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 T ests: Descripti ons
and Error Codes
Always investigate tests in the order p resented in the table below when
inspecting errors in the sys tem. By clearing error cod es associated with the
PDATA Port Local Loop-Around Test
for example, you may also clear er rors
generated from other tests in the testing sequence.
LAPD Connectivity Test (#558)
This test is destructive.
This is a connectivity test which c hecks if a specific PDATA port is capab le 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 tes t pac ket f rom the PKTINT to
the PDATA port and it will exp ect to receive a reply from the PDATA port. Failure
of this test may indicate an on-bo ard fault associated with the p ort hardware on
the PDATA circuit pack.
Figure 9-70. Configuration for LAPD Connectivity Test
Order of Investigation Short Test
Sequence Long Test
Sequence D/ND1
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
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