Juniper MX240 Hardware Manual page 347

WARNING:
of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables connected
to a transceiver emit laser light that can damage your eyes.
12. Insert the appropriate cable into the cable connector ports on each MIC on the MPC. Secure the cables
so that they are not supporting their own weight. Placing fasteners on a loop helps to maintain its
shape.
CAUTION:
allow the fastened loops of a cable to dangle, which stresses the cable at the
fastening point.
CAUTION:
An arc smaller than a few inches in diameter can damage the cable and cause
problems that are difficult to diagnose.
13. Use one of the following methods to bring the MPC online:
Press and hold the corresponding MPC online button on the craft interface until the green OK/FAIL
LED next to the button lights steadily, in about 5 seconds.
Issue the following CLI command:
user@host>request chassis fpc slot slot-number online
For more information about the command, see the
CAUTION:
before removing the MPC again, removing an MPC from a different slot, or
inserting an MPC in a different slot.
You can also verify correct MPC and MIC functioning by issuing the show chassis fpc and show chassis fpc
pic-status commands described in
on page 341.
Do not look directly into a fiber-optic transceiver or into the ends
Do not let fiber-optic cables hang free from the connector. Do not
Avoid bending a fiber-optic cable beyond its minimum bend radius.
CLI
After the OK/FAIL LED lights steadily, wait at least 30 seconds
"Maintaining MX240 MPCs" on page 345
Explorer.
and "Maintaining MX240 MICs"
351