Nortel Networks 1000 User Manual
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NTRB21 DTI/PRI/DCH TMDI card
You can install this card in slots 1 through 4 in the Media Gateway. The
card is not supported in the Media Gateway Expansion. Up to four digital
trunks are supported in each Media Gateway.
Note 1:
For CISPR B group cabinets, the active Clock Controller
(NTAK20) can only occupy slots 1-3. For FCC and/or CISPR A group
cabinets, this limitation does not exist - the Clock Controller can occupy
any available slot 1-9.
Note 2:
On non-ECM system cabinets, the NTAK20 can be placed in
slots 1-9. On cabinets NTAK11Dx and NTAK11Fx, the active NTAK20
must be placed in slots 1-3 (slots 4-10 cannot be used).
ATTENTION
IMPORTANT!
Each Media Gateway that has a digital trunk must use a clock controller clocked
to an external reference clock.
The NTRB21 TMDI (DTI/PRI/DCH) card is required to implement PRI on
the Meridian 1 Option 11C system. It is supported in the Main and IP
expansion cabinets.
The TMDI feature introduces the software changes required for an Option
11C system to support the new TDMI pack. These changes include the
introduction of a new prompt to replace a function that was handled by
a dip switch on the NTAK09, as well as an extra loadware application
to handle Layer 1, and changes to make the existing loadware files into
32 bit format instead of the original 16 bit format. To provide CEMUX
communication with the card, changes are also required to create an I/O
entry for the card. In addition the NTRB21 has a built-in downloadable
D-channel.
This card requires that the Option 11C be equipped with at least Release
24 software.
This card replaces the NTAK09 described in
. This feature does not affect the NTAK09 functionality,
configuration, or maintenance in any way. Aside from changes to the
configuration and maintenance of the pack, there are no other changes
seen by the users, and call processing is not affected.
The NTRB21 (DTI/PRI/DCH) TMDI digital trunk card is a 1.5 Mb DTI or
PRI interface to the CS 1000 system. The NTRB21 card has a built-in
downloadable D-channel.
The TMDI feature introduces the software changes required for a CS 1000
system to support the new TDMI pack. The software changes include:
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.