Replacing A T4000 Pic; Removing A T4000 Pic - Juniper T4000 Hardware Manual

Replacing a T4000 PIC

Removing a T4000 PIC

Copyright © 2013, Juniper Networks, Inc.
Removing a T4000 PIC on page 253
1.
Installing a T4000 PIC on page 255
2.
PICs are hot-insertable and hot-removable. When you remove a PIC, the router continues
to function, although the PIC interfaces being removed no longer function.
The PICs are located in the FPCs installed in the front of the router. A PIC weighs
approximately 2 lb (0.9 kg).
To remove a PIC (see Figure 112 on page
Place an electrostatic bag or antistatic mat on a flat, stable surface to receive the
1.
PIC. If the PIC 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.
Use one of the following methods to take the PIC offline:
3.
Issue the following CLI command:
user@host> request chassis pic fpc-slot fpc-slot pic-slot pic-slot offline
Press and hold the online/offline button until the status LED on the PIC goes out
(about 5 seconds). The label for the status LED varies for each PIC. See the
Interface Module Reference
For a Type 4 or Type 5 PIC, use a narrow-ended tool that fits inside the opening that
leads to the button.
Label the cables connected to the PIC so that you can later reconnect each cable to
4.
the correct PIC.
Disconnect the cables from the PIC. If the PIC 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
inserting or removing cable. The safety cap keeps the port clean and
prevents accidental exposure to laser light.
Arrange the cable in the cable management system to prevent it from dislodging or
6.
developing stress points. Secure the cable so that it is not supporting its own weight
Chapter 19: Replacing T4000 Router Hardware Components
255):
for more information about the PIC LEDs.
T4000
253