Testability And Diagnostics; Cable Requirements - Nortel Communication Server 1000S Installation And Configuration Manual

ISDN Primary Rate Interface equipment overview
Table 8
NT5D97 DDP2 power requirements
Voltage
+5V
+12V
-12V
Total Power (Maximum)

Testability and diagnostics

The DDP2 card supports testing and maintenance functions through the
following procedures:
• Self test upon power up or reset
• Signalling test performed in the LD 30
• Loopback tests, self tests, and continuity tests performed by LD 60 and
LD 45
• The D-Channel (DCH, MSDL, DDCH) maintenance is supported by
LD 96.
Note: The MSDL selftest is not applicable to the NTBK51AA
D-Channel daughterboard.

Cable requirements

This section lists the types of cable used and the lengths required for internal
and external NT5D97 DDP2 connections.
Note: No additional cabling is required for nB+D configurations.
Multiple DDP2 cards and the D-channel are associated through software
in LD 17.
Source
Backplane
Backplane
Backplane
ISDN Primary Rate Interface
Current
DDP2
(without
NTBK51AA) NTBK51AA)
3A 3.8A
25mA 75mA
25mA 75mA
15.6W 20.8W
Installation and Configuration
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DDP2
(with