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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-736ISDN-SGR (ISDN-PRI Signaling Group)
10
Primary Signaling Link Hardware Check (#636)
The ISDN-PRI Signaling Link Port itself depends on the health of the DS1/UDS1
Interface circuit pack on which it resides. This test will fail if there are problems
with either the ISDN-PRI Primary D-channel port or the DS1/UDS1 circuit pack.
The ISDN-PRI Primary D-channel also depends on the health of either the
Processor Interface Link or the Processor Control circuit pack providing
connectivity to the DS1/UDS1 circuit pack.
If there are problems with the ISDN-PRI Signaling Link, also investigate the
DS1/UDS1 circuit pack (DS1-BD/UDS1-BD) and the Processor Interface Link or
Packet Control (PI-LINK/PACCON) dependent upon which is used
Figure 10-52. Primary Signaling Link Hardware Check (Test #636)
1. D = Destructive; ND = Nondestructive
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
Primary Signaling Link Hardware Check (#636) X X ND
Secondary Signaling Link Hardware Check (#639) X X ND
Layer 2 Query Test (#647) X X ND
Remote Layer 3 Query Test (#637) X X ND
PI
TDM
BUS
DS1/UDS1
TO FAR-END
SWITCH HARDWARE
(TN765)
CIRCUIT
PACK CIRCUIT
PACK
INTERFACE