Nortel DMS-100 Series Reference Manual
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Nortel DMS-100 Series Reference Manual

Alarm system description
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297–1001–122
DMS-100 Family
Alarm System Description
Reference Manual
BASE12 Standard 06.01
August 1999

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  • Page 1 297–1001–122 DMS-100 Family Alarm System Description Reference Manual BASE12 Standard 06.01 August 1999...
  • Page 3 Information is subject to change without notice. Nortel Networks reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.
  • Page 5 Publication history August 1999 BASE12 Standard 06.01 document converted to interleaf format corrected titles of NTPs referenced in this document consolidated information on each alarm system version into separate chapters added a chapter for the Low Power DMS Alarm System added an index May 1992 BCS33 Standard 05.01...

  • Page 7: Table Of Contents

    Contents About this document How to check the version and issue of this document ix References in this document ix What precautionary messages mean x How commands, parameters, and responses are represented xi Input prompt (>) xi Commands and fixed parameters xi Variables xi Responses xi Introduction...
  • Page 8 vi Contents OAS Version 2 Enhanced Alarm System EAS features 4-1 EAS hardware and alarm indication devices 4-2 Office alarm unit 4-2 MTM alarm system circuits 4-4 Alarm cross-connect unit panel 4-4 Audible alarms 4-4 Visual alarm indications and manual controls 4-5 ACD panel with common audible alarm 4-6 Alarm display panel 4-7 Exit alarm panel 4-8...
  • Page 9 Contents vii Remote site alarms 6-17 RLM alarm extension circuit 6-17 Centralized alarm reporting 6-18 List of acronyms ABS 7-1 ACD 7-1 ANI 7-1 ASCS 7-1 CAMA 7-1 CC 7-1 CCIS 7-1 DF 7-1 DMS 7-1 DOC 7-1 DSA 7-1 EAS 7-2 Ext 7-2 FSP 7-2...

  • Page 11: About This Document

    About this document This document decribes the DMS alarm subsystem. The DMS alarm subsystem is part of the BASE platform in all markets. The DMS alarm subsystem is part of the following DMS-based product lines: DMS-100/200/250/300/500 MSL-100 How to check the version and issue of this document The version and issue of the document are indicated by numbers, for example, 01.01.

  • Page 12: What Precautionary Messages Mean

    x About this document DMS 100/200 Product Computing Module Load (PCL) Release Document, PLN-8YYY-004 Network Management System Reference Manual, 297-1001-453 Maintenance System Man-Machine Interface Description, 297-1001-520 External Devices Maintenance Guide, 297-1001-593 Trunks Maintenance Guide, 297-1001-595 Translations Guide Hardware Description Reference Manual, 297-8991-805 What precautionary messages mean The types of precautionary messages used in NT documents include attention boxes and danger, warning, and caution messages.

  • Page 13: How Commands, Parameters, And Responses Are Represented

    About this document xi WARNING Damage to the backplane connector pins Align the card before seating it, to avoid bending the backplane connector pins. Use light thumb pressure to align the card with the connectors. Next, use the levers on the card to seat the card into the connectors.
  • Page 14 xii About this document FP 3 Busy CTRL 0: Command request has been submitted. FP 3 Busy CTRL 0: Command passed. The following excerpt from a procedure shows the command syntax used in this document: Manually busy the CTRL on the inactive plane by typing >BSY CTRL ctrl_no and pressing the Enter key.

  • Page 15: Introduction

    Introduction The DMS alarm (sub)system performs the following functions: generates audible and visual indications of alarm conditions detected in the DMS switch and related equipment. These alarm indications alert maintenance personnel and help in the identification and location of alarm conditions. provides the capability to do the following: —...

  • Page 16: Office Alarm System

    (DSA) condition in an office. The IATC is also called the inactive system timer (IAST) Note 1: Nortel provides a change application kit (NT0X66AC) for backwards compatibility to older mechanical unique audibles panels.

  • Page 17: Alarm Detection

    Introduction 1-3 Figure 1-1xxx Alarm system hardware Alarm crosspoint unit Standby MTM or ISM Office alarm unit TME 00 TME 01 Maintenance trunk module The MTM is a peripheral module, provisioned in a trunk module equipment (TME) frame, that you can equip as an OAU or a standby MTM. Service trunk module The service trunk module is a PM that consists of two compact MTMs.
  • Page 18 1-4 Introduction The alarm system uses scan (SC) points and SD points to monitor and report the alarm status of each equipment row, to a maximum of 40 rows. Scan points detect voltage, ground, open-loop, or closed-loop conditions. Signal distribution points transfer alarm indications to alarm panels and other equipment.

  • Page 19: Alarm Indication

    Introduction 1-5 Figure 1-2xxx Ext level MAP display Trks APPL Ext Alarms Crit Major Minor NoAlm 0 Quit EXT: 7 List_ 8 TstDSAlm 9 SetSD_ 10 SetSC_ 11 Disp_ 13 _Crit 14 _FSP 15 _Maj 16 _Min 17 _NoAlm Alarm indication The alarm system software and relay-controlled equipment in the OAU activate audible or visual alarms, or both, when the system detects alarms in the DMS-100 Family office.

  • Page 20: Alarm Classes

    1-6 Introduction with the alarm system software through table SFWALARM. The EXT subsystem reports these alarms. For more information on the maintenance system MAP terminal, refer to Maintenance System Man-Machine Interface Description, 297-1001-520. Alarm classes The system assigns alarm conditions to one of three classes (severity levels). The severity is based on the urgency of the required response to the alarm condition or return of the affected equipment to normal operation.
  • Page 21 Introduction 1-7 Software alarms Software subsystems not represented on maintenance system status displays at the MAP terminal can also generate alarms. Table SFWALARM integrates these alarms into alarm system software. The EXT subsystem reports these alarms to operating company personnel. The system datafills table SFWALARM.

  • Page 23: Office Alarm System Version 1

    Office Alarm System Version 1 This chapter contains information on Office Alarm System (OAS) Version 1. Chapter 6 describes the OAS alarms, and alarm and control circuits. Version 1 OAS hardware and alarm indication devices The following sections provide information on the main hardware components of the Version 1 OAS and the alarm indication devices mounted on these components.
  • Page 24 2-2 Office Alarm System Version 1 the following miscellaneous office alarm circuit cards: — The office alarm circuit #1 card (NT2X41) contains control relays for the alarm grouping circuit and the power plant exit pilot lamps. — The office alarm circuit #2 card (NT2X42) contains control relays for the following: –...
  • Page 25 Office Alarm System Version 1 2-3 Figure 2-1 Office alarm unit shelf layout Cards NT2X58AA Filler faceplate NT0X50AA Filler faceplate (see Note 1) NT2X09AA Power converter card NT0X50AC Scan detector NT0X50AC Scan detector NT0X10AA Scan detector NT0X10AA Scan detector NT0X10AA Scan detector NT2X43AB OAC 3 (see Note 2) NT2X42AB OAC 2 (see Note 2) NT2X41AA OAC 1 (see Note 2)

  • Page 26: Mtm Alarm System Circuits

    2-4 Office Alarm System Version 1 MTM alarm system circuits In the Version 1 OAS, the standby MTM must contain an office alarm circuit #3 card (NT2X43). This card contains the OAU and dead system (DS) alarm circuits. The standby MTM must also contain at least one signal distribution card (NT2X57) and one scan detector card (NT0X10).
  • Page 27 Office Alarm System Version 1 2-5 Figure 2-2 Version 1 alarm system interconnections Optional audible alarm panels Optional alarm Optional exit pilot (maximum four NT0X66) cutoff control lamps (maximum circuit ten NT0X64) Optional audible alarm cutoff key (NT5X86) panel (NT5X86) DMS switch Cross-aisle ACD (NT0X63) Optional audible...

  • Page 28: External Alarms Panels

    2-6 Office Alarm System Version 1 The alarm crosspoint field shelf (NT0X62AA) is in the top shelf position of the frame that contains the OAU shelf. The alarm crosspoint field contains vertical mounting plates. Forty-five connectors, a 200-pin terminal strip, and four data link control cards (NT0X89) are mounted.

  • Page 29: Office Alarm System Version 2

    Office Alarm System Version 2 This chapter contains information on office alarm system (OAS) Version 2. Chapter 6 describes the OAS alarms and alarm and control circuits. In the Version 2 OAS, you can locate alarm circuit, scan, and signal detector cards in any MTM shelf in the office.
  • Page 30 3-2 Office Alarm System Version 2 — 20-Hz ringing supply with the associated failure monitor and power transfer circuits — 60 IPM (interruptions per minute) interrupter circuit for the major alarm tone bar — signal distribution points for the MTM fail indicators —...

  • Page 31: Mtm Alarm System Circuits

    Office Alarm System Version 2 3-3 MTM alarm system circuits In the Version 2 OAS, the OAU must contain an OAU dead system card (NT3X82). The SC and SD points that generate the OAU and dead system (DS) alarms are in the NT3X82. This card must be the same type as the equivalent card in the standby MTM or ISM.
  • Page 32 3-4 Office Alarm System Version 2 and class of alarms that the alarm system detects. Switches provide manual control of alarm system facilities. Table 3-1 contains descriptions of the functions of the lamps and switches on the ACD. Figure 3-1 Alarm control and display panel Power Night Alarm...
  • Page 33 Office Alarm System Version 2 3-5 Table 3-1 Alarm control and display functions (continued) Designation Device Function Office Alarm Unit Lamp (amber) Signals an alarm system hardware failure at the OAU or the MTM Critical Power Plant Lamp (red) Signals a critical DMS Power plant failure Major Power Plant Lamp (amber) Signals a major DMS power plant failure...

  • Page 34: External Alarms Panels

    3-6 Office Alarm System Version 2 Table 3-1 Alarm control and display functions (continued) Designation Device Function Data Loop B Switch Routes B aisle multiple to IOC port B, or MDF (three-position) data loop jacks, or opens the loop. For more information, refer to Chapter 6.

  • Page 35: Version 2 Oas Equipment Combinations

    Office Alarm System Version 2 3-7 distribution cards. The NT3X82 cards contain all the required control relays. Version 2 OAS equipment combinations Table 3-2 shows equipment combination examples for a remote line module (RLM), a small DMS-100 Family office, and a large DMS-100 Family office.

  • Page 37: Oas Version 2 Enhanced Alarm System

    OAS Version 2 Enhanced Alarm System This chapter contains information on the Office Alarm System (OAS) Version 2 Enhanced Alarm System (EAS). Chapter 6 describes the OAS alarms and alarm and control circuits. EAS features In the EAS, the power for office alarms is separate from the power for the power distribution center (PDC).

  • Page 38: Eas Hardware And Alarm Indication Devices

    4-2 Version 2 Enhanced Alarm System EAS hardware and alarm indication devices The following sections describe the main hardware components of the EAS and the alarm indication devices mounted on these components. Office alarm unit The OAU of an EAS is a regular maintenance trunk module (MTM) shelf. The OAU can be part of a complete alarm system for a small office (See Figure 4-1).
  • Page 39 Version 2 Enhanced Alarm System 4-3 Figure 4-2 Alarm system for a large office Optional audible alarm panels Optional alarm Optional exit pilot (maximum four NT0X66) cutoff control lamps (maximum circuit ten NT0X64) Optional audible alarm cutoff key (NT5X86) panel (NT5X86) DMS switch Cross-aisle ACD (NT0X63) Optional audible...

  • Page 40: Mtm Alarm System Circuits

    4-4 Version 2 Enhanced Alarm System In the EAS OAU, the NT3X82AC and AD cards replace the NT3X82AA and AB cards. These new cards are backward compatible and provide the additional features listed above. The NT3X82AA and NT3X82AB cards do not provide these features.

  • Page 41: Visual Alarm Indications And Manual Controls

    Version 2 Enhanced Alarm System 4-5 The main audible alarm panel contains the following signaling devices: critical bell, a loud bell that indicates the following alarm conditions: — dead system alarm, — critical DMS system equipment failure — critical DMS power plant failure —...

  • Page 42: Acd Panel With Common Audible Alarm

    4-6 Version 2 Enhanced Alarm System (visual display unit) provides the UI at the MAP terminal. Lamps and control switches mount on panels located at the MAP and at the main exit doors. You can install additional panels (optional) at other office locations. Each equipment aisle also has lamps that indicate local alarm conditions.

  • Page 43: Alarm Display Panel

    Version 2 Enhanced Alarm System 4-7 Table 4-1 Functions of ACD panel with common audible alarm (continued) Designation Device Function Power Dist Center ABS Lamp (red) Signals an alarm battery supply failure at a PDC. Office Alarm Unit Lamp (amber) Signals an alarm system hardware failure at the OAU or standby MTM Critical Power Plant...

  • Page 44: Exit Alarm Panel

    4-8 Version 2 Enhanced Alarm System the alarm display panel are the same as those on the ACD. Table 4-1 describes these functions. Figure 4-4 Alarm display panel Power Night Alarm Alarm Alarm Critical Dist Transfer Grouping Transfer System Center Power Dist Major...

  • Page 45: Equipment Aisle Visual Alarms

    Version 2 Enhanced Alarm System 4-9 The yellow trunk test center lamp lights to signal an incoming call on 101 test line in the TTC. The lamp lights if night alarm transfer is active. The yellow exit pilot lamps are numbered 1 through 12. The pilot lamps are available for each floor with an alarm reporting system, DMS floor, or non-DMS floor.

  • Page 46: Power Distribution Frame Upgrades

    4-10 Version 2 Enhanced Alarm System allows the addition of up to ten additional exit alarm panels to the alarm system. The extension circuit permits selective control of the audible alarm panels. You require control when audible alarm panels are configured with the audible alarm cutoff control circuit (NT5X86AA) and the audible alarm cutoff key panel (NT5X86AB).
  • Page 47 Version 2 Enhanced Alarm System 4-11 Table 4-2 Features of OAS System Features Alarm system for a Common audible alarm with reset and disable and the following visual remote line module alarm indicators: (RLM) critical - both remotely located line modules of a pair are system busy major - a ringing generator or bus interface card fault is present at the site...
  • Page 48 4-12 Version 2 Enhanced Alarm System Table 4-2 Features of OAS (continued) System Features Complete alarm system A VDU display of the following: for a large office a maximum of 40 equipment rows alarm loop closures to distributing frame visual alarm indicators and controls remote alarm transfer alarm grouping standard audible alarms with reset...

  • Page 49: Low Power Alarm System

    Low Power Alarm system The Low Power Alarm (LPA) system is a monitor and report system that provides audible and visual alarm indications for DMS-100 Family office equipment and any related non-DMS equipment connected to the office. The LPA system replaces the following Office Alarm System (OAS) versions: Version 1 Version 2...

  • Page 50: Low Power Alarm System

    5-2 Low Power Alarm system Visual display units (VDU) provide strategically located lights for alarm indication. These VDU also provide manual controls for alarm transfer, (audible) alarm silencing, and the capability to test alarm indicator lights. Low Power Alarm system The following sections contain a description of the LPA system functions and components.

  • Page 51: Low Power Alarm System Components

    Low Power Alarm system 5-3 Office voice loop The LPA system supports voice communication anywhere in the office equipment frames or cabinets. The LPA system also provides the capability to interface a standard POTS (plain old telephone service) line instead of a local talk circuit.
  • Page 52 5-4 Low Power Alarm system The NT3X82BA and NT3X83BA cards are powered by the following power sources on the ISM backplane: A, B, and ABS. For a detailed description of the NT3X82BA and NT3X83BA cards, see Hardware Description Manual. Hardware The following table lists LPA system components and identifies earlier alarm system components replaced by the LPA system components.
  • Page 53 Low Power Alarm system 5-5 Table 5-1xxx LPA system components (continued) LPA component Description Replaces NT3X83BA Alarm transfer/sender circuit card NT3X84AA. NT3X84AB NT3X89EA Alarm cross-connect (AXU) panel NT3X89CA If Version 2 and EAS panels are used with LPA system components, the following rules apply: The Version 2 and EAS panels must be physically located after the LPA panels.
  • Page 54 5-6 Low Power Alarm system Figure 5-1xxx NT0X63LA LPA alarm control and display panel FW-31760 Power Data Loop Night Critical Dist Alarm System Lamp Center IOU (A) Transfer Test Major Alarm Critical Audible System Grouping MDF (A) Alarm Reset Minor Critical Alarm Audible...
  • Page 55 Low Power Alarm system 5-7 Table 5-2xxx LED labels LED label Explanation Critical System Critical DMS failure Major System Major DMS failure Minor System Minor DMS failure Major Other System Major non-DMS failure Minor Other System Minor non-DMS failure Power Dist. Center Alarm battery supply failure at PDC Office Alarm Unit NT3X82 in OAU failed because of a card, shelf, or...
  • Page 56 5-8 Low Power Alarm system Figure 5-3xxx NT0X63MA exit alarms and audible cutoff panel FW-31761 Night Alarm Transfer Alarm Grouping Test Audible Trunk Alarm Center Disable Power Alarm Plant Release CAD Panel NT0X63MA Rel Legend: Lamp R = red Lamp Y = yellow Figure 5-4xxx NT0X63MB audible cutoff panel...
  • Page 57 Low Power Alarm system 5-9 digital circuits which allow the unit to provide the following: — unique tones — test trunk center (TTC) chimes You can combine the NT0X66CA with any of the (older) alarm system units listed in the previous paragraph with the same office configuration. However, the NT0X66CA input signals must be driven from separate SD points.

  • Page 59: Alarm And Control Circuits

    Alarm and control circuits This chapter contains information on the alarms and the alarm and control circuits of the Office Alarm System (OAS). Alarms Office alarm unit alarms The alarm system generates the ABOAUFL (office alarm unit) or ABMTMFL (standby MTM or ISM) alarm when any of the following alarm conditions occurs: loss of -48V office battery supply to the office alarm unit (OAU) or standby maintenance trunk module (MTM) or integrated services...
  • Page 60 6-2 OAS alarm and Control Circuits the critical system lamp on the alarm control and display panel (ACD) to alert operating company personnel. The alarm system hardware generates the dead system alarm when the alarm circuits of the OAU and standby MTM or ISM detect a loss of communication with CC.
  • Page 61 OAS alarm and Control Circuits 6-3 The Enhanced DSA alarm is active when you set office parameter ENHANCED_DEAD_SYSTEM_ALARM in table OFCENG to YES. You do not require a restart to change the setting of this office parameter. Note that dead system alarms can occur during the change. Note 1: The Enhanced DSA does not function on some international switches.
  • Page 62 6-4 OAS alarm and Control Circuits 2 Operation of the SDOC3CUTOFF SD point occurs when an SDOC3 hardware link break occurs. 3 The link break does not affect network management IDOC3 hardware. 4 When you complete the DSA test, restoration of the SDOC3 hardware link occurs (See Figure 6-1).

  • Page 63: Fsp/Msp Alarms

    OAS alarm and Control Circuits 6-5 In the Version 2 OAS, remote dead system indication is provided in one or more of the following ways: You can install the OAU alarm transfer (NT3X83) card and activate the remote alarm transfer feature. Chapter 3 contains a description of the NT3X83 card.

  • Page 64: Power Distribution Center (Pdc) Alarms

    6-6 OAS alarm and Control Circuits cross-connections Assign one FSP or MSP alarm scan point for each equipment aisle in an office. For more information, refer to NT5X64 Series Communication Modules Description, Ordering Information, Installation, Operation, and Maintenance, 297-1001-157. When an FSP or MSP alarm scan point detects an aisle alarm loop (FSPA ISxx alarm) a 20 second delay loop will start in the OAU software.

  • Page 65: Low Power Alarm System

    OAS alarm and Control Circuits 6-7 voltage reaches a threshold. You can set the threshold by selecting one of the dip switch settings in listed the following table. Dip switch setting Threshold range –49.4 V to –50.5V –47.8V to – 48.8V –46.6V to –47.7V TEST –73.9V to –76.1V...

  • Page 66: A And B Feed Loss Detection Circuit

    6-8 OAS alarm and Control Circuits Dip switch functions (continued) Switch Label Application Alarm generation thresholds HIGH (international) –60V –64.5 to –65.5V MED (international) –60V –59.5V to –60.5V LOW (international) –60V –57.5V to –58.5V —end— A and B feed loss detection circuit The NT3X82 card has three power (PWR) relays that the system does not power up during normal operation.

  • Page 67: Trunk Test Center (Ttc) Alarms

    OAS alarm and Control Circuits 6-9 communication. In this situation, CC software cannot silence audible alarms. When the alarm system generates the dead system alarm, the audible alarm reset switch connects to the alarm system through contacts in the dead dystem relays.

  • Page 68: Trunk Test Center Night Alarm Transfer

    6-10 OAS alarm and Control Circuits Trunk test center night alarm transfer The night alarm transfer circuit provides the capability to transfer the TTC alarms to the main office alarm system. When the TTC area is not attended, you require this transfer. Operation of the locking night alarm transfer switch on the ACD or an exit alarm panel activates night alarm transfer.

  • Page 69: Dead System Alarm Sending

    OAS alarm and Control Circuits 6-11 indications at the distant office, operate of the alarm reset key twice. This cancels and then activates the remote alarm transfer. The Version 1 OAS transfer circuit contains four relays and the associated wiring. This circuit is in the office alarm circuit #2 (NT2X42) card in the OAU.

  • Page 70: Alarm Power Supplies

    6-12 OAS alarm and Control Circuits Alarms from succeeding floor: The system sends these alarms to the preceding floor. Detection of these alarms does not occur in the DMS. The system does not forward these alarms to the preceding floor unless alarm grouping is active in the DMS.

  • Page 71: Loop Closure

    OAS alarm and Control Circuits 6-13 The power supplies from the OAU and standby MTM or ISM connect to the alarm system. This connection occurs through the contacts of an SD point-controlled relay in each office alarm circuit 3 (NT2X43) card. Normally, only the power supplies in the OAU connect to the alarm system.

  • Page 72: Oas Version 1

    6-14 OAS alarm and Control Circuits OAS Version 1 In the Version 1 OAS, line 1 connects through the DF and the alarm crosspoint field to a transformer in the office alarm circuit #3 (NT2X43) card of the OAU. This transformer divides the line into a transmit and a receive path.

  • Page 73: Alarm Sending And Checking System

    OAS alarm and Control Circuits 6-15 The data loop jacks on each FSP or MSP in each equipment aisle in the office multiply from frame to frame. These jacks connect to the alarm crosspoint field shelf or AXU. At the alarm crosspoint field or AXU, the data loops of all odd aisles and all even aisles multiply together.
  • Page 74 6-16 OAS alarm and Control Circuits operator hears a tone from the office that indicates the severity of the alarm condition. The operating company assigns the tones and directory numbers in use for ASCS and the specified parameters for the feature. For more information, refer to the data schema section of Translations Guide.

  • Page 75: Remote Site Alarms

    OAS alarm and Control Circuits 6-17 Remote site alarms A remote site can have alarm capability with the use of scan and signal distribution cards. An ACD panel with common audible (CA) alarm is also at the remote site. When an alarm condition occurs, a scan point detects the condition.

  • Page 76: Centralized Alarm Reporting

    6-18 OAS alarm and Control Circuits The replaced circuits provide additional connections to visual alarm, audible alarm, and exit panels, and other DMS or non-DMS equipment not part of the OAU or AXU. Figure 6-2 RLM alarm extension NT2X57 Distribution NT5X92AB Distribution NT5X92AA...

  • Page 77: List Of Acronyms

    List of acronyms alarm battery supply alarm control and display Automatic Number Identification ASCS Alarm Sending and Checking System CAMA Centralized Automatic Message Accounting central control CCIS Common Channel Interoffice Signaling distribution frame Digital Multiplex Switching Dynamic Overload Control dead system alarm DMS-100 Family Alarm System Description Reference Manual BASE12...

  • Page 78: Eas

    7-2 List of acronyms Enhanced Alarm System External (subsystem) frame supervisory panel input/output controller interruptions per minute integrated services module Low Power Alarm (system) Maintenance and Administration Position main distribution frame maintenance trunk module Office Alarm System office alarm unit power distribution center peripheral module 297–1001–122 Standard 06.01 August 1999...

  • Page 79: Rlm

    List of acronyms 7-3 remote line module signal distribution Signal Transfer Point TOPS Traffic Operator Position System trunk test center trunk test position user interface visual display unit DMS-100 Family Alarm System Description Reference Manual BASE12...

  • Page 81: Index

    Index hardware 1-3 introduction 1-1 ACD panel with common audible alarm 4-6 table control 1-6 functions 4-6 alarm system alarms 6-1 illustration 4-6 alarm system hardware 1-3 alarm alarm transfer & sending card 5-3 ABMTMFL 2-6, 3-6, 6-1 alarms 6-1 ABOAUFL 2-6, 3-6, 6-1 audible 1-5 checking and sending system 6-15...
  • Page 82 8-2 Index CALM 6-18 EAS 4-1, 6-6, 6-8 card ACD panel with common audible alarm 4-6 alarm transfer & sending 5-3 functions 4-6 dead system with audibles 5-3 illustration 4-6 NT0X10 1-6, 2-1 alarm crossconnect unit panel 4-4 NT0X50 2-4 alarm display panel 4-7 NT0X89 6-14 illustration 4-8...
  • Page 83 Index 8-3 office data loop 5-2, 5-3 EAS 4-1 functions 5-1 Low Power Alarm system 5-1 Version 1 2-1, 6-12, 6-14 maintenance supervisory panel, alarms 6-5 Version 2 3-1, 6-8, 6-13, 6-14 maintenance trunk module 1-3 Version 2 Enhanced Alarm System 4-1, 6-6, 6-8 miscellaneous frame 4-9 versions 1-2 MSP, alarms 6-5...
  • Page 84 8-4 Index ABOAUFL 2-6, 3-6, 6-1 ALMSC 1-4, 1-6, 5-1, 6-7 scan points 1-4, 5-1 ALMSCGRP 1-4, 1-6, 5-1, 6-7 SD points 1-3, 5-1 ALMSD 1-4, 1-6, 5-1 service trunk module 1-3 ALMSDGRP 1-4, 1-6, 5-1 shelf layout, OAU Version 1 2-3 SFWALARM 1-7 signal distribution card 1-6, 2-1 table control 1-6...
  • Page 86 Information is subject to change without notice. Nortel Networks 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...

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