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Connecting PIC Cables to the T640 Router


The router supports PICs that use various kinds of network cable, including multimode and single-mode fiber-optic cable. For information about the type of cable used by each PIC, see the PIC guide for your router.

You connect PICs to the network by plugging in network cable. To connect cable to the PICs (see Figure 1, which shows a fiber-optic PIC):

  1. Have ready a length of the type of cable used by the PIC. For cable specifications, see Determining Transceiver Support and Specifications for M Series and T Series Routers in the T640 Core Router Interface Module Reference.
  2. If the PIC cable connector port is covered by a rubber safety plug, remove the plug.Warning

    Do not look directly into a fiber-optic transceiver or into the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cable connected to a transceiver emit laser light that can damage your eyes.


    Do not leave a fiber-optic transceiver uncovered except when inserting or removing cable. The safety cap keeps the port clean and prevents accidental exposure to laser light.

  3. Insert the cable connector into the cable connector port on the PIC faceplate.
  4. Arrange the cable in the cable management system to prevent it from dislodging or developing stress points. Secure the cable so that it is not supporting its own weight as it hangs to the floor. Place excess cable out of the way in a neatly coiled loop in the cable management system. Placing fasteners on the loop helps to maintain its shape.Caution

    Avoid bending fiber-optic cable beyond its minimum bend radius. An arc smaller than a few inches in diameter can damage the cable and cause problems that are difficult to diagnose.


    Do not let fiber-optic cable hang free from the connector. Do not allow fastened loops of cable to dangle, which stresses the cable at the fastening point.

Figure 1: Attaching a Cable to a PIC
Attaching a Cable
to a PIC