Table of Contents
Table of Contents
! xv
Chapter 19 Monitoring the Cooling System 251
Understanding the Cooling System ..............................................................252
M5 and M10 Router Cooling Systems ....................................................253
M7i Router Cooling System ...................................................................253
M10i Router Cooling System .................................................................254
M20 Router Cooling System ..................................................................255
M40 Router Cooling System ..................................................................256
M40e and M160 Router Cooling Systems ..............................................259
M320 Router Cooling System ................................................................261
T320 Router and T640 Routing Node Cooling Systems..........................263
Checking the Cooling System Status ............................................................267
Checking the Cooling System Alarms...........................................................269
Check the Alarm Indicators on the Craft Interface .................................270
Display Current Cooling System Alarms ................................................270
Display Cooling System Error Messages in the System Log File .............271
Maintaining the Air Filter .............................................................................272
Verifying a Fan Failure .................................................................................272
Verifying an Impeller Failure........................................................................273
Replacing a Cooling System Component......................................................273
Chapter 20 Maintaining the Cable Management System, Cables, and
Connectors 275
Understanding the Cable Management System, Cables, and Connectors .....276
M5 and M10 Router Cable Management System ...................................277
M10i Router Cable Management System ...............................................277
M20 Router Cable Management System ................................................278
M40 Router Cable Management System ................................................279
M40e and M160 Router Cable Management System .............................280
M320 Router Cable Management System ..............................................280
T320 Router and T640 Routing Node Cable Management System.........281
Maintaining the PIC Cables ..........................................................................281
Maintaining the PIC Fiber-Optic Cable .........................................................282
Cleaning the Transceivers ............................................................................282
Checking the PIC Port Status........................................................................283
Check the PIC or FPC LED Status...........................................................283
Display the PIC Media Type...................................................................284
Maintaining the Power Cables......................................................................285
Maintaining Routing Engine External Cables................................................285
Replacing the Cable Management System....................................................285
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