Nortel Networks NN43001-301 - Manual (Page 32)

32 ISDN Primary Rate Interface equipment overview
Faceplate destination Type
J2 9-pin female, D-connector
J3 36-pin connector
J4 15-pin male, D-connector
J5 15-pin male, D-connector
J6 15-pin female, D-connector
RCV MON Miniature bantam jack
XMT MON Miniature bantam jack
QPC720 Cable requirements
Table 5 "QPC720 PRI cables and cable lengths" (page 33) lists the types of
cable used and the lengths required for external QPC720 PRI connections.
Note: No additional cabling is required for nB+D configurations. Multiple
PRIs and the D-channel are associated through software in LD 17,
prompt PRI.
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.
• Digital Link 551A
• Digital Link 551C
• Digital Link 551E
• Tellabs Model 441
• Verilink Model 551V ST
In the U.S.A., FCC Part 68 regulations require Network Channel Terminating
Equipment (for example, the NT QRY551 Channel Service Unit) installed
at of the point of connection between a system and a registered common
carrier trunk.
Echo Canceller interface
Echo Cancellers are required only with satellite transmission. The Echo
Canceller detects the length of the loop, then cancels the reflected
transmission (callers do not hear their own voices echoed).
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
Copyright © 2003-2007, Nortel Networks
.