Juniper MX960 Hardware Manual page 458

For more information about the command, see the
CAUTION:
removing the AS MLC again, removing an AS MLC from a different slot, or
inserting an AS MLC in a different slot.
You can also verify correct AS MLC and AS MSC or AS MXC functioning by issuing the show chassis fpc
and show chassis fpc pic-status.
Figure 166: Installing an AS MLC
SEE ALSO
Preventing Electrostatic Discharge Damage to an MX960 Router
Installing an MX960 AS MSC | 422
Installing an MX960 AS MXC | 423
CLI
After the OK LED lights steadily, wait at least 30 seconds before
Explorer.
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