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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Installing a DEFINITY ECS ATM-PNC
3-28Synchronization Installation and Testing
3
RLB loopback procedure .
To start the RLB loopback testing at the 316X CSU or
DSU/CSU, use the procedures in Table 3-15
.
4. Continue Press the button under “DLB.”
Test Started displays. The 316X is now in
DTE loopback.
5. Test the circuit
pack
test board
UUCSS
At the DEFINITY management terminal.
If any one of Test 138 through 145 fails, follow
the repair procedures listed in DEFINITY ECS
Maintenance for R8r.
6. Run error
report
list
measurements
ds1 summary
UUCSS
Wait 15 minutes and verify that the DS1 circuit
pack is free of any errors.
Use Table 3-6
to interpret the periodic list
measurements report.
7. Terminate the
DTE loopback
test
Press the double-up arrow button.
8. Go through the
readout steps
Press the button under “test.”
9. Continue Press the button under “lpbk.”
10. Continue Press the button under “abort.”
11. Continue Press the button under “all.”
12. Continue test
procedure
If all tests pass, and the splitter, cabling, and
316X CSU or DSU/CSU are working properly,
go to the ‘‘RLB loopback procedure’’ on page
3-28.
Table 3-15. RLB loopback testing for the 316X DSU/CSU
√ Step Action Command Description
1. Start the test. Press the double-up arrow button.
2. Go through the
readout steps
Press the button under “Test.”
3. Continue Press the button under “Lpbk.”
Continued on next page
Table 3-14. DTE loopback testing for the 316X DSU/CSU — Continued
√ Step Action Command Description
Continued on next page