To install a DPC (see Figure 92 on page 236):
1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
2. Place the DPC on an antistatic mat, or remove it from its electrostatic bag.
3. Identify the slot on the router where it will be installed.
4. Verify that each fiber-optic transceiver is covered with a rubber safety cap. If it does
not, cover the transceiver with a safety cap.
5. Orient the DPC so that the faceplate faces youvertically.
6. Lift the DPC into place, and carefully align the sides of the DPC with the guides inside
the card cage.
7. Slide the DPC all the way into the card cage until you feel resistance.
8. Grasp both ejector handles, and rotate them clockwise simultaneously until the DPC
is fully seated.
9. Remove the rubber safety cap from each fiber-optic 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 cable
connected to a transceiver emit laser light that can damage your eyes.
10. Insert the cables into the cable connector ports on each DPC (see
Figure 93 on page 237).
11. Arrange the cable in the standard or extended cable manager 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.
CAUTION: Do not let fiber-optic cable hang free from the connector. Do
not allow fastened loops of cable to dangle, which stresses the cable at
the fastening point.
Copyright © 2017, Juniper Networks, Inc.234
MX240 3D Universal Edge Router Hardware Guide
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