T640 T Series Control Boards (T-CBs) LEDs
Three LEDs, located on the T-CB faceplate, indicate the status of the T-CB.
Table 42 on page 66 describes the functions of the T-CB LEDs.
Table 42: T-CB LEDs
DescriptionStateColorLabel
T-CB is functioning as the master.On steadilyBlueMASTER
T-CB has failed.On steadilyYellowFAIL
T-CB is online and is functioning normally.On steadilyGreenOK
T-CB is powering up, but not online.Blinking
Related
Documentation
• T640 Host Subsystem Description on page 35
• T640 Control Boards Description
• T640 T Series Control Boards (T-CBs) Description on page 64
• Troubleshooting the T640 Host Subsystem on page 472
• Troubleshooting the T640 Control Board on page 473
Copyright © 2017, Juniper Networks, Inc.66
T640 Core Router Hardware Guide
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