Chapter 3. Operation

Module Status LEDs

The module status LEDs display the operational condition of ports in- stalled in the option slots.

Name

Description

 

 

OK (green)

Indicates the operation is in the normal mode

 

and no errors have been detected.

 

 

Test (yellow)

Indicates that one of the interfaces is operat-

 

ing in a test mode. This includes a self-test or

 

a test loopback. When lighted, this LED also

 

indicates that normal data flow is not occur-

 

ring in at least one of the module ports.

 

 

Alarm (red)

Indicates an alarm condition has been

 

detected. When the alarm condition is no

 

longer valid, the OK LED activates (turns on).

 

To view an alarm condition, select the active

 

alarm menu item or select Alarm by pressing

 

shift 8. If the alarm conditions have been cor-

 

rected, the alarm which caused the activation

 

of the Alarm LED can be viewed under the

 

Unit History menu.

 

 

System (green)

Indicates the status of the power supplies.

 

If the LED is illuminated green, all installed

 

power supplies are functioning properly.

 

If the LED is illuminated red, one or both

 

power supplies are not functioning normally.

 

This feature is for the AC-powered 600e only.

 

For the TSU 600 and DC- powered 600e, the

 

system LED is always green.

 

 

61202076L1-1

TSU 600 User Manual

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Image 43
ADTRAN 1202076L1#DC, 1202076L2 user manual Module Status LEDs, System green, If the LED is illuminated green , all installed