Maintenance 284Model 1001MC Operations Guide 11 • Troubleshooting and maintenance• rdlWith511er (remote loopback with 511 and errors)—This test functions the same way as the rdlWith511test, but it adds a 511 pattern from the BER generator that includes errors to verify that the modems candetect the errors.Note Refer to table 17 to see which 1001MC diagnostics tests are sup-ported by the NetLink modems.Running test mode diagnoticsTest 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 onthe 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 Levelrack 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 helpyou to isolate the problem.MaintenancePeriodic maintenanceConsult the rack chassis user manual for information on preventative maintenance (such as cleaning the chassisair cooling vents to remove accumulated dust).CalibrationThe Model 1001MC requires no calibration.Replacing the Model 1001MCIf 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 placethem 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 cardsfive11 five11er lal lalWith511 lalWith511er rdl rdlWith511 rdlWith511er1092ARC ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔1094ARC ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔1095RC ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔2701RC ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔2707RC ✔
