Nortel QPC472 User manual

DTI/CPI Installation and data administration
Meridian 1
Digital Trunk Interface/Computer-to-PBX
Interface
Installation and data administration
Document Number: 553-2811-200
Document Release: Standard 6.0
Date: December 1994
Year Publish FCCTM
© 1991, 1994
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.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.
SL-1 and Meridian 1 are trademarks of Northern Telecom.

iii
DTI/CPI Installation and data administration
Revision history
September 16, 1991
Standard, release 1.0. Reissued for compliance with Northern Telecom
standard 164.0.
This document has been merged with DTI/CPI wire list (553-2811-200
Appendix 1). The information previously contained in that document is now
contained in the chapter, “Wire list,” in this document.
December 1, 1991
Standard, release 2.0. This document is reissued to include technical content
updates. Due to the extent of the changes, revision bars are omitted.
December 31, 1992
Standard, release 3.0. This document is issued to include technical updates.
Changes are noted with revision bars in the margins.
August 1, 1993
Standard, release 4.0. This document is reissued for updates and changes
resulting from X11 release 19. All updates are noted with revision bars in the
margins.
October 31, 1993
Standard, release 5.0. This document has been reorganized to enhance ease of
use and updated to reflect current technical information. Technical changes
are noted with revision bars in the margins.
December 1994
Standard, release 6.0. Reissued to include editorial changes and indexing.
Due to the extent of the changes, revision bars are not used.

v
DTI/CPI Installation and data administration
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Other documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DTI installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Equipment overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
DTI interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
QPC472 DTI specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
QPC720 PRI specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cable requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installation procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Removing the DTI card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ST, STE systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
MS systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
N/NT and RT systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
XN/XT systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
21A, 21, 51, 61, 71, and 81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Echo Canceller interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Clock Controller installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Determining slots and shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Replacing a Clock Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Installing a Clock Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Starting the Clock Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Clock Controller commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Installing the Clock Controller in a single group . . . . . . . . . . . . . . 36

vi Contents
553-2811-200 Standard 6.0 December 1994
Cabling requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
NT8D74 Clock Controller to InterGroup cable . . . . . . . . . . . . . . . 40
NT8D75 Clock Controller to Clock Controller cable . . . . . . . . . . . 40
NT8D79 PRI/DTI to Clock Controller cable . . . . . . . . . . . . . . . . . 41
Data administration . . . . . . . . . . . . . . . . . . . . . . . . 43
DTI data administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
CPI data administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Acceptance tests . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Self-test procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Automatic loop test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Automatic loop test procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Link diagnostic and remote loopback tests . . . . . . . . . . . . . . . . . . . 55
Link diagnostic and remote loopback test procedures . . . . . . . . . . 56
Wire list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
QCAD129/NT9J93xx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
QCAD133/NT8D97xx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
QCAD128/NT8D83xx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

vii
DTI/CPI Installation and data administration
List of figures
Figure 1
QPC472 DTI faceplate layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2
QPC720 PRI faceplate layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3
ST, STE cabling arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 4
Switch settings in DTI mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5
Switch settings in DTI mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 6
MS cabling arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 7
Switch settings in DTI mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 8
N/NT, 51, RT, and 61 single and half group cabling arrangement . . . 21
Figure 9
Switch settings in DTI mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 10
XN/XT and 71 cabling arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 11
DTI-to-Echo Canceller cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 12
DTI remote loopback test and DTI link diagnostic test . . . . . . . . . . . . 56

ix
DTI/CPI Installation and data administration
List of tables
Table 1
QPC472 transmission equalization SW2 switch settings for DTI . . . . 5
Table 2
QPC472 DTI external connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 3
QPC720 transmission equalization SW2 switch settings
for PRI/DTI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 4
SW3 options for the QPC720 PRI/DTI . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 5
QPC720 PRI external connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 6
DTI cables and cable lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 7
Possible card locations by system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 8
Cable connections to the Clock Controller, Network, Patch panel,
I/O panel, and Echo Canceller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 9
DTI-to-Echo Canceller pin assignments . . . . . . . . . . . . . . . . . . . . . . . 27
Table 10
Operating parameters for the Echo Canceller . . . . . . . . . . . . . . . . . . . 27
Table 11
Settings for the 24 channels on the Echo Canceller . . . . . . . . . . . . . . . 28

x List of tables
553-2811-200 Standard 6.0 December 1994
Table 12
Clock Controller shelves and slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 13
Clock Controller switch settings for QPC471 vintage A . . . . . . . . . . . 29
Table 14
Clock Controller switch settings for QPC471 vintages B, C, D, E,
F, and G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 15
Clock Controller switch settings for QPC471 vintage H . . . . . . . . . . . 31
Table 16
Clock Controller switch settings for QPC775 . . . . . . . . . . . . . . . . . . . 31
Table 17
QCAD129/NT9J93xx wire list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Table 18
QCAD133/NT8D97xx wire list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 19
QCAD128/NT8D83xx wire list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Page 1 of 66
DTI/CPI Installation and data administration
2
Introduction
This document provides installation, data administration, and acceptance test
procedures for the Digital Trunk Interface and Computer-to-PBX Interface
(DTI/CPI) features.
These features are available on ST, STE, RT, MS, N, NT, XN, and XT
systems and on Meridian 1 system options 21, 21E, 51, 61, 71, and 81. The
DTI/CPI features are offered on the following X11 software releases:
— Release 5 and later software for N and XN systems
— Release 8 and later for M, NT, and XT systems
— Release 9 and later for ST systems
— Release 12 and later for RT systems
— Release 15 and later for system options 21, 21A, 51, 61, and 71
— Release 18 and later for system options 21E, STE, and 81
Note: Throughout this document, Meridian 1 refers to all Meridian
systems unless otherwise noted.
The document includes the following sections:
— DTI installation: overview of DTI hardware, interfaces, and cable
requirements, including installation and removal procedures for DTI
cards, Echo Cancellers, and Clock Controllers.
— Data administration: procedures for provisioning the DTI feature and
the CPI feature.
— Acceptance tests : acceptance test procedures for the DTI feature.
— Wirelist :informationonbuildingexternal cables of nonstandardlengths
for DTI interface applications.

Page 2 of 66 Introduction
553-2811-200 Standard 6.0 December 1994
Other documentation
Refer to the following Northern Telecom Publications for more information:
— Meridian 1 system installation procedures (553-3001-210)
— Circuit card installation and testing (553-3001-211)
— ISDN Primary Rate Interface installation (553-2901-200)
— Digital Trunk Interface/Computer-to-PBX Interface maintenance
(553-2811-500)
— X11 input/output guide (553-3001-400)
— Digital Trunk Interface/Computer-to-PBX Interface description
(553-2811-100)

Page 3 of 66
DTI/CPI Installation and data administration
42
DTI installation
This chapter describes the procedures for installing and removing DTI/CPI
equipment and Clock Controllers in a variety of systems. The descriptions
include cable requirements.
The first part of the chapter provides detailed information on the DTI card. A
section on the Echo Canceller follows the DTI information. The last part of
the chapter focuses on Clock Controllers.
Equipment overview
TheDTI connectsa Networkloop toan externalDS-1 interfacefor bothvoice
and data transmission over 24 digital channels.
The DTI interface requires a QPC472 DTI or QPC720 Primary Rate
Interface (PRI) card. Because this document deals with DTI functions, both
cards are referred to as the “DTI” card or “DTI” hardware whenever their
function is identical.
Clock Controllers synchronize the system clock rate with the clock rates of
digital switching and transmission equipment over a T1 circuit. Dual CPU
systems have two Clock Controllers: CC0 (associated with CPU 0) and CC1
(associated with CPU 1).
The standard Meridian 1 Clock Controller is the QPC471 , currently available
in vintages C, D, E, F, G, and H. Option 81 must use vintage H.
Customers outside the United States can use the QPC775 . Vintage A of the
QPC775 can be used with non-networked systems (systems linked directly to
a central office); vintage B is appropriate for networked systems (Meridian 1
to Meridian 1 configuration). Customers with option 81 systems must use
QPC775 vintage C.