Juniper SRX5400 Hardware Manual page 139

Removing an SRX5400 Services Gateway MIC
Copyright © 2014, Juniper Networks, Inc.
The MICs are located in the MPCs installed in the front of the services gateway. A MIC
weighs less than 2 lb (0.9 kg).
To remove a MIC:
Place an electrostatic bag or antistatic mat on a flat, stable surface to receive the
1.
MIC. If the MIC connects to fiber-optic cable, have ready a rubber safety cap for each
transceiver and cable.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis.
Power off the services gateway.
3.
Label the cables connected to the MIC so that you can later reconnect each cable to
4.
the correct MIC.
Disconnect the cables from the MIC. If the MIC uses fiber-optic cable, immediately
5.
cover each transceiver and the end of each cable with a rubber safety cap.
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.
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.
Arrange the cable to prevent it from dislodging or developing stress points. Secure
6.
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: Avoid bending 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.
On the MPC, pull the ejector knob that is adjacent to the MIC you are removing away
7.
from the MPC faceplate. The ejector knob is located between the MIC and the
rotational knob that retains the MPC in the services gateway card cage. Pulling the
ejector knob unseats the MIC from the MPC and partially ejects it. See
Figure 51 on page 126.
Chapter 13: Replacing SRX5400 Services Gateway Hardware Components
125