Action On a regular basis:
• Check the LEDs on PIC faceplates. A PIC LED lit green indicates the PIC is functioning
normally. The meaning of the LED states differs for various PICs. For more information,
see the interface module reference for your device. If the FPC that houses the PIC
detects a PIC failure, the FPC generates an alarm message to be sent to the Routing
Engine.
• Issue the CLI show chassis fpc pic-status command. The PIC slots in an FPC are
numbered from 0 through 3, top to bottom:
user@host> show chassis fpc pic-status
Slot 0 Online E-FPC Type 3
PIC 0 Online 1x 10GE(LAN),DWDM
PIC 2 Present 1x OC-192 SONET XFP- Hardware Error
PIC 3 Online 1x 10GE(LAN),XENPAK
Slot 2 Online E2-FPC Type 2
PIC 0 Online 1x OC-48 SONET, SMIR
PIC 1 Online 2x OC-12 ATM-II IQ, MM
PIC 2 Online 8x 1GE(LAN), IQ2
Slot 3 Online FPC Type 3
PIC 0 Online 1x 10GE(LAN),XENPAK
PIC 1 Online 1x 10GE(LAN),XENPAK
PIC 2 Online 8x 1GE(TYPE3), IQ2
PIC 3 Online 8x 1GE(TYPE3), IQ2
Slot 4 Online FPC Type 4
PIC 0 Online 4x OC-192 SONET XFP
Slot 6 Online FPC Type 3
PIC 0 Online 4x OC-48 SONET
PIC 1 Online 1x Tunnel
Slot 7 Online FPC Type 4
PIC 0 Online 1x OC-768 SONET SR
For further description of the output from the command, see show chassis fpc.
• Use the cable management system to support cables and prevent cables from
dislodging or developing stress points.
• Place excess cable out of the way in the cable management system. Do not allow
fastened loops of cable to dangle from the connector or cable management system,
because this stresses the cable at the fastening point. Putting fasteners on the loops
helps to maintain their shape.
• Keep the cable connections clean and free of dust and other particles, which can cause
drops in the received power level. Always inspect cables and clean them if necessary
before connecting an interface.
• Label both ends of PIC cables to identify them.
The following guidelines apply specifically to fiber-optic cable:
• When you unplug a fiber-optic cable from a PIC, always place a rubber safety plug
over the transceiver on the PIC faceplate and on the end of the cable.
• Anchor fiber-optic cable to avoid stress on the connectors. When attaching fiber to a
PIC, be sure to secure the fiber so it is not supporting its own weight as it hangs to the
floor. Never let fiber-optic cable hang free from the connector.
455Copyright © 2017, Juniper Networks, Inc.
Chapter 32: Maintaining Components
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