Page 1 Meridian 1 ISDN Primary Rate Interface Installation Document Number: 553-2901-200 Document Release: Standard 11.00 Date: August 1996 Year Publish FCC TM © 1989, 1996 All rights reserved Printed in the United States of America Information is subject to change without notice. Northern Telecom reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.
Page 2 Revision history August 1996 Issue 11.00 released as Standard for Generic X11 Release 22. December 1995 Issue 10.00 released as Standard for Generic X11 Release 21B. July 1995 Issue 9.00 released as Standard for Generic X11 Release 21A. December 1994 Standard, Release 8.00.
Page 3: Table Of Contents
Interface to PRI ........QPC757/NT6D80 faceplate .......
Page 4 Contents Reference clock errors ........Automatic clock recovery ....... . Automatic clock switching .
Page 5 DCHI installation for all systems ....Installing the QPC757 DCHI ......
Page 6 viii Contents Cabling diagrams ........Clocking .
Page 7 Contents Dedicated mode using PRI/DTI trunks ..... . ISL installation ......... . . ISL dedicated mode (digital and analog) .
Page 8 QPC720 PRI faceplate layout ....... Figure 3 QPC757 DCHI faceplate layout ......Figure 4 NT6D80 MSDL faceplate layout .
Page 9 Option switch settings for PRI circuit card ..... Figure 24 QPC757 option and PRI/ISL high speed programming switch settings Figure 25...
Page 10 List of figures xiii Figure 30 - DDP cabling for Meridian SL-1 systems without an I/O panel Figure 31 - Clock Controller primary and secondary tracking ..Figure 32 - Clock Controller - Option 1 ......Figure 33 - Clock Controller - Option 2 .
Page 11: List Of Tables
List of tables Table 1 Minimum ROM requirements by machine type and X11 release ..Table 2 QPC720 PRI: external connectors ......Table 3 QPC720 PRI: cables and cable lengths .
Page 12: Table
List of tables Table 13 Cable connections and destinations for NT, 51/51C, 61/61C ..Table 14 Shelf and slot location of QPC720 in XN, XT, and option 71 ..Table 15 Transmission equalization switch settings for PRI .
Page 13 List of tables xvii Table 31- NT5D17AA cable pins ......Table 32 - Clock Controller options- summary ....Table 33 - Clock Controller options - description .
Page 14: Introduction
PRI equipment overview QPC757 DCHI NT6D80 MSDL QPC720 PRI Clock Operation DCHI installation All Meridian 1 systems Installing the QPC757 DCHI Removing the QPC757 DCHI MSDL installation All Meridian 1 systems Installing the NT6D80 MSDL Removing the NT6D80 MSDL ISDN PRI...
Page 15 Page 2 of 188 Introduction PRI installation The ST/STE and system option 21/21E Installing the QPC720 PRI Removing the QPC720 PRI Installing the QPC720 PRI Removing the QPC720 PRI NT, and system options 51/51C and 61/61C Installing the QPC720 PRI Removing the QPC720 PRI Installing an additional network shelf XT, and system option 71...
Page 16: References
Introduction Page 3 of 188 PRI wire list Nonstandard cables QCAD128 QCAD129 QCAD133 QCAD328 NTNT26 (X11 release 18 and later) NTND27 (X11 release 18 and later) NTND98 (X11 release 18 and later) References Refer to the following documents for additional information. —...
Page 17: Note To Installers
Table 50, “Card slot positions for ST, STE, RT, NT, XT,” on page 180 illustrate acceptable positions for the QPC720, QPC414, QPC741, QPC775, QPC757, and NT6D80 cards. Use this chart to determine where you are placing your cards before you actually begin your installation.
Page 18: Primary Rate Interface Equipment: Overview
— Beginning with X11 release 21, system options 51C, 71C, and 81C This document describes the equipment and procedures needed to install the following ISDN PRI hardware on Meridian 1 systems. — QPC757 D-channel Interface (DCHI) — NT6D80 Multi-purpose Serial Data Link (MSDL) — QPC720 Primary Rate Interface (PRI) —...
Page 19 Page 6 of 188 Primary Rate Interface equipment: overview — QPC471 or QPC775 Clock Controller The QPC775 Clock Controller is currently not available for U.S. markets. The QPC471 and QPC775 Clock Controllers cannot be mixed in one system. Vintages A through G of the QPC471 Clock Controller can be used in one system;...
Page 20: Pri Hardware
Primary Rate Interface equipment: overview Page 7 of 188 Figure 1 PRI hardware Clock Controller QPC471 or QPC775 QPC720 QPC720 REF2 REF1 T1 interface to external digital carrier Loop Network card QPC414 DCHI QPC757 MSDL NT6D80 553-1369 ISDN PRI Installation...
Page 21: Minimum Rom Requirements By Machine Type And X11 Release
(553-2901-100) for hardware vintage requirements and compatibilities, as well as packaging information. Note: Either the QPC757 DCHI, the NT6D80 MSDL, or the QPC720 PRI can be installed first. However, PRI loops must be configured in software before defining DCHI links.
Page 22: Isdn Signaling Link Hardware
Primary Rate Interface equipment: overview Page 9 of 188 ISDN Signaling Link hardware Equipment required for shared mode. — QPC757 DCHI or NT6D80 MSDL — QPC720 PRI — QPC471 or QPC775 Clock Controller A Clock Controller is not needed for analog applications. Both QPC471 and QPC775 Clock Controllers cannot be in one system.
Page 23: Qpc720 Pri
Page 10 of 188 Primary Rate Interface equipment: overview The following equipment is recommended for modem connections: Hayes Smartmodem 2400 Concord Data System CDS 224 Trispeed Series II Anderson Jacobson AJ 2441-1 Racal-Vadic 2400 PA QPC720 PRI The QPC720 PRI card is required for PRI operation in all machine types. Power requirements The QPC720 PRI uses power and ground from the backplane.
Page 24: Qpc720 Faceplate
Primary Rate Interface equipment: overview Page 11 of 188 QPC720 faceplate Table 2 gives information about the external connectors located on the QPC720 PRI faceplate. The QPC720 PRI contains five LEDs and six external connectors. Figure 2 shows the faceplate layout. Table 2 QPC720 PRI: external connectors Faceplate destination...
Page 25: Qpc720 Pri Faceplate Layout
Recovered reference clocks derived from and received (RCV) DS-1 signal T1 interface to the external digital carrier D-channel interface DCHI cable connection to QPC757 or MSDL card Network loop cable connector to QPC414 Network Card RS-232 interface to echo canceller (satellite...
Page 26: Carrier Interface
Primary Rate Interface equipment: overview Page 13 of 188 Carrier interface The QPC720 PRI provides an interface to the DS-1 Channel either directly, through an office repeater, or through an Echo Canceller. The T1 Channel Service Units listed below are compatible with the QPC720 PRI card and the 64K Clear Data feature as well as with PRI connection parameters such as the Superframe format, the Extended superframe format, and the B7 and B8ZS Alternate Mark Inversion (AMI) line coding.
Page 27: 64 T-Link Version 2 Protocol
Cable type From length length (feet) (meters) QCAD130 QPC720 QPC471/QPC775 (CC-0) 2.13 QCAD130 QPC720 QPC471/QPC775 (CC-1) 2.13 QCAD328A QPC720 QPC757 DCHI QCAD328B QPC720 QPC757 DCHI QCAD328C QPC720 QPC757 DCHI 10.67 QCAD328D QPC720 QPC757 DCHI 15.24 QCAD124 QPC720 QPC414 Network 15.24...
Page 28: Qpc757 Dchi/Nt6D80 Msdl
Note: The QPC775 Clock Controller is currently available in Canada only. There can be no mixing of QPC775 and QPC471 in one system. QPC757 DCHI/NT6D80 MSDL The QPC757 DCHI or NT6D80 MSDL card is required in all machine types. Power requirements The QPC757 DCHI/NT6D80 MSDL power requirements...
Page 29 Note: X11 release 14 requires QPC757 vintage B or higher. A QPC757 vintage C is required if the ISL Revert to Conventional Signaling feature is configured. X11 release 15 requires a QPC757 vintage C or later. The QPC757 vintage D is recommended for combination ISL/PRI networks using NACD or Network Message Services and ISL networks using modems.
Page 30: Qpc757 Dchi Faceplate Layout
Primary Rate Interface equipment: overview Page 17 of 188 Figure 3 QPC757 DCHI faceplate layout Status LED The DCHI LED indicates the status of both ports on the DCHI card. If both ports are configured, the LED is lit only when both ports are disabled.
Page 31: Nt6D80 Msdl
Primary Rate Interface equipment: overview NT6D80 MSDL The NT6D80 MSDL card can be used in all machines supporting X11 release 18. It can be used in conjunction with, or independently from, the QPC757 card. Power requirements The NT6D80 MSDL power requirements are Voltage (VAC)
Page 32: Figure 4
Primary Rate Interface equipment: overview Page 19 of 188 Figure 4 NT6D80 MSDL faceplate layout LED Indicator I/O Port 0 I/O Port 1 I/O Port 2 I/O Port 3 Monitor Port REL XX NT6D80AA 553-5438 ISDN PRI Installation...
Page 33: Clock Operation
Page 20 of 188 Primary Rate Interface equipment: overview Clock operation There are three types of clock operation: tracking mode, free run mode, and holdover mode. Tracking mode In tracking mode, the PRI loop supplies an external clock reference to a Clock Controller.
Page 34: Clock Controller Primary And Secondary Tracking
Primary Rate Interface equipment: overview Page 21 of 188 A reference clock error occurs when there is a problem with the clock driver or with the reference system clock at the far end. If the Clock Controller detects a reference clock error, the reference clocks are switched. Figure 5 Clock controller primary and secondary tracking Primary...
Page 35: Automatic Clock Recovery
Page 22 of 188 Primary Rate Interface equipment: overview Automatic clock recovery Automatic clock recovery provides for the clocking devices, down because of a PRI loop problem, to return to operation as soon as the PRI loop recovers. With X11 release 14, you must enable the Auto recovery in LD 60 with the command EREF as well as in LD 70 with AUTO = YES.
Page 36: Dti To Pri Conversion
Change option switch settings on the PRI circuit card as required. Refer to Figure 6 Table If the PRI links the D-channel, connect J5 to QPC757 DCHI J2 with a QCAD328A cable. You can also connect the PRI to an MSDL card with the cables noted in Table 3 (with X11 release 18 and later).
Page 37: Pri Circuit Card (Qpc720) Option Settings
Page 24 of 188 Primary Rate Interface equipment: overview Figure 6 PRI circuit card (QPC720) option settings 7-pole (See transmission equalization switch settings) 8-pole (All OFF except for PRI mode, see transmission equalization switch settings) 553-1503 553-2901-200 Standard 11.00 August 1996...
Page 38: Transmission Equalization Switch Settings For Qpc720 Pri/Dti Mode
Primary Rate Interface equipment: overview Page 25 of 188 Use the same SW2 settings in the table below for transmission equalization with QPC720 in Primary Rate Interface (PRI) mode or Digital Trunk Interface (DTI) mode. Table 4 Transmission equalization switch settings for QPC720 PRI/DTI mode Switch S2 settings To repeated facility To cross-connect point...
Page 39: Pri Installation: St, Ste, 21, 21E
Page 27 of 188 PRI installation: ST, STE, 21, 21E X11 release 18 requires ST and 21 upgrade to STE or 21E. This chapter includes the PRI installation procedure for all four systems. PRI circuit card locations Each PRI circuit card requires two adjacent slots on a shelf. PRI cards can be placed in the following slots: —...
Page 40: Installing The Qpc720 Pri
Page 28 of 188 PRI installation: ST, STE, 21, 21E The recommended order of PRI connections for the Universal I/O Panel (P0715058) for NT8D11 CE/PE Module (system option 21) follows: — with Echo Canceller, J4 and J12 for the T1, J8 for the Echo Canceller —...
Page 41: Transmission Equalization Switch Settings For Pri
PRI installation: ST, STE, 21, 21E Page 29 of 188 Run and connect PRI cables. Figures 7 show ST, STE, 21, 21E PRI cabling. Refer also to Table If required, install connecting blocks at MDF or wall-mounted cross-connect terminal. If required, designate connecting blocks at MDF or wall-mounted cross-connect terminal.
Page 42: Table 7
Page 30 of 188 PRI installation: ST, STE, 21, 21E Table 7 Cable connections and destinations for ST, STE, 21, 21E Cable From Comments QCAD130 QPC720 QPC471/ CC-0 Only when primary clock NT8D79xx QPC775 source. QCAD130 QPC720 QPC471/ CC-0 Only when secondary clock NT8D79xx QPC775 source.
Page 43: Figure 7
QPC720 PRI Card—Secondary Reference PRI Card (Primary reference) QCAD130 or NT8D79xx REF1 QPC471 Clock Controller 0 REF2 No connection QPC757 QCAD328A or NTND26 or NT6D80 D-CH QCAD124 or NT8D85xx QPC414 LOOP Note 3 QCAD128 or QCAD133 or QCAD133 or LD-1...
Page 44: Figure 8
PRI Card—Secondary Reference PRI Card (Primary reference) QCAD130 REF1 QPC471 or NT8D79xx Clock Controller No connection REF2 No connection QPC757 QCAD328A or NTND26 D-CH NT6D80 QCAD124 or NT8D85xx QPC414 LOOP Note 3 22 AWG ABAM QCAD128 or Echo Canceller QCAD133 or...
Page 45: Pri Card (Qpc720) Switch Settings
PRI installation: ST, STE, 21, 21E Page 33 of 188 Figure 9 PRI card (QPC720) switch settings 7-pole (See transmission equalization switch settings) 8-pole (All OFF except for PRI mode, see transmission equalization switch settings) 553-1503 ISDN PRI Installation...
Page 46: Removing The Qpc720 Pri
Page 34 of 188 PRI installation: ST, STE, 21, 21E Removing the QPC720 PRI The following procedure describes how to remove the QPC720 PRI card from the ST, STE, 21, 21E. Procedure 3 Removing the QPC720 PRI from the ST, STE, 21, 21E Disable the D-channel in LD 96.
Page 47: Pri Installation: Rt
Page 35 of 188 PRI installation: RT PRI circuit card locations Each PRI circuit card requires two adjacent slots on a shelf. As many as five circuit cards can be plugged into an empty network shelf, along with the power converter card, depending on the shelf type. See Tables 49 card slot positions.
Page 48: Installing The Qpc720 Pri
Page 36 of 188 PRI installation: RT Installing the QPC720 PRI This procedure describes how to install the QPC720 PRI card in an RT. Procedure 4 Installing the QPC720 PRI in an RT Determine the cabinet and shelf location of the circuit card to be installed.
Page 49: Transmission Equalization Switch Settings For Pri
PRI installation: RT Page 37 of 188 Table 9 Transmission equalization switch settings for PRI Switch S2 settings To repeated facility To cross-connect point 5 on 0–45 m 0–30 m (0–150 ft) (0–100 ft) 2, 4, 6 on 46–135 m 31–100 m (151–450 ft) (101–355 ft)
Page 50: Table 10
Page 38 of 188 PRI installation: RT Table 10 Cable connections and destinations for RT Cable From Comments QCAD130 QPC720 QPC471/ CC-0 Only when primary clock NT8D79xx QPC775 source. QCAD130 QPC720 QPC471/ CC-0 Only when secondary clock NT8D79xx QPC775 source. NTND26 QPC720 MSDL...
Page 51: Figure 10
QPC720 PRI Card—Secondary Reference PRI Card (Primary reference) QCAD130 or NT8D79xx REF1 QPC471 Clock Controller 0 REF2 No connection QPC757 QCAD328A or NTND26 or NT6D80 D-CH QCAD124 or NT8D85xx QPC414 LOOP Note 3 QCAD128 or QCAD133 or QCAD133 or LD-1...
Page 52: Figure 11
PRI Card—Secondary Reference PRI Card (Primary reference) QCAD130 REF1 QPC471 or NT8D79xx Clock Controller No connection REF2 No connection QPC757 QCAD328A or NTND26 D-CH NT6D80 QCAD124 or NT8D85xx QPC414 LOOP Note 3 22 AWG ABAM QCAD128 or Echo Canceller QCAD133 or...
Page 53: Pri Card (Qpc720) Switch Settings
PRI installation: RT Page 41 of 188 Figure 12 PRI card (QPC720) switch settings 7-pole (See transmission equalization switch settings) 8-pole (All OFF except for PRI mode, see transmission equalization switch settings) 553-1503 ISDN PRI Installation...
Page 54: Removing The Qpc720 Pri
Page 42 of 188 PRI installation: RT Removing the QPC720 PRI The following procedure describes how to remove the QPC720 PRI card from the RT. Procedure 5 Removing the QPC720 PRI from the RT Disable the D-channel in LD 96. Disable Network Loop using LD 60.
Page 55: Pri Installation: Nt, 51/51C, 61/61C
Page 43 of 188 PRI installation: NT, 51/51C, 61/61C PRI circuit card locations Each PRI circuit card requires two adjacent slots on a shelf. As many as five circuit cards can be plugged into any empty network shelf, along with the power converter card, depending on the shelf type.
Page 56: Installing The Qpc720 Pri
Page 44 of 188 PRI installation: NT, 51/51C, 61/61C Installing the QPC720 PRI This procedure describes how to install the QPC720 PRI card in an NT, 51/51C, or 61/61C. Procedure 6 Installing the QPC720 PRI in NT, 51/51C, 61/61C Determine the cabinet and shelf location of the circuit card to be installed.
Page 57 PRI installation: NT, 51/51C, 61/61C Page 45 of 188 Unpack and inspect circuit cards. Set option switches on the PRI circuit card. See Figure 17 Table Install PRI circuit card in the assigned shelf and slot. Install network circuit card (if no network loop connection is available). If required, install I/O adapters in I/O panel.
Page 58: Removing The Qpc720 Pri
Page 46 of 188 PRI installation: NT, 51/51C, 61/61C Removing the QPC720 PRI The following procedure describes how to remove the QPC720 PRI card from the NT, 51/51C, 61/61C. Procedure 7 Removing the QPC720 PRI in the NT, 51/51C, 61/61C Disable the D-channel in LD 96.
Page 59: Transmission Equalization Switch Settings For Pri
PRI installation: NT, 51/51C, 61/61C Page 47 of 188 Table 12 Transmission equalization switch settings for PRI Switch S2 settings To repeated facility To cross-connect point 5 ON 0–45 m 0–30 m (0–150 ft) (0–100 ft) 2, 4, 6 ON 46–135 m 31–100 m (151–450 ft)
Page 60: Cable Connections And Destinations For Nt, 51/51C, 61/61C
QPC775 QPC775 QCAD124 QPC720 Network Run directly to network NT8D85xx card. QCAD328A QPC720 QPC757 Run directly to DCHI card. NTND26 QPC720 NT6D80 X11 release 18 and later. QCAD133 I/O Panel Patch panel Run via cabinet I/O panel to CSU, Echo Canceller, or cross-connect terminal.
Page 61: Half Group Cabling Without Echo Canceller
QPC720 PRI Card—Secondary Reference PRI Card (Primary reference) QCAD130 or NT8D79xx REF1 QPC471 Clock Controller 0 REF2 No connection QPC757 QCAD328A or NTND26 or NT6D80 D-CH QCAD124 or NT8D85xx QPC414 LOOP Note 3 QCAD128 or QCAD133 or QCAD133 or LD-1...
Page 62: Half Group Cabling With Echo Canceller
PRI Card—Secondary Reference PRI Card (Primary reference) QCAD130 REF1 QPC471 or NT8D79xx Clock Controller No connection REF2 No connection QPC757 QCAD328A or NTND26 D-CH NT6D80 QCAD124 or NT8D85xx QPC414 LOOP Note 3 22 AWG ABAM QCAD128 or Echo Canceller QCAD133 or...
Page 63: Single Group Cabling Without Echo Canceller (Nt, 61/61C)
QCAD130 to PRI REF1 or NT8D79xx QPC471 Clock Controller REF2 QPC471 QCAD130 to PRI Clock or NT8D79xx Controller QCAD125 or NT8D75xx QPC757 QCAD328A D-Channel NT6D80 NTND26 QCAD124 or QPC414 LOOP Note 3 NT8D85xx QCAD128 QCAD133 QCAD133 or LD-1 Note 2...
Page 64: Single Group Cabling With Echo Canceller (Nt, 61/61C)
QCAD130 to PRI REF1 or NT8D79xx QPC471 Clock Controller QCAD130 to PRI or NT8D79xx REF2 QPC471 Clock Controller QCAD125 or NT8D75xx QPC757 QCAD328A D-CH NT6D80 NTND26 QCAD124 or QPC414 LOOP Note 3 NT8D85xx 22 AWG ABAM QCAD128 Echo Canceller QCAD133...
Page 65: Pri Card (Qpc720) Switch Settings
PRI installation: NT, 51/51C, 61/61C Page 53 of 188 Figure 17 PRI card (QPC720) switch settings 7-pole (See transmission equalization switch settings) 8-pole (All OFF except for PRI mode, see transmission equalization switch settings) 553-1503 ISDN PRI Installation...
Page 66: Pri Installation: Xt, 71
Page 55 of 188 PRI installation: XT, 71 PRI circuit card locations Each PRI circuit card requires two adjacent slots on a shelf. As many as five circuit cards can be plugged into an empty network shelf, along with the power converter card, depending on the shelf type.
Page 67: Figure 20
Page 56 of 188 PRI installation: XT, 71 Procedure 8 Installing the QPC720 PRI in an XT, 71 Determine the cabinet and shelf location of the circuit card to be installed. The following slots can be used if they are not required for other cards.
Page 68: Table
PRI installation: XT, 71 Page 57 of 188 Install PRI circuit card in the assigned shelf and slot. Install network circuit card (if no network loop connection is available). If required, install I/O adapters in I/O panel. Run and connect the PRI cables. Figures 18 show the XT, 71 PRI cabling.
Page 69: Figure 18
Page 58 of 188 PRI installation: XT, 71 Figure 18 XT, 71 cabling without Echo Canceller QCAD130 or NT8D79xx to PRI Card (Secondary reference) PRI Card (Primary reference) QCAD130 or NT8D79xx QPC471 REF1 Clock Controller SCG0 QCAD110 QPC417 QCAD110 Junctor QCAD130 or NT8D79xx SCG1...
Page 70: Xt, 71 Cabling With Echo Canceller
PRI installation: XT, 71 Page 59 of 188 Figure 19 XT, 71 cabling with Echo Canceller QCAD130 or NT8D79xx to PRI Card (Secondary reference) PRI Card (Primary reference) QCAD130 or NT8D79xx QPC471 REF1 Clock Controller SCG0 QCAD110 QPC417 QCAD110 Junctor QCAD130 or NT8D79xx SCG1...
Page 71: Option Switch Settings For Pri Circuit Card
Page 60 of 188 PRI installation: XT, 71 Figure 20 Option switch settings for PRI circuit card 7-pole (See transmission equalization switch settings) 8-pole (All OFF except for PRI mode, see transmission equalization switch settings) 553-1503 553-2901-200 Standard 11.00 August 1996...
Page 72: Transmission Equalization Switch Settings For Pri
PRI installation: XT, 71 Page 61 of 188 Table 15 Transmission equalization switch settings for PRI Switch S2 settings To repeated facility To cross-connect point 5 on 0–45 m 0–30 m (0–150 ft) (0–100 ft) 2, 4, 6 on 46–135 m 31–100 m (151–450 ft) (101–355 ft)
Page 73: Table 16
QPC417 JCTR NT8D74xx QCP775 QCAD110 QPC471 CC-1 QPC417 JCTR NT8D74xx QCP775 QCAD124 QPC720 Network NT8D85xx QCAD328A QPC720 QPC757 NTND26 QPC720 NT6D80 X11 release 18 and later QCAD128 QPC720 I/O Panel NT8D83xx QCAD133 I/O Panel Patch Panel NT8D97Ax QCAD129 QPC720 I/O Panel...
Page 74: Cable Connections And Destinations For Xt, 71
PRI installation: XT, 71 Page 63 of 188 Table 16 Cable connections and destinations for XT, 71 (Part 2 of 2) Cable From Des. Con. Des. Con. Notes RS-232 I/O Panel Echo Canceller RS-232 QPC720 Echo Canceller QCAD133 QPC720 Patch Panel NT8D83xx RS-232 QPC720...
Page 75: Removing The Qpc720 Pri
Page 64 of 188 PRI installation: XT, 71 Removing the QPC720 PRI The following procedure explains how to remove the PRI card from the XT, 71. Procedure 9 Removing the QPC720 PRI from XT, 71 Disable the D-channel in LD 96. Disable Network Loop using LD 60.
Page 76: Pri Installation: 81/ 81C
Page 65 of 188 PRI installation: 81/ 81C PRI circuit card locations Each PRI circuit card requires two adjacent slots on a shelf. As many as five circuit cards can be plugged into an empty network shelf, along with the power converter card, depending on the shelf type.
Page 77: Shelf And Slot Location Of Qpc720 In 81
Page 66 of 188 PRI installation: 81/ 81C Procedure 10 Installing the QPC720 PRI in an 81/81C Determine the location of the circuit card to be installed. The following slots can be used if they are not required for other cards. Table 17 Shelf and slot location of QPC720 in 81 System...
Page 78: Figure 21
PRI installation: 81/ 81C Page 67 of 188 Figure 21 Option 81/81C cabling without Echo Canceller QCAD130 or NT8D79xx to PRI Card (Secondary reference) PRI Card (Primary reference) QCAD130 or NT8D79xx QPC471 REF1 Clock Controller SCG0 QCAD110 QPC417 QCAD110 Junctor QCAD130 or NT8D79xx SCG1...
Page 79: 81/81C Cabling With Echo Canceller
Page 68 of 188 PRI installation: 81/ 81C Figure 22 81/81C cabling with Echo Canceller QCAD130 or NT8D79xx to PRI Card (Secondary reference) PRI Card (Primary reference) QCAD130 or NT8D79xx QPC471 REF1 Clock Controller SCG0 QCAD110 QPC417 QCAD110 Junctor QCAD130 or NT8D79xx SCG1 REF2...
Page 80: Option Switch Settings For Pri Circuit Card
PRI installation: 81/ 81C Page 69 of 188 Figure 23 Option switch settings for PRI circuit card 7-pole (See transmission equalization switch settings) 8-pole (All OFF except for PRI mode, see transmission equalization switch settings) 553-1503 ISDN PRI Installation...
Page 81: Transmission Equalization Switch Settings For Pri
Page 70 of 188 PRI installation: 81/ 81C Table 18 Transmission equalization switch settings for PRI Switch S2 settings To repeated facility To cross-connect point 5 on 0–45 m 0–30 m (0–150 ft) (0–100 ft) 2, 4, 6 on 46–135 m 31–100 m (151–450 ft) (101–355 ft)
Page 82: Table 19
QPC417 JCTR NT8D74xx QCP775 QCAD124 QPC720 Network Run to NT8D85xx connector on network pack QCAD328 QPC720 QPC757 Run directly to DCHI card NTND26 QPC720 NT6D80 X11 release 18 and later QCAD128 QPC720 Run via cabinet NT8D83xx Panel I/O panel to CSU,...
Page 83: Cable Connections And Destinations For 81/81C
Page 72 of 188 PRI installation: 81/ 81C Table 19 Cable connections and destinations for 81/81C (Part 2 of 2) Cable From Des. Con. Des. Con. Notes QCAD133 I/O Panel Patch Run via cabinet NT8D83xx Panel I/O panel to CSU, Echo Canceller, or cross-connect terminal...
Page 84: Removing The Qpc720 Pri
PRI installation: 81/ 81C Page 73 of 188 Removing the QPC720 PRI The following procedure explains how to remove the PRI card from the 81/81C. Procedure 11 Removing the QPC720 PRI from 81/81C Disable the D-channel in LD 96. Disable Network Loop using LD 60. The command is DISL x. If the circuit card is being completely removed, not replaced, remove data from memory.
Page 85: Clock Controller Installation
Page 75 of 188 Clock Controller Installation There are three steps to installing a Clock Controller: Determining the location of the Clock Controller card (shelf and slot). Setting the switches on the card. Inserting the card and connecting the cables. This step may also entail removing an old card.
Page 86: Determining Slots And Shelves
Page 76 of 188 Clock Controller Installation Determining slots and shelves The Clock Controller card installation site varies from system to system. Table 20 shows the systems, the shelves used, and the available slot or slots. Table 20 Clock Controller shelves and slots System Shelf Slot(s)
Page 87: Table 22
Clock Controller Installation Page 77 of 188 Table 22 Clock Controller switch settings for QPC471 vintages B through G System Switch Setting ST, STE, 21, 21A, 21E Jumper Plug J1 TP8-9 Jumper Plug J2 TP11-TP12 NT, RT, 51, 61 Jumper Plug J1 TP8-TP9 Jumper Plug J2 TP11-TP12...
Page 88: Clock Controller Switch Settings For Qpc471 Vintage H
Page 78 of 188 Clock Controller Installation Table 23 Clock Controller switch settings for QPC471 vintage H System ST, STE, 21A, 21, 21E RT, NT, 51/51C, 61/61C XN, XT, 71, 81/81C Cable length between the J3 faceplate connectors: 0-4.3 m (0-14 ft.) 4.6–6.1m (15–50 ft.)
Page 89: Replacing A Clock Controller
Clock Controller Installation Page 79 of 188 Replacing a Clock Controller Step 2 in Procedure 12 explains how to replace a card. Do not disable an active clock or a clock associated with an active CPU. Installing a Clock Controller Be sure to inspect the Clock Controller card before installing it.
Page 90 Page 80 of 188 Clock Controller Installation — ENYL loop: Enable yellow alarm processing for loop — EREF: Enable automatic switchover of system clocks — SSCK x: Obtain status of system clock x — SWCK: Switch system clock between active and standby —...
Page 91 Clock Controller Installation Page 81 of 188 Install the new Clock Controller in the selected slot. Connect the cables to the new card. — Connect the primary reference to J2. — If applicable, connect the secondary reference to J1. Set the faceplate ENL/DIS switch to ENL (enable). Enable the Clock Controller by entering ENL CCx in LD 60.
Page 92: Installing The Clock Controller In A Single Group
Page 82 of 188 Clock Controller Installation Installing the Clock Controller in a single group Procedure 13 Installing the Clock Controller in the NT, 61/ 61C Note: Refer to the tables in this section to be sure you are using the correct vintage.
Page 93 Clock Controller Installation Page 83 of 188 Set faceplate ENL/DIS switch to DIS. Install Clock Controller in the selected slot. Run and connect cables — Connect the primary reference to J2. — If available, connect the secondary reference to J1. —...
Page 94 Page 84 of 188 Clock Controller Installation Procedure 15 Installing the Clock Controller in the XN, XT, 71, and 81/ 81C Note: Refer to the tables in this section to be sure you are using the correct vintage. Set faceplate ENL/DIS switch to DIS on new Clock Controller card. If replacing an existing Clock Controller card, do the following: —...
Page 95 Clock Controller Installation Page 85 of 188 Execute the ENL CC X command in LD 60. The faceplate LED should go to the OFF state. Enable the Clock Controller by entering ENL CC x in LD 60. Set the error detection thresholds and clock synchronization controls in LD 73.
Page 96: Dchi Installation For All Systems
DCHI installation for all systems Installing the QPC757 DCHI Installation instructions for the QPC757 DCHI are the same for the ST, STE, RT, NT, and XT, as well as the 21, 21E, 51/51C, 61/61C, 71, and 81/81C. See Figures 24 for option switch settings per port number of the DCHI card in Primary Rate Interface.
Page 97 Determine the cabinet and shelf location of the circuit card to be installed. The QPC757 DCHI card can be installed in any slot appropriate for an I/O port card on a network shelf. For single CPU systems only, the QPC757 DCHI card can be located on the Common Equipment (CE) shelf.
Page 98: Qpc757 Option And Pri/Isl High Speed Programming Switch Settings
DCHI installation for all systems Page 89 of 188 Figure 24 QPC757 option and PRI/ISL high speed programming switch settings QPC757C DCHI 1234 | | | | jumper Jumpers for port J1, RS-232 Port address switch. the async port. The See table below.
Page 99: Figure 25
Page 90 of 188 DCHI installation for all systems Figure 25 QPC757 option switch settings for PRI/ISL low speed programming QPC757C DCHI 1234 | | | | jumper RS-232 Jumpers for port J1, the async port. HS (RS-422) The port is always the lower, even number.
Page 100: D-Channel Parameter Downloading
DCHI installation for all systems Page 91 of 188 D-channel parameter downloading Beginning with X11 release 14, system upgrades often contain changes to D-channel parameters. The Meridian 1 software automatically downloads the new parameters to each D-channel Interface (DCHI) circuit card upon SYSLOAD.
Page 101: Removing The Qpc757 Dchi
Page 92 of 188 DCHI installation for all systems Removing the QPC757 DCHI The following procedure explains how to remove the QPC757 DCHI card. CAUTION The QPC757 DCHI must be software disabled before it is hardware disabled to prevent initialization.
Page 102: Msdl Installation For All Systems
Page 93 of 188 MSDL installation for all systems Installing the MSDL The MSDL card is installed the same way for the STE, NT, RT, XT 21E, 51/51C, 61/61C, 71, and 81/81C systems. See Figure 26 Table 25 for the port and interface switch settings.
Page 103 Page 94 of 188 MSDL installation for all systems Procedure 18 Installing the MSDL card Determine module and slot location for the MSDL card. Refer to the list on the previous page. Unpack and inspect the MSDL card. Set the MSDL switch settings to correspond to Table 25 Figure Insert the MSDL card into the selected card slot of the module...
Page 104: Figure 26 Msdl Card Layout
MSDL installation for all systems Page 95 of 188 Figure 26 MSDL card layout Card Address Switches Tens Ones S9 S10 Port 0 Port 1 Port 2 Port 3 Monitor Port 553-5431 ISDN PRI Installation...
Page 105: Msdl Switch Settings
Page 96 of 188 MSDL installation for all systems Table 25 MSDL switch settings Port 0—SW4 Port 0—SW8 off off off off off off off off off off off off off off off off off off RS-232-D RS-422-A DTE off off off off off off off off on on on on on on on on on on RS-422-A DCE on on on on on on on on off off off off off off off off off off Port 1—SW3 Port 1—SW7...
Page 106 MSDL installation for all systems Page 97 of 188 Procedure 19 Replacing the MSDL card Disable the MSDL card in LD 96. Disconnect MSDL to PRI cables. Remove the faulty MSDL card. Unpack and inspect the new MSDL card. Set the MSDL switch settings to correspond to Table 25 Figure Insert the new MSDL card into the selected card slot of the module...
Page 107: Ntd12 Dual-Port Dti/Pri Card Description And Installation
PRI cards and one QPC414 ENET into one card. The NT5D12 occupies a single Network shelf slot and provides two DTI/PRI network connections, an optional connection to an external D-Channel Handler, the QPC757 D-Channel Handler Interface (DCHI) or NT6D80 Multi-purpose Serial Data Link (MSDL), and an optional plug-on NTBK51AA Downloadable D-Channel daughterboard (DDCH.)
Page 108: Supported Software Releases
Page 100 of 188 NTD12 Dual-port DTI/PRI card description and installation Supported software releases Table 26 shows the Generic X11 software releases that are supported on the NT5D12. Table 26 - Supported software releases on the NT5D12 Software Trunk Type & Signalling Release DTI/Dual Pulse DTI/DTMF...
Page 109: Ntbk51Aa Daughterboard
NTD12 Dual-port DTI/PRI card description and installation Page 101 of 188 NTBK51AA daughterboard The optional dual-port Downloadable D-Channel daughterboard (DDCH, NTBK51AA) has been introduced to be used with the NT5D12 DDP in system hardware configurations as an alternative to an MSDL or a DCHI card (refer to “Hardware required for DDP configuration”...
Page 110: D-Channel And Msdl Interface
Page 102 of 188 NTD12 Dual-port DTI/PRI card description and installation The main functions of the card are: — Dual-port Serial Communication Controller message handling with DMA for support of 2 D-channels; — Sanity check and Self Tests; — Program download from the Meridian 1 CPU; —...
Page 111 NTD12 Dual-port DTI/PRI card description and installation Page 103 of 188 Table 27 - DCHI/MSDL Receiver Ready control signals RR State Condition D-Channel data rate selected at 64 Kbps or 56 Kbps or 64 Kbps inverted PRI loop is enabled PRI link is not in RED alarm mode state PRI link is not transmitting a yellow alarm pattern PRI link is not receiving a Remote Alarm Indication from the...
Page 112: Ddp Faceplate
Page 104 of 188 NTD12 Dual-port DTI/PRI card description and installation DDP faceplate Figure 27 Figure 28 illustrate the faceplate layout for the DDP card. The faceplate contains an enable/disable switch; a DDCH status LED; 6 x 2 trunk port status LEDs; and six external connectors. Table 28 shows the name of each connector, its designation with respect to the faceplate and the name and...
Page 113: Figure 27 - Nt5D12 Faceplate - General View
NTD12 Dual-port DTI/PRI card description and installation Page 105 of 188 Figure 27 - NT5D12 faceplate - general view Dual PRI p0 p1 clk0 Port 0 clk1 clk0 Port 1 clk1 NT5D12AA Rlse 01 P0 P1 Loop Loop DCH DCH ISDN PRI Installation...
Page 114: Figure 28 - Ddp Faceplate - Detailed View
Page 106 of 188 NTD12 Dual-port DTI/PRI card description and installation Figure 28 - DDP faceplate - detailed view Dual PRI D-Channel LED Card Enable / Disable Switch P0 P1 Port Out Of Service LED Trunk Port Disable LED Trunk Port Active LED Red Alarm LED Yellow Alarm LED Loop Back LED...
Page 115 NTD12 Dual-port DTI/PRI card description and installation Page 107 of 188 Table 28 - External connectors and LEDs Faceplate Function Type Description Designator Switch ENB/DIS Plastic, ESD Card Enable/disable switch protected Port 0 Clock 0 RJ11 Connector Connects reference clock to Clock Controller card Port 0 Clock 1 RJ11 Connector...
Page 116 Page 108 of 188 NTD12 Dual-port DTI/PRI card description and installation The following is a brief description of each element on the faceplate: Enable/Disable Switch This switch is used to disable the card prior to insertion or removal from the network shelf;...
Page 117 — Digital trunk port 0 receive and transmit Tip / Ring pairs. — Digital trunk port 1 receive and transmit Tip / Ring pairs. Connector J6 (DCH) A 26 pin D-type connector, used to connect the DDP card to MSDL or QPC757 external D-channel handlers. ISDN PRI Installation...
Page 118: System Capacity And Performance
Page 110 of 188 NTD12 Dual-port DTI/PRI card description and installation System capacity and performance Physical capacity Each DDP card occupies one slot on the network shelf. It supports two digital trunk circuits and two network loops. The total number of DDP cards per system is limited by the number of network loops, physical capacity of the shelf, number of DTI/PRI interfaces allowed by the software and the range of DCH addresses.
Page 119: Power Requirements
NTD12 Dual-port DTI/PRI card description and installation Page 111 of 188 Power requirements Table 29 lists the power requirements for the DDP card. Table 29 - DDP power requirements Voltage Source Current DDP (without DDP (with NTBK51AA) NTBK51AA) Backplane 3.8A +12V Backplane 25mA...
Page 120: Testability And Diagnostics
Page 112 of 188 NTD12 Dual-port DTI/PRI card description and installation Testability and diagnostics The DDP card supports all current QPC720 testing and maintenance functions through the following procedures: • Selftest upon power up or reset; • Signalling test performed in the OVL 30; •...
Page 121: Hardware Required For Ddp Configuration
However, DDP loops must be configured in software before defining DCH links. — one NT6D80 MSDL or optionally, as a plug-on — one NTBK51AA Downloadable D-Channel daughterboard or optionally, an external DCHI card — one QPC757 DCHI Clock Controller — QPC471/QPC775 Clock Controller(s) ISDN PRI Installation...
Page 122 Page 114 of 188 NTD12 Dual-port DTI/PRI card description and installation Other hardware Additional hardware may also required for PRI capability and applications. Installation instructions are given in other Northern Telecom publications or supplied by the manufacturer. This additional hardware may include: —...
Page 123: Cabling Requirements
NTD12 Dual-port DTI/PRI card description and installation Page 115 of 188 Cabling requirements This section lists the types of cable used and the lengths required for internal and external NT5D12 DDP connections. Note 1: No additional cabling is required for nB+D configurations. Multiple DDPs and the D-channel are associated through software in Overlay 17.
Page 124: Trunk Tip/Ring Cables
Page 116 of 188 NTD12 Dual-port DTI/PRI card description and installation • NTCK80AD Trunk Tip/Ring cables NT5D16AA The NT5D16AA (8 ft) is a 100Ω cable for Meridian 1 and Meridian SL-1 systems equipped with an I/O filter panel, connecting the 9 pin D-type TRK port on the DDP faceplate to the I/O filter.
Page 125: Table
NTD12 Dual-port DTI/PRI card description and installation Page 117 of 188 Table 30- NT5D16AA cable pins I/O Panel Cable Name Description Color pins (J5) pins (J2, J3) T-PRI0TX Trunk 0 Transmit Tip Black J5-1 P0J3-1 P0J2-3 R-PRI0TX Trunk 0 Transmit Ring J5-2 P0J3-9 P0J2-9...
Page 126 Page 118 of 188 NTD12 Dual-port DTI/PRI card description and installation NT5D17AA The NT5D17AA (50 ft) is a 100Ω cable for Meridian SL-1 systems not equipped with an I/O filter panel, connecting the 9 pin D-type TRK port on the DDP faceplate directly to the Network Channel Terminating Equipment (NCTE).
Page 127: Table
NTD12 Dual-port DTI/PRI card description and installation Page 119 of 188 Table 31- NT5D17AA cable pins DDP pins NCTE pins Cable Name Description Color (J5) (J3) T-PRI0TX Trunk 0 Transmit Tip Black J5-1 P01-1 R-PRI0TX Trunk 0 Transmit Ring J5-2 P0-9 T-PRI0RX Trunk 0 Receive Tip...
Page 128 Page 120 of 188 NTD12 Dual-port DTI/PRI card description and installation QCAD133 The QCAD133 (50 ft) is used for Meridian SL-1 systems equipped with an I/O filter panel, connecting the 15 pin I/O filter connector to the 15 pin NCTE connector.
Page 129: Reference Clock Cables
NTD12 Dual-port DTI/PRI card description and installation Page 121 of 188 Reference clock cables The NTCG03AA (14 ft), NTCG03AB (2.8 ft.), NTCG03AC (4.0 ft.), or NTCG03AD (7 ft.) is a DDP card to Clock Controller cable, connecting each of the CLK0 or CLK1 ports on the DDP faceplate to the primary or secondary source ports on Clock Controller card 0 or 1.
Page 130: Msdl/Dchi Cables
NTD12 Dual-port DTI/PRI card description and installation MSDL/DCHI cables External DCHI cable The NTCK46 cable connects the DDP card to the QPC757 DCHI D-Channel Handler card. The cable is available in four different sizes: — NTCK46AA (6 ft) - DDP to DCHI cable —...
Page 131 NTD12 Dual-port DTI/PRI card description and installation Page 123 of 188 External MSDL cable The NTCK80 cable connects the DDP card to the NT6D80 MSDL card. The cable is available in four different sizes: — NTCK80AA (6 ft) - DDP to MSDL cable —...
Page 132: Cabling Diagrams
Page 124 of 188 NTD12 Dual-port DTI/PRI card description and installation Cabling diagrams Figure 29 Figure 30 provide examples of typical cabling configurations for the DDP. Please note that these figures are representational only, and are not intended to show the relational card slot position of the various cards. Figure 29 shows a typical DDP cabling for a Meridian 1 system Option with an I/O panel, with the connection between the I/O panel and a Network...
Page 133: Figure 29 - Ddp Cabling For Meridian 1 And Meridian Sl-1 Systems With An
NTCG03 cables clk0 to the Port 0 "Clocking clk1 configurations" clk0 chapter Port 1 clk1 I/O Panel NT5D16AA cable NCTE QCAD133 cable QCAD133 cable NTCK80 cable (to MSDL) or NTCK46 cable (to DCHI) NT6D80 MSDL, QPC757 DCHI ISDN PRI Installation...
Page 134 NTCG03 cables clk0 to the Port 0 "Clocking clk1 configurations" clk0 chapter Port 1 clk1 NCTE NT5D17AA cable NTCK80 cable (to MSDL) or NTCK46 cable (to DCHI) NT6D80 MSDL, QPC757 DCHI 553-2901-200 Standard 11.00 August 1996...
Page 135: Clocking
NTD12 Dual-port DTI/PRI card description and installation Page 127 of 188 Clocking Clock operation There are two types of clock operation - tracking mode and free-run mode. Tracking mode In tracking mode, the DDP loop supplies an external clock reference to a clock controller.
Page 136 Page 128 of 188 NTD12 Dual-port DTI/PRI card description and installation Figure 31 - Clock Controller primary and secondary tracking primary REF 1 Clock Controller Primary clocking source PRIMARY Reference primary REF 2 clock controller back-up REF 1 secondary SECONDARY Secondary Reference clocking...
Page 137: Reference Clock Errors
NTD12 Dual-port DTI/PRI card description and installation Page 129 of 188 Reference clock errors Meridian 1 software checks at intervals of 1 to 15 minutes to see if a clock controller or reference-clock error has occurred. (The interval of this check can be configured in Overlay 73.) In tracking mode, at any one time, there is one active clock controller which is tracking on one reference clock.
Page 138: Automatic Clock Switching
Page 130 of 188 NTD12 Dual-port DTI/PRI card description and installation Automatic clock switching If the EREF command is selected in Overlay 60, tracking on the primary or secondary reference clock is automatically switched in the following manner: — If software is unable to track on the assigned primary reference clock, it switches to the secondary reference clock and sends appropriate DTC maintenance messages.
Page 139: Table
NTD12 Dual-port DTI/PRI card description and installation Page 131 of 188 Table 32 - Clock Controller options- summary CC Option CPU Type Notes Option 1 Single Ref from P0 on Clk0 Ref from P1 on Clk0 Option 2 Dual Ref from P0 on Clk0 Ref from P0 on Clk1 Option 3 Dual...
Page 140 Page 132 of 188 NTD12 Dual-port DTI/PRI card description and installation Table 33 - Clock Controller options - description Clock Option Notes Option 1 This option provides a single CPU system with 2 clock sources derived from the 2 ports of the DDP. Connector Clk0 provides a clock source from Port 0.
Page 141: Figure
NTD12 Dual-port DTI/PRI card description and installation Page 133 of 188 Figure 32 - Clock Controller - Option 1 CC for CPU Clk 0 Secondary Ref Port 0 J1 Sec Primary Ref Clk 1 J2 Pri Secondary Reference Clk 0 Port 1 Clk 1 Primary Reference...
Page 142: Figure
Page 134 of 188 NTD12 Dual-port DTI/PRI card description and installation Figure 33 - Clock Controller - Option 2 DDP 1 CC for CPU0 Clk 0 J1 Sec Port 0 Primary Reference Primary Ref 1 Clk 1 J2 Pri Clk 0 CC for CPU1 Port 1 Clk 1...
Page 143: Figure
NTD12 Dual-port DTI/PRI card description and installation Page 135 of 188 Figure 34 - Clock Controller - Option 3 DDP1 CC for CPU0 J1 Sec Port 0 Primary Ref 1 Clk 1 J2 Pri Clk 0 Primary Reference CC for CPU1 Port 1 Clk 1 J1 Sec...
Page 144: Figure
Page 136 of 188 NTD12 Dual-port DTI/PRI card description and installation Figure 35 - Clock Controller - Option 4 CC for CPU0 Secondary Ref 1 Clk 0 J1 Sec Primary Ref 1 Port 0 J2 Pri Clk 1 Primary Reference CC for CPU1 Clk 0 Secondary Ref 2...
Page 145: Ddp Installation And Removal
NTD12 Dual-port DTI/PRI card description and installation Page 137 of 188 DDP installation and removal DDP circuit card locations Each DDP circuit card requires one slot on a shelf. DDP cards can be placed in any card slot in the network bus, subject to the cautionary note below. CAUTION Some installed-based systems may have a Bus Terminating Unit (BTU) already installed.
Page 146: Replacement Of A Digital Trunk (Qpc720/Qpc472) By A Ddp Card
Page 138 of 188 NTD12 Dual-port DTI/PRI card description and installation Replacement of a digital trunk (QPC720/QPC472) by a DDP card The following discussion describes possible scenarios when replacing a digital trunk QPC720 PRI card or QPC472 DTI card configuration with a NT5D12 DDP card configuration.
Page 147: Ddp Switch Settings
NTD12 Dual-port DTI/PRI card description and installation Page 139 of 188 DDP switch settings The DDP card is equipped with 6x2 sets of DIP switches for trunk parameters settings for port0 and port1 respectively. Additionally, the DDP card is equipped with one set of four DIP switches for the Ring Ground setting and one set of eight DIP switches for the D-Channel Handler parameters setting.
Page 148: Trunk Interface Switches
Page 140 of 188 NTD12 Dual-port DTI/PRI card description and installation Trunk interface switches Transmission Mode A per trunk switch provides selection for T1 transmission. Table 35- Trunk interface transmission mode switch settings Description S4/S10 Switch Setting For future use. Line Build Out A per trunk set of three switches provides selection between 0, 7.5 or 15 dB values.
Page 149: Ring Ground Switches
NTD12 Dual-port DTI/PRI card description and installation Page 141 of 188 Receiver Impedance A per trunk set of four DIP switches provides selection between 75, 100 or 120 Ω values. Table 37 - Trunk interface receiver impedance switch settings Description S8/S14 Switch Setting 75 Ω...
Page 150: Dch Mode And Address Select Switches
Page 142 of 188 NTD12 Dual-port DTI/PRI card description and installation DCH mode and address select switches A set of eight DIP switches selects between an on-board NTBK51AA D-Channel daughterboard and an external MSDL/DCHI card. In case of an on-board NTBK51AA D-Channel daughterboard, four of the switches provide the daughterboard address.
Page 151 NTD12 Dual-port DTI/PRI card description and installation Page 143 of 188 Table 40- NTBK51AA daughterboard address select switch settings Device Switch Setting Address Note 1: The maximum number of DCHI, MSDL, and DDCH devices in the system is 16. The Device Addresses are equivalent to the MSDL DNUM designations. For programming information on the MSDL, refer to NTPs 553-3001-195 and 553-3001-400.
Page 152 Page 144 of 188 NTD12 Dual-port DTI/PRI card description and installation Figure 36 - Switches Functional Areas Faceplate Port 0 Port 1 General Purpose Switches Receiver Impedence Line Build Out Switches Transmission Mode DCH Mode and Address Select Switches Functions and Areas 553-2901-200 Standard 11.00 August 1996...
Page 153 NTD12 Dual-port DTI/PRI card description and installation Page 145 of 188 Figure 37 - Switch Default Settings Switch Default Setting ISDN PRI Installation...
Page 154: Installing The Nt5D12 Ddp
Page 146 of 188 NTD12 Dual-port DTI/PRI card description and installation Installing the NT5D12 DDP CAUTION The static discharge bracelet located inside the cabinet must be worn before handling circuit cards. Failure to wear the bracelet can result in damage to the circuit cards. Procedure 20 - Installing the NT5D12 DDP Step Action...
Page 155 NTD12 Dual-port DTI/PRI card description and installation Page 147 of 188 Run and connect the DDP cables Note: Refer to “Cabling requirements” on page 115 for cable lengths and attributes. For example, when connecting the DDP to the I/O panel, the NT5D16AA must be used. For a Monitor Jack connection, this cable is equipped with a bantam plug connector for each trunk port.) CAUTION...
Page 156: Removing The Nt5D12 Ddp
Page 148 of 188 NTD12 Dual-port DTI/PRI card description and installation Removing the NT5D12 DDP CAUTION The static discharge bracelet located inside the cabinet must be worn before handling circuit cards. Failure to wear the bracelet can result in damage to the circuit cards. Procedure 21 - Removing the NT5D12 DDP Step Action...
Page 157: Configuring The Nt5D12 Ddp
0 or 1 when specifying the loop number used by the DCH); — You cannot define one of the DDP loops for the NTBK51AA DDCH, and the other loop for for the QPC757 DCHI or the NT6D80 MSDL. ISDN PRI Installation...
Page 158: Ddch Installation For All Systems
Page 150 of 188 NTD12 Dual-port DTI/PRI card description and installation DDCH installation for all systems Installation note Before beginning an installation, do the following: — Consult the Spares Planning Guide (553-3001-153) document and follow the instructions. — Bring spares of all cables and boards. —...
Page 159: Installing The Ddch Daughterboard
NTD12 Dual-port DTI/PRI card description and installation Page 151 of 188 Installing the DDCH daughterboard Installation instructions for the DDCH (NTBK51AA) card are the same for Meridian 1 Options 21/21E, 51/51C, 61/61C, 71, and 81/81C, and Meridian SL-1 STE, RT, XT, and NT systems. Set the address for the DDCH (see the switch settings section to set the address).
Page 160: Ddch Removal For All Systems
Page 152 of 188 NTD12 Dual-port DTI/PRI card description and installation DDCH removal for all systems Removing the DDCH daughterboard Removal instructions for the DDCH (NTBK51AA) card are the same for Meridian 1 Options 21/21E, 51/51C, 61/61C, 71, and 81/81C, and Meridian SL-1 STE, RT, XT, and NT systems.
Page 161: Echo Canceller For All Systems
Page 153 of 188 Echo Canceller for all systems PRI to Echo Canceller pin assignments Echo Cancellers are required only if using satellite transmission. The Echo Canceller detects the length of the loop then cancels reflected transmission (hearing your own voice at the other end). The Echo Canceller is controlled by an RS-232 port on the QPC720 PRI circuit card.
Page 162: Electromagnetic Interference
Page 154 of 188 Echo Canceller for all systems Table 42 Echo Canceller operating parameters Data transfer rate 4800 baud System unit number Display timeout active Failures before alarm Table 43 Echo Canceller initialization procedures Note: Each of the 24 channels on the Echo Canceller must be initialized as shown below: Bypass Off-Hook...
Page 163 Echo Canceller for all systems Page 155 of 188 Figure 38 PRI to Echo Canceller cabling Cross-Connect NCTE Block (if reqd) I/O Filter Echo Canceller XTIP XRING GRD (Shield) Network Port RTIP RRING GRD (Shield) QPC720 (If equipped) RXD (BB) TXD (BA) DCD (CF) RS232...
Page 164: Isl Installation For All Systems
Page 157 of 188 ISL installation for all systems ISL configurations The ISDN Signaling Link (ISL) feature operates in two modes (Figure 39): — Shared mode—One DCH supports PRI with DTI or analog. — Dedicated mode—In this mode, the DCH supports only ISL trunks using ISDN PRI signaling.
Page 165 Page 158 of 188 ISL installation for all systems Figure 39 ISL settings QPC757C DCHI 1234 | | | | jumper RS-232 Jumpers for port J1, the async port. HS (RS-422) The port is always the lower, even number. RS-232 HS (RS-422) Place jumper plugs in RS-232...
Page 166: Msdl Switch Settings
ISL installation for all systems Page 159 of 188 MSDL switch settings For ISL functions, use the following switch settings (Figure 40): — DTE for high speed programming — RS-232 for 19.2 Kbps and below — External clock (in LD 17) provided by modem, ADM, ASIM, or HSDM, otherwise DCH runs at 64 Kbps Figure 40 MSDL/ISL settings...
Page 167: Shared Mode
Page 160 of 188 ISL installation for all systems Shared mode In shared mode, the D-channel is provided by the DCHI or MSDL card and PRI. The hardware configuration is basically the same as the ISDN PRI D-channel. See Figure Shared mode is established through service change in LD 17, prompt USR, with the response SHA.
Page 168: Dedicated Mode Using Leased Line
ISL installation for all systems Page 161 of 188 Dedicated mode using leased line In this configuration, the D-channel connects the DCHI or MSDL to a modem, which communicates with a far-end modem over a dedicated leased line. See Figure 42.
Page 169: Figure 43
Page 162 of 188 ISL installation for all systems Examples of parameters used for actual autoanswer and autodial sites are shown on the following pages. The Hayes Smartmodem 2400 User’s Guide contains explanations of the parameters used. After the software parameters have been set up, the JP1 jumpers behind the front faceplate of the Hayes Smartmodem 2400 must be dumb strapped on both modems.
Page 170: Pin Assignment For D-Channel Rs-232 Interface
ISL installation for all systems Page 163 of 188 Table 44 identifies the signals sent from the pack to the modem, the signals the pack requires from the modem, and the state of the modem. Table 44 Pin assignment for D-channel RS-232 interface Designation Direction State...
Page 171: Dedicated Mode Using Pri/Dti Trunks
Page 164 of 188 ISL installation for all systems Dedicated mode using PRI/DTI trunks In this configuration, the DCHI or MSDL is connected to a High Speed Data Module (HSDM) or Asynchronous/Synchronous Interface Module (ASIM). Figure 44. The HSDM or ASIM is connected to a Data Line Card (DLC). The call is then connected to the far end through the DLC to DTI trunk path.
Page 172 ISL installation for all systems Page 165 of 188 Figure 44 ISL dedicated mode: using PRI/DTI trunk 500/2500 telephone 500/2500 telephone Meridian 1 Host Meridian 1 T1 facility Multi- Channel Data System PC interface SL-1 telephone SL-1 telephone 553-1316 QMT11 switch settings—If using the QMT11 ASIM, set the dip switches, located on top of the unit under the flip-up, as follows: —...
Page 173: Isl Installation
Page 166 of 188 ISL installation for all systems QMT21C switch settings—If using the QMT21 HSDM, set the dip switches, located on top of the unit under the flip-up, as follows. — Hotline On; See Note 1. — Forced DTR On;...
Page 174: Isl Dedicated Mode (Digital And Analog)
ISL installation for all systems Page 167 of 188 ISL dedicated mode (digital and analog) DTI should already be up and running. In LD 17, configure ISL for dedicated mode. ISLD ISLM Number of trunks handled by this D-channel (1–382) In LD 16, configure the Route Data Block to map out the software parameters for these trunks.
Page 175: Pri Cabling Information
Page 169 of 188 PRI cabling information This section provides information required to build cables of nonstandard lengths for ISDN Primary Rate Interface (PRI) applications. QCAD128/NT8D83xx This cable transports the T1 signal from the PRI pack to the I/O panel. See Table —...
Page 176: Qcad128/Nt8D83Xx Wire List
Page 170 of 188 PRI cabling information Table 45 QCAD128/NT8D83xx wire list From Signal P1-1 P2-1 XTIP (transmit tip) to telephone company P1-2 P2-2 GND (ground) P1-3 P2-3 RTIP (receive tip) from telephone company P1-4 P2-4 GND (ground) P1-5 P2-5 P1-6 P2-6 P1-7...
Page 177: Qcad129/Nt9J93Xx
PRI cabling information Page 171 of 188 QCAD129/NT9J93xx This cable connects the RS-232-C interface between an Echo Canceller and the PRI card. See Table — Standard length—7 ft (2.1 m) — Construction—22 AWG (0.644 mm), stranded — P1 Connector—15-pin, male, subminiature D, with jack-screws —...
Page 178: Qcad133/Nt8D83Xx
Page 172 of 188 PRI cabling information QCAD133/NT8D83xx For cabinets with an I/O filter assembly, this cable transports the T1 signal from the I/O filter to the Network Channel Terminating Equipment (NCTE) telephone company interface. See Table For cabinets without an I/O filter assembly, this cable transports the T1 signal from the QPC720 PRI pack to the NCTE telephone company interface.
Page 179: Qcad328
PRI cabling information Page 173 of 188 QCAD328 This cable connects the PRI pack to the D-channel interface card, the QPC757 DCHI. There are four types of QCAD328 cables: QCAD328A, QCAD328B, QCAD328C, and QCAD328D. See Table — QCAD328A—6 ft (1.8 m) —...
Page 180: Nt8D74 Clock Controller To Intergroup Cable
Page 174 of 188 PRI cabling information NT8D74 Clock Controller to InterGroup cable This cable connects the QPC471 Clock Controller card to the NT8D36 InterGroup Module. This cable is available in the following lengths: — NT8D74AC 1.2 m (4 ft) —...
Page 181: Nt8D83 Pri/Dti To I/O Cable
PRI cabling information Page 175 of 188 NT8D83 PRI/DTI to I/O cable This cable connects the PRI/DTI card (T1 port) to the I/O connector panel. This cable is available in the following lengths: — NT8D83AC 1.2 m (4 ft) — NT8D83AD 1.8 m (6 ft) NT8D85 Network to PE cable This cable connects the following:...
Page 182: Nt8D86 Network To I/O Cable
Page 176 of 188 PRI cabling information NT8D86 Network to I/O cable This cable connects the following to the I/O connector panel: — QPC414 Network card — PRI/DTI card — QPC659 Dual Loop Peripheral Buffer card — NT8D47 RPE This cable is available in the following lengths: —...
Page 183: Ntnd27 Msdl To I/O Panel Cables
PRI cabling information Page 177 of 188 NTND27 MSDL to I/O panel cables These cables connect the MSDL card to the I/O panel. — NTND27 6 ft NTND98 PRI to I/O panel cables These cables connect the PRI card to the I/O panel. —...
Page 184: Card Slot Positions For 21/ 21E, 51/51C, 61/61C, 71, And 81/81C
Page 179 of 188 ISDN card slot positions The following tables illustrate acceptable positions for the QPC720, QPC414, QPC471, QPC775, QPC757, and NT6D80 cards. Use this chart to determine where you are placing your cards before you actually begin your installation.
Page 185: Table 50
1 slot Shelf 1, QSD40: 2 per CPU for single group CE: 5–13 CE: 5–13 QSD76: QSD39: 2–10, 12 QSD39: 2–10 QPC757 2–10, 12 QSD40: 5–13, 3 QSD40: 5–13 1 slot — CE: 5–13 QSD76: QSD39: 2–10, 12 QSD39: 2–10 NT6D80 2–10, 12...
Page 186 Family Product Manual Contacts Copyright FCC notice Trademarks Document number Product release Document release Date Publish Copyright Statement © 1998 Northern Telecom All rights reserved Information is subject to change without notice. Northern Telecom reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.

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PRI Installation: ST, STE, 21, 21E

PRI Installation: RT

PRI Installation: NT, 51/51C, 61/61C

PRI Installation: XT, 71

PRI Installation: 81/ 81C

Clock Controller Installation

DCHI Installation for All Systems

MSDL Installation for All Systems

NTD12 Dual-Port DTI/PRI Card Description and Installation

Echo Canceller for All Systems

ISL Installation for All Systems

PRI Cabling Information

Quick Links

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Questions and answers

Related Manuals for Nortel QPC757

Summary of Contents for Nortel QPC757