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IDU-E-AL Alarms
Appendix E
FA4800 User Manual
Release 1.9.30
E-2
IDU-E-AL Alarms
Output 3
Service Alarm at Site B
N/A
Permanently off
Output 4
Power Failure at Site B
Link Loss due to Power Failure at Site B
Link is up or down without power failure
indication within the last two seconds
Table E-2: IDU-C - Input Alarms Description
Alarm
Description
Alarm On
Conditions
Alarm Off
Condition
Input 1
User Defined
External Alarm
Voltage in range
-10 to -50VDC
Voltage > 0VDC
Input 2
Input 3
Input 4
Table E-3: IDU-E-AL - Output Alarms Description
Alarm
Description
Alarm On Conditions
Alarm Off Condition
Output 1
Air Link Alarm
•
Link is Down
•
Link in Installation mode
•
Link Authentication Problem
Link is up
Output 2
Equipment Alarm
•
Built in Test (BIT) Error
•
No connection to the ODU
•
Incompatible Software
Both ODU and IDU are in
operational state
Output 3
Service Alarm Remote End
At least one of two conditions:
•
Link is up, but at least one of
the ports (with service config-
ured) at remote is at LOS or
AIS (only for TDM serv.) state.
•
At least one of the ports (with
service configured) at local
IDU are at LOS or AIS (only for
TDM serv.) state
Link is down or Link is up and ALL
ports (with service configured) at
the remote and local IDUs are at
NORMAL state.
Output 4
Link Loss due to Power Fail
at the remote End
A Link Loss occurred while a power fail
was detected by the remote end IDU.
Link is up or Link is down without
the power fail indication within the
last two seconds of the active link
Table E-4: IDU-E-AL - Input Alarms Description
Alarm
Description
Alarm On
Conditions
Alarm Off
Condition
Input 1
User Defined
External Alarm
User Defined
External Alarm On
User Defined
External Alarm Off
Input 2
Input 3
Input 4
Table E-1: IDU-C/E - Output Alarms Description
Alarm
Description
Alarm On Conditions
Alarm Off Condition