Juniper M120 Hardware Manual page 243

Copyright © 2018, Juniper Networks, Inc.
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.
Insert the appropriate cable into the cable connector ports on each PIC on the FPC.
12.
Secure the cables so that they are not supporting their own weight. Place excess cable
out of the way in a neatly coiled loop, using the cable management system. Placing
fasteners on a loop helps to maintain its shape.
CAUTION: 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.
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.
Use one of the following methods to bring the FPC online:
13.
Press and hold the FPC online/offline button until the green
the button lights steadily, in about 5 seconds. The LEDs and online/offline button
for each FPC are located directly above it on the craft interface.
Issue the CLI command:
user@host>request chassis fpc slot slot-number online
For more information about the command, see the
CAUTION: After the
removing the FPC again, removing an FPC from a different slot, or inserting
an FPC in a different slot.
You can also verify correct FPC and PIC functioning by issuing the
show chassis fpc pic-status
on page 270 and "Maintaining M120 PICs and PIC Cables" on page
Chapter 27: Replacing Line Card Components
LED lights steadily, wait at least 30 seconds before
OK
commands described in "Maintaining M120 FPCs and CFPCs"
LED next to
STATUS
.
CLI Explorer
show chassis fpc
275.
and
217