M160 Internet Router Hardware Guide
4.
Use one of the following methods to take the PIC offline:
Press and hold the PIC offline button until its failure indicator LED lights,
which usually takes about 5 seconds. The failure LED is usually red; for
more information, see the
M160 Internet Router PIC Guide
. For the PICs
that install on an FPC1, the offline button for each PIC is next to it on the
FPC card carrier. For the PICs that install on an FPC2, the offline button is
on the PIC faceplate. See Figure 6.
Issue the following CLI command:
user@host>request chassis pic fpc-slot
fpc-slot
pic-slot
pic-slot
offline
For more information about the command, see the
JUNOS Protocols, Class of
Service, and System Basics Command Reference
.
5.
Disconnect the cables from the PIC. If the PIC uses fiber-optic cable,
immediately cover each transceiver and the end of each cable with a rubber
safety cap.
WARNING:
Do not look directly into the ends of fiber-optic cables or into the
transceivers on the interface faceplate. Single-mode fiber-optic cable and the
interfaces that use it (such as ATM and SONET/SDH interfaces) 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.
6.
Arrange the cable in the cable management system 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 in the cable management system. Placing fasteners
on the loop helps to maintain its shape.
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.
7.
Unscrew the thumbscrews at the top and bottom of the PIC faceplate
simultaneously and at about the same rate (unscrewing the two screws
180
Replacing Packet Forwarding Engine Components
Summary of Contents for Internet Router M160
Page 12: ...M160 Internet Router Hardware Guide xii Table of Contents ...
Page 16: ...M160 Internet Router Hardware Guide xvi List of Figures ...
Page 18: ...M160 Internet Router Hardware Guide xviii List of Tables ...
Page 24: ...M160 Internet Router Hardware Guide xxiv Requesting Support ...
Page 26: ...2 Product Overview ...
Page 30: ...M160 Internet Router Hardware Guide 6 Safety Requirements Warnings and Guidelines ...
Page 66: ...M160 Internet Router Hardware Guide 42 Cable Management System ...
Page 80: ...M160 Internet Router Hardware Guide 56 Routing Engine Architecture ...
Page 82: ...58 Initial Installation ...
Page 104: ...M160 Internet Router Hardware Guide 80 Unpacking the Router ...
Page 148: ...M160 Internet Router Hardware Guide 124 Configuring the JUNOS Internet Software ...
Page 150: ...126 Hardware Maintenance Replacement and Troubleshooting Procedures ...
Page 242: ...M160 Internet Router Hardware Guide 218 Troubleshooting the Power System ...
Page 244: ...220 Appendixes ...
Page 292: ...M160 Internet Router Hardware Guide 268 Packing Components for Shipment ...
Page 301: ...Part 5 Index Index 277 ...
Page 302: ...278 Index ...