Related
Documentation
T640 Power System Description on page 95•
• Replacing a T640 Two-Input 160-A DC Power Supply on page 349
• Replacing a T640 Three-Input 240-A DC Power Supply on page 356
• Replacing a T640 Four-Input 240-A DC Power Supply on page 366
• Replacing a T640 Six-Input DC Power Supply on page 380
• Replacing a T640 DC Power Supply Cable on a Two-Input 160-A Power Supply,
Three-Input 240-A DC Power Supply, or a Four-Input 240-A DC Power Supply on
page 373
• Replacing a T640 DC Power Supply Cable on a Six-Input DC Power Supply on page 386
• Replacing a T640 Three-Phase Delta AC Power Supply on page 396
• Replacing a T640 Three-Phase Delta AC Power Supply Cord on page 404
• Replacing a T640 Three-Phase Wye AC Power Supply on page 410
• Replacing a T640 Three-Phase Wye AC Power Supply Cord on page 416
• T640 General Electrical Safety Guidelines and Electrical Codes on page 529
Troubleshooting the T640 SIBs
Problem Description:
The following alarms and LEDs indicate a problem with a SIB:
• The yellow FAIL LED on the SIB faceplate is lit.
• The green OK LED on the SIB faceplate is not lit.
• A red alarm indicates that the SIB failed or has been removed.
• A yellow alarm indicates that a spare SIB has failed or has been removed.
In Table 100 on page 479, the text in the column labeled ”LCD Message” appears in the
display of the craft interface. The text in the column labeled “CLI Message” appears in
the output from the show chassis alarms command.
Table 100: SIB Alarm Messages
CLI MessageLCD MessageAlarm Type
SIB sib-number FaultSIB sib-number FailureRed
SIB sib-number AbsentSIB sib-number Removed
Spare SIB FaultSpare SIB FailureYellow
Spare SIB AbsentSpare SIB Removed
Check SIBCheck SIB
479Copyright © 2017, Juniper Networks, Inc.
Chapter 33: Troubleshooting Components
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