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2.2: LED Descriptions
Issue 9, May 1999
FNC and FNC Customer Use Only
Vol. ll, Page 480.2-5
Maintenance and Trouble Clearing
FJTU-320-515-480
Table 2-6: HS1A-AD1/-AD2 LED Descriptions
LED
Color
Meaning
FAIL
Red
An internal failure.
Blinking red
Unit MISMOUNT: the system is configured for a different mode, or the mounted
unit is not intended for use in the current configuration.
Off
Normal operation (in service).
LINE
Red
An automatic protection switching (APS) byte failure (APSB), channel mismatch
(APSCM), or DCC failure (DCCFAIL).
Off
Normal operation (in service).
HG1 Mode
FORCE
Green
A forced switch has been performed.
AUTO
Green
Automatic switching is in effect (normal operation).
MNL
Green
A manual switch has been performed.
HG2 Mode
FORCE
Green
A forced switch has been performed.
AUTO
Green
Automatic switching is in effect (normal operation).
MNL
Green
A manual switch has been performed.
Summary of Contents for FLM 150 ADM
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