Nortel Networks NN43001-301 manual Remove NTBK51 Ddch from NT5D97 dual-port DTI2/PRI2 card

92NTBK51 DDCH installation and removal

The DDCH can be mounted on any NT5D97 DDP2 card. Set the address for the DDCH (see the switch settings section to set the address). If a DDCH is present on a DDP2 card then an external D-channel should not be connected to J6. If a DDCH is present the LED "DDCH" lights up.

CAUTION

The static discharge bracelet located inside the cabinet must be worn before handling circuit cards. Failure to wear the bracelet can result in damage to the circuit cards.

Procedure 5

Install the NTBK51 on the NT5D97 dual-port DTI2/PRI2 card

Step Action

1Unpack and inspect the DDCH daughterboard.

The DDCH comes with four standoffs so that it can be mounted onto the NT5D97. These are easily pushed into four corresponding mounting holes on the DDP2.

2Mount the DDCH so that it mates with P1 and P2 on the NT5D97 motherboard.

Note: P 1 and P 2 contain (40+30) sockets as the NTBK51AA respective pins (40+30), which enables the technician to "mate" them. This is applicable for the NT5D97AA/AB. The NT5D97AD has 44+34 sockets. In order to place the NTBK51AA (40+30 pins), place the NTBK51AA inside P1 and P2. Start from their lower edge. (The remaining "free" sockets (4+4) in P1 and P2 are in their upper edge.)

3Set the DDP2 ENB/DIS faceplate switch to Enable (ON). The DDCH LED then flashes three times.

—End—

Remove NTBK51 DDCH from NT5D97 dual-port DTI2/PRI2 card

Removal procedures for the NTBK51 DDCH are the same for all Large Systems.

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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