Nortel Networks NN43001-301 manual Dti Pri

144NT5D12 Dual-port DTI/PRI card installation

Port definitions

Since the NT5D12 card is dual-card, it equips two ports. These ports are defined in the following combinations:

Port 0	Port 1
DTI	DTI
DTI	PRI
PRI	DTI
PRI	PRI
DTI	Not configured
PRI	Not configured
Not configured	PRI
Not configured	DTI

Scenarios for replacement of a digital trunk card (QPC720/QPC472) by a DDP card

The following discussion describes possible scenarios when replacing a digital trunk QPC720 PRI card or QPC472 DTI card configuration with a NT5D12 DDP card configuration.

Case 1 - The two ports of a QPC414 network card are connected to two digital trunks.

In this case, the QPC414 and the two digital trunks are replaced by a single DDP card, which is plugged into the CE shelf in the QPC414 slot.

Case 2 - One port of the QPC414 card is connected to a digital trunk, and the second is connected to a peripheral buffer. Both cards are in the network loop location.

In this case, the QPC414 should not be removed. The digital trunk is removed and the DDP card is plugged into one of the two empty slots.

Case 3 - The CE shelf is full, one port of a QPC414 network card is connected to a digital trunk, and the second is connected to a peripheral buffer. This arrangement is repeated for another QPC414. The digital trunks are located in a shelf that provides only power.

In this case, the peripheral buffers will have to be reassigned, so that each pair of buffers will use both ports of the same QPC414 card. The other QPC414 card can then be replaced by the NT5D12 DDP.

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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