Replacing A T640 Fpc; Removing A T640 Fpc - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide

Replacing a T640 FPC

288
Replacing a T640 SFP on page 301
Replacing a T640 XENPAK Module on page 304
The FPCs are hot-insertable and hot-removable. When you remove an FPC, the router
continues to function, although the PIC interfaces installed on the FPC being removed
no longer function.
The router holds up to eight FPCs, which are installed vertically in the front of the router.
An empty FPC weighs approximately 25 lb (11.3 kg) and a fully configured FPC can weigh
up to 32 lb (14.5 kg).
Removing a T640 FPC on page 288
1.
Installing a T640 FPC on page 290
2.

Removing a T640 FPC

To remove an FPC (see Figure 165 on page
Have ready a replacement FPC or FPC blank panel and an antistatic mat for the FPC.
1.
Also have ready rubber safety caps for each PIC using an optical interface on the FPC
that you are removing.
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.
Label the cables connected to each PIC on the FPC so that you can later reconnect
3.
the cables to the correct PICs.
Use one of the following methods to take the FPC offline:
4.
Press and hold the FPC online/offline button. The green OK LED next to the button
begins to blink. Hold the button down until the LED goes out. The LEDs and
online/offline button for each FPC are located directly above it on the craft interface.
Issue the CLI command:
user@host>request chassis fpc slot slot-number offline
For more information about the command, see request chassis fpc.
Disconnect the cables from the PICs installed in the FPC. Immediately cover each
5.
fiber-optic transceiver and the end of each cable with a rubber safety cap. Arrange
the disconnected cables in the cable management system, to prevent the cables from
developing stress points.
WARNING: Do not look directly into the ends of fiber-optic cables or into
the transceivers on the PIC faceplate. Fiber-optic transceivers and cable
connected to transceivers emit laser light that can damage your eyes.
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