Nortel Networks NN43001-301 - Manual (Page 144)

144 NT5D12 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
Copyright © 2003-2007, Nortel Networks
.