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Maintenance 284
Model 1001MC Operations Guide 11 • Troubleshooting and maintenance
• rdlWith511er (remote loopback with 511 and errors)—This test functions the same way as the rdlWith511
test, but it adds a 511 pattern from the BER generator that includes errors to verify that the modems can
detect the errors.
Note Refer to table 17 to see which 1001MC diagnostics tests are sup-
ported by the NetLink modems.
Running test mode diagnotics
Test mode diagnostics can be performed as follows:
• On the entire system—To test the entire system, go to the System Level Information page and locate the Sys-
tem Overview section. Select the desired test from the
Apply System Test Mode pop-up menu, then click on
the
Apply Test Mode button to initiate the test.
• On an individual rack—To test a rack, go to the System Level Information page and locate the Top Level
rack section for the rack you will be testing. Select the desired test from the
Apply Test Mode pop-up menu,
then click on the
Apply Test Mode button to initiate the test.
Note An analyzer (ParaScope 3000 WAN Analyzer or equivalent) will help
you to isolate the problem.
Maintenance
Periodic maintenance
Consult the rack chassis user manual for information on preventative maintenance (such as cleaning the chassis
air cooling vents to remove accumulated dust).
Calibration
The Model 1001MC requires no calibration.
Replacing the Model 1001MC
If you isolate a problem to the Model 1001MC, replace the front and rear cards as follows.
1. Remove the replacement Model 1001MC front and rear cards from their shipping container and place
them near the chassis in which the malfunctioning Model 1001MC is located.
Note The Model 1001MC is hot-swappable, so it is not necessary to deac-
tivate the rack chassis before replacing the cards.
Table 17. Model 1001MC test mode diagnostics supported by NetLink modem rack cards
five11 five11er lal lalWith511 lalWith511er rdl rdlWith511 rdlWith511er
1092ARC ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
1094ARC ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
1095RC ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
2701RC ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
2707RC ✔