Nortel Circuit Card Installation Manual page 366

Page 366 of 906
Testability and diagnostics
553-3001-211 Standard 3.00
NT5D97 Dual-port DTI2/PRI2 card
• Port 0 of the NTBK51AA can only be defined to work with Loop 0 of the
NT5D97 DDP2 card, and Port 1 of the NTBK51AA can only be defined
to work with Loop 1 of the NT5D97. This relationship must be reflected
when configuring a new DCH in LD 17 (in response to the DCHL
prompt, enter either 0 or 1 when specifying the loop number used by the
DCH).
• You cannot define one of the DDP2 loops for the NTBK51AA DDCH,
and the other loop for the NT6D11AF/NT5K75AA/NT5K35AA DCH
card or the NT6D80 MSDL.
• When configuring the NT5D97 DDP2 in DTI2 outgoing dial pulse mode,
a Digit Outpulsing patch is required.
The DDP2 card supports testing and maintenance functions through the
following procedures:
• Selftest 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.
August 2005