DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-439DATA-CHL (Data Channel)
3
Data Channel Crosstalk Test (#110)
This test verifies the integrity of the entire DATA-CHL, that is, the software, dual
port RAM, and hardware that comp oses it. However, unlike the Remote
Maintenance Loop Around Test (#109), this test only involves the sing le
DATA-CHL that is the target of the test. A loop around connection is estab lished
over the TDM Bus from the DATA-CHL back to itself. Data is looped over the
connection in each d irection, that is, the DATA-CHL is tested as both a sender of
data and a receiver of d ata. The test checks that the data received by the
DATA-CHL is the same as the data that was sent by the DATA-CHL.
Because it establishes a loop around connection from the Network Control
DATA-CHL back to itself across the TDM Bus, this test does more than just verify
the integrity of the target DATA-CHL. It also verifies the integrity of the TDM Bus
and Tone-Clock circuit pack ( by sending and rec eiving data).
If this test aborts or fails, it is impossib le to determine from this test alone whether
the target DATA-CHL is defective or if the problem lies with the TDM Bus, or
Tone-Clock circuit pack. The results of running Tests #107, #108, and #111 on the
DATA-CHL can be used to determine whether the target DATA-CHL is defective.
NOTE:
If an Error Code is encountered that recommend s that an CDR Link, System
Printer Link, PMS Log Printer, Wakeup-Log Printer Link, and/or PMS Link be
busied out, restore each b usied-out link to service ac cording to the
PRI-CDR/ SEC-CDR (PRI -CDR Li nk), SYS-PRN T, or PMS-L INK Ma intena nce
documentation, respec tively, before concluding work on the problem.
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2000
2003
2004
FAIL
(cont’d.)
If the result of Test #107 is PAS S a nd the result of T e st #108 i s P A S S, then the
target DATA-CHL is defective.
■Issue the remove data-module <ext> for the target DATA-CHL to
remove it from operation.
■Replace the Processor circuit pack at your earliest convenience.
After the Processor circuit pack has been replaced, its Time-of-Day
clock must be set using the set time command.
8. Restore any busied out CDR, Journal Printer, System P ri nter, or P MS Lin k
to service before moving on to another activity.
PASS The target DATA-CHL, Processor circuit pack, TDM Bus (TDM-BUS), and
Tone-Clock circuit pack (TONE-BD, TONE-PT, TDM-CLK) are functioning.
Connections can be established over the DATA-CHLs.
Table 3-187. TEST #109 Data Channel Remote Maintenance Loop Around Test — Continued
Error
Code
Test
Result Description/Recommendation
Continued on next page