Northern Telecom DMS-100 Series Instruction Manual

0 297-2121-226
0 VINTAGE 05.01
0 STANDARD
0
0DIGITAL SWITCHING SYSTEMS
0DMS*-100 FAMILY DATAPATH*
0DATA UNIT - INSTALLATION AND MAINTENANCE
0
0 * DMS and DATAPATH are trademarks of Northern Telecom.

0 297-2121-226
0 VINTAGE 05.01
0 (c) Northern Telecom 1989, 1990, 1993

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0CONTENTS
0 CHAPTER 1: ABOUT THIS DOCUMENT
0 PURPOSE . . . . . . . . . . . . . . . . . . . . . . . . 1-1
0 APPLICABILITY OF THIS DOCUMENT . . . . . . . . . . . . . 1-1
0 How to identify the software in your office . . . . . 1-2
0 REVISION HISTORY . . . . . . . . . . . . . . . . . . . . 1-2
0 WHERE TO FIND INFORMATION . . . . . . . . . . . . . . . 1-2
0 In the DATAPATH documentation package . . . . . . . . 1-3
0 In other documents . . . . . . . . . . . . . . . . . 1-3
0 CHAPTER 2: UNDERSTANDING DATAPATH DATA UNITS
0 DATA UNIT CAPABILITIES . . . . . . . . . . . . . . . . . 2-1
0 DATA UNIT CONFIGURATIONS . . . . . . . . . . . . . . . . 2-1
0 CALL PATH RESTORATION . . . . . . . . . . . . . . . . . 2-3
0 CHAPTER 3: DESCRIPTIONS AND SPECIFICATIONS
0 DESKTOP DATA UNIT DESCRIPTION . . . . . . . . . . . . . 3-2
0 Controls and Indicators (NT4X25AA /AE /AF /AG /AH /AK
0 /AN /AP /AX /AZ) . . . . . . . . . . . . . . . . . 3-11
0 Internal Options (NT4X25AA /AE /AF /AG /AH /AK /AN /AP
0 /AX /AZ) . . . . . . . . . . . . . . . . . . . . . 3-23
0 DESKTOP DATA UNIT SPECIFICATIONS . . . . . . . . . . . . 3-24
0 Mechanical Specifications . . . . . . . . . . . . . . 3-24
0 Electrical Specifications . . . . . . . . . . . . . . 3-24
0 Environmental Specifications . . . . . . . . . . . . 3-25
0 Regulatory Compliance . . . . . . . . . . . . . . . . 3-25
0 RACKMOUNT DATA UNIT DESCRIPTION . . . . . . . . . . . . 3-26
0 Controls and Indicators (NT4X25AD /AV /CH /DF) . . . 3-29
0 Options (NT4X25AD /AV /CH /DF) . . . . . . . . . . . 3-31
0 RACKMOUNT DATA UNIT SPECIFICATIONS . . . . . . . . . . . 3-40
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0 Mechanical Specifications . . . . . . . . . . . . . . 3-40
0 Electrical Specifications . . . . . . . . . . . . . . 3-40
0 Environmental Specifications . . . . . . . . . . . . 3-40
0 Regulatory Compliance . . . . . . . . . . . . . . . . 3-40
0 SHELF AND POWER SUPPLY DESCRIPTION . . . . . . . . . . . 3-41
0 Shelf - NT4X25BH or NT4X25DH . . . . . . . . . . . . 3-41
0 Power Supply . . . . . . . . . . . . . . . . . . . . 3-43
0 SHELF SPECIFICATIONS (NT4X25BH/DH) . . . . . . . . . . . 3-44
0 Mechanical Specifications . . . . . . . . . . . . . . 3-44
0 POWER SUPPLY SPECIFICATIONS - NT4X2554 . . . . . . . . . 3-45
0 Mechanical Specifications . . . . . . . . . . . . . . 3-45
0 Electrical Specifications . . . . . . . . . . . . . . 3-45
0 Environmental Specifications . . . . . . . . . . . . 3-45
0 Regulatory Compliance . . . . . . . . . . . . . . . . 3-45
0 POWER SUPPLY SPECIFICATIONS - NT4X25DK . . . . . . . . . 3-46
0 Mechanical Specifications . . . . . . . . . . . . . . 3-46
0 Electrical Specifications . . . . . . . . . . . . . . 3-46
0 Environmental Specifications . . . . . . . . . . . . 3-46
0 Regulatory Compliance . . . . . . . . . . . . . . . . 3-46
0 POWER SUPPLY SPECIFICATIONS - NT4X25DL . . . . . . . . . 3-47
0 Mechanical Specifications . . . . . . . . . . . . . . 3-47
0 Electrical Specifications . . . . . . . . . . . . . . 3-47
0 Environmental Specifications . . . . . . . . . . . . 3-47
0 Regulatory Compliance . . . . . . . . . . . . . . . . 3-47
0 CALL PATH RESTORATION . . . . . . . . . . . . . . . . . 3-48
0 Setting Up The CPR Feature . . . . . . . . . . . . . 3-48
0 Datafilling the CPR feature . . . . . . . . . . . . . 3-48
0 Removing the CPR Feature . . . . . . . . . . . . . . 3-49
0 CHAPTER 4: DATA UNIT INSTALLATION
0 DESKTOP DATA UNIT INSTALLATION . . . . . . . . . . . . . 4-1
0 Setting the Configuration Switches . . . . . . . . . 4-1
0 Making the Connections to the DU . . . . . . . . . . 4-5
0 Setting the Options (NT4X25AA /AE /AN /AP /AX /AZ) . 4-6
0 Setting the Options (NT4X25AF /AG /AH /AK) . . . . . 4-7
0 RACKMOUNT DATA UNIT INSTALLATION (NT4X25AD /CH /AV /DF) 4-9
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0 Installing the NT4X25DH shelf . . . . . . . . . . . . 4-9
0 Installing the Rackmount Shelf Alarms . . . . . . . . 4-11
0 Connecting Data Lines to the Shelf . . . . . . . . . 4-12
0 Setting the Configuration Switches . . . . . . . . . 4-12
0 Setting the Options . . . . . . . . . . . . . . . . . 4-13
0 Installing the Rackmount DUs . . . . . . . . . . . . 4-13
0 CHAPTER 5: VERIFYING OPERATION
0 STATUS INDICATOR LEDS . . . . . . . . . . . . . . . . . 5-1
0 DESKTOP DU (NT4X25AA /AE /AF /AG /AH /AK /AN /AP /AX /AZ) 5-3
0 Self-test . . . . . . . . . . . . . . . . . . . . . . 5-3
0 Switched Configuration Verification . . . . . . . . . 5-4
0 Non-Switched Configuration Verification . . . . . . . 5-9
0 RACKMOUNT DU (NT4X25AD /CH /AV /DF) . . . . . . . . . . 5-9
0 Self-test . . . . . . . . . . . . . . . . . . . . . . 5-9
0 Switched Configuration Verification . . . . . . . . . 5-10
0 Non-Switched Configuration Verification (NT4X25AD /CH
0 /AV /DF) . . . . . . . . . . . . . . . . . . . . . 5-12
0 CHAPTER 6: TROUBLESHOOTING
0 STATUS INDICATORS . . . . . . . . . . . . . . . . . . . 6-1
0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . 6-3
0 CHAPTER 7: GLOSSARY
0ILLUSTRATIONS
0 FIGURES
0 2.1 Typical Switched Configuration . . . . . . . . . . 2-2
0 2.2 Typical Non-Switched Configuration . . . . . . . . 2-2
0 3.1 NT4X25AA /AN /AX /AZ - RS-232C Desktop Data Unit . 3-3
0 3.2 NT4X25AE /AP - V.35 Desktop Data Unit . . . . . . . 3-4
0 3.3 NT4X25AF/AH RS-232C Desktop Data Unit . . . . . . . 3-5
0 3.4 NT4X25AG/AK V.35 Desktop Data Unit . . . . . . . . 3-6
0 3.5 NT4X25AA /AE /AN /AP /AX /AZ - Rear View . . . . . 3-8
0 3.6 NT4X25AF /AG /AH /AK - Rear View . . . . . . . . . 3-9
0 3.7 DTE Connector Pinout . . . . . . . . . . . . . . . 3-10
0 3.8 MI Pulse/MI Level and MI Invert/Normal Settings . . 3-17
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0 3.9 NT4X25AF /AH Switch Settings for CTS Delay . . . . 3-21
0 3.10 NT4X25AD /AV /CH /DF Rackmount DU - Front View . . 3-26
0 3.11 MI Pulse/MI Level and MI Invert/Normal Settings . . 3-36
0 3.12 NT4X25CH Switch Settings for Modem Pool CTS Delay 3-38
0 3.13 Rackmount DU Option Switches . . . . . . . . . . . 3-39
0 3.14 NT4X25BH/DH Shelf - Mounting Hole Dimensions . . . 3-41
0 3.15 C0 and C1 Connector Pinout . . . . . . . . . . . . 3-42
0 3.16 DU Shelf Backplane . . . . . . . . . . . . . . . . 3-43
0 4.1 Desktop DU - SW1 and SW2 Configuration Switch
0 Locations . . . . . . . . . . . . . . . . . . . 4-3
0 4.2 Desktop DU - SW1 and SW2 Configuration Switch Set-
0 tings . . . . . . . . . . . . . . . . . . . . . 4-4
0 4.3 Desktop DU Connections - Rear View . . . . . . . . 4-5
0 4.4 Desktop DU - Option Selector Switches . . . . . . . 4-6
0 4.5 Rackmount DU - Connections to the Backplane . . . . 4-10
0 4.6 Rackmount DU - Configuration Switch Settings . . . 4-14
0 4.7 Rackmount DU Option Switches . . . . . . . . . . . 4-15
0 4.8 Rackmount DU - Baud Rate Switch Settings . . . . . 4-16
0 5.1 Status Indicator Chart . . . . . . . . . . . . . . 5-2
0 6.1 Failures Indicated by Status LEDs . . . . . . . . . 6-2
0 TABLES
0 3.1 Desktop Data Unit Controls and Indicators . . . . . . 3-11
0 3.2 Desktop Data Unit Options . . . . . . . . . . . . . . 3-14
0 3.3 Rackmount Data Unit Options . . . . . . . . . . . . . 3-31
0 4.1 Additional Speed Settings . . . . . . . . . . . . . . 4-8
0 6.1 Data Unit Troubleshooting . . . . . . . . . . . . . . 6-3
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0 CHAPTER 1
0 ABOUT THIS DOCUMENT
0

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0 PURPOSE
0 This document describes rackmount and desktop data units for
0 Datapath. It provides installation instructions, verification
0 methods and troubleshooting information for installation and
0 maintenance personnel. Where applicable, shelves and external
0 power supplies associated with the data units are also described.
0 This document applies to the following data units:
0 NT4X25AA (Manufacture Discontinued)
0 NT4X25AD (Manufacture Discontinued)
0 NT4X25AE (Manufacture Discontinued)
0 NT4X25AF
0 NT4X25AG
0 NT4X25AH
0 NT4X25AK
0 NT4X25AN
0 NT4X25AP
0 NT4X25AV
0 NT4X25AX (Manufacture Discontinued)
0 NT4X25AZ
0 NT4X25CH
0 NT4X25DF
0 This document applies to the following data unit shelves:
0
0 NT4X25BH (Manufacture Discontinued)
0 NT4X25DH
0
0 This document applies to the following power supply units, used
0 with the NT4X25DH data unit shelf:
0
0 NT4X25DK
0 NT4X25DL
0
0 APPLICABILITY OF THIS DOCUMENT
0 Northern Telecom (NT) software releases are referred to as batch
0 change supplements (BCS) and are identified by a number, for
0 example, BCS26.
0 This document applies to DMS-100 Family offices that have BCS35.
0 Unless the document is revised, it also applies to offices that
0 have software releases greater than BCS35.
0 To determine if this document has been revised, check the release
0 information in the Master index of publications, 297-1001-001.
0 1-1

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0 How to identify the software in your office
0 The Office feature record D190 lists your current BCS and the NT
0 feature packages which it comprises.
0 To view similar information on screen, enter the following com-
0 mand string at a MAP (maintenance and administration position).
0 >PATCHER;INFORM LIST;LEAVE
0 Datapath RS-232C data unit and V.35 data unit features are con-
0 tained in software package NTX250AA.
0 REVISION HISTORY
0
0 BCS DATE REVISIONS
0
0 BCS35 March 1993 Added information on NT4X25DH Data
0 Unit Shelf, NT4X25DK AC to DC Power
0 Supply, and NT4X25DL DC to DC Power
0 Supply.
0
0 BCS30 February 1990 Added information on the Call Path
0 Restoration (CPR) feature.
0
0 WHERE TO FIND INFORMATION
0 Documents that you require to understand the content of this doc-
0 ument, or to perform the procedures it describes, are referred to
0 in the appropriate places in the text.
0 These documents, and others that contain related information, are
0 listed in the following sections:
0 * In the DATAPATH documentation package
0 * In other documents
0Note: More than one version of these documents may exist. To
0 determine which version of a document applies to the BCS in your
0 office, check the release information in the Master index of pub-
0 lications, 297-1001-001.
0 1-2

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0 In the DATAPATH documentation package
0 The DATAPATH package contains these documents.
0
0 DOCUMENT TITLE
0
0 297-2121-100 Datapath - Guide to Documentation
0
0 297-2121-182 Line Engineering - Rules and Procedures
0
0 297-2121-224 Modem Pools Installation and Maintenance
0
0 297-2121-100 Datapath - Guide to Documentation
0
0 297-2121-182 Line Engineering - Rules and Procedures
0
0 297-2121-100 Modem Pools Installation and Maintenance
0
0 In other documents
0 This section lists documents that contain information on related
0 topics.
0
0 DOCUMENT TITLE
0
0 297-1001-100 System Description
0
0 297-1001-001 Guide to Northern Telecom Practices
0
0 297-1001-825 Glossary of Terms and Abbreviations
0
0 297-1001-300 Basic Administration Procedures
0
0 297-1001-451 Customer Data Schema
0
0 297-1001-455 The Office Parameters Reference Manual
0
0 297-1001-533 Bit Error Rate Performance Testing
0
0 297-1001-814 Operational Measurements (OM)
0
0 297-1001-820 Non-Menu Commands Reference Manual
0
0 Table Continued
0 1-3

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0
0 DOCUMENT TITLE
0
0 297-1001-821 Menu Commands Reference Manual
0
0 1-4

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0 CHAPTER 2
0 UNDERSTANDING DATAPATH DATA UNITS
0

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0 This chapter outlines the capabilities of a data unit (DU) and
0 briefly describes DU configurations.
0 DATA UNIT CAPABILITIES
0 A DU provides an interface between data terminal equipment (DTE)
0 and a two-wire non-loaded loop. Data is transmitted on the two-
0 wire loop using time compression multiplexing (TCM). The TCM
0 technology provides a data channel that is capable of handling
0 data at a rate of 64 kbps with an 8 kbps signaling channel.
0 There are two types of data units:
0 * RS-232C data units
0 * V.35 data units
0 RS-232C data units have an RS-232C DTE interface and are capable
0 of transmitting data synchronously or asynchronously. Trans-
0 mission speeds are user-selectable up to 19.2 kbps in full-duplex
0 mode (half-duplex mode is supported). The RS-232C DUs are avail-
0 able in desktop (standalone) or rackmount models.
0 V.35 data units have a V.35 interface and are capable of trans-
0 mitting data synchronously at 48 kbps, 56 kbps or 64 kbps in
0 full-duplex mode (half-duplex mode is supported). The V.35 DUs
0 are available in desktop or rackmount models.
0 Data units have controls and indicators for selecting options,
0 features and diagnostic self-tests.
0 For detailed descriptions and specifications see Chapter 3 on
0 page 3-1. For details on diagnostics see Chapter 5 on page 5-1.
0 DATA UNIT CONFIGURATIONS
0 Data units can be connected in either of two configurations:
0 * switched
0 * non-switched
0 In a switched configuration, the DU is connected to a data line
0 card (DLC) in the DMS-100 Family switch. In a typical applica-
0 tion, data on the two-wire loop is switched through the central
0 office to another DU and DTE (see Figure 2.1 on page 2-2).
0 2-1

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0
0
0 DMS-100
0
0 RS-232C or V.35 2-wire loop
0 DTE DU DLC
0
0
0
0
0 RS-232C or V.35 2-wire loop
0 DU DLC X
0 Main
0 Frame
0
0
0
0
0
0
0 RS-232C or V.35 2-wire loop
0 DTE DU DLC
0
0
0
0
0
0
0 Figure 2.1 Typical Switched Configuration
0 In a non-switched (back-to-back) configuration, two DUs are
0 directly connected on a single two-wire loop (see Figure 2.2).
0
0 RS-232C RS-232C
0 or V.35 2-wire loop or V.35
0 DTE DU DU DTE
0
0
0
0 Figure 2.2 Typical Non-Switched Configuration
0 Refer to 297-2121-182, Line Engineering Rules for information on
0 maximum cable lengths.
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0 CALL PATH RESTORATION
0 In a switched configuration, if you assign the Call Path Restora-
0 tion (CPR) feature to a data line of an associated data unit
0 (DU), the data unit re-establishes any calls that are inadvert-
0 ently disconnected.
0 This feature and the Virtual Private Line (VPL) option (see Para-
0 graph: Virtual Private Line on page 3-22) can be useful for such
0 applications as:
0 * mainframe to printer connection
0 * host to remote terminal
0 * LAN bridging
0 In such applications, assign the CPR feature to the data unit at
0 the remote site. For a description of the CPR feature, see Call
0 Path Restoration on page 3-48.
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0
0 CHAPTER 3
0 DESCRIPTIONS AND SPECIFICATIONS
0

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