Maintaining the Cable Management System, Cables, and Connectors

You maintain the router cables in the cable management system to ensure that fiber-optic cables have the proper bend radius and to ensure that all cables are organized and securely in place.

You maintain the Physical Interface Card (PIC) cables and connectors to ensure that they transport incoming packets from the network and transmit outgoing packets to the network.

You maintain the power cables and connectors to ensure that power is supplied to the router.

You maintain the Routing Engine external cables and connectors to ensure that you can connect external devices to the router. (See Table 70.)

Table 70: Checklist for Maintaining Cables and Connectors

Maintain Cable and Connector Tasks	Command or Action
Understanding the Cable Management System, Cables, and Connectors M5 and M10 Router Cable Management System M10i Router Cable Management System M20 Router Cable Management System M40 Router Cable Management System M40e and M160 Router Cable Management System M320 Router Cable Management System T320 Router and T640 Routing Node Cable Management System
Maintaining the PIC Cables	Use only specified cables and connectors.
Maintaining the PIC Fiber-Optic Cable	Follow all guidelines to ensure that fiber-optic cables transmit packets to and from the network.
Cleaning the Transceivers	Follow all procedures in the cleaning kit you use. See the appropriate router hardware guide and the PIC hardware guide.
Checking the PIC Port Status
Check the PIC or FPC LED Status	Check the PIC LEDs.
Display the PIC Media Type	`show chassis fpc pic-status` `show chassis pic pic-slot` `number` `fpc-slot` `number`
Maintaining the Power Cables	Use the specified cables and connectors. Turn power off to the router, then reconnect power using the replacement cables.
Maintaining Routing Engine External Cables	Turn off the power switch, if necessary. Use the specified cable and connector.
Replacing the Cable Management System	See Return the Failed Component, or follow the procedure in the appropriate router hardware guide.