225
Testing the Complete Configuration
October 2002
SPAN LEDs
The 4 SPAN LEDs indicate the status of the 4 T1/E1 facilities. A SPAN LED is in one of the
following states:
• Solid on yellow: Facility is operational and alarm free.
• Blinking yellow for 2 seconds, off 0.1 seconds: Facility is operational and alarm free
AND is carrying the control channel (facility A or B only).
• Solid on red: Facility is alarmed.
• Solid off: Facility is not administered or has been busied out.
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