Juniper Internet Router M160 Hardware Manual page 207

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 PIC online:
8.
Press and hold the PIC offline button until the status LED on the PIC
faceplate indicates normal functioning, which usually takes about
5 seconds. The LED is usually green; for more information, see the M160
Internet Router PIC Guide. For the PICs that install on an FPC1, the offline
button for each PIC is next to it on the FPC card carrier. For the PICs that
install on an FPC2, the offline button is on the PIC faceplate. See Figure 6.
Issue the following CLI command:
user@host>request chassis pic fpc-slot fpc-slot pic-slot pic-slot
online
For more information about the command, see the JUNOS Protocols, Class of
Service, and System Basics Command Reference.
The normal functioning indicator LED confirms that the PIC is online. You
can also verify correct PIC functioning by issuing the
command described in "Maintaining PICs and PIC Cables" on page 134.
Replacing Hardware Components
Replacing Packet Forwarding Engine Components
show chassis fpc pic-status
183