Juniper MX480, Руководство по оборудованию

Страница: 301 / 420

8.
Lift the MPC into place, and carefully align the sides of the MPC with the guides inside
the card cage.
CAUTION: When the MPC is out of the chassis, do not hold it by the ejector
handles, bus bars, or edge connectors. They cannot support its weight.
9.
Slide the MPC all the way into the card cage until you feel resistance.
10.
Grasp both ejector handles, and rotate them clockwise simultaneously until the MPC
is fully seated.
11.
If any of the MICs on the MPC connect to fiber-optic cable, remove the rubber safety
cap from each transceiver and 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.
12.
Insert the appropriate cable into the cable connector ports on each MIC on the MPC.
Secure the cables so that they are not supporting their own weight. Place excess cable
out of the way in a neatly coiled loop, using the cable management system. Placing
fasteners on a loop helps to maintain its shape.
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.
13.
Use one of the following methods to bring the MPC online:
• Press and hold the corresponding MPC online button on the craft interface until the
green
OK/FAIL LED next to the button lights steadily, in about 5 seconds.
• Issue the following CLI command:
user@host> request chassis fpc slot slot-number online
For more information about the command, see the CLI Explorer .
301 Copyright © 2019, Juniper Networks, Inc.
Chapter 4: Maintaining Components