Nortel Networks NN43001-301 manual Install the NTAK79 PRI card

Install the NTAK79 PRI card 261

The DCHI is responsible for performing the Q.921 layer 2 protocol information. It transfers layer 3 signaling information between two adjacent network switches.

The NTAK93 DCH daughterboard, when installed on the NTBK50 circuit card, is addressed in the same slot as the NTBK50.

A minimum of one NTAK93 is required for each PRI link. If more than one PRI link connects to the same end location, a single DCHI circuit card can support up to a maximum of sixteen PRI connections for the system. This allows for the support of 495 B-Channels or PRI trunks.

NTBK51 Downloadable D-Channel (DDCH) daughterboard

The NTBK51 DDCH daughterboard interfaces with the system Central Processing Unit (CPU) and mounts on the NTBK50 2.0 Mb PRI circuit card for PRI D-Channel applications.

Digital trunk cards are not supported in Media Gateway Expansions.

The DDCH is equivalent to the MSDL card on larger systems, but it only supports D-channel applications (no SDI or ESDI).

The NTBK51 DDCH daughterboard, when installed on the NTBK50 circuit card, is addressed in the same slot as the NTBK50.

A minimum of one NTBK51 is required for each PRI link. If more than one PRI link connects to the same end location, a single DDCH circuit card can support up to a maximum of 16 PRI connections for the system. This enables support for 495 B-channels or PRI trunks.

Install the NTAK79 PRI card

The steps required to install PRI are as follows:

Step Action

1Inspect the PRI card.

2Set the switches on the PRI card.

3Insert the PRI card in slots 1-9 of the Small System main cabinet, or in slots 11-19, 21-29, 31-39, 41-49 of the first, second, third, and fourth Expansion cabinets, respectively.

4Connect the cables.

—End—

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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