons.

For installation instructions, refer to the T7406 Cordless Telephone Installation
Guide.

IP Phone 2004 — connects through an IP link to the BCM50.
Has 6-line text display with a row of display keys on the
eighth display line. Also has six memory keys with indicators.
The 2004 can be used to call through any type of BCM50 line.

IP Phone 2001 (not shown) — connects through an IP link to
the BCM50. Has single-line text display with a row of display
keys on the second display line. The IP Phone 2001 can be
used to call through any type of BCM50 line.

ABC DEF

1 2 3

GHI JKL MNO

4 5 6

PQRS TUV WXYZ

7 8 9

0

#

IP Phone 2002 (not shown) — connects through an IP link to
the BCM50. Has two-line text display with a row of display
keys on the third display line. Also has four memory keys with
indicators. The IP Phone 2002 can be used to call through any
type of BCM50 line.

IP Softphone 2050 (not shown) — provides Voice Over IP (VoIP) services using a telephony
server and your company’s Local Area Network (LAN).

Audio Conference Unit (ACU) — provides audio conferencing. The
keypad provides many of the set features of the basic Business Series
telephones without display or memory buttons. This set comes with three
microphones. Installation instructions are provided with the ACU.

Note: Nortel provides limited support for legacy Norstar telephones.

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Chapter 2 Introducing the BCM50 hardware 57

Accessories

The following accessories can be used with the BCM50 system:
Station auxiliary power supply (SAPS) — provides power for the central answering position

(CAP) when the 7316E is connected to five or more KIMs. Can also be used to extend the loop
length between a telephone or terminal and the BCM50 system from 1,000 to 2,600 feet. You must
use a dedicated cable to connect the two locations.

Analog Terminal Adapter 2 (ATA2) — converts digital signals to analog signals to allow
communication with analog devices such as fax machines, modems and answering machines. The
ATA2 supports a maximum transmission rate of 28.8 kbit/s. With a single-line telephone, the
ATA2 supports a long-loop configuration.

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58 Chapter 2 Introducing the BCM50 hardware

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Chapter 3 Viewing the BCM50 system LEDs 59

Chapter 3

Viewing the BCM50 system LEDs

This section describes the BCM50 system LEDs.
Refer to the following sections for information on the BCM50 system LEDs:

• “System status LEDs”

• “LAN port LEDs” on page 60

• “ADSL router LEDs (BCM50a only)” on page 62

• “Ethernet router LEDs (BCM50e only)” on page 63

• “Media bay module LEDs (expansion units only)” on page 64

System status LEDs

The two system status LEDs on the BCM50, BCM50a, and BCM50e main units, show the current
state of the BCM50 system.

You can view the system status LEDs on the faceplate and on the top of the main unit (see Figure

20). The bottom LED is the power LED, and the top LED is the status LED. Under normal

operating conditions, both LEDs are solid green.

Figure 20 Location of system status LEDs on a main unit

Status LED

Power LED

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60 Chapter 3 Viewing the BCM50 system LEDs

Table 8 describes the meaning of the system status LEDs after the system has been booted up and

is in service.

Table 8 System status LEDs states and descriptions

Power

Solid Green Solid Green Normal operation
Solid Green Solid Red There is a Major or Critical alarm on the BCM50.

Off Off No power to BCM50

Status

Description

The status LED must be cleared using Element Manager Alarm Panel.
The LED does not clear itself.

Refer to the BCM50 Administration Guide (N0016868) for more
information.

During BCM50 system startup or reboot, the system status LEDs move through a sequence of state
changes. In general, if either the power LED or status LED is yellow, the system is initializing and
is not ready for service. Table 9 shows the key states indicating service availability.

Table 9 System status LEDs during startup or reboot

Power

Solid yellow Any System initializing; not ready for service.
Flashing or solid

green
Flashing green Flashing green BCM50 telephony services are available, including IP telephony and

Solid Green Flashing green Administrator can log into BCM50 with Element Manager.
Solid Green Solid green All BCM50 services are functioning, and the system is ready for normal

Status

Flashing or
solid yellow

Description

System initializing; not ready for service.

voice mail.

use.

LAN port LEDs

Each LAN port on the main unit and expansion unit has two LEDs. These LEDs indicate the status
of the connection for that LAN port. Figure 21 on page 61 shows the location of these LEDs on the
BCM50 units.

Note: The expansion ports located on the main unit also function as LAN ports.
The expansion port LEDs indicate LAN activity only. The LEDs do not indicate
expansion unit presence. The LEDs do not light up.

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Figure 21 LAN port LED locations

Router card LAN ports

Chapter 3 Viewing the BCM50 system LEDs 61

LAN port

LAN port LEDs

Expansion port

LAN ports

Expansion/
LAN ports

Table 10 describes the possible LED states for the LAN ports LEDs.

Table 10 LAN port and expansion port LED indicators

LED Status Description

Yellow On The LAN port is operating at 10 Mb/s.
Green On The LAN port is operating at 100 Mb/s.
Both LEDs Off No connection.
Any LED Flashing The LAN port is sending or receiving network data. The frequency of the flashes

increases with increased traffic.

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62 Chapter 3 Viewing the BCM50 system LEDs

ADSL router LEDs (BCM50a only)

The three ADSL router LEDs on the faceplate of the BCM50a main unit monitor router status,
data, and DSL. Figure 22 shows the location of the three ADSL router LEDs.

Figure 22 ADSL router LEDs on the BCM50a main unit

Router
status

Data

DSL

Table 11 describes the possible ADSL router LED states.

Table 11 ADSL router LED descriptions

LED Status Description

On The router card is functioning properly.
Router
status

Data

DSL

Off The router card is not ready or has malfunctioned.

Flashing The router card is rebooting.

Flashing The router card is sending/receiving data through the WAN port.

Off The router card is not sending/receiving data through the WAN port.

On

Off The DSL link is down.

Flashing The router card is initializing the DSL line.

The router card is linked successfully to a digital subscriber line access
multiplexer (DSLAM).

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Chapter 3 Viewing the BCM50 system LEDs 63

Ethernet router LEDs (BCM50e only)

The three Ethernet router LEDs on the BCM50e monitor the router status and the WAN port.

Figure 23 shows the location of the three Ethernet router LEDs.

Figure 23 Ethernet router LEDs on the BCM50e main unit

Router
status

WAN port
LEDs

Table 12 describes the possible Ethernet router LED states.

Table 12 LAN port LED indicators

LED Status Description

On The router card is functioning properly.

Router status

WAN port yellow On The WAN port is operating at 10 Mb/s.
WAN port green On The WAN port is operating at 100 Mb/s.
Any WAN port

LED
Both WAN port

LEDs

Off The router card is not ready or has malfunctioned.
Flashing The router card is rebooting.

Flashing

Off

The WAN port is sending or receiving network data. The frequency of the
flashes increases with increased traffic.

No connection.

WAN port LEDs

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64 Chapter 3 Viewing the BCM50 system LEDs

Media bay module LEDs (expansion units only)

The two media bay module (MBM) LEDs on a expansion unit show the power and status of the
MBM. Figure 24 shows the location of the
power and status LEDs are located in the same place on all MBMs.

Figure 24 MBM LEDs

Power Status

Table 13 describes the possible MBM LED states.

Table 13 MBM LED descriptions

(Power) and (Status) LEDs on an MBM. The

Power Status Description

Off Off The MBM does not have power, or there is a failure of the MBM power

converter.
On Off BCM50 to expansion unit failure or system initialization.
On Blinking Hardware is working, but there is an operational problem such as:

• no link to main unit is detected

• frame alignment is lost on messages from the main unit

• bandwidth not allocated

• MBM is in maintenance state

• MBM is in download state (GASM, GATM4/GATM8)

Blinking Blinking The MBM has power, but there is a hardware problem such as:

• partial failure of power converter

• thermal overload

• fan failure

On On The MBM is ready to operate.

The following MBMs have additional LEDs:

• “DTM LEDs” on page 65

• “BRIM LEDs” on page 66

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Chapter 3 Viewing the BCM50 system LEDs 65

DTM LEDs

The DTM has additional LEDs that are not on most other MBMs. Figure 25 on page 65 shows the
location of the DTM LEDs.

Figure 25 DTM LEDs

Power LED
Status LED
In service LED
Loopback test LED
Receive LEDs
Transmit LEDs

Table 14 describes the functions of the DTM LEDs.

Table 14 DTM LED functions

LED Status Descriptions

Power – Refer to “Media bay module LEDs (expansion units only)” for details.
Status – Refer to “Media bay module LEDs (expansion units only)” for details.
In service Flashing The T1, ETSI, or PRI trunks are out of service because a loopback test is

running or the DTM is initializing.
Loopback test On A continuity loopback test is running.
Receive alarm On A problem with the received digital transmission. This half-duplex link does

not work.
Receive error On A small error as a result of degraded digital transmission. Possible causes are

Transmit alarm On The DTM cannot transmit. The DTM sends an alarm indication signal (AIS) to

Transmit error On The DTM is sending a remote alarm indication (RAI) carrier failure alarm

All LEDS Flashing The DTM is initializing.

an ohmic connection, water ingress, or too long a loop.

the terminating switch. This half-duplex link does not work.

(CFA) to the terminating switch. If the transmit alarm is not on, this error

indicates a far-end or cable problem.

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66 Chapter 3 Viewing the BCM50 system LEDs

BRIM LEDs

The BRIM has one additional LED beside each RJ-48C jack. These LEDs are on when the ISDN
line is active. Figure 26 shows the location of the LEDs on a BRIM.

Figure 26 BRIM LEDs

Power LED
Status LED

Table 15 describes the functions of the BRIM LEDs.

Table 15 BRIM LED functions

LED Status Descriptions

Power – Refer to “Media bay module LEDs (expansion units only)” for details.
Status – Refer to “Media bay module LEDs (expansion units only)” for details.

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Chapter 4 Determining DHCP server configuration and IP address 67

Chapter 4

Determining DHCP server configuration and IP address

Each main unit has a DHCP server. This DHCP server supplies Nortel IP Phones and client
computers with IP addresses and connection information.

If the main unit does not have an integrated router, then the DHCP server can be configured using
Element Manager.

If the main unit has an integrated router, then the DHCP server on the main unit is disabled and the
DHCP server is configured using the Router Configuration page.

For more information on configuring the DHCP server, refer to “To configure DHCP server

settings” on page 138.

The BCM50 system can have a main unit with or without an integrated router:

• “BCM50 main unit (no integrated router)”

• “BCM50a or BCM50e (with integrated router)” on page 68

BCM50 main unit (no integrated router)

By default, the main unit is configured with a dynamic IP address, which means it requests an IP
configuration from a DHCP server.

The BCM50 main unit can have two DHCP server configurations:

• “If an external DHCP server is not present”

• “If an external DHCP server is present” on page 68

If an external DHCP server is not present

If an external DHCP server is not present, then the main unit uses the following default IP
configuration:

IP address:

Subnet mask:

Gateway:

The DHCP server on the main unit supplies IP configuration information for all IP devices (PCs
and IP Phones). It also supplies specific connection information to the IP Phones.

192.168.1.2

255.255.255.0

192.168.1.1

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68 Chapter 4 Determining DHCP server configuration and IP address

If an external DHCP server is present

Warning: The DHCP server on the main unit is enabled by default. If your

network already contains a DHCP server, then disable the DHCP server on the
main unit. Refer to “To disable the DHCP server on the main unit” on page 69 for
more information on disabling the DHCP server.

If an external DHCP is present, then the BCM50 system uses the IP configuration supplied by the
external DHCP server.

In this case, the DHCP server on the main unit only supplies IP Phones with IP configuration
information. It does not supply any other devices with IP settings. This means that the
administrator does not need to set up the external DHCP server to supply configuration settings to
the IP Phones.

The DHCP server on the main unit must configure a range of IP addresses to supply to the
IP Phones. It uses the top 20 percent of a subnet.

For example:
If the external DHCP server supplies the following IP address to the BCM50: 177.218.21.45

(subnet mask is 255.255.255.0); then the BCM50 DHCP server reserves the following range:

177.218.21.200 – 177.218.21.254.
This default range can be verified and changed using Element Manager.
The administrator must ensure that this range agrees with the network configuration — the range is

not used by the external DHCP server.

BCM50a or BCM50e (with integrated router)

By default, the BCM50a main unit or BCM50e main unit is configured with a dynamic IP address,
meaning that it requests an IP configuration from a DHCP server. Since the integrated router has a
DHCP server, this DHCP server responds to the request.

By default, the router LAN IP address is 192.168.1.1, and the IP address assigned to the BCM50
system is the first IP address in the DHCP pool. If the DHCP pool started at 192.168.1.190, then
the BCM50 is 192.168.1.190 even though the router is 192.168.1.1. So the BCM50 system
receives the IP address 192.168.1.2 (subnet mask is 255.255.255.0) from the DHCP server on the
integrated router.

The DHCP server on the integrated router supplies the information (primary and secondary TPS
server information, VLAN ids) to the IP Phones enabling them to connect to the BCM50. If the IP
address of the integrated router is changed, then the IP address reserved for the BCM50 is
automatically changed. The DHCP server on the integrated router automatically updates the S1
and S2 IP address.

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Chapter 4 Determining DHCP server configuration and IP address 69

To disable the DHCP server on the main unit

1 From the Configuration tab, click the Data Services folder to expand it.
2 Select DHCP Server from the Data Services folder.
3 Select the General Settings tab. It is normally selected by default.
4 Select Disabled from the drop-down list to disable the DHCP server.

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70 Chapter 4 Determining DHCP server configuration and IP address

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Chapter 5

Installing the BCM50 system

To install a BCM50 system, you must install a BCM50 main unit, any expansion units required,
and the telephony components.

Figure 27 and Table 16 on page 72 provide an overview of the installation process.

Figure 27 BCM50 installation overview

Chapter 5 Installing the BCM50 system 71

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72 Chapter 5 Installing the BCM50 system

Table 16 BCM50 installation overview (Sheet 1 of 2)

Tasks Description Link to

Prepare for installation Verify these requirements:

• environmental

• electrical

• site telephony wiring

Get required equipment
and tools

Inspect the components Verify that the main unit box contains all the required

Install the main unit Mount the main unit using these options:

Inspect the components Verify that the expansion unit box contains all the required

Install a media bay
module (MBM)

Install an expansion unit Mount the expansion unit using the same option as the main

Connect the cables Connect the cables between these items:

Ensure you have these items:

• basic hardware

• optional equipment

• other hardware and tools

components in good condition.

• in an equipment rack with a rackmount shelf (optional
patch panel)

• on a wall with a wallmount bracket (optional wiring field
card)

• on a desktop

components in good condition.
Follow these steps to install an MBM:

• set the MBM dip switches to factory default

• insert the MBM into the expansion unit

unit:

• in an equipment rack with a rackmount shelf (optional
patch panel)

• on a wall with a wallmount bracket (optional wiring field
card)

• on a desktop

• on top of another unit (not for wallmount option)

• main unit to expansion unit (if required)

• power supply to units (with and without a UPS)

• lines and extensions to the RJ-21 telephony connector
(optional - patch panel or WFC)

• lines and extensions to the MBMs

• auxiliary equipment to the RJ-21 telephony connector
(optional patch panel or WFC)

“Checking the installation
prerequisites” on page 75

“System equipment,
supplies, and tools” on
page 77

“Unpacking the main unit”
on page 80

“Installing the main unit”
on page 79

“Unpacking the expansion
unit” on page 92

“Verifying the media bay
module switch settings”
on page 93

“Installing the expansion
unit” on page 95

“Connecting the cables to
the BCM50 system” on
page 97

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Chapter 5 Installing the BCM50 system 73

Table 16 BCM50 installation overview (Sheet 2 of 2)

Tasks Description Link to

Install telephones and
peripherals

Install an ATA2 Perform the steps to install an ATA2:

These telephones can be installed:

• System telephones

• Emergency telephone

• IP Phones

• T7406 cordless system

• connect the ATA2

• mount the ATA2

• test insertion loss measurement

• configure the ATA2

“Installing telephones and
peripherals” on page 113

“Installing the analog
terminal adapter” on page
117

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74 Chapter 5 Installing the BCM50 system

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Chapter 6 Checking the installation prerequisites 75

Chapter 6

Checking the installation prerequisites

Before you install a main unit or expansion unit, do the following:

• Determine the location for the BCM50 units, telephones, and other equipment based on
spacing and electrical requirements.

• Order the required trunks from the central office.

• Ensure that you have all the equipment and supplies you need to install the system.

Refer to the following sections for information on BCM50 installation prerequisites:

• “Environmental requirements”

• “Electrical requirements”

• “Site telephony wiring requirements” on page 76

• “System equipment, supplies, and tools” on page 77

Environmental requirements

Ensure you meet the installation environmental requirements. The installation area must be:

• a minimum of 4 m (13 ft.) from equipment such as photocopiers, electrical motors, and other
equipment that produces electromagnetic, radio frequency, and electrostatic interference

• within 1.5 m (5 ft.) of a three-wire grounded electrical outlet

• clean, free of traffic and excess dust, dry, and well ventilated

• within the temperature ranges of 5°C and 50°C (40°F and 120°F)

• between 20% and 80% non-condensing relative humidity

• structurally strong enough and with enough space to support the BCM50 units

• a minimum of 46 cm (18 in.) from the floor

Note: The installation area must be of sufficient height from the floor to prevent water
damage.

Electrical requirements

Ensure you meet the following electrical requirements:

• Power must be supplied from a non-switched, unobstructed outlet within 1.5 m (5 ft.) of the
BCM50 units.

• The supplied power must be a dedicated 110 V to 120 V ac nominal (or 220 V to 240 V ac
nominal), 50/60 Hz, 15 A minimum service with a third-wire safety ground. The third-wire
safety ground provides shock protection and prevents electromagnetic interference.

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76 Chapter 6 Checking the installation prerequisites

Danger: Risk of electric shock

The safety of this product requires connection to an outlet with a third-wire ground. Use
only with the supplied BCM50 power supply and a three-wire power outlet.

Caution: Check ground connections

Ensure that the electrical ground connections of the power utility, telephone lines, and
internal metal water pipe system, if present, are connected together. If these ground
connections are not connected together, contact the appropriate electrical inspection
authority. Do not try to make the connections yourself.

You can connect the power supply to a power bar. The total length of the power cables from the
power supply to the electrical outlet (including power bar) should not exceed 2 m (6.5 ft.). You
must use a power bar approved by an appropriate National Test Body, with a third-wire ground. It
is recommended not to use an extension cord between the power supply and the power bar, or
between the power bar and the electrical outlet.

Site telephony wiring requirements

This section describes the requirements for wiring digital telephony devices (digital loop) and
analog telephony devices (analog loop) to the BCM50 system.

Refer to the following sections for information on the parameters for digital and analog loops:

• “Digital loop”

• “Analog loop” on page 77

Digital loop

The following parameters must be met for a digital loop:

• one, two, or three twisted-pair cables per telephone

• dc loop resistance of less than 64 Ω

• cable length (0.5 mm or 24 AWG) less than 300 m (975 ft.)

• use of a station auxiliary power supply (SAPS) for loops 300 m (975 ft.) to 1200 m (3900 ft.).
In North America, the SAPS must be a CSA- or UL-approved Class 2 power source.
In Europe, the SAPS must be a Class II power source and CE marked.

• no bridge taps

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Chapter 6 Checking the installation prerequisites 77

Analog loop

The following parameters must be met for an analog loop:

• maximum dc loop resistance of 208 Ω

• maximum cable length (0.5 mm or 24 AWG) of 1220 m (4000 ft.)

System equipment, supplies, and tools

Refer to the following sections for the equipment required to install the BCM50 system:

• “Basic hardware”

• “Optional equipment”

• “Other hardware and tools” on page 78

Basic hardware

The BCM50 system consists of some combination of the following hardware:

• main unit: BCM50, BCM50a, or BCM50e

• expansion unit

• media bay module (MBM)

• telephones

• cabling for connections between hardware units

You can connect a maximum of two expansion units to a BCM50 system. Each expansion unit can
contain one MBM.

Note: You require keycodes for some hardware to function.

Optional equipment

You can add the following equipment to the BCM50 system to support specific requirements
beyond the basic hardware:

• station auxiliary power supply (SAPS)

• key indicator module (KIM) for T7316E telephones

• analog terminal adapter 2 (ATA2) if connecting analog equipment to a digital extension line

• uninterruptable power supply (UPS)

• USB hub (required if the system uses a UPS)

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78 Chapter 6 Checking the installation prerequisites

Other hardware and tools

You need the following equipment to install a BCM50 unit:

• mounting hardware
(either a rackmount shelf, a wallmount bracket per unit, or four rubber feet per unit)

• Phillips screwdriver #2

• flat blade screwdriver

• pliers

• antistatic grounding strap

• punch-down tool

• surge protector (recommended)

• cables, 25-pair cable with right-feeding female RJ-21 connectors

• 3.5-mm mono audio jack (for external music source)

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Chapter 7

Installing the main unit

This section describes how to install the main unit. You can install the main unit in an equipment
rack, on a wall, or on a desktop.

Figure 28 shows the steps required to install the main unit.

Figure 28 Overview of installing the main unit

79

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80 Chapter 7 Installing the main unit

Refer to the following sections for information on installing the main unit:

• “Unpacking the main unit”

• “Installing the BCM50 unit in an equipment rack”

• “Installing the BCM50 unit on the wall” on page 84

• “Installing the BCM50 unit on a desktop or shelf” on page 89

Unpacking the main unit

Open the main unit box and check that you have all of the components listed below:

• one main unit (either a BCM50, a BCM50a, or a BCM50e)

• one power supply

• one power supply cable

• one power supply retention clip

• four rubber feet

• one screw to secure the RJ-21 telephony connector

• one cable tie

• a documentation CD

•the BCM50 First Time Installation and Configuration Guide (N0027149)

Visually inspect the components for any damage that may have occurred during shipping.
If you find any damage, contact your Nortel sales representative.

Installing the BCM50 unit in an equipment rack

You can install a BCM50 main unit in a standard 19-inch equipment rack along with your other
networking and telecommunications equipment.

To rackmount a BCM50 unit, you need the optional rackmount kit (NT9T6325). This kit provides
the parts to mount up to four BCM50 units into a standard 19-inch equipment rack. The BCM50
unit mounts into the tabs on the rackmount shelf. These tabs prevent the unit from sliding around
or falling off the shelf. If the BCM50 system includes additional units, another unit can be
mounted to a second set of tabs on the rackmount shelf. Any additional units can be mounted to
tabs on the top of the other units.

If you need to better secure a BCM50 unit, use the screws provided (four per unit) to screw the
BCM50 to the rack. This is known as a hardened installation. For a hardened installation, install
only two units per rack – do not stack the units.

You can also use the optional patch panel to simplify the connections to the BCM50 RJ-21
telephony connector.

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Caution: Refer to “Checking the installation prerequisites” on page 75 for acceptable
environmental conditions before selecting a location for the BCM50 system.

Chapter 7 Installing the main unit 81

Caution: To keep the BCM50 system operating at the optimal internal temperature, keep

the top, sides, and rear clear of obstructions and away from the exhaust of other equipment.

Do not place any objects, except other BCM50 units, on top of the main unit.

Use the following procedures to install a BCM50 unit in a rack:

• “To install the rackmount shelf in an equipment rack”

• “To install the BCM50 unit on the rackmount shelf”

• “To install the power supply on the rackmount shelf” on page 83

To install the rackmount shelf in an equipment rack

1 Determine the location in the rack where you want to install the BCM50 unit.
2 Position the rackmount shelf in the rack.
3 Align the holes in the rackmount shelf with the holes in the equipment rack rails.
4 Fasten the rackmount shelf to the rack using the four rack screws (supplied with the rackmount

kit). See Figure 29.

5 Continue with the next step, “Installing the BCM50 unit on the rackmount shelf”.

Figure 29 Fasten the rackmount shelf to an equipment rack

Installing the BCM50 unit on the rackmount shelf

The rackmount shelf has slots molded into its surface that allow you to attach the BCM50 units to
the shelf. By attaching the BCM50 units to these slots, you can prevent them from accidently being
knocked off the rackmount shelf.

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82 Chapter 7 Installing the main unit

If you are installing additional units, you can install a second unit on the shelf beside the first unit.
You can install another unit on top of each of the first two units. Nortel recommends a maximum
of four units per rackmount shelf.

Select your installation option:

• “To install the BCM50 unit on the rackmount shelf”

• “To install a BCM50 unit on top of another unit” on page 83

To install the BCM50 unit on the rackmount shelf

1 Place the BCM50 unit on the rack so that the feet of the unit are in the depressions in the shelf.
2 Move the unit forward until the feet touch the front side of the depressions.
3 Slide the unit back until the feet click in place on the slots in the depressions (see Figure 30).
4 If you want to further secure the unit, use four of the self-tapping screws for plastic supplied

with the rackmount kit to attach the unit to the rackmount shelf. Make sure the screw holes in
the unit are aligned with the holes in the rackmount shelf. Then drive the four screws through
the holes in the bottom of the shelf and into the screw holes in the bottom of the unit.

Caution: Use only the screws supplied with the rackmount kit (NT9T6325). Do not
replace the screws. Other screws can damage the unit.

5 Continue with the next step, “To install the power supply on the rackmount shelf” on page 83.

Figure 30 Attach the units to the rackmount shelf

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To install a BCM50 unit on top of another unit

1 Insert the power supply retention clip into the BCM50 unit.
2 Place the BCM50 unit on top of the other unit. Make sure the feet of the unit are in the slots on

the top of the unit and in front of the slots (see Figure 31).

3 Slide the unit back until it clicks in place on the slots.
4 Continue with the next step, “To install the power supply on the rackmount shelf”.

Figure 31 BCM50 unit slots and feet

Chapter 7 Installing the main unit 83

Slots Feet

To install the power supply on the rackmount shelf

1 Place the power supply behind the BCM50 units on the back of the rackmount shelf.

Make sure the power supply is on its side with the label facing the back of the shelf.

2 Use two cable ties to secure the power supply to the rackmount shelf.
3 Repeat steps 1 and 2 for each power supply you are mounting.

To install the patch panel (optional)

1 Determine the location in the rack where you want to install the patch panel.
2 Position the patch panel in the rack.
3 Align the holes in the patch panel with the holes in the equipment rack rails.
4 Fasten the patch panel to the rack using the four rack screws (supplied with the patch panel).
5 Proceed to “To connect the cables to the patch panel (optional)” on page 111.

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84 Chapter 7 Installing the main unit

Installing the BCM50 unit on the wall

To wallmount a BCM50 unit, you need a wallmount bracket. The wallmount bracket is attached to
the wall, and the BCM50 unit is connected to the wallmount bracket. If the BCM50 system
includes additional units, you need a wallmount bracket for each unit. Each wallmount bracket
includes a cable management tray that you use to store and organize the cables connected to the
BCM50 units. An optional wiring field card simplifies the cable connections for the lines and
extensions.

If desired you can install an optional plywood backboard 2 cm (3/4 in.) thick.

Caution: Refer to “Checking the installation prerequisites” on page 75 for acceptable
environmental conditions before selecting a location for the BCM50.

Caution: BCM50 units must be mounted side-by-side on the wall. DO NOT attempt to
mount units on top of each other when using the wallmount option.

Caution: To keep the BCM50 operating at the optimal internal temperature, keep the top,
sides, and rear clear of obstructions and away from the exhaust of other equipment.

Use the following procedures to install the BCM50 unit on a wall:

• “To install the BCM50 wallmount bracket”

• “To install the BCM50 unit on the wallmount bracket” on page 86

To install the BCM50 wallmount bracket

1 Use a pencil to mark the location of the plywood backboard on the wall. Use a ruler and a level

to make sure that the plywood backboard is level.

Note: Nortel recommends the use of a plywood backboard to simplify installing
multiple BCM50 units. However, due to the compact size and light weight of the
BCM50 units, a backboard is not required.

If you are not using a backboard, use the appropriate wall anchors or ensure the screws
are in a stud.

2 Mount the plywood backboard securely to the wall.
3 Place the wallmount bracket on the backboard and mark the location of the center

keyhole-shaped screw hole on the plywood backboard (see Figure 32 on page 85).

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Figure 32 Wallmount bracket

Chapter 7 Installing the main unit 85

1

2

1

2

1

2

Note: When using three screws,
Nortel recommends installing the
screws in the three holes labeled
“1” or the three holes labeled “2”.

4 Install one #8 x 2 cm (#8 x 0.75 in.) round-head wood screw in the backboard.

Do not tighten the screw head against the backboard. Leave approximately 0.5 cm (0.25 in.) of
the screw exposed from the backboard.

5 Prepare the wallmount bracket by removing the alignment tabs:

• If this is the only unit in the BCM50 system, remove the alignment tabs on the right side of

the wallmount bracket.

• If this is the last unit on a BCM50 system with multiple units, remove the alignment tabs

on the left side of the wallmount bracket.

If these options do not meet your requirements, other options that are more difficult to connect
are available. For example, you can route the Amphenol connector cable to the left of the unit,
or you can route the cable straight down the wall.

6 Hang the wallmount bracket on the mounting screw.
7 Use a level to make sure the wallmount bracket is level.
8 Install two #8 x 2 cm (#8 x 0.75 in.) round-head wood screws into the screw holes in the

wallmount bracket (see Figure 32).

9 Tighten the three wood screws against the wallmount bracket.
10 Open the cable management door.
11 Install two #8 x 2 cm (#8 x 0.75 in.) round-head wood screws into the screw holes in the cable

trough.

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86 Chapter 7 Installing the main unit

12 If the BCM50 system has only one unit, skip to“To install the BCM50 unit on the wallmount

bracket”.

If the BCM50 system has more than one unit, continue with the following steps.

13 Prepare the additional wallmount bracket using the descriptions in step 5.
14 Place the additional wallmount bracket on the backboard on the right side of the existing

wallmount bracket. Use the alignment tabs to ensure the two wallmount brackets are properly
aligned.

15 Use three #8 x 2 cm (#8 x 0.75 in.) round-head wood screws to secure the wallmount bracket

to the backboard (see Figure 32 on page 85).

16 Open the cable management door.
17 Install two #8 x 2 cm (#8 x 0.75 in.) round-head wood screws into the screw holes in the cable

trough.

18 Repeat steps 13 to 17 for each additional unit.

If this is the last wallmount bracket for the BCM50 system, continue to “To install the BCM50

unit on the wallmount bracket”.

To install the BCM50 unit on the wallmount bracket

1 Insert the power supply retention clip into the BCM50 unit.
2 Slide the wallmount lock fully to the right (unlock position). See Figure 33.

Figure 33 Wallmount lock in unlock position

3 Align the feet on the BCM50 unit with the four holes in the wallmount bracket (see Figure 34

on page 87).

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Figure 34 Attach the BCM50 unit to the wallmount bracket

Chapter 7 Installing the main unit 87

4 Press the unit against the wallmount bracket and slide the unit down until it clicks in place.
5 Slide the wallmount lock to the left (lock position). See Figure 35.

Figure 35 Wallmount lock in lock position

6 Use the supplied screw to secure the wallmount lock in position.
7 Repeat steps 1 to 6 for each additional BCM50 unit you are installing.
8 Install the BCM50 power supply using a method appropriate for your environment.

The power supply must be within 1.5 m (5 feet) of the BCM50 unit and within 1.5 m
(5 feet) of the ac power outlet (wall outlet or UPS).

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88 Chapter 7 Installing the main unit

9 Repeat step 8 for each BCM50 power supply.

Installing the wiring field card (optional)

You install the optional wiring field card (WFC) in the cable management tray of the main unit.

To install the WFC

1 Clear the WFC installation area of all cables.
2 Place the WFC in the installation area with the 50-pin header/cable connector at the top.
3 Slide the WFC down until it is at the bottom of the installation area and held in place by the

three clips (see Figure 36).

Figure 36 Slide in the WFC

4 Press the WFC firmly at the top left corner, center, and right tabs.

The WFC snaps into place (see Figure 37).

Figure 37 Snap the WFC into place

5 Optional — Install the three screws to secure the WFC in place.
6 Proceed to “To connect the cables to the wiring field card (optional)” on page 111.

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Chapter 7 Installing the main unit 89

Installing the BCM50 unit on a desktop or shelf

To mount a BCM50 unit on a desktop or shelf, attach the supplied rubber feet to the bottom of the
unit. If the BCM50 system includes additional units, you can set the additional units beside, or
stack them on top of, the first unit. If you are mounting the additional units beside the first unit,
attach the supplied rubber feet to the bottom of each unit. If you are stacking the additional units
on top of the first unit, mount each unit into the tabs on top of another unit.

Caution: Refer to “Checking the installation prerequisites” on page 75 for acceptable
environmental conditions before selecting a location for the BCM50 system.

Note: To keep the BCM50 unit operating at the optimal internal temperature, keep the
top, sides, and rear clear of obstructions and away from the exhaust of other equipment.

Do not place any objects, except other BCM50 units, on top of the main unit.

To install the BCM50 unit on a desktop or shelf

To install the BCM50 unit on a desktop or shelf:

1 Insert the power supply retention clip into the BCM50 unit.
2 Attach the four self-adhesive rubber feet to the bottom of the BCM50 unit by peeling off the

paper backing and placing the feet on the unit as indicated in Figure 38.

Figure 38 Location for feet on the bottom of the BCM50 unit

Attach feet here

3 Position the BCM50 unit on a table or shelf. Make sure you leave enough space around the

unit for ventilation and access to the cables.

4 If the BCM50 system has additional units, you can install the other units on top of, or beside,

the existing BCM50 unit.

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90 Chapter 7 Installing the main unit

• To install the additional units beside the existing unit, repeat steps 1 to 3 for each unit.

• To install the additional units on top of the existing unit, refer to “To install a BCM50 unit

on top of another unit” on page 83.

5 Install the power supply next to the BCM50 unit.

The power supply must be within 1.5 m (5 feet) of the BCM50 unit and within 1.5 m
(5 feet) of the ac power outlet (wall outlet or UPS).

6 Repeat step 5 for each power supply.

Next step

If you are installing an expansion unit, proceed to “Installing an expansion unit” on page 91.
Otherwise, proceed to “Connecting the cables to the BCM50 system” on page 97.

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Chapter 8

Installing an expansion unit

Adding a expansion unit increases the capacity of your BCM50 system by providing a method of
adding a media bay module (MBM). Each MBM you add increases the number of public switched
telephone network (PSTN) trunks or extensions that you can connect to the BCM50 system.

Figure 39 shows the steps required to install the expansion unit.

Figure 39 Overview of installing a expansion unit

Chapter 8 Installing an expansion unit 91

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92 Chapter 8 Installing an expansion unit

Refer to the following sections for information on installing an expansion unit:

• “Unpacking the expansion unit”

• “Verifying the media bay module switch settings”

• “Installing a media bay module in an expansion unit” on page 95

• “Installing the expansion unit” on page 95

Unpacking the expansion unit

Open the expansion unit box and remove all the components. Check that you have all the
following components:

• one expansion unit

• one expansion unit power supply

• one power supply cable

• one expansion cable (shielded Ethernet cable)

• one power supply retention clip

• four rubber feet

•the BCM50 First Time Installation and Configuration Guide (N0027149)

Visually inspect the components for any damage that may have occurred during shipping. If you
find any damage, contact your Nortel representative.

Warning: Make sure the power supply to the expansion unit is disconnected
before inserting or removing an MBM.

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Chapter 8 Installing an expansion unit 93

Verifying the media bay module switch settings

Each MBM has dip switches on the back or underside of the module (see Figure 40).

Figure 40 Switches on the media bay module (not applicable for GASM or GATM)

Underside of the
media bay module

Back of the media bay module

dip switches

6543 21

On

Off

Rear view of the media bay module

Off

On

123456

Module is
right-side up

Note: The GASM and GATM MBMs have a different dip switch configuration
than shown in Figure 40. Refer to “To set GASM dip switches” on page 94 and

“To set GATM dip switches” on page 94 for more information.

Verify that the dip switches for your MBMs are in the default factory positions as follows:
If you are installing a DTM, BRIM, 4x16, DSM16, DSM32, or ASM8, ensure that all the switches

are on. This is the default setting for the MBM switches. After you have set the switches, proceed
to “Installing a media bay module in an expansion unit” on page 95.

Caution: The MBM dip switches must remain in their default factory position.
Any required modifications to the MBM settings are made through the software.

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94 Chapter 8 Installing an expansion unit

To set GASM dip switches

1 For the dip switches on the left side, at the rear of the module, set all the switches to on.
2 For the dip switches on the right side, at the rear of the module, set the switches according to

Tabl e 17 and Ta bl e 18.

Table 17 GASM dip switch settings (switch 1–3)

Switch Description Setting

Switch 1 Firmware download capability OFF — Standard mode (firmware downloading not

Switch 2 Set when the firmware is

downloaded from the BCM50
(for enhanced mode only)

Switch 3 Enable/disable echo

cancellation

supported)
ON — Enhanced mode (firmware downloading supported)

OFF — if you want the GASM to download the firmware
when the firmware version in the BCM50 is different than the
version in the GASM (default)

ON — if you want the GASM to download the firmware
whenever there is a cold start of the BCM50

OFF — Enables echo cancellation (default)
ON — Disables echo cancellation

Table 18 GASM dip switch settings (switch 4–8)

Switches 4 to 8 select the region for the GASM as follows:

Switch 4Switch 5Switch 6Switch 7Switch 8
North America OFF OFF OFF OFF OFF
United Kingdom OFF OFF OFF OFF ON
Australia OFF OFF OFF ON OFF
Poland OFF OFF OFF ON ON

3 After you have set the switches, proceed to “Installing a media bay module in an expansion

unit” on page 95.

To set GATM dip switches

1 For the dip switches on the left side, at the rear of the module, set all the switches to on.
2 For the dip switches on the right side, at the rear of the module (country profile switches), set

all of the switches to off. The GATM downloads the country profiles automatically.

3 After you have set the switches, proceed to “Installing a media bay module in an expansion

unit” on page 95.

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Chapter 8 Installing an expansion unit 95

Installing a media bay module in an expansion unit

To install a media bay module (MBM)

1 Attach one end of a grounding strap to your wrist and the other end to a grounded metal

surface.

2 With the face of the MBM toward you, insert the MBM into the expansion unit.
3 Push the MBM completely into the expansion unit. You hear a click when the MBM is firmly

seated in the expansion unit.
The MBM must be configured for it to function. Refer to “To configure the MBM(s)” on page

150 for information on configuring an MBM.

4 Continue with the next procedure, “Installing the expansion unit”.

Installing the expansion unit

Make sure that the expansion unit is installed close enough to the main unit so that the supplied
expansion cable can be connected between the expansion unit and main unit.

The expansion unit can be mounted in a rack, on a wall, or on a desktop. Typically, the expansion
unit is mounted in the same way as the main unit.

Use one of the following procedures to mount the expansion unit:

• “Installing the BCM50 unit in an equipment rack” on page 80

• “Installing the BCM50 unit on the wall” on page 84

• “Installing the BCM50 unit on a desktop or shelf” on page 89

Next step

If you are installing a second expansion unit on the system, repeat the procedures in this section for
the second expansion unit.

After you have installed the expansion unit, go to “Connecting the cables to the BCM50 system”

on page 97.

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96 Chapter 8 Installing an expansion unit

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Chapter 9 Connecting the cables to the BCM50 system 97

Chapter 9

Connecting the cables to the BCM50 system

This section describes how to connect the telephone lines, telephony devices, and power to the
BCM50 system.

Figure 41 shows the steps required to connect the cables to the BCM50 system.

Figure 41 Overview of connecting cables to the BCM50 system

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98 Chapter 9 Connecting the cables to the BCM50 system

Refer to the following sections for information on connecting the cables to the BCM50 system:

• “Connecting the expansion unit”

• “Connecting the power supply” on page 100

• “Connecting the lines and extensions” on page 102

• “Connecting the auxiliary equipment” on page 107

Connecting the expansion unit

The expansion unit connects to the main unit through the expansion ports on the front of the units.

Figure 42 shows the location of the expansion ports on the BCM50 main unit and the expansion

unit.

Figure 42 Expansion ports

Main unit

Expansion unit

Note: The expansion unit connected to expansion/LAN port 2 on the main unit is

designated as Expansion 1 in Element Manager, while the expansion unit
connected to expansion/LAN port 3 is designated as Expansion 2.

Use this information to configure the correct media bay module (MBM) in
Element Manager (see “Configuring the media bay module” on page 150).

Expansion/LAN

(port 2)

Expansion/LAN

(port 3)

Expansion

port

If your BCM50 system does not have an expansion unit, proceed to “Connecting the power

supply” on page 100.

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Chapter 9 Connecting the cables to the BCM50 system 99

To connect an expansion unit

Note: Keycodes are required for the expansion ports to function. If you purchase a

keycode for one expansion port only, expansion/LAN port 2 (on the left) is active.

1 Locate the expansion cable that was supplied with the expansion unit.

If you do not have the expansion cable, you can use a shielded category 5e-compliant Ethernet
cable (maximum length of 10 m).

2 Plug one end of the expansion cable into the expansion port on the expansion unit.
3 Do one of the following (see Figure 43):

• To connect the first expansion unit: Plug the other end of the expansion cable into

expansion/LAN port 2 on the main unit. This expansion unit is now designated as
Expansion 1 in Element Manager.

• To connect the second expansion unit: Plug the other end of the expansion cable into

expansion/LAN port 3 on the main unit. This expansion unit is now designated as
Expansion 2 in Element Manager.

Note: When you plug an expansion unit into the correct port on the main unit, the
LEDs on the expansion unit port light up, while the LEDs on the main unit port go
out.

Figure 43 Connecting the expansion unit to the BCM50 Main Unit

Expansion unit 1 Main unit Expansion unit 2

Buses 5/6 Buses 7/8

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100 Chapter 9 Connecting the cables to the BCM50 system

The expansion port you select determines the line and extension numbers of the devices
connected to the expansion unit. Refer to Tab le 19 for the default line and extension
numbers.If you have a second expansion unit, repeat steps 1 to 3 for the second unit.

Table 19 Default line and extension numbers

Default
extension numbers*

Digital: 221 – 232

Main unit

Expansion port 1

Expansion port 2

* The number and type of lines and extensions that are available on the
expansion ports is determined by the MBM you install in the expansion
unit.

Analog: 233 – 236
237 – 268 065 – 094

269 –300 095 – 124

Connecting the power supply

An uninterruptible power supply (UPS) is an optional device that you connect to your BCM50
system. The UPS provides battery backup for the BCM50 system to maintain continuous operation
during power interruption or failure conditions. For more information about the UPS, refer to

“Uninterruptable power supply” on page 50.

When connecting a UPS, you must use a USB hub between the UPS and the BCM50 system.

Note: For the UPS to function correctly, it must be connected before the BCM50
system is powered up. If you connect a UPS to a running system, the UPS will not
function.

Default
line numbers*

061 – 064

Figure 44 on page 101 shows how to connect the UPS.

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Note: International (non-North American) users might require the power supply
adapter cord to connect the power supply to the special power bar. Refer to the
Appendix, “System region attributes” on page 229 for more information.