Juniper MX240 Hardware Manual page 331

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 FPC online:
Press and hold the FPC online/offline button until the green OK LED next to 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 following CLI command:
user@host>request chassis fpc slot slot-number online
For more information about the command, see the
CAUTION:
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 and show chassis fpc
pic-status commands described in
on page 352.
Figure 115: Installing an FPC
SEE ALSO
Avoid bending a fiber-optic cable beyond its minimum bend radius.
After the OK LED lights steadily, wait at least 30 seconds before
"Maintaining MX240 FPCs" on page 324
SC B
SC B
CLI Explorer.
and "Maintaining MX240 PICs"
335