The failure LED is usually red; for more information, see the M7i Multiservice Edge
Router Interface Module Reference.
3. Unplug the cable from the cable connector port. If the interface uses fiber-optic cable,
immediately cover each transceiver and the end of each cable with a rubber safety
cap.
4. Arrange the cable to prevent it from dislodging or developing stress points. 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. Placing fasteners on the loop helps
to maintain its shape.
See Also M7i Flexible PIC Concentrators (FPCs) Description on page 43•
• M7i PICs Description on page 46
• Installing an M7i FIC or PIC Cable on page 164
• Maintaining the M7i FIC and FIC Cables and PICs and PIC Cables on page 192
• Troubleshooting the M7i FIC or PICs on page 205
Installing an M7i FIC or PIC Cable
WARNING: Do not look directly intotransceivers or into the ends of fiber-optic
cables connected to a transceiver. Fiber-optic transceivers emit laser light
that can damage your eyes.
CAUTION:
When handling fiber-optic transceivers and fiber-optic cable, observe the
following precautions:
•
Do not leave a fiber-optic transceiver uncovered except when inserting or
removing cable. The safety cap keeps the port clean and prevents
accidental exposure to laser light.
•
Do not bend 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.
•
Do not let fiber-optic cable hang free from the connector. Do not allow
fastened loopsofcable todangle, which stresses the cableat the fastening
point.
Copyright © 2019, Juniper Networks, Inc.164
M7i Multiservice Edge Router Hardware Guide
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