Testing The Ddl Card - Nortel DMS-100 Series Maintenance Manual

The signaling processor (SP) checks the received message against the
transmitted message. If the two messages are not identical, the mismatch
indicates a fault in the SLC-96 card.
The DS-1 board diagnostic is part of the
company personnel issue this command from the MAP terminal. For this
diagnostic to run correctly, the following diagnostics must first pass:
1 DS-1 diagnostic
2 time switch diagnostic
3 A/B-DDL message card diagnostic
4 message-tones card diagnostic
This test command is important because operating company personnel can
issue the subtest command at the MAP terminal. Operating company
personnel can run the DS-1 board diagnostic alone.
If the diagnostic fails, a failure message like the one in the following
example appears:
SMS 0 Unit 1
Fail message received from PM
Site Flr
HOST 00
The diagnostic involves the following hardware components:
the NT6X85 DS-1 interface card
the NT6X86 A/B-DDL message card
the NT6X44 time switch card
the NT6X69 message card.

Testing the DDL card

To run a test on the DDL card with the SMS A/B-board diagnostics feature,
operating company personnel perform the following actions. Operating
company personnel post an SMS and issue the
command includes SMS A/B-DDL diagnostics as part of the routine of the
command. A standard failure message for the A/B-DDL message card
diagnostic failure appears in the following example:
SMS 0 Unit 1
Fail Message received from PM
Site Flr
HOST 00
Tst Failed,
RPos Bay_Id Shf
A00 SME 000 14
TST Failed,
Rpos Bay_Id Shf
00 SME 000 14
DMS-100 Family SMS Maintenance Manual XPM10 and up
Trouble isolation and correction 9-43
command. Operating
>TST
SMS DS1 Test
Description
SMS:00
command. The
>TST
SMS MSG Test: 51
Description Slot
SMS:000 :13
Slot EqPEC
:13 6X85
>TST
EqPEC
6X86