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Meridian 1

Line cards

Description

Document Number: 553-3001-105

Document Release: Standard 5.00

Date: June 1999

Year Publish FCC TM

Printed in the United States of America

Information is subject to change without notice. Nortel Networks Corpration 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 limits for a Class A digital device pursuant to Part 15 of the FCC rules, and

the radio interference regulations of Industry Canada. These limits are designed to provide reasonable

protection against harmful interference when the equipment is operated in a commercial environment. This

equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance

with the instruction manual, may cause harmful interference to radio communications. Operation of this

equipment in a residential area is likely to cause harmful interference in which case the user will be required to

correct the interference at their own expense.

SL-1 and Meridian 1 are trademarks of Nortel Networks Corporation.

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Page 1 All rights reserved Printed in the United States of America Information is subject to change without notice. Nortel Networks Corpration 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 limits for a Class A digital device pursuant to Part 15 of the FCC rules, and the radio interference regulations of Industry Canada.
Page 3 — 500/2500 line cards description and operation (553-2201-183) — QPC578 Integrated Services Digital Line Card description (553-2201-193) This document also contains information on the new NT1R20 Off-premise Station Analog Line Card. July 1995 Standard, release 2.00. This document is reissued to incorporated technical corrections.
Page 4 553-3001-105 Standard 5.00 June 1999...
Page 5: Table Of Contents
Line and telephone components ......NT1R20 Off-Premise Station Analog Line Card . . Introduction ..........
Page 6 Contents Physical description ........Functional description .
Page 7 Contents Power requirements ........Foreign and surge voltage protections .
Page 8 viii Contents Basic commands ........Configuring parameters .
Page 9 Contents NT8D09 Analog Message Waiting Line Card ..213 Introduction ..........Physical description .
Page 10 Contents Jumper strap settings ........Software service changes .
Page 11 Contents Connector pin assignments ........Configuration ..........Jumper strap settings .
Page 12 Contents 553-3001-105 Standard 5.00 June 1999...
Page 13 xiii List of figures Figure 1 Line cards in the Meridian 1 architecture ..... . . Figure 2 IPE line cards shown installed in an NT8D11 CE/PE Module ..Figure 3 IPE line cards shown installed in an NT8D37 IPE Module .
Page 14 List of figures Figure 13 Call connection sequence—near-end originating call ... . . Figure 14 Battery reversal answer and disconnect supervision sequence ..Figure 15 Hook flash disconnect supervision sequence .
Page 15 List of figures Figure 29 Line-side T1 interface connection to peripheral equipment ..Figure 30 Line-side T1 interface in off-premise application ....Figure 31 Line-side T1 interface connection to Norstar system .
Page 16 List of figures Figure 45 Display Status (D S) screen ....... . . Figure 46 Display Performance (D P) screen .
Page 17 List of figures xvii Figure 61 Analog message waiting line card—block diagram ....Figure 62 Analog message waiting line card—typical cross connection example Figure 63 Analog message waiting line card—jumper block and switch locations 228 Figure 64 OPX analog line card—faceplate .
Page 18 xviii List of figures Figure 77 16-port message waiting analog line card—block diagram ..Figure 78 16-port message waiting analog line card— typical cross connection example ......Figure 79 16-port message waiting analog line card—jumper block locations .
Page 19 List of tables Table 1 Line card characteristics ........Table 2 Differences between PE and IPE modules .
Page 20 List of tables Table 13 OPS analog line card—cable loop resistance and loss ... . Table 14 Line-side T1 card LED operation ......Table 15 Line-side T1 card—line interface unit electrical characteristics .
Page 21 List of tables Table 28 T1 bit error rate threshold settings ......Table 29 Set alarm options .
Page 22 xxii List of tables Table 43 Card unit number to E1 channel mapping (Part 1 of 2) ... Table 44 MMI commands and command sets (Part 1 of 2) ....Table 45 E1 bit error rate threshold settings .
Page 23 List of tables xxiii Table 58 Analog message waiting line card—environmental specifications . . . Table 59 Analog message waiting line card—backplane pinouts ... . Table 60 Transmission Profile Changes ....... Table 61 OPX analog line card—switchable pad gain settings .
Page 24 xxiv List of tables Table 73 Integrated services digital line card—environmental specifications . . Table 74 Integrated services digital line card—backplane pinouts ..Table 75 16-port message waiting analog line card— line interface unit electrical characteristics .
Page 25: About This Document
Page 1 of 290 About this document This document outlines the functions, specifications, applications, and operation of the various Meridian 1 line cards. This information is intended to be used as a guide when connecting the line cards to customer-provided station equipment.
Page 26 Page 2 of 290 About this document See the X11 software guide for an overview of software architecture, procedures for software installation and management, and a detailed description of all X11 features and services. This information is contained in two documents: —...
Page 27: Description
It then provides detailed technical specifications on each of the cards. This document describes nine line cards: — NT1R20 Off-Premise Station Analog Line Card — NT5D11 Line-side T1 Interface Card — NT5D33 and 34 Line-Side E1 Interface Card —...
Page 28: Meridian 1 Architecture
Page 4 of 290 Description Meridian 1 architecture A Meridian 1 switch is a digital telephone system that provides both voice and data transmission. The internal hardware is divided into the following functional areas (see Figure 1). Common equipment Common equipment circuit cards provide processor control, software execution, and memory functions to the system.
Page 29: Line Cards In The Meridian 1 Architecture
Description Page 5 of 290 Figure 1 Line cards in the Meridian 1 architecture Common Peripheral Terminal Equipment Equipment Equipment Analog phone line Analog telephone Analog line cards Network Analog phone line Customer interface modem Digital phone line Digital Processor telephone Digital Terminal...
Page 30 Line-side T1 equipment can include voice mail systems, voice response units (VRUs), foreign exchange stations (FXS), and key systems such as the Nortel Networks Norstar. Trunk cards are peripheral equipment circuit cards used to connect the Meridian 1 switch to telephone trunk facilities.
Page 31: Selecting A Line Card
Line card characteristics Super- vised Part Line Message Analog Archi- Number Description Lines Type Waiting Lines tecture NT1R20 Off-Premise Station Analog Interrupted dial Analog Line Card tone NT5D11 Line-side T1 Interface None Card NT5D33 Line-side E1 Interface None Card NT8D02...
Page 32: Intelligent Peripheral Equipment Line Cards
NT1R20 Off-Premise Station Analog Line Card The NT1R20 Off-Premise Station (OPS) Analog Line Card is an intelligent eight-channel analog line card designed to be used with 2-wire analog terminal equipment such as 500/2500 type phones and analog modems. Each...
Page 33 Description Page 9 of 290 NT8D02 Digital Line Card The NT8D02 Digital Line Card is an intelligent 16-channel digital line card that provides voice and data communication links between a Meridian 1 switch and modular digital telephones. Each of the 16 channels support voice-only or simultaneous voice and data service over a single twisted pair of standard telephone wire.
Page 34: Peripheral Equipment Line Cards
Page 10 of 290 Description Peripheral equipment line cards The following line cards are designed using the older Peripheral Equipment (PE) architecture. They are available to upgrade an existing system, but should not be used in new designs. QPC192 Off-Premise Extension (OPX) Line Card The QPC192 Off-Premise Extension (OPX) Analog Line Card is a four-channel analog line card designed to be used with 2-wire terminal equipment such as 500/2500 type analog phones, modems, and key systems.
Page 35: Installation
Description Page 11 of 290 Installation This section provides a high-level description of how to install and test line cards. For specific installation instructions, see Circuit card installation and testing (553-3001-211). Intelligent peripheral equipment (IPE) line cards can be installed in any IPE slot of either the NT8D11 Common/Peripheral Equipment (CE/PE) Module or the NT8D37 Intelligent Peripheral Equipment (IPE) Module.
Page 36: Ipe Line Cards Shown Installed In An Nt8D37 Ipe Module
Page 12 of 290 Description Figure 3 IPE line cards shown installed in an NT8D37 IPE Module PE Module Intelligent line cards Intelligent line cards Intelligent trunk cards Intelligent trunk cards BRSC BRSC Cont PE Pwr Sup Rng Gen Superloop Intelligent Peripheral Equipment Shelf...
Page 37: Pe Line Cards Shown Installed In An Nt8D13 Pe Module
Description Page 13 of 290 Figure 4 PE line cards shown installed in an NT8D13 PE Module PE Module Line and trunk Line and trunk cards cards PE Pwr Sup Rng Gen X6/Y1 X7/Y2 X8/Y3 X9/Y4 X10/Y5 Loop Peripheral Equipment Shelf 553-3101 Line cards Description...
Page 38 Page 14 of 290 Description When installing line cards, these general procedures should be used: — Configure the jumpers and switches on the line card (if any) to meet your system needs. — Install the line card into the slot you have selected. —...
Page 39: Operation
Table 2. Host interface bus The original (SL-1 architecture) switches that Nortel Networks produced used a bus standard for line and trunk cards called the peripheral equipment (PE) bus. Newer switches (Meridian 1 architecture) use an improved version of this bus: the intelligent peripheral equipment (IPE) bus.
Page 40: Differences Between Pe And Ipe Modules
Page 16 of 290 Description Table 2 Differences between PE and IPE modules Intelligent Peripheral Parameter Peripheral Equipment Equipment Card 31.75 x 25.4 x 3.6 cm. 31.75 x 25.4 x 2.2 cm. Dimensions (12.5 x10.0 x 1.4 in.) (12.5 x10.0 x 0.875 in.) Network SL-1 Network Loops DS-30X Loops...
Page 41: Network Connections To Pe/Ipe Modules
Description Page 17 of 290 Figure 5 Network connections to PE/IPE modules Common NT8D37 IPE Module Equipment NT1R20 (Network) OPS Analog Line Card DS-30Y NT8D02 loop DS-30X NT8D04 Digital NT8D01 Superloop Line Card Controller Network Card Card NT8D09 Analog Message...
Page 42: Typical Ipe Analog Line Card Architecture
Page 18 of 290 Description Intelligent peripheral equipment Intelligent peripheral equipment (IPE) line cards all have a similar architecture. Figure 6 shows a typical IPE line card architecture. The various line cards differ only in the number and types of line interface units. Figure 6 Typical IPE analog line card architecture Input/output...
Page 43 Description Page 19 of 290 The Meridian 1 switch communicates with IPE modules over two separate interfaces. Voice and signaling data are sent and received over DS-30X loops, and maintenance data is sent over a separate asynchronous communications link called the card LAN link. Signaling data is information directly related to the operation of the telephone line.
Page 44 Page 20 of 290 Description IPE digital line cards receive the data from the digital phone terminal as 512 kHz time compressed multiplexed (TCM) data. The digital line card converts that data to a format compatible with the DS-30X loop and transmits it in the next available timeslot.
Page 45: Ds-30X Loop Data Format
Description Page 21 of 290 Figure 7 DS-30X loop data format DS-30X loop data words Frame sync 5.12 MHz 2.56 MHz Frame sync DS-30X loop W31DV W0B7 W0B6 W0B5 W0B4 W0B3 W0B2 W0B1 W0B0 W0SB W0DV W1B7 data bits SB = SIGNALING BIT DV = DATA VALID 553-6151 DS-30Y network loops extend between controller cards and superloop...
Page 46 Page 22 of 290 Description A card LAN link bus is common to all of the line/trunk card slots within an IPE module (or IPE section of a CE/PE module). This bus is arranged in a master/slave configuration where the controller card is the master and all other cards are slaves.
Page 47 Description Page 23 of 290 Peripheral equipment Peripheral equipment (PE) line cards all have a similar architecture (shown in Figure 8). The various line cards differ only in the number and types of line interface units. Peripheral equipment (PE) line cards are not intelligent cards, but rather must work in conjunction with a QPC659 Dual-Loop Peripheral Buffer Card (see Figure 5).
Page 48: Typical Pe Line Card Architecture
Page 24 of 290 Description Figure 8 Typical PE line card architecture SL-1 Network loop Voice Front Multiplex panel Line control Interface logic Ring Unit Signal- Card Signaling enable logic Line address Timeslot 0 +5 V dc Ringing analog hybrid ±15 V dc –...
Page 49: Line Unit Address Decoding
Description Page 25 of 290 Table 3 Line unit address decoding Line Unit Select Address Line Interface Signals used by: Unit -ADD3 -ADD2 -ADD1 -ADD0 Single Density Cards Dual Density Cards Quad Density Cards Note: Single density line cards have either two or four line units per card. Dual density line cards have eight line units per card.
Page 50 Page 26 of 290 Description The line interfaces provided by the line cards connect SL-1 Network loops to conventional 2-wire (tip and ring) line facilities. Peripheral equipment (PE) analog line cards convert the incoming analog voice and signaling information to digital form and route it to the Meridian 1 common equipment (CE) CPU over SL-1 network loops.
Page 51: Sl-1 Network Loop Data Format
Description Page 27 of 290 Figure 9 SL-1 Network loop data format 32 time slots x 8 bits = 256 bits per frame 2.048 TS31 SIGN SIGN SIGN SIGN TS29 TS30 TS31 553-6152 Line cards Description...
Page 52 Page 28 of 290 Description SL-1 Network loop signaling is used to send SL-1 Network loop signaling messages to and receive messages from the peripheral equipment cards. A typical message to the PE card directs the card to enable the front panel fault LED, enable ringing onto a particular line, or light the message waiting lamp for a particular line.
Page 53: Analog Line Interface Units
Description Page 29 of 290 Analog line interface units Once the 8-bit digital voice signal has been received by the analog line card, it must be converted back into an analog signal, filtered, converted from a 4-wire transmission path to a 2-wire transmission path, and driven onto the analog telephone line.
Page 54 Line interface and foreign voltage protection connects the balancing network to the telephone tip and ring pairs. The off-premise line card (NT1R20) has circuitry that protects the line card from foreign voltage surges caused by inadvertent power line connections and lightning surges.
Page 55 Description Page 31 of 290 The line interface unit (Figure 10) has a relay that applies the ringing voltage onto the phone line. The RSYNC signal from the 20 Hz (nominal) ringing voltage power supply is used to prevent switching of the relay during the current peak.
Page 56: Digital Line Interface Units
These lines carry multiplexed PCM voice, data and signaling information as time compression multiplexed (TCM) loops. Each TCM loop can be connected to a Nortel Networks “Meridian Modular Digital” telephone set. The digital line interface card contains one or more digital line interface units (Figure 11).
Page 57 Description Page 33 of 290 The 4-wire to 2-wire conversion circuit converts the 2-wire tip and ring leads into a 4-wire (Tx and ground and RX and ground) signal that is compatible with the digital line interface circuit. TCM loop interfaces Each digital phone line terminates on the digital line card at a TCM loop interface circuit.
Page 58: Analog Line Call Operation
Page 34 of 290 Description Analog line call operation The applications, features, and signalling arrangements for each line interface unit are configured in software and implemented on the card through software download messages. When an analog line interface unit is idle, it provides a voltage near ground on the tip lead and a voltage near –48 V dc on the ring lead to the near-end station.
Page 59: Call Connection Sequence-Near-End Station Receiving Call
Description Page 35 of 290 Figure 12 Call connection sequence—near-end station receiving call Near-end station Far-end Meridian 1 station through PSTN State Signal/direction Remarks High- Ground on tip/ resistance battery on ring loop Line card unit idle No battery current drawn. Far-end station goes off hook and addresses (dials up) near-end station.
Page 60 Page 36 of 290 Description Figure 13 Call connection sequence—near-end originating call Near-end station Far-end Meridian 1 station through PSTN State Signal/direction Remarks High- Ground on tip/ resistance battery on ring loop Line card unit idle No battery current drawn. Low-resistance loop Call request Near-end station goes off hook.
Page 61 Description Page 37 of 290 In both cases, the message waiting indication will continue until the user checks his or her messages. At that time, the Meridian 1 system will cancel the message waiting indication by sending another message across the Card LAN link or SL-1 network loop.
Page 62 Page 38 of 290 Description Figure 14 Battery reversal answer and disconnect supervision sequence Line Meridian 1 card Far-end Near-end station station State Signal/direction Remarks High- resistance Ground on tip/ loop battery on ring Line card unit idle No battery current drawn. Low-resistance loop Call request Near-end station goes off hook.
Page 63 Description Page 39 of 290 Figure 15 Hook flash disconnect supervision sequence Line Meridian 1 card Far-end Near-end station station State Signal/direction Remarks High- Ground on tip/ resistance loop battery on ring Line card unit idle No battery current drawn. Call request Far-end station goes off hook and addresses (dials up) near-end station.
Page 64: Digital Line Call Operation
Page 40 of 290 Description Digital line call operation Digital line call operation is controlled entirely by use of messages between the digital telephone set and the Meridian 1 system. These messages are carried across the TCM loop interface. There is no call connection sequence similar to the one used for analog telephone line operation.
Page 65 Description Page 41 of 290 Loop Start Mode In Loop Start mode , the A and B bits have the following meaning: Transmit from LTI:A bit = 0 (tip ground on) B bit = Ringing (0=on, 1=off) Receive to LTI: A bit = Loop (0=open, 1=closed) B bit = 1 (no ring ground) When a T1 channel is idle, the line-side T1 card simulates a ground on the tip lead and -48Vdc on the ring lead to the terminal equipment by setting its...
Page 66 Page 42 of 290 Description Call disconnect from far end (PSTN, private network or local Station) When a call is in process, the central office may disconnect the call from the Meridian 1. If the line-side T1 port has been configured with the supervised analog line (SAL) feature, the line-side T1 card will respond to the distant end disconnect message by momentarily changing its transmit A bit to 1 and then returning it to 0.
Page 67 Description Page 43 of 290 Alternatively, Call disconnect from line-side T1 terminal equipment while a call is in process, the terminal equipment may disconnect by going on-hook. The terminal equipment detects no loop current and sends signaling to the line-side T1card that causes its receive A bit to change from 1 to 0. The call is now released.
Page 68: Loop Start Call Processing A/B Bit Settings
Page 44 of 290 Description Table 4 Loop Start Call Processing A/B Bit Settings Transmit Receive State Idle Incoming Calls: — Idle — Ringing is applied from line-side T1 card — Terminal equipment goes off-hook — Line-side T1 card stops ringing Outgoing Calls: —...
Page 69 Description Page 45 of 290 During outgoing calls from the terminal equipment, a Outgoing Calls channel is seized when the terminal equipment goes off-hook, simulating a ground to the ring lead toward the line-side T1 card by causing the line-side T1’s receive B bit to change from 1 to 0.
Page 70 Page 46 of 290 Description Alternatively, Call disconnect from line-side T1 terminal equipment while a call is in process, the terminal equipment may disconnect by going on-hook, causing the line-side T1’s receive A bit to change to 0. The line-side T1 card responds to this message by simulating the removal of ground from the tip by changing its transmit A bit to 1.
Page 71: Ground Start Call Processing A/B Bit Settings
Description Page 47 of 290 Table 5 Ground Start Call Processing A/B Bit Settings Transmit Receive State Idle Incoming Calls (to terminal equipment): — Idle — Ringing is applied from line-side T1 card by simulating ground on tip lead and ringing on ring lead. —...
Page 72: Voice Frequency Audio Level
Page 48 of 290 Description In telephone lines or trunks, glare occurs when a call Glare restrictions origination attempt results in the answering of a terminating call that is being presented by the far end simultaneously with the call origination attempt by the near end.
Page 73: Line Protectors
Description Page 49 of 290 Two line cards, the NT1R20 Off-Premise Station Line Card and the QPC192 Off-Premise Extension Line Card, have built-in protection against lightning strikes and power line crosses. These should be the preferred cards for an off-premise application. Some of the other cards can be used when external line protectors are installed.
Page 74: Line Protection Device Ordering Information
Page 50 of 290 Description Table 6 Line protection device ordering information Device order code Manufacturer Analog Digital Line Line UP2S-235 UP2S-75 ITW Linx Communications 201 Scott Street Elk Grove Village, IL 60007 (708) 952-8844 or (800) 336-5469 Oneac Corporation 27944 North Bradley Road Libertyville, IL 60048-9700 (800) 553-7166 or (800) 327-8801 x555...
Page 75: Line And Telephone Components
— QPC594 16-port Line Card — QPC789 16-port Line Card with Message Waiting Note 1: The NT1R20 Off-Premise Station Line Card and the QPC192 Off-Premise Extension Line Card both have protection against lightning strikes and voltage surges built onto the card. These circuits protect the card and the PBX, but do not protect the instrument on the other end of the line.
Page 76 Page 52 of 290 Description 553-3001-105 Standard 5.00 June 1999...
Page 77: Nt1R20 Off-Premise Station Analog Line Card
NT1R20 Off-Premise Station Analog Line Card Introduction The NT1R20 Off-Premise Station (OPS) Analog Line Card is an intelligent peripheral equipment (IPE) device that can be installed in either the NT8D37 IPE Module or the NT8D11 CE/PE Module. The OPS analog line card interfaces eight analog telephone lines with hazardous and surge voltage protection to the Meridian 1 switch.
Page 78 Page 54 of 290 NT1R20 Off-Premise Station Analog Line Card The faceplate of the card is equipped with a red light-emitting diode (LED) (see Figure 16). When an OPS analog line card is installed, the LED remains lit for two to five seconds while the self-test runs. If the self-test completes successfully, the LED flashes (off/on) three times and remains lit until the card is configured and enabled in software;...
Page 79 NT1R20 Off-Premise Station Analog Line Card Page 55 of 290 Figure 16 OPS analog line card—faceplate Card lock latch Anlg LC This symbol indicates that field-selectable jumper strap settings are located on this card NT1R20 Rlse 0x Card lock latch...
Page 80: Functional Description
Page 56 of 290 NT1R20 Off-Premise Station Analog Line Card Functional description Figure 17 shows a block diagram of the major functions contained on the off-premise station (OPS) analog line card. Each of these functions are described on the following pages.
Page 81: Card Interfaces
NT1R20 Off-Premise Station Analog Line Card Page 57 of 290 Card interfaces The OPS analog line card passes voice and signaling data over DS-30X loops and maintenance data over the card LAN link. These interfaces are discussed in detail in “Intelligent peripheral equipment line cards” on page 8.
Page 82: Card Control Functions
Page 58 of 290 NT1R20 Off-Premise Station Analog Line Card Card control functions Control functions are provided by a microcontroller, a Card LAN link, and signaling and control circuits on the OPS analog line card. Microcontroller The OPS analog line card contains a microcontroller that controls the internal operation of the card and the serial card LAN link to the controller card.
Page 83: Circuit Power
NT1R20 Off-Premise Station Analog Line Card Page 59 of 290 Card LAN interface Maintenance data is exchanged with the Common Equipment CPU over a dedicated asynchronous serial network called the Card LAN link. The Card LAN link is described in the section “Intelligent peripheral equipment” on page 18.
Page 84: Electrical Specifications
Page 60 of 290 NT1R20 Off-Premise Station Analog Line Card Electrical specifications This section lists the electrical characteristics of the OPS analog line card. Analog line interface Table 7 lists the electrical characteristics of OPS analog line card line interface units.
Page 85: Power Requirements
NT1R20 Off-Premise Station Analog Line Card Page 61 of 290 Power requirements Table 8 shows the maximum power consumed by the card from each system power supply. Table 8 OPS analog line card—power requirements Voltage Tolerance Current (max.) ±15.0 V dc ±...
Page 86: Ringer Limitations
Page 62 of 290 NT1R20 Off-Premise Station Analog Line Card Ringer limitations The OPS line card supports up to three NE-C4A (3 REN) ringers on each line for either ONS or OPS applications. This is shown in Table 9. Table 9 OPS analog line card—ringer limitations...
Page 87: Connector Pin Assignments
NT1R20 Off-Premise Station Analog Line Card Page 63 of 290 Connector pin assignments The OPS analog line card brings the eight analog phone lines to the IPE backplane through a 160-pin connector shroud. The backplane is cabled to the input/output (I/O) panel on the rear of the module, which is then connected to the main distribution frame (MDF) by 25-pair cables.
Page 88 Page 64 of 290 NT1R20 Off-Premise Station Analog Line Card Figure 18 OPS analog line card—typical cross connection example Meridian 1 Cross-connect OPS or ONS telephone NT8D37 connections IPE Module Module NT1R20 I/O Panel Off-premise Connector Slot 0 Station Line Card...
Page 89: Configuring The Ops Analog Line Card
NT1R20 Off-Premise Station Analog Line Card Page 65 of 290 Configuring the OPS analog line card The line type, terminating impedance, and balance network configuration for each unit on the card is selected by software service change entries at the system terminal and by jumper strap settings on the card.
Page 90: Ops Analog Line Card-Configuration
Page 66 of 290 NT1R20 Off-Premise Station Analog Line Card Table 12 OPS analog line card—configuration Application On-premise station (ONS) Off-premise station (OPS) Class of Service (CLS) (Note 1) Loop resistance 0–460 0–2300 (Note 2) (ohms) Jumper strap Both JX.0 and JX.1 Both JX.0 and JX.1...
Page 91 NT1R20 Off-Premise Station Analog Line Card Page 67 of 290 Figure 19 OPS analog line card—jumper block locations 553-6191 Line cards Description...
Page 92: Port-To-Port Loss Configuration
Page 68 of 290 NT1R20 Off-Premise Station Analog Line Card Port-to-port loss configuration The OPS analog line card provides transmission loss switching for control of end-to-end connection loss. Control of loss is a major element in controlling transmission performance parameters such as received volume, echo, noise, and crosstalk.
Page 93: Applications
Page 69 of 290 Applications Off-premise station application The NT1R20 Off-Premise Station (OPS) Analog Line Card is designed primarily to provide an interface for Meridian 1 off-premise station lines. An OPS line serves a terminal—typically, but not exclusively, a telephone set—remote from the PBX either within the same serving area as the local...
Page 94 Page 70 of 290 NT1R20 Off-Premise Station Analog Line Card Figure 20 Traditional OPS application configuration Meridian 1 OPS analog CO trunk line card port card port 4.5 dB maximum 0–3.5 dB Local OPS line Public facility Network Distant termination...
Page 95: Transmission Considerations
NT1R20 Off-Premise Station Analog Line Card Page 71 of 290 Transmission considerations The transmission performance of OPS lines is dependent on the following factors: — the Meridian 1 port-to-port loss for connections between OPS ports and other Meridian 1 ports —...
Page 96 Page 72 of 290 NT1R20 Off-Premise Station Analog Line Card The following requirements are based on historic inserted connection loss (ICL) objectives: • PBX–CO trunk: 5 dB with gain; 0–4.0 dB without gain • OPS line: 4.0 dB with gain; 0–4.5 dB without gain In recent times economic and technological considerations have led to modifications of these historic objectives.
Page 97 NT1R20 Off-Premise Station Analog Line Card Page 73 of 290 Termination transmission characteristics The loss plan for OPS connections is designed so that a connection with an OPS termination will provide satisfactory end-to-end listener volume when the OPS termination is a standard telephone set. The listener volume at the...
Page 98 Page 74 of 290 NT1R20 Off-Premise Station Analog Line Card 553-3001-105 Standard 5.00 June 1999...
Page 99: Nt5D11 Line-Side T1 Interface Card
Page 75 of 290 NT5D11 Line-side T1 Interface Card Introduction The NT5D11 Line-side T1 Interface Card is an intelligent peripheral equipment (IPE) line card that can be installed in either the NT8D37 IPE module (up to eight cards), or the NT8D11 CE/PE module (up to five cards). The line-side T1 card interfaces one T1 line, carrying 24 channels, to the Meridian 1 switch.
Page 100: Card Connections
(I/O) panel. The I/O panel connector then connects directly to a T1 line, external alarm and an MMI terminal or modem using the NT5D13AA Line-side T1 I/O cable available from Nortel Networks. Faceplate The faceplate of the card is twice as wide as the other standard analog and digital line cards, thereby occupying two card slots.
Page 101 NT5D11 Line-side T1 Interface Card Page 77 of 290 Figure 21 Line-side T1 card—faceplate Card lock latch Card status LED This symbol indicates that field-selectable switch settings are located on this card Warning LEDs YEL ALM RED ALM MAINT NT5D11 Rlse 0x Card lock latch 553-6478...
Page 102 Page 78 of 290 NT5D11 Line-side T1 Interface Card Note: Note: The STATUS LED indicates the enabled/disabled status of both card slots of the line-side T1 card simultaneously. To properly enable the card, both the motherboard and the daughterboard slots must be enabled.
Page 103 NT5D11 Line-side T1 Interface Card Page 79 of 290 LED indicates whether the line-side T1 card is fully operational MAINT because of certain maintenance commands being issued through the MMI. (See “Man-Machine T1 maintenance interface software” on page 109 for information on T1 link maintenance.) If the card detects that tests are being run or that alarms have been disabled through the MMI, this LED will light and will remain lit until these conditions are no longer detected, at which time...
Page 104: Functional Description
Page 80 of 290 NT5D11 Line-side T1 Interface Card Functional description Figure 22 shows a block diagram of the major functions contained on the line-side T1 card. Each of these functions is described on the following pages. Figure 22 Line-side T1 card—block diagram Front panel LEDs...
Page 105: Overview
NT5D11 Line-side T1 Interface Card Page 81 of 290 Overview The line-side T1 card is an intelligent peripheral equipment (IPE) line card that provides a cost-effective all-digital connection between T1 compatible terminal equipment (such as voice mail systems, voice response units, trading turrets, etc.) and a Meridian 1 system.
Page 106: Card Interfaces
Page 82 of 290 NT5D11 Line-side T1 Interface Card Card interfaces The line-side T1 card passes voice and signaling data over DS-30X loops through the DS-30X Interfaces circuits and maintenance data over the card LAN link. These interfaces are discussed in detail in “Intelligent peripheral equipment”...
Page 107 NT5D11 Line-side T1 Interface Card Page 83 of 290 Microcontrollers The line-side T1 card contains two microcontrollers that control the internal operation of the card and the serial card LAN link to the controller card. The microcontrollers control the following: —...
Page 108 Page 84 of 290 NT5D11 Line-side T1 Interface Card Sanity timer The line-side T1 card also contains a sanity timer that resets the microcontroller in the event of a loss of program control. If the timer is not properly serviced by the microcontroller, it times out and causes the microcontroller to be hardware reset.
Page 109: Electrical Specifications
NT5D11 Line-side T1 Interface Card Page 85 of 290 Electrical specifications Table 15 provides a technical summary of the T1 line interfaces, and Table 16 lists the maximum power consumed by the card. T1 channel specifications Table 15 provides specifications for the 24 T1channels. Each characteristic is set by dip switches.
Page 110: Foreign And Surge Voltage Protections
Page 86 of 290 NT5D11 Line-side T1 Interface Card Foreign and surge voltage protections In-circuit protection against power line crosses or lightning is not provided on the line-side T1 card. It does, however, have protection against accidental shorts to –52 V dc analog lines. When the card is used to service off-premise terminal equipment through the public telephone network, install a channel service unit (CSU) as part of your terminal equipment to provide external line protection.
Page 111: Installation And Configuration
NT5D11 Line-side T1 Interface Card Page 87 of 290 Installation and Configuration Installation and configuration of the line-side T1 card consists of six basic steps: Configure the dip switches on the line-side T1 card for your environment. Install the line-side T1 card into the selected card slots in the IPE shelf. Cable from the I/O panel to the CPE or CSU, MMI terminal or modem (optional), external alarm (optional), and other line-side T1 cards for daisy chaining use of MMI terminal (optional).
Page 112 Page 88 of 290 NT5D11 Line-side T1 Interface Card Figure 23 Line-side T1 card—T1 protocol dip switch locations switches 553-6479 553-3001-105 Standard 5.00 June 1999...
Page 113 NT5D11 Line-side T1 Interface Card Page 89 of 290 Line Supervisory Signaling protocol As described in “Line-side T1 call operation” on page 40, the line-side T1 card is capable of supporting loop start or ground start call processing modes. Make your selection for this dip switch position based on what type of line signaling your CPE equipment supports.
Page 114 Page 90 of 290 NT5D11 Line-side T1 Interface Card DSX-1 length Estimate the distance between the line-side T1 card and the hardwired local CPE or the Telco demarc RJ48 for the carrier facility connecting the line-side T1 and the remote CPE. Make your selection for this dip switch position based on this distance.
Page 115 NT5D11 Line-side T1 Interface Card Page 91 of 290 Tables 18 through 21 describe the proper dip switch settings for each type of T1 link. After the card has been installed, the MMI will display the DIP switch settings by using the command Display Configuration. See “Man-Machine T1 maintenance interface software”...
Page 116 Page 92 of 290 NT5D11 Line-side T1 Interface Card Table 19 Line-side T1 card—XPEC address dip switch settings (Switch S1, positions 3–6) XPEC S1 Switch S1 Switch S1 Switch S1 Switch Address Position 3 Position 4 Position 5 Position 6 553-3001-105 Standard 5.00 June 1999...
Page 117 NT5D11 Line-side T1 Interface Card Page 93 of 290 Table 20 Line-side T1 card—T1 Switch 2 (S2) dip switch settings Dip Switch Characteristic Selection Number T1 framing On = D4 Off = ESF T1 Coding On = AMI Off = B8ZS 3–5 CPE or CSU distance See Table 21...
Page 118: Installation
Page 94 of 290 NT5D11 Line-side T1 Interface Card Installation This section describes how to install and test the line-side T1 card. For more specific installation instructions for circuit cards in general, see Circuit card installation and testing (553-3001-211). When installed, the line-side T1 card occupies two card slots. It can be installed into either an NT8D11 Common/Peripheral Equipment (CE/PE) Module or an NT8D37 Intelligent Peripheral Equipment (IPE) Module.
Page 119 NT5D11 Line-side T1 Interface Card Page 95 of 290 Table 23 Line-side T1 card—NT8D37 IPE Module vintage level port cabling Number of ports Vintage Level cabled to I/O panel NT8D37AA 16 ports NT8D37BA 24 ports NT8D37DC 16 ports NT8D37DE 16 ports NT8D37EC 24 ports Available and restricted card slots in the NT8D11 CE/PE Module...
Page 120 Page 96 of 290 NT5D11 Line-side T1 Interface Card You cannot install the line-side T1 card into the following card slot pairs: Restricted: Motherboard/Daughterboard 2 and 3 3 and 4 5 and 6 6 and 7 8 and 9 If you must install the line-side T1 card into one of the restricted card slot pairs, you can rewire your IPE module card slot to the I/O panel by installing an additional NT8D81 cable from the line-side T1 card motherboard slot to the I/O panel and re-arranging the three backplane connectors for the affected...
Page 121 NT5D11 Line-side T1 Interface Card Page 97 of 290 For modules with vintage levels that Vintage levels cabling 16 ports cabled 16 ports to the I/O panel, you can install the line-side T1 card into the following card slot pairs: Available: Motherboard/Daughterboard 0 and 1...
Page 122: Cabling The Line-Side T1 Card
Page 98 of 290 NT5D11 Line-side T1 Interface Card Cabling the line-side T1 card After you have set the dip switches and installed the line-side T1 card into the selected card slots, you are ready to cable the line-side T1 card to the CPE or CSU equipment.
Page 123 NT5D11 Line-side T1 Interface Card Page 99 of 290 Figure 24 Line-side T1 card—connection using the NT5D13AA Line-side T1 Cable Meridian 1 Module NT8D81 NT8D37 I/O panel Tip & Ring NT5D13 Cable Module Maintenance Slot 0 Interface Cable (bl-w) T-1 tip receive data (w-bl) T-1 ring receive data CPE or CSU...
Page 124 Page 100 of 290 NT5D11 Line-side T1 Interface Card Cabling from the I/O panel at the Main Distribution Frame You may also choose to make all line-side T1 connections at the main distribution frame (MDF) if you prefer not to use the NT5D13AA Line-side T1 I/O cable at the I/O panel.
Page 125 NT5D11 Line-side T1 Interface Card Page 101 of 290 Table 24 Line-side T1 card—backplane pinouts Backplane I/O Panel Connector Pin Connector Pin Signal T1 Tip, Receive Data T1 Ring, Receive Data T1 Tip, Transmit Data T1 Ring, Transmit Data Alarm out, Normally open Alarm out, Common Alarm out, Normally closed No Connection...
Page 126 Page 102 of 290 NT5D11 Line-side T1 Interface Card Table 25 Line-side T1 card—NT5D13AA Connector pinouts NT5D13AA I/O Panel Line-side Line-side T1 cable Connector Lead Designations T1 I/O connector to external Connector equipment T1 Tip Receive Data DB15 male to T1 (P2) T1 Ring Receive Data Line-side T1 card is CPE transmit to network and...
Page 127 NT5D11 Line-side T1 Interface Card Page 103 of 290 T1 connections T1 signaling for all 24 channels is transmitted over P2 connector pins 1, 3, 9, and 11 as shown in Table 25. Plug the DB15 male connector labeled “P2” into the T1 link.
Page 128 Page 104 of 290 NT5D11 Line-side T1 Interface Card If you are installing only one line-side T1 card, cable from the DB9 female connector labeled “P5” (towards MMI terminal) to one of the COM ports on the back of any TTY, a PC running a terminal emulation program, or a modem.
Page 129 NT5D11 Line-side T1 Interface Card Page 105 of 290 Figure 25 Line-side T1 card—connecting two or more cards to the MMI terminal Alarm connection Tx & Rx Toward (tip & ring) NT5D13 Maintenance Interface Away from Cable (typ) NT8D81 I/O panel Tip &...
Page 130: Terminal Configuration
Page 106 of 290 NT5D11 Line-side T1 Interface Card Terminal configuration For the MMI terminal to be able to communicate to the line-side T1 card, the interface characteristics must be set to: — Speed - 1200 or 2400 bps, depending on the setting of switch position 1 of Switch 1 —...
Page 131 NT5D11 Line-side T1 Interface Card Page 107 of 290 Table 26 DX-30 to T1 time slot mapping T1 Channel Number Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Motherboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard...
Page 132 Page 108 of 290 NT5D11 Line-side T1 Interface Card Disconnect supervision The line-side T1 card supports far end disconnect supervision by opening the tip side toward the terminal equipment upon the Meridian 1 system's detecting a disconnect signal from the far end on an established call. The X11 software release 21 Supervised Analog Line Feature (SAL) must be configured in overlay 10 for each line-side T1 port.
Page 133: Man-Machine T1 Maintenance Interface Software
NT5D11 Line-side T1 Interface Card Page 109 of 290 Man-Machine T1 maintenance interface software Description The Man-Machine Interface (MMI) supplies a maintenance interface to a terminal providing T1 link diagnostics and historical information. See the “Installation and Configuration” on page 87 for instructions on how to install the cabling and configure the terminal for the MMI.
Page 134 Page 110 of 290 NT5D11 Line-side T1 Interface Card If the MMI detects T1 link failures for any of the remainder of the conditions monitored (out of frame condition, loss of signal condition, and blue alarm condition), the line-side T1 card automatically performs all alarm level 2 functions.
Page 135: Login And Password
NT5D11 Line-side T1 Interface Card Page 111 of 290 Login and Password The MMI can be accessed through any TTY, a PC running a terminal emulation program, or a modem. After installing the MMI terminal and card cables, you are ready to access the MMI firmware. For single card installations, it is accessed by entering L<CR>...
Page 136 Page 112 of 290 NT5D11 Line-side T1 Interface Card If you type ?<CR>, the MMI will list these commands along with an explanation of their usage A screen similar to the following will appear (the help screen will also appear by typing H<CR>, or HELP<CR>): ALARM USAGE: Alarm [Enable | Disable] CLEAR...
Page 137 NT5D11 Line-side T1 Interface Card Page 113 of 290 Table 27 MMI commands and command sets Command Description Alarm Disable. Disables all alarms. Alarm Enable. Enables all alarms. Clear Alarm. Clears all alarms, terminates line processing, and resets the T1 bit error rate and frame slip counters.
Page 138: Configuring Parameters
Page 114 of 290 NT5D11 Line-side T1 Interface Card Configuring parameters The MMI has been designed with default settings so that no configuration is necessary. However, you may want to reconfigure it based on your own environment. Set Time Before you begin to configure your MMI, login to the system and enter the current time.
Page 139 NT5D11 Line-side T1 Interface Card Page 115 of 290 — consists of activity with an error threshold above Alarm Level 2 (AL2) the AL2 setting. This is deemed to be an unsatisfactory condition. In this situation, the external alarm hardware will be activated by closing the normally open contact, the RED ALARM LED on the faceplate will light, an alarm message will be created in the alarm log and the MMI terminal, the line-side T1 card will enter line processing mode, and a...
Page 140 Page 116 of 290 NT5D11 Line-side T1 Interface Card The duration value is set in seconds and can be set from 1 to 3,600 seconds (1 hour). This duration value indicates how long the alarm will last. Low bit error rates (10 through 10 ) are restricted to longer durations since it takes more than one second to detect an alarm condition above 10...
Page 141 NT5D11 Line-side T1 Interface Card Page 117 of 290 In addition to bit errors, the Set Alarm function sets parameters for detecting frame slip errors by establishing a threshold necessary to activate an alarm. If the threshold value is exceeded, a level 2 alarm will be activated. The frame slip threshold can be specified from 1 to 255 frame slips per time period.
Page 142: Alarm Operation And Reporting
Page 118 of 290 NT5D11 Line-side T1 Interface Card Set Clearing The Set Clearing (S C) command set allows you to enable or disable self-clearing of alarms by answering Y or N to the question: “Enable Self Clearing? (YES or NO)”. If “Enable Self-Clearing” is chosen (the factory default condition), the system will automatically clear alarms after the alarm condition is no longer detected for the corresponding duration period.
Page 143 NT5D11 Line-side T1 Interface Card Page 119 of 290 Descriptions of the excessive bit error rate and frame slip errors conditions can be found in “Configuring parameters” on page 114. Bit errors may activate either a level 1 or level 2 alarm. The remaining conditions, when detected, will always cause the system to activate a level 2 alarm.
Page 144 Page 120 of 290 NT5D11 Line-side T1 Interface Card Clear Alarm The Clear Alarm (C A) command set will clear all activity initiated by an alarm: the external alarm hardware will be deactivated (the contact normally open will be reopened), the LED light will go out, an entry will be made in the alarm log of the date and time the alarm was cleared, and line processing will cease (for alarm level 2 only).
Page 145: Performance Counters And Reporting
NT5D11 Line-side T1 Interface Card Page 121 of 290 Display Status The Display Status (D S) command set displays the current alarm condition of the T1 link as well as the on-hook or off-hook status of each of the 24 ports of the line-side T1 card.
Page 146 Page 122 of 290 NT5D11 Line-side T1 Interface Card — Loss of frame seconds—loss of frame or loss of signal for three consecutive seconds — Framer slip seconds—one ore more frame slips in a second The MMI also maintains an overall error counter that is just a sum of all the errors counted for the five performance criteria listed above.
Page 147: Testing
NT5D11 Line-side T1 Interface Card Page 123 of 290 Display History Entering the Display History (D H) command set will display performance counters for each hour for the past 24 hours. A screen similar to the following will appear: LTI T1 Interface History Performance Log 3/03/95 1:35 Hour Errored Bursty...
Page 148 Page 124 of 290 NT5D11 Line-side T1 Interface Card Tests can be performed once (for 1 through 98 minutes), or continuously (selected by entering 99 minutes) until a “Stop Test” command is entered. Tests continue for the duration specified even if a failure occurs, and terminate at the end of the time period or when a “Stop Test”...
Page 149 NT5D11 Line-side T1 Interface Card Page 125 of 290 Figure 26 MMI Local loopback test Meridian 1 Line side Customer External Common premise T-1 link T-1 link network Equipment interface equipment card (CPE) 553-7562 Test 2, external loopback, assumes an external loopback is applied to the T1 link.
Page 150 Page 126 of 290 NT5D11 Line-side T1 Interface Card Test 3, network loopback, loops the received T1 data back toward the CPE equipment. No test data is generated or received by the line-side T1 card. If test 2 passes but test 3 fails, it indicates that the CPE device is defective. If test 2 was not run and test 3 fails, the T1 link or the CPE device could be defective.
Page 151: Applications
NT5D11 Line-side T1 Interface Card Page 127 of 290 Applications The line-side T1 interface is an Intelligent Peripheral Equipment (IPE) line card that provides cost-effective connection between T1-compatible peripheral equipment and a Meridian 1 system or off-premise extensions over long distances. Some examples of applications where a line-side T1 card can be interfaced to a T1 link are: —...
Page 152 For example, the line-side T1 card can be used to connect the Meridian 1 to a T1-compatible voice response unit (VRU). An example of this type of equipment is Nortel Open IVR system. In this way, the Meridian 1 can send a call to the VRU, and, because the line-side T1 card supports 2500-type functionality, the VRU is able to send the call back to the Meridian 1 for further handling.
Page 153 NT5D11 Line-side T1 Interface Card Page 129 of 290 Similarly, the line-side T1 can be used to provide a connection between the Meridian 1 system and a remote Norstar system (Figure 30). In this case, channel banks would not be required provided that the Norstar system is equipped with a T1 interface.
Page 154 Page 130 of 290 NT5D11 Line-side T1 Interface Card 553-3001-105 Standard 5.00 June 1999...
Page 155: Introduction
Page 131 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Introduction The Line-side E1 Interface card (LEI) is an intelligent peripheral equipment (IPE) line card. The LEI provides an all-digital connection between E1 compatible terminal equipment, such as a voice mail system, and a Meridian 1.
Page 156 The I/O panel connector connects to a E1 line, external alarm and an MMI terminal or modem, using the NT5D35 or NT5D36 Line-side I/O cable available from Nortel Networks. Faceplate The LEI faceplate is twice as wide as the other standard analog and digital line cards, thereby occupying two card slots.
Page 157 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 133 of 290 Figure 32 NT5D33AB Line-side E1 card—faceplate Line side E1 Interface YEL ALM RED ALM MAINT NT5D33AB Line cards Description...
Page 158 Page 134 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Figure 33 NT5D34AB Line-side E1 line card—faceplate Line side E1 Interface YEL ALM RED ALM MAINT NT5D34AB 553-3001-105 Standard 5.00 June 1999...
Page 159 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 135 of 290 The STATUS LED indicates whether or not the LEI has successfully passed its self test, and therefore, whether or not it is functional. When the card is installed, this LED remains lit for two to five seconds as the self-test runs. If the self-test completes successfully, the LED flashes three times and remains lit until the card is configured and enabled in software, at which time the LED goes out.
Page 160 Page 136 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards The YELLOW ALARM LED indicates that the LEI has detected a yellow alarm signal from the terminal equipment side of the E1 link. See “Man-Machine E1 maintenance interface software” on page 165 for information on E1 link maintenance.
Page 161: Functional Description
NT5D33 and NTRB34 Line-side E1 Interface Cards Page 137 of 290 Functional description Figure 34 shows a block diagram of the major functions contained on the line-side E1 card. Each of these functions is described on the following pages. Figure 34 Line-side E1 card—block diagram Line cards Description...
Page 162: Overview
Page 138 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Overview The Line-side E1 Interface card (LEI) is an intelligent peripheral equipment (IPE) line card that provides a cost-effective, all-digital connection between E1 compatible terminal equipment (such as voice mail systems, voice response units, trading turrets, etc.) and a Meridian 1 system.
Page 163: Card Interfaces
NT5D33 and NTRB34 Line-side E1 Interface Cards Page 139 of 290 Card interfaces The LEI passes voice and signaling data over DS-30X loops through the DS-30X Interface circuits and maintenance data over the card LAN link. E1 interface circuit The LEI contains one E1 line-interface circuit which provides 30 individually configurable voice interfaces to one E1 link in 30 different time slots.
Page 164 Page 140 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Microcontrollers The LEI contains a microcontroller that controls the internal operation of the card and the serial card LAN link to the controller card. The microcontroller controls the following: —...
Page 165: Electrical Specifications
NT5D33 and NTRB34 Line-side E1 Interface Cards Page 141 of 290 Sanity Timer The LEI also contains a sanity timer that resets the microcontroller in the event of a loss of program control. If the timer is not properly serviced by the microcontroller, it times out and causes the microcontroller to be hardware-reset.
Page 166: E1 Channel Specifications
Page 142 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards E1 channel specifications Table 32 provides specifications for the 30 E1 channels. Each characteristic is set via dip switch. See “Installation and Configuration” on page 144 for a discussion of the corresponding dip switch settings. Table 32 Line-side E1 card —...
Page 167 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 143 of 290 When the card is used to service off-premise terminal equipment through the public telephone network, install a Line Termination Unit (LTU) as part of your terminal equipment to provide external line protection. Environmental specifications Table 34 shows the environmental specifications of the LEI.
Page 168: Installation And Configuration
Page 144 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Installation and Configuration Installation and configuration of the LEI consists of six basic steps: Set the dip switches on the LEI for your call environment. Install the LEI into the selected card slots. Cable from the I/O panel to the LTU, man-machine interface (MMI) terminal or modem (optional), external alarm (optional), and other LEIs for daisy chaining use of MMI terminal (optional).
Page 169 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 145 of 290 Figure 35 Line-side E1 card—E1 protocol dip switch locations switches RP15 D6 D7 D4D5 C10 C9 RP14 RP17 RP13 RP12 RP11 RP10 RP16 R18 R17 R 16 R15 Line cards Description...
Page 170 Page 146 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Line Supervisory Signaling protocol The LEI is capable of supporting loop start or ground start call processing modes. Make your selection for this dip switch position based on what type of line signaling your CPE equipment supports.
Page 171 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 147 of 290 Note: All idle LEI lines will go off-hook and seize a Digitone Receiver when the off-hook line processing is invoked on E1 failure. This may prevent DID trunks from receiving incoming calls until the LEI lines time-out and release the DTRs.
Page 172 Page 148 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Table 35 Line-side E1 card—Switch #1 dip switch settings Switch Switch Factory Characteristic Selection Position Setting Default 1200 baud MMI port speed selection 2400 baud Ground start E1 signaling Loop start IPE Shelf address for LEI See Table 37...
Page 173 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 149 of 290 Table 37 Line-side E1 card—XPEC address dip switch settings (Switch S1, positions 3-6) XPEC S1 Switch S1 Switch S1 Switch S1 Switch Address Position 3 Position 4 Position 5 Position 6 Line cards Description...
Page 174 Page 150 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Table 38 Line-side E1 card—E1 Switch 2 (S2) dip switch settings Switch Switch Factory Characteristic Selection Position Setting Default E1 framing CRC-4 Disabled CRC-4 Enabled E1 coding HDB3 NOT USED leave ON leave OFF leave OFF...
Page 175: Installation
NT5D33 and NTRB34 Line-side E1 Interface Cards Page 151 of 290 Installation Because of the wiring in some of the Meridian 1 modules and cabinets, the LEI will only work in certain card slot pairs. These restrictions depend on the type of module or cabinet you have.
Page 176 Page 152 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards See Table 39 for the vintage level information for the NT8D11 CE/PE modules. See Table 40 for the vintage level information for the NT8D37 IPE modules. Table 39 Line-side E1 card—NT8D11 CE/PE Module vintage level port cabling Number of ports Vintage Level cabled to I/O panel...
Page 177 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 153 of 290 For modules with vintage levels that Vintage levels cabling 30 ports cabled 30 ports to the I/O panel, the LEI can be installed in any pair of card slots 0-9. For modules with vintage levels that Vintage levels cabling 16 ports cabled 16 ports to the I/O panel, you can install the LEI into the following...
Page 178 Page 154 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Alternatively, all LEI connections can be made at the main distribution frame instead of connecting the NT5D35AA or NT5D36AA Line-side E1 card external I/O cable at the I/O panel. This eliminates these card slot restrictions. Available and restricted card slots in the NT8D37 IPE Module If you are installing the LEI into an NT8D37 IPE Module, the card slots available depend on what vintage level module you have.
Page 179: Cabling The Line-Side E1 Card (Lei)
NT5D33 and NTRB34 Line-side E1 Interface Cards Page 155 of 290 If you must install the LEI into one of the restricted card slot pairs, you can rewire your IPE module card slot to the I/O panel by installing an additional NT8D81 cable from the LEI motherboard slot to the I/O panel, and re-arranging the three backplane connectors for the affected card slots.
Page 180 Page 156 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards In a coaxial E1 installation, you will make the connection from the I/O panel to the E1 link and other external devices through the NT5D36AA Line-side E1 I/O cable. This cable consists of a 25-pair amphenol connector (P1) on one end which plugs into the I/O panel.
Page 181 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 157 of 290 Table 41 Line-side E1 card—LEI backplane and I/O panel pinouts (Part 2 of 2) Backplane I/O Panel Signal connector pin connector pin Toward MMI terminal, transmit data Toward MMI terminal, receive data Daisy chain control 2 Daisy chain control 1 Ground...
Page 182 Page 158 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Table 42 Line-side E1 card—Line-Side E1 I/O cable pinouts (Part 2 of 2) I/O Panel LEI Cable Connector to External Connector Lead Designations Connector Equipment Toward MMI terminal, receive data DB9 male toward MMI (P5).
Page 183 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 159 of 290 For 75 ohm coaxial installations, E1 signaling for all 30 channels is transmitted over P2 connector pins 1, 3, 9, and 11 though an adapter and out two coaxial connectors Tx (transmit) and Rx (receive). Tx is the LEI output, and Rx is the LEI input from the E1 stream.
Page 184 Page 160 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards If you are installing only one LEI, cable from the DB9 male connector labeled “P5” (toward MMI terminal) to one of the COM ports on the back of any TTY, a PC running a terminal emulation program, or a modem.
Page 185 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 161 of 290 Figure 36 Line-side E1 card—connecting two or more cards to the MMI Line cards Description...
Page 186: Terminal Configuration
Page 162 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Terminal configuration For the MMI terminal to be able to communicate to the LEI, the interface characteristics must be set to: — speed - 1200 or 2400 bps — character width - 7 bits —...
Page 187 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 163 of 290 LEI circuitry routes 16 units (0-15) on the motherboard and 14 (0-13) units on the daughterboard to 30 E1 channels. The motherboard circuit card is located in the left card slot, and the daughterboard circuit card is located in right card slot.
Page 188 Page 164 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Table 43 Card unit number to E1 channel mapping (Part 2 of 2) E1 Channel Number Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Daughterboard Disconnect supervision The LEI supports distant-end disconnect supervision by opening the tip side...
Page 189: Man-Machine E1 Maintenance Interface Software
NT5D33 and NTRB34 Line-side E1 Interface Cards Page 165 of 290 After you have configured the software, you are ready to power-up the card and verify the self-test results. The STATUS LED on the faceplate indicates whether or not the LEI has successfully passed its self test, and is, therefore, functional.
Page 190 Page 166 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Alarms The MMI may be used to activate alarms for the following E1-link conditions: excessive bit-error rate, frame-slip errors, out-of-frame, loss-of-signal, and blue alarm. Pre-set thresholds and error durations trip LEI alarm notifications.
Page 191 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 167 of 290 E1 Performance Counters and Reports The MMI maintains performance error counters for the following E1 conditions: errored seconds, bursty seconds, unavailable seconds, framer-slip seconds, and loss-of-frame seconds. The MMI retains E1 performance statistics for the current hour, and for each hour for the previous 24.
Page 192: Basic Commands
Page 168 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Basic commands You can now execute MMI commands. The seven basic commands are: — Help — Alarm — Clear — Display — Set — Test — Quit If you type ? <CR>, the MMI will list these commands along with an explanation of their usage.
Page 193 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 169 of 290 Each of these commands can be executed by entering the first letter of the command or by entering the entire command. Commands with more than one word are entered by entering the first letter of the first word, a space, and the first letter of the second word or by entering the entire command.
Page 194: Configuring Parameters
Page 170 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Table 44 MMI commands and command sets (Part 2 of 2) Command Description Login. Logs into the MMI terminal in a single-LEI system. Login. Logs into the MMI terminal in a daisy-chained system, where xx represents the address of the card you wish to configure.
Page 195 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 171 of 290 Set Time Before you begin to configure your MMI, login to the system and verify the current time. Do this by entering the Set Time (S T) command. The MMI then displays the time it has registered.
Page 196 Page 172 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards When you select the Set Alarm command, you will be prompted to set the threshold level and duration for alarm levels 1 and 2. The E1 link processes at a rate of approximately 2.0 mb/s. The threshold value indicates the ratio of the total number of bits that must be detected as being in error per second before the LEI activates an alarm.
Page 197 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 173 of 290 The alarm indications (LEDs and external alarm contacts) will clear automatically after the specified period, or duration, has expired if the Set Clearing (S C) “Enable Self Clearing” option has been set. Otherwise, the alarm will continue until the command Clear Alarm (C A) has been entered.
Page 198 Page 174 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards When entering the Set Alarm (S A) command, the MMI will scroll through the previously described series of alarm options. These options will be displayed along with their current value, at which point you can enter a new value or enter a <CR>...
Page 199 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 175 of 290 Set Clearing The SET CLEARING (S C) command allows you to enable or disable self-clearing of alarms by responding to the question: Enable Self Clearing? (YES or NO). If YES is chosen (the factory default setting), the system will automatically clear (reset) alarms after the alarm condition is no longer detected.
Page 200 Page 176 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Set Mode At the SET MODE (S M) command, the MMI will prompt the user with the current signaling mode, either Default (Australian P2) or Table (of bit values.) Entering a <CR> will accept the current value, (see Figure 40,) or the user can type in 1 to revert to the Default, or 2 to edit the table entries.
Page 201 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 177 of 290 Figure 41 Set Mode (S M): Table screen (Part One) LEI:>S M 1) Default 2) Table Hit <CR> to acce pt current value or type in a new one. Current Mode : 1 New Mode : 2 Signaling Bits s et to Table.
Page 202 Page 178 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Figure 42 Set Mode (S M): Table screen (Part Two) O u t g o i n g c a l l S E I Z E R E C E I V E : C u r r e n t : 0 0 0 1 N e w : 1 1 1 E r r o r : N o t e e n o u g h v a l u e s s p e c i f i e d .
Page 203 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 179 of 290 Incoming call Ringer ON SEND - This is the value that the LEI will send to indicate that a call is incoming to the CPE and that ringing voltage should be applied at the CPE.
Page 204 Page 180 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Outgoing call DIAL BREAK RECEIVE - This is the value that the LEI expects to see from the CPE during the break part of the digit. This value is required.
Page 205 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 181 of 290 Figure 43 Display Configuration (D C) screen S/N 1103 Software Version 1.01 3/03/95 1:50 Alarms Enabled: Self Clearing Enabled: Alarm Level 1 threshold value: Threshold duration (in seconds): Alarm Level 2 threshold value: Threshold duration (in seconds): Frame slips alarm level threshold:...
Page 206 Page 182 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards If a repeating device loses signal, it will immediately begin sending an unframed signal of all ones to the distant end to indicate an alarm condition. This condition is called a blue alarm, or an alarm indication signal (AIS). If an AIS is detected for more than two seconds, a level 2 alarm will be declared, and silence will be sent on all receive timeslots.
Page 207 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 183 of 290 Figure 44 Display Alarm (D A) screen Alarm Log 2/03/99 1:48 Yellow alarm on E1 carrier 2/03/99 2:33 E1 carrier level 1 alarm 2/03/99 3:47 E1 carrier level 2 alarm 2/03/99 4:43 E1 carrier performance within thresholds...
Page 208: Performance Counters And Reporting
Page 184 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Figure 45 Display Status (D S) screen Software Version 1.01 3/03/95 1:50 In alarm state: E1 link at alarm level 0 Port 0 off hook, Port 1 on hook, Port 2 on hook, Port 3 on hook, Port 4 on hook, Port 5 on hook, Port 6 off hook, Port 7 off hook, Port 8 off hook, Port 9 on hook, Port 10 on hook, Port 11 on hook, Port 12 off hook, Port 13 on hook, Port 14 on hook, Port 15 on hook,...
Page 209 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 185 of 290 The MMI also maintains an overall error counter which is the sum of all errors counted for the performance criteria listed above. The error counter can only be cleared by entering the Clear Error (C E) command. It will stop counting at 65,000.
Page 210 Page 186 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Display History Entering the Display History (D H) command will display performance counters for each hour of the past 24 in reverse chronological order, beginning with the last full hour. A screen similar to Figure 47 will appear.
Page 211 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 187 of 290 Figure 48 Test Carrier (T) screen Test 1: Local Loopback Test Test 2: External Loopback Test Test 3: Network Loopback Test (1,2,3 or S to cancel): Tests can be performed once, for one through 98 minutes, or continuously (selected by entering 99 minutes) until a Stop Test command is entered.
Page 212 Page 188 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards Table 47 MMI Tests Test number Equipment Tested Test Description Local loopback E1 link, LEI, and E1 External loopback network CPE device and E1 Network loopback network Test 1, local loopback, loops the E1 link signaling toward itself at the backplane connector, and test data is generated and received on all timeslots.
Page 213: Figure
NT5D33 and NTRB34 Line-side E1 Interface Cards Page 189 of 290 Figure 51 MMI External loopback test Test 3, network loopback, loops the LEI's received E1 data back toward the CPE equipment. No test data is generated or received by the LEI. If test 2 passes but test 3 fails, it indicates that the CPE device is defective.
Page 214 For example, the LEI can be used to connect the Meridian 1 to an E1-compatible voice response unit (VRU). An example of this type of equipment is Nortel Open IVR system. In this way, the Meridian 1 can send a call to the VRU, and, because the LEI supports 2500-type functionality, the VRU is able to send the call back to the Meridian 1 for further handling.
Page 215 NT5D33 and NTRB34 Line-side E1 Interface Cards Page 191 of 290 The LEI can also be used to provide off-premise extensions to remote locations (up to 500 miles from the Meridian 1 system). In this application, analog telephone functionality is extended over E1 facilities, providing a telephone at a remote site with access to 2500-type line functionality (see Figure 54).
Page 216 Page 192 of 290 NT5D33 and NTRB34 Line-side E1 Interface Cards 553-3001-105 Standard 5.00 June 1999...
Page 217: Nt5D60Aa Class Modem Card (Xcmc)
Page 193 of 290 NT5D60AA CLASS Modem Card (XCMC) Introduction The NT5D60AA CLASS Modem card is introduced in X11 release 23 to support the Custom Local Area Signaling Services (CLASS) feature. The CLASS Modem card receives Calling Number and Calling Name Delivery (CND) data and time/date data from the system and transmits it to a line port, such as a port on an Analog Line card, which delivers the CND data to a CLASS telephone set when presenting the set with a new call.
Page 218: Functional Description
Page 194 of 290 NT5D60AA CLASS Modem Card (XCMC) Functional description The CLASS Modem card is designed to plug into any one of the peripheral card slots of the IPE module. The CLASS modem card supports up to 32 transmit-only modem resources, using a DS30X interface. Up to 255 modems may be configured per system.
Page 219 NT5D60AA CLASS Modem Card (XCMC) Page 195 of 290 Eight modems can be associated with each module. Table 48 shows time slot mapping for the CLASS modem card. Table 48 Time slot mapping (Part 1 of 2) XCMC mapping of TNs Modem units on the CLASS Modem card DS30X...
Page 220 Page 196 of 290 NT5D60AA CLASS Modem Card (XCMC) Table 48 Time slot mapping (Part 2 of 2) XCMC mapping of TNs Modem units on the CLASS Modem card DS30X timeslot module 3, 00 553-3001-105 Standard 5.00 June 1999...
Page 221: Electrical Specifications
NT5D60AA CLASS Modem Card (XCMC) Page 197 of 290 Electrical specifications This section lists the electrical characteristic of the CLASS modem card. Data transmission specifications Table 49 provides specifications for the 32 transmit-only modem resources. Table 49 CLASS modem card—data transmission electrical characteristics Characteristics Description Units per card...
Page 222: Software Service Changes
Page 198 of 290 NT5D60AA CLASS Modem Card (XCMC) Software service changes On systems which are equipped with either CNUMB or CNAME packages (packages 332 and 333 respectively), up to 255 CLASS Modem (CMOD) units can be configured in LD 13, and 500/2500 sets can be assigned as CLASS sets in LD 10 by assigning them CNUS, or CNUA and CNAA class of service.
Page 223: Nt8D02 Digital Line Card
Page 199 of 290 NT8D02 Digital Line Card Introduction The NT8D02 Digital Line Card is an intelligent peripheral equipment (IPE) device that can be installed in either the NT8D37 IPE Module or the NT8D11 CE/PE Module. It provides 16 voice and 16 data communication links between a Meridian 1 switch and modular digital telephones.
Page 224 Page 200 of 290 NT8D02 Digital Line Card Figure 56 Digital line card—faceplate Card lock latch Dgtl NT8D02 Rlse 04 Card lock latch 553-6160 553-3001-105 Standard 5.00 June 1999...
Page 225: Functional Description
(TN) in the system database, giving a total of 32 addressable units per card. The digital line card supports Nortel Networks’ Meridian Digital Telephone. Figure 57 shows a block diagram of the major functions contained on the digital line card.
Page 226 Page 202 of 290 NT8D02 Digital Line Card Figure 57 Digital line card—block diagram Line interface units 0–7 +10 V dc DS-30X loop Tx PCM Rx PCM Digital line interface 5.12 MHz clock 1 kHz frame sync loop Digital Ring interface phone lines circuit...
Page 227: Card Interfaces
PCM voice, data, and signaling information as time compression multiplexed (TCM) loops. Each TCM loop can be connected to a Nortel Networks M2xxx, M3000, or Aries digital telephone set. The purpose of each digital line interface circuit is to demultiplex data from...
Page 228: Card Control Functions
Page 204 of 290 NT8D02 Digital Line Card To prevent undesirable side effects from occurring when the TCM loop interface cannot provide the proper signals on the digital phone line, the card microcontroller can remove the ±15 V dc power supply from the TCM loop interfaces.
Page 229: Circuit Power
NT8D02 Digital Line Card Page 205 of 290 The microcontroller also controls the front panel LED when the card is enabled or disabled by instructions from the NT8D01 controller card. Card LAN interface Maintenance data is exchanged with the common equipment CPU over a dedicated asynchronous serial network called the Card LAN link.
Page 230: Electrical Specifications
Page 206 of 290 NT8D02 Digital Line Card Electrical specifications This section lists the electrical characteristic of the digital line card. Digital line interface specifications Table 51 provides specifications for the 16 digital line interfaces, and Table 52 lists the maximum power consumed by the card. Table 51 Digital line card—line interface unit electrical characteristics Characteristics...
Page 231: Power Requirements
NT8D02 Digital Line Card Page 207 of 290 Power requirements The digital line card provides +15 V dc over each loop at a maximum current of 80 mA. It requires +15 V, -15 V, and +5 V from the backplane. One NT8D06 Peripheral Equipment Power Supply AC or NT6D40 Peripheral Equipment Power Supply DC can supply power to a maximum of 16 digital line cards.
Page 232: Environmental Specifications
Page 208 of 290 NT8D02 Digital Line Card Environmental specifications Table 53 shows the environmental specifications of the card. Table 53 Digital line card—environmental specifications Parameter Specifications Operating temperature 0° to +60° C (+32 to +140° F), ambient Operating humidity 5 to 95% RH (non-condensing) Storage temperature –40°...
Page 233 NT8D02 Digital Line Card Page 209 of 290 Figure 58 Digital line card—typical cross connection example Meridian 1 Cross-connect Digital telephone NT8D37 connections IPE Module Module I/O Panel NT8D02 Connector Slot 0 Digital Line Card (W-BL) (BL-W) Ring Unit 0 (W-O) (O-W) Ring...
Page 234 Page 210 of 290 NT8D02 Digital Line Card Table 54 Digital line card—backplane pinouts Backplane Lead Backplane Lead Pinout* Designations Pinout* Designations Line 0, Ring Line 0, Tip Line 1, Ring Line 1, Tip Line 2, Ring Line 2, Tip Line 3, Ring Line 3, Tip Line 4, Ring...
Page 235: Configuration
NT8D02 Digital Line Card Page 211 of 290 Configuration This section outlines the procedures for configuring the switches and jumpers on the NT8D02 Digital Line Card and configuring the system software to properly recognize the card. Figure 59 shows where the switches and jumper blocks are located on this board.
Page 236 Page 212 of 290 NT8D02 Digital Line Card Figure 59 Digital line card—jumper block and switch locations. 553-6161 553-3001-105 Standard 5.00 June 1999...
Page 237: Nt8D09 Analog Message Waiting Line Card
Page 213 of 290 NT8D09 Analog Message Waiting Line Card Introduction The NT8D09 Analog Message Waiting Line Card is an intelligent peripheral equipment (IPE) line card that can be installed in either the NT8D37 IPE module (up to 16 cards) or the NT8D11 CE/PE Module (up to 10 cards). The analog message waiting line card provides talk battery and signaling for up to 16 regular 2-wire common battery 500-type (rotary dial) and 2500-type (digitone dial) telephones and key telephone equipment.
Page 238: Physical Description
Page 214 of 290 NT8D09 Analog Message Waiting Line Card Physical description The analog message waiting line card mounts in any IPE slot. The circuitry is mounted on a 31.75 cm. by 25.40 cm (12.5 in. by 10 in.) printed circuit board. The analog message waiting line card connects to the backplane through a 160-pin edge connector.
Page 239 NT8D09 Analog Message Waiting Line Card Page 215 of 290 Figure 60 Analog message waiting line card—faceplate Card lock latch Anlg M/WL C NT8D09 Rlse 0x Card lock latch 553-6165 Line cards Description...
Page 240: Functional Description
Page 216 of 290 NT8D09 Analog Message Waiting Line Card Functional description Figure 61 shows a block diagram of the major functions contained on the analog message waiting line card. Each of these functions are described in the following sections. Card interfaces The analog message waiting line card passes voice and signaling data over DS-30X loops and maintenance data over the card LAN link.
Page 241 NT8D09 Analog Message Waiting Line Card Page 217 of 290 Figure 61 Analog message waiting line card—block diagram Line interface units 0–3 Codec Analog XFMR hybrid Signaling relays Analog (ringing, battery telephone Ring reversal) lines Loop current/ dialpulse detect Message waiting Line interface units 4–7 Codec...
Page 242: Card Control Functions
Page 218 of 290 NT8D09 Analog Message Waiting Line Card Card control functions Control functions are provided by a microcontroller, a card LAN interface, and signaling and control circuits on the analog message waiting line card. Microcontroller The analog message waiting line card contains a microcontroller that controls the internal operation of the card and the serial card LAN link to the controller card.
Page 243: Circuit Power
NT8D09 Analog Message Waiting Line Card Page 219 of 290 Signaling and control The signaling and control portion of the card provides circuits that establish, supervise, and take down call connections. These circuits work with the system CPU to operate the line interface circuits during calls. The circuits receive outgoing call signaling messages from the CPU and return incoming call status information over the DS-30X network loop.
Page 244: Electrical Specifications
Page 220 of 290 NT8D09 Analog Message Waiting Line Card Electrical specifications This section lists the electrical characteristics of the analog message waiting line card. Analog line interface The NT8D09 Analog Message Waiting Line Card meets the EIA/TA464 standard for ONS Type II line cards. Table 55 shows a summary of the analog line interface unit electrical characteristics.
Page 245 NT8D09 Analog Message Waiting Line Card Page 221 of 290 Input impedance The impedance at tip and ring is 600 ohms with a return loss of — 20 dB for 200-500 Hz — 26 dB for 500-3400 Hz Frequency response The loss values in Table 56 are measured relative to the loss at 1 kHz.
Page 246: Power Requirements
Page 222 of 290 NT8D09 Analog Message Waiting Line Card Power requirements Table 57 provides the power requirements for the analog message waiting line card. Table 57 Analog message waiting line card—power requirements Voltage Idle Active Tolerance Maximum (+/–) current current +12.0 V dc 0.36 V dc...
Page 247: Foreign And Surge Voltage Protections
NT8D09 Analog Message Waiting Line Card Page 223 of 290 Foreign and surge voltage protections In-circuit protection against power line crosses or lightning is not provided on the analog message waiting line card. When the card is used to service off-premise telephones, primary and secondary MDF protection must be installed.
Page 248: Connector Pin Assignments
Page 224 of 290 NT8D09 Analog Message Waiting Line Card Connector pin assignments The analog message waiting line card brings the 16 phone lines to the IPE backplane through a 160-pin connector shroud. The backplane is cabled to the input/output (I/O) panel on the rear of the module, which is then connected to the main distribution frame (MDF) by 25-pair cables.
Page 249 NT8D09 Analog Message Waiting Line Card Page 225 of 290 Figure 62 Analog message waiting line card—typical cross connection example IPE Module with messag Module waiting lamp NT8D09 I/O Panel Message Connector Slot 0 Waiting Line Card (W-BL) Ring (BL-W) Unit 0 (W-O) (O-W)
Page 250 Page 226 of 290 NT8D09 Analog Message Waiting Line Card Table 59 Analog message waiting line card—backplane pinouts Backplane Lead Backplane Lead pinout* designations pinout* designations Line 0, Ring Line 0, Tip Line 1, Ring Line 1, Tip Line 2, Ring Line 2, Tip Line 3, Ring Line 3, Tip...
Page 251: Configuration
NT8D09 Analog Message Waiting Line Card Page 227 of 290 Configuration This section outlines the procedures for configuring the switches and jumpers on the NT8D09 Analog Message Waiting Line Card and configuring the system software to properly recognize the card. Figure 63 shows where the switches and jumper blocks are located on this board.
Page 252 Page 228 of 290 NT8D09 Analog Message Waiting Line Card Figure 63 Analog message waiting line card—jumper block and switch locations 553-6166 553-3001-105 Standard 5.00 June 1999...
Page 253: Qpc192 Off-Premise Extension (Opx) Analog Line Card
Page 229 of 290 QPC192 Off-Premise Extension (OPX) Analog Line Card Introduction The QPC192 Off-Premise Extension (OPX) Analog Line Card is a peripheral equipment (PE) device that may be installed in any peripheral shelf or NT8D13 Peripheral Equipment (PE) Module. Figure 64 shows the QPC192 card faceplate.
Page 254 Page 230 of 290 QPC192 Off-Premise Extension (OPX) Analog Line Card Figure 64 OPX analog line card—faceplate Card lock latch 500LCSP QPC192 Card lock latch 553-6170 553-3001-105 Standard 5.00 June 1999...
Page 255: Functional Description
QPC192 Off-Premise Extension (OPX) Analog Line Card Page 231 of 290 Functional description Figure 65 shows a block diagram of the major functions contained on the Off-Premise Extension (OPX) Analog Line Card. Each of these functions are described on the following pages. Figure 65 OPX analog line card—block diagram Network...
Page 256: Codecs
Page 232 of 290 QPC192 Off-Premise Extension (OPX) Analog Line Card Relays are provided in each unit to apply ringing onto the line, and the timing of the application of ringing current is controlled to prevent switching during current peaks. Signal detection circuits monitor on hook/off hook signaling. Codecs Each line interface unit contains a filter and a coder/decoder (codec).
Page 257: Electrical Specifications
QPC192 Off-Premise Extension (OPX) Analog Line Card Page 233 of 290 Electrical specifications This section lists the electrical characteristics of the OPX analog line card. Analog line interface Table 62 shows the electrical characteristics of the analog line interface. Table 62 OPX analog line card—line interface unit electrical characteristics Characteristic Specification...
Page 258: Power Requirements
Page 234 of 290 QPC192 Off-Premise Extension (OPX) Analog Line Card Power requirements Table 63 shows the maximum current that the QPC192 OPX line card requires from each power supply. Table 63 OPX analog line card—power requirements Voltage Idle current (mA) Active current (mA) 2.5 V, ±0.5% <...
Page 259: Foreign And Surge Voltage Protections
QPC192 Off-Premise Extension (OPX) Analog Line Card Page 235 of 290 Foreign and surge voltage protections In-circuit protection against power line crosses or lightning is not provided on the OPX line card earlier than vintage QPC192C. When a card earlier than vintage C is used to service off-premise telephones, primary and secondary MDF protection must be installed.
Page 260: Connector Pin Assignments
Page 236 of 290 QPC192 Off-Premise Extension (OPX) Analog Line Card Connector pin assignments The OPX analog line card brings the four analog phone lines to the PE backplane through an 80-pin bus. In a PE shelf, the bus lines feed into seven multi-pin connectors that link the line cards to the main distribution frame (MDF), also called the cross-connect terminal.
Page 261 QPC192 Off-Premise Extension (OPX) Analog Line Card Page 237 of 290 Figure 66 OPX analog line card—typical cross connection example Meridian 1 Cross-connect OPS or ONS telephone connections NT8D13 PE Module Module I/O Panel QPC192 Connector Slot 0 Line Card (W-BL) (BL-W) Ring...
Page 262: Configuration
Page 238 of 290 QPC192 Off-Premise Extension (OPX) Analog Line Card Configuration This section outlines the procedures for configuring the switches and jumpers on the QPC192 Off-Premise Extension Analog Line Card and configuring the system software to properly recognize and configure the OPX line card. Figure 67 shows the location of the jumper blocks on this board.
Page 263 QPC192 Off-Premise Extension (OPX) Analog Line Card Page 239 of 290 Figure 67 OPX analog line card—jumper block locations 553-6171 Line cards Description...
Page 264 Page 240 of 290 QPC192 Off-Premise Extension (OPX) Analog Line Card 553-3001-105 Standard 5.00 June 1999...
Page 265: Qpc452 Basic 500/2500 Analog Line Card
Page 241 of 290 QPC452 Basic 500/2500 Analog Line Card Introduction The QPC452 Basic 500/2500 Analog Line Card is a peripheral equipment (PE) device that may be installed in any peripheral shelf or NT8D13 Peripheral Equipment (PE) Module. The basic 500/2500 analog line card interfaces eight analog telephone lines to the Meridian 1 switch.
Page 266 Page 242 of 290 QPC452 Basic 500/2500 Analog Line Card Figure 68 Basic 500/2500 analog line card—faceplate Card lock latch 500 LC Card lock latch 553-6175 553-3001-105 Standard 5.00 June 1999...
Page 267: Functional Description
QPC452 Basic 500/2500 Analog Line Card Page 243 of 290 Functional description Figure 69 shows a block diagram of the major functions contained on the basic 500/2500 analog line card. Each of these functions are described on the following pages. Figure 69 Basic 500/2500 analog line card—block diagram Network...
Page 268: Line Interface Units
Page 244 of 290 QPC452 Basic 500/2500 Analog Line Card Line interface units The basic 500/2500 analog line card contains eight identical and individually configurable line interface units (also referred to as circuits). Each unit provides 600 ohm impedance matching and a balancing network in a signal transformer/analog hybrid circuit.
Page 269: Electrical Specifications
QPC452 Basic 500/2500 Analog Line Card Page 245 of 290 Electrical specifications This section lists the electrical characteristics of the basic 500/2500 analog line card. Analog line interface Table 66 shows the electrical characteristics of the analog line interface. Table 67 shows the maximum number of voice call recommended as the loop resistance changes.
Page 270: Power Requirements
Page 246 of 290 QPC452 Basic 500/2500 Analog Line Card Table 67 Basic 500/2500 analog line card—maximum number of voice calls recommended Loop Resistance (Ohms)* 17 mA** 20 mA up to 40 41 to 100 101 to 250 251 to 1000 Loop resistance excludes the impedance of the telephone.
Page 271: Foreign And Surge Voltage Protections
QPC452 Basic 500/2500 Analog Line Card Page 247 of 290 Foreign and surge voltage protections When telephone lines connected to the 500/2500 line cards may be exposed to foreign voltages by direct contact or induction (power line crosses or lightning, for example), protection devices must be installed on the customer’s premises.
Page 272: Connector Pin Assignments
Page 248 of 290 QPC452 Basic 500/2500 Analog Line Card Connector pin assignments The basic 500/2500 analog line card brings the eight analog phone lines to the PE backplane through an 80-pin bus. In a PE shelf, the bus lines feed into seven multi-pin connectors that link the line cards to the main distribution frame (MDF), also called the cross-connect terminal.
Page 273 QPC452 Basic 500/2500 Analog Line Card Page 249 of 290 Figure 70 Basic 500/2500 analog line card—typical cross connection example Meridian 1 Cross-connect On-premise telephone NT8D13 connections PE Module Module QPC452 I/O Panel Basic Connector Slot 0 500/2500 Line Card (W-BL) (BL-W) Ring...
Page 274: Configuration
Page 250 of 290 QPC452 Basic 500/2500 Analog Line Card Configuration This sections outlines the procedures for configuring the switches and jumpers on the QPC452 Basic 500/2500 Analog Line Card and configuring the system software to properly recognize and configure the basic 500/2500 line card.
Page 275 QPC452 Basic 500/2500 Analog Line Card Page 251 of 290 Figure 71 Basic 500/2500 analog line card—jumper block locations 553-6176 Line cards Description...
Page 276 Page 252 of 290 QPC452 Basic 500/2500 Analog Line Card 553-3001-105 Standard 5.00 June 1999...
Page 277: Qpc578 Integrated Services Digital Line Card
Page 253 of 290 QPC578 Integrated Services Digital Line Card Introduction The QPC578 Integrated Services Digital Line Card is a peripheral equipment (PE) device that may be installed in any peripheral shelf or NT8D13 Peripheral Equipment (PE) Module. The ISDLC interfaces eight digital telephone lines to the Meridian 1 switch.
Page 278: Physical Description
Page 254 of 290 QPC578 Integrated Services Digital Line Card Physical description The ISDLC circuitry is contained on a 31.75 cm by 25.40 cm (12.5 in. by 10 in.) printed circuit board. The faceplate of the card (see Figure 72) is equipped with a red light emitting diode (LED) that lights only when the card is disabled.
Page 279 QPC578 Integrated Services Digital Line Card Page 255 of 290 Figure 72 Integrated services digital line card—faceplate Card lock latch ISDLC QPC578 Card lock latch 553-6180 Line cards Description...
Page 280: Functional Description
Page 256 of 290 QPC578 Integrated Services Digital Line Card Functional description Figure 73 shows a block diagram of the major functions contained on the integrated services digital line card. Each of these functions are described on the following pages. Figure 73 Integrated services digital line card—block diagram Ring...
Page 281: Card Interfaces
QPC578 Integrated Services Digital Line Card Page 257 of 290 Card interfaces The integrated services digital line card passes voice, data, and signaling over network loops. This interface is discussed in detail in “Peripheral equipment” on page 6. Line interface units The QPC578 ISDLC is equipped with eight identical line interface units.
Page 282: Electrical Specifications
Page 258 of 290 QPC578 Integrated Services Digital Line Card Electrical specifications This section lists the electrical characteristics of the integrated services digital line card. Line interface unit specifications Table 71 provides a technical summary of the ISDLC line interface. Table 71 Integrated services digital line card—line interface technical summary Characteristics...
Page 283: Power Requirements
QPC578 Integrated Services Digital Line Card Page 259 of 290 Power requirements Table 72 shows the maximum power consumed by the QPC578 Integrated Digital Services Line Card. The ISDLC provides +30 V dc over each loop at a maximum current of 60 mA. The line feed interface can supply power to loops of up to 1067 m (3500 ft) in length using 22 or 24 AWG wire;...
Page 284: Environmental Specifications
Page 260 of 290 QPC578 Integrated Services Digital Line Card Environmental specifications Table 73 shows the environmental specifications of the card. Table 73 Integrated services digital line card—environmental specifications Parameter Specifications Operating temperature 0° to +60° C (+32 to +140° F), ambient Operating humidity 5 to 95% RH (noncondensing) Storage temperature...
Page 285: Connector Pin Assignments
QPC578 Integrated Services Digital Line Card Page 261 of 290 Connector pin assignments The ISD line card brings the four analog phone lines to the PE backplane through an 80-pin bus. In a PE shelf, the bus lines feed into seven multi-pin connectors that link the line cards to the main distribution frame (MDF), also called the cross-connect terminal.
Page 286 Page 262 of 290 QPC578 Integrated Services Digital Line Card Figure 74 Integrated services digital line card—typical connection example Meridian 1 Cross-connect Digital telephone sets NT8D13 and terminals or PE Module personal computers Module QPC578 I/O Panel Connector Slot 0 Terminal Digital digital...
Page 287: Configuration
QPC578 Integrated Services Digital Line Card Page 263 of 290 Configuration This sections outlines the procedures for configuring the switches and jumpers on the QPC578 Integrated Services Digital Line Card and configuring the system software to properly recognize and configure the ISD line card.
Page 288 Page 264 of 290 QPC578 Integrated Services Digital Line Card Figure 75 Integrated services digital line card—jumper block locations 553-6181 553-3001-105 Standard 5.00 June 1999...
Page 289: Qpc789 16-Port Message Waiting Analog Line Card
Page 265 of 290 QPC789 16-port Message Waiting Analog Line Card Introduction The QPC789 16-port Message Waiting Analog Line Card is a peripheral equipment (PE) device that may be installed in any peripheral shelf or NT8D13 Peripheral Equipment (PE) Module. The message waiting analog line card interfaces 16 analog telephone lines with a high-voltage, low-current voltage for the message waiting light to the Meridian 1 switch.
Page 290 Page 266 of 290 QPC789 16-port Message Waiting Analog Line Card Figure 76 16-port message waiting analog line card—faceplate Card lock latch QDMW Ln Cd QPC789 Card lock latch 553-6185 553-3001-105 Standard 5.00 June 1999...
Page 291: Functional Description
QPC789 16-port Message Waiting Analog Line Card Page 267 of 290 Functional description Figure 77 shows a block diagram of the major functions contained on the16-port message waiting analog line card. Each of these functions are described on the following pages. Figure 77 16-port message waiting analog line card—block diagram Network...
Page 292: Card Interfaces
Page 268 of 290 QPC789 16-port Message Waiting Analog Line Card Card interfaces The 16-port message waiting analog line card passes voice and signaling data over network loops. This interface is discussed in detail in “Peripheral equipment” on page 6. Subscriber line interface circuits Each of the 16 lines on the card contains a hybrid subscriber line interface circuit (SLIC) that terminates the loop tip and ring conductors with a balanced...
Page 293: Codecs
QPC789 16-port Message Waiting Analog Line Card Page 269 of 290 Codecs Each SLIC also contains a filter and a coder/decoder (codec). Audio signals received from the telephone line are passed through a low-pass monolithic A/D filter that limits the frequency spread of the input signal to a nominal 200–3400 Hz bandwidth.
Page 294: Electrical Specifications
Page 270 of 290 QPC789 16-port Message Waiting Analog Line Card Electrical specifications This section lists the electrical characteristics of the 16-port message waiting analog line card. Analog line interface Table 75 shows the electrical characteristics of the analog line interface, and Table 76 shows the maximum number of ringers per directory number (DN) loop.
Page 295: Power Requirements
QPC789 16-port Message Waiting Analog Line Card Page 271 of 290 Table 76 16-port message waiting analog line card—maximum number of ringers per directory number loop Maximum number of ringers Loop resistance (NE-C4A or equivalent) 1000 ohms 850 ohms 600 ohms 350 ohms Power requirements Table 77 shows the maximum current that the QPC789 16-port Message...
Page 296: Foreign And Surge Voltage Protections
Page 272 of 290 QPC789 16-port Message Waiting Analog Line Card Foreign and surge voltage protections When telephone lines connected to the 16-port message waiting line cards may be exposed to foreign voltages by direct contact or induction (power line crosses or lightning, for example), protection devices must be installed on the customer’s premises.
Page 297: Connector Pin Assignments
QPC789 16-port Message Waiting Analog Line Card Page 273 of 290 Connector pin assignments The 16-port message waiting analog line card brings the 16 analog phone lines to the PE backplane through an 80-pin connector to connect to the system 80-pin bus. In a PE shelf, the bus lines feed into seven multi-pin connectors that link the line cards to the main distribution frame (MDF), also called the cross-connect terminal.
Page 298 Page 274 of 290 QPC789 16-port Message Waiting Analog Line Card Figure 78 16-port message waiting analog line card—typical cross connection example Meridian 1 Cross-connect Telephone sets with message NT8D13 waiting light PE Module Module QPC789 I/O Panel Message Connector Slot 0 Waiting Line Card...
Page 299 QPC789 16-port Message Waiting Analog Line Card Page 275 of 290 Table 79 16-port message waiting analog line card—backplane connections Signal Signal Line 0, Tip Line 0, Ring Line 1, Tip Line 1, Ring Line 2, Tip Line 2, Ring Line 3, Tip Line 3, Ring Line 4, Tip...
Page 300: Configuration
Page 276 of 290 QPC789 16-port Message Waiting Analog Line Card Configuration This sections outlines the procedures for configuring the switches and jumpers on the QPC789 16-port Message Waiting Analog Line Card and configuring the system software to properly recognize and configure the message waiting analog line card.
Page 301 QPC789 16-port Message Waiting Analog Line Card Page 277 of 290 Figure 79 16-port message waiting analog line card—jumper block locations 553-6186 Line cards Description...
Page 302 Page 278 of 290 QPC789 16-port Message Waiting Analog Line Card 553-3001-105 Standard 5.00 June 1999...
Page 303: List Of Terms
Page 279 of 290 List of terms BIMP Balance Impedance CE/PE Common equipment and peripheral equipment module CCITT International Telegraph and Telephone Consultive Committee Caller Identification Class of service Central office Class of service Central processor unit DTMF Dual-tone multi-frequency Inserted connection loss Line cards Description...
Page 304 Page 280 of 290 List of terms Intelligent peripheral equipment Local area network Light emitting diode Main Distribution Frame On-premise class of service On-premises set (station) Off-premises set (station) Off-premise class of service Private branch exchange Pulse code modulation PSTN Public Switched Telephone Network Peripheral equipment Public switched network...
Page 305 List of terms Page 281 of 290 PSTN Public switched telephone network Ringer equivalence numbers Relative humidity Rsync Ring synchronization Time compression multiplexed TIMP Termination impedance Terminal number WATS Wide-Area Transmission Service Line cards Description...
Page 306 Page 282 of 290 List of terms 553-3001-105 Standard 5.00 June 1999...
Page 307 Index Symbols µ-Law companding support 30, 213 cabling for line cards 14 Numerics NT1R20 Off-Premise Station (OPS) Analog Line Card 53, 68 500/2500 telephones NT8D02 Digital Line Card 208 line card for 10, 213 NT8D09 Analog Message Waiting Line Card...
Page 308 Page 284 of 290 codecs (Coder/Decoder) 23, 26, 29, 30, 56 DS-30Y network loops 17, 21 NT1R20 Off-Premise Station (OPS) Analog Line Card 57 NT8D09 Analog Message Waiting Line Card electrical specifications 216, 217 NT1R20 Off-Premise Station (OPS) Analog QPC192 Off-Premise Extension (OPX)
Page 309 Page 285 of 290 impedance 10, 30, 34 key systems NT1R20 Off-Premise Station (OPS) Analog line cards for 8, 9, 10 Line Card 57, 60, 65, 66 NT8D02 Digital Line Card 206 NT8D09 Analog Message Waiting Line Card LD 10 for configuring interface units 14, 65, 227,...
Page 310 Line Card 269 245, 246 QPC578 Integrated Services Digital Line Card (ISDLC) 258 network equipment circuit cards 4 NT1R20 Off-Premise Station (OPS) Analog Line Card MDF (main distribution frame) analog line electrical characteristics 60 connecting line cards 14 applications 69, 70...
Page 311 Page 287 of 290 NT5D60AA CLASS Modem card NT8D09 Analog Message Waiting Line Card configuration configuration software service changes 198 jumper and switch settings 227, 228 electrical characteristics 197 software service changes 227 functions 194 connector pin assignments 224, 225, 226 power requirements 197 description 7, 9, 213, 214 NT8D01 Controller Card 17...
Page 312 238 network connections 17 software service changes 238 port-to-port loss connector pin assignments 236, 237 NT1R20 Off-Premise Station (OPS) Analog description 7, 10, 49, 51, 229 Line Card 68, 71 electrical specifications 233 NT8D09 Analog Message Waiting Line Card...
Page 313 QPC659 Dual-Loop Peripheral Buffer Card 17, 23 self-tests by IPE line cards 22 QPC789 16-port Message Waiting Analog Line self-tests by NT1R20 OPS card 54 Card timeslots 20, 24, 26, 27 configuration tip and ring facilities 9, 19, 26, 34...
Page 314 Page 290 of 290 553-3001-105 Standard 5.00 June 1999...
Page 316 Line cards Description © 1994, 1999 Nortel Networks Corporation All rights reserved Information is subject to change without notice. Nortel Networks Corpration reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant. This...

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Nortel NT1R20 Description

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About this Document

NT1R20 Off-Premise Station Analog Line Card

NT5D11 Line-Side T1 Interface Card

NT5D60AA CLASS Modem Card (XCMC)

NT8D02 Digital Line Card

NT8D09 Analog Message Waiting Line Card

QPC192 Off-Premise Extension (OPX) Analog Line Card

QPC452 Basic 500/2500 Analog Line Card

QPC578 Integrated Services Digital Line Card

QPC789 16-Port Message Waiting Analog Line Card

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