Juniper MX240 Hardware Manual page 281

Copyright © 2019, Juniper Networks, Inc.
Align the rear of the MIC with the guides located at the corners of the MIC slot.
5.
Slide the MIC into the MIC slot until it is firmly seated in the chassis.
6.
CAUTION: Slide the MIC straight into the slot to avoid damaging the
components on the MIC.
Verify that the ejector levers are engaged by pushing them toward the router.
7.
If the MIC uses fiber-optic cable, remove the rubber safety cap from each transceiver
8.
and the end of each cable.
WARNING: Do not look directly into a fiber-optic transceiver or into the
ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables
connected to a transceiver emit laser light that can damage your eyes.
CAUTION: Do not leave a fiber-optic transceiver uncovered except when
you are inserting or removing cable. The safety cap keeps the port clean
and prevents accidental exposure to laser light.
Insert the appropriate cables into the cable connectors on the MIC.
9.
Arrange each cable to prevent the cable from dislodging or developing stress points.
10.
Secure the cable so that it is not supporting its own weight as it hangs to the floor.
Place excess cable out of the way in a neatly coiled loop.
CAUTION: Do not let fiber-optic cables hang free from the connector. Do
not allow the fastened loops of a cable to dangle, which stresses the cable
at the fastening point.
CAUTION: Avoid bending a 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 MIC online:
11.
Press the MIC offline/online button until the MIC
Issue the following CLI command:
Chapter 4: Maintaining, Installing and Replacing Components
OK/FAIL LED lights green.
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