Nortel Networks NN43001-301 manual QPC720 Cable requirements, Faceplate destination Type

32ISDN 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

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