Hardware description, Cables, 0 mb pri cards – Nortel Networks NN43001-301 User Manual
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2.0 Mb PRI implementation
Circuit card
Description
NTAK79
2.0 Mb PRI circuit card.
Supports an onboard clock controller and an
onboard D-channel handler interface.
NTAK20
Clock-controller daughterboard. The system
supports only one active clock controller per
system or IP expansion cabinet.
Note: Every cabinet or Media Gateway that
contains a digital trunk must contain a clock
controller.
Connects to the NTBK50 PRI card.
NTAK93
D-channel-handler interface (DCHI)
daughterboard.
Connects to the NTBK50 PRI card.
NTBK51
Downloadable D-channel daughterboard
(DDCH).
Connects to the NTBK50 PRI card.
Cables
One of the following cables is required for a PRI connection:
•
CEPT Cable - NTBK05DA (120
1
/
2
twisted pair—6.15 m length), or
•
CEPT Cable - NTBK05CA (75
1
/
2
Ensure the document title is correct. m
length)
Hardware description
2.0 Mb PRI cards
Two PRI cards are available on the system:
•
NTAK79 2.0 Mb PRI card
•
NTBK50 2.0 Mb PRI card
The difference between the two PRI cards is that the NTBK50, when
equipped with the NTBK51 D-channel daughterboard, can download
software onto the card. This feature is based on the MSDL platform and
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
.