Maintaining T4000 Pics; Maintaining The T4000 Power System - Juniper T4000 Hardware Manual

T4000 Core Router Hardware Guide
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Maintaining T4000 PICs

Purpose
Action
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Documentation

Maintaining the T4000 Power System

Purpose
Action
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On a regular basis:
Check the LEDs on the craft interface directly above each FPC slot. During normal
operation:
The green OK LED above the FPC on the craft interface lights steadily when the FPC
is online and functioning normally.
The green LED blinks during startup.
OK
The red FAIL LED above the FPC on the craft interface is not lit. If the
"Troubleshooting the T4000 FPCs" on page
Check the LCD on the craft interface.
Use the
show chassis fpc
Online in the column labeled
T4000 Craft Interface LEDs
T4000 FPC Description on page 57
For optimum router performance, verify the condition of the PICs.
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
T4000 Core Router Interface Module Reference. If the FPC that houses the PIC detects
a PIC failure, the FPC generates an alarm message to be sent to the Routing Engine.
Use the
show chassis fpc pic-status
slots in an FPC are numbered from
T4000 PIC Description on page 62
Troubleshooting the T4000 PICs on page 363
For optimum router performance, verify the condition of the power supplies and grounding.
On a regular basis:
Check the red and yellow alarm LEDs and the LCD on the craft interface. Power supply
failure or removal triggers an alarm that causes one or both of the LEDs to light and
358.
command to verify the status of installed FPCs. The value
State indicates that the FPC is functioning normally.
command or
show chassis pic
through , top to bottom:
0 1
FAIL is lit, see
comand. The PIC
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