Connecting a Device to a Management Console by Using an RJ-45 Connector | 653
Connecting a Fiber-Optic Cable | 654
Disconnecting a Fiber-Optic Cable | 655
Maintaining Fiber-Optic Cables | 656
Powering Off the Router | 659
Powering Off the AC-Powered MX2000 Router | 659
Powering Off the DC-Powered MX2000 Router | 660
Maintaining the Chassis and Components | 663
Routine Maintenance Procedures for the MX2020 Router | 663
Taking an MX2000 Host Subsystem Offline | 664
Maintaining the MX2020 Chassis FRU Power On Sequence | 666
Maintaining and Verifying the Status of the MX2020 Router Components | 667
Maintaining the MX2020 Ethernet Switch | 667
Maintaining and Verifying the MX2020 Router Version | 670
Troubleshooting Hardware
Troubleshooting Components | 675
MX2020 Troubleshooting Resources | 675
Command-Line Interface | 675
Chassis and Interface Alarm Messages | 676
Alarm Relay Contacts | 676
Craft Interface LEDs | 677
Component LEDs | 677
Troubleshooting the MX2020 Cooling System | 678
Troubleshooting the MX2020 Host Subsystems | 681
Troubleshooting the MX2020 MICs | 681
Troubleshooting a Modular Port Concentrator (MPC) | 683
Troubleshooting the MX2000 Router Power System | 686
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