Radyne DMD20 Installation And Operation Manual page 125

Maintenance and Troubleshooting
Table 6-4. IBS Fault Conditions and Actions (includes Drop and Insert)
Fault Detected on
Terrestrial Link
(Across Interface A)
FA1 - Loss of
Terrestrial Input
FA2 - Loss of
Terrestrial Signaling
FA3 - Loss of
Terrestrial Frame
FA4 - Loss of
Terrestrial Multiframe
-3
FA5 - BER of 1x 10
or Greater on
Terrestrial Input
FA6 - Alarm Indication
Received on
Terrestrial Input
6-8
Figure 6-10. IBS Alarm Concept
Action In Earth
Station
AS1, 2 - IBS Prompt,
Service Alarm
AS1 - - IBS Prompt
Alarm
AS1 - - IBS Prompt
Alarm
AS1 - IBS Prompt
Alarm
AS1 - IBS Prompt
Alarm
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DMD20 Universal Satellite Modem
Action to Terrestrial
(Across Interface H)
AH2 - '1' in Bit 3 of
NFAS TSO, Yellow
Alarm
AH2 - '1' in Bit 3 of
NFAS TSO, Yellow
Alarm
AH2 - '1' in Bit 3 of
NFAS TSO, Yellow
Alarm
AH2 - '1' in Bit 3 of
NFAS TSO, Yellow
Alarm
AH2 - '1' in Bit 3 of
NFAS TSO, Yellow
Alarm
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Action to Satellite
(Across Interface D)
AD1 - AIS in
Relevant TSs
AD3 - '1111' in
RelevantTS16's
AD1 - AIS in
Relevant TSs
AD3 - '1111' in
Relevant TS16's
AD1 - AIS in
Relevant TSs
AD2 - '1' in Bit 3 of
Byte 32
TM103 - Rev. 1.1