276Chapter 11 Troubleshooting and maintenanceChapter contentsIntroduction ........................................................................................................................................................277Troubleshooting the 1001MC rack card..............................................................................................................277Troubleshooting network malfunctions ...............................................................................................................278Checking 1001MC web pages for warnings or errors ....................................................................................278Using the System Log to check for network problems ...................................................................................2821001MC test mode diagnostics ...........................................................................................................................282Running test mode diagnotics .......................................................................................................................284Maintenance........................................................................................................................................................284Periodic maintenance ....................................................................................................................................284Calibration ....................................................................................................................................................284Replacing the Model 1001MC .....................................................................................................................284