Maintaining M120 Pics And Pic Cables - Juniper Networks Hardware Manual

M120 Multiservice Edge Router Hardware Guide
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Maintaining M120 PICs and PIC Cables

Purpose
Action
112
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If you must insert the FPC into a bag by yourself, first lay the FPC horizontally on a flat,
stable surface, component-side up. Orient the FPC with the faceplate facing you. Carefully
insert the FPC connector edge into the opening of the bag, and pull the bag toward you
to cover the FPC.
Never stack an FPC under or on top of any other component. Never lay an FPC
component-side down.
M120 Flexible PIC Concentrators (FPCs) Overview on page 9
Replacing an M120 FPC on page 152
Holding an M120 FPC on page 107
For optimum router performance, verify the condition of the PICs and PIC cables.
On a regular basis:
Check the LEDs on PIC faceplates. Most PIC faceplates have an LED labeled
Some PICs have additional LEDs, often one per port. The meaning of the LED states
differs for various PICs. For more information, see the M120 PIC Guide. 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
numbered from through
0
user@host> show chassis fpc pic-status
Slot 2 Online
PIC 2 Present
PIC 3 Online
Slot 3 Online
PIC 0 Online
PIC 1 Present
PIC 2 Online
PIC 3 Present
Slot 4 Online
Slot 5 Online
PIC 0 Online
PIC 2 Online
For further description of the output from the command, see the Junos OS System
Basics and Services Command Reference.
Use the cable management system (shown in Figure 19 on page 34) 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.
command. The PIC slots in an FPC are
, top to bottom:
3
M120 FPC Type 1
1x G/E, 1000 BASE-SX- Not Supported
1x Tunnel
M120 FPC Type 2
4x OC-3 SONET, SMIR
2x G/E, 1000 BASE-SX- Not Supported
4x G/E SFP, 1000 BASE
1x OC-48 SONET, SMSR- Not Supported
M120 FPC Type 3
M120 FPC Type 1
1x G/E SFP, 1000 BASE
4x CHDS3 IQ
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