DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1154PDATA-PT (Packet Data Line Port)
9
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order presented in the table below when
inspecting errors in the system. By clearing error codes associated with the
PDATA Port Local Loop-Around Test
for example, you may also clear errors
generated from other tests in the testing sequence.
LAPD Connectivity Test (#558)
This test is destructive
.
This is a connectivity test which checks if a specific PDATA port is capable of
establishing a Level 2 LAPD link. The SPE will assign a LAPD bearer link between
the SPE Packet Bus interface (i.e. the Packet Interface, also called PKTINT,
TN1655) and the PDATA port. The SPE will send a test packet from the PKTINT to
the PDATA port and it will expect to receive a reply from the PDATA port. Failure
of this test may indicate an on-board fault associated with the port hardware on
the PDATA circuit pack.
Figure 9-70. Configuration for LAPD Connectivity Test
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1. D = Destructive; ND = Nondestructive
PDATA Port Local Loop-Around Test (#602) X X ND
LAPD Connectivity Test (#558) X X D
System Port Connectivity Test (#603) X X D
SPE
Packet Bus
EIA
P
D
A
T
A
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P
K
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N
T
