Juniper Networks EX8208 manual Maintaining Line Card Cables in EX8200 Switches

Chapter 14: Routine Maintenance

Maintaining Line Card Cables in EX8200 Switches

Components in the line cards are fragile. To extend the lives of your line card cables and to avoid problems that can result from cable damage, follow these procedures:

To maintain line card cables in EX8200 switches:

•Place excess cable out of the way. Do not allow fastened loops of cable to dangle from the connector. Placing fasteners on the loops helps retain their shape.

•Keep the cable connections clean and free of dust and other particles, which can cause drops in the received power level. Always inspect cables and clean them if necessary before connecting an interface.

•Label both ends of line card cables to identify them.

Related Topics • Handling and Storing Line Cards in EX8200 Switches on page 227

•Maintaining Fiber-Optic Cables in EX Series Switches on page 231

•8-port SFP+ Line Card in an EX8200 Switch on page 30

•40-port SFP+ Line Card in an EX8200 Switch on page 31

•48-port SFP Line Card in an EX8200 Switch on page 33

•48-portRJ-45 Line Card in an EX8200 Switch on page 34

Maintaining Fiber-Optic Cables in EX Series Switches

Fiber-optic cables connect to optical transceivers that are installed in EX Series switches.

To maintain fiber-optic cables:

•When you unplug a fiber-optic cable from a transceiver, place rubber safety caps over the transceiver and on the end of the cable.

•Anchor fiber-optic cables to avoid stress on the connectors. When attaching a fiber-optic cable to a transceiver, be sure to secure the fiber-optic cable so that it is not supporting its own weight as it hangs to the floor. Never let a fiber-optic cable hang free from the connector.

•Avoid bending fiber-optic cables beyond their minimum bend radius. Bending fiber-optic cables into arcs smaller than a few inches in diameter can damage the cables and cause problems that are difficult to diagnose.

•Frequent plugging and unplugging of fiber-optic cables in and out of optical instruments can damage the instruments, which are expensive to repair. Attach a short fiber extension to the optical equipment. Any wear and tear due to frequent plugging and

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