Owner's manual

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954 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 “NTAK09 1.5 Mb DTI/PRI

card” (page 757). 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