Ibs Alarms And Actions; Table 6-1. Ibs Fault Conditions And Actions (Includes Drop And Insert); Figure 6-1. Ibs Alarms - Comtech EF Data DMD-2050E Installation And Operation Manual

DMD2050E Univeral Satellite Modem
6.5

IBS Alarms and Actions

Figure 6-1 and Table 6-1show the IBS alarms and actions to be taken at the earth station, the
terrestrial data stream and the satellite. These alarms include those detected on the terrestrial link
and those detected from the satellite.

Table 6-1. 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
FA5 - BER of 1x 10 or
-3
Greater on Terrestrial Input
FA6 - Alarm Received on
Terrestrial Input
Fault Detected From Satellite
(Across Interface E)
FA1 - Loss of Satellite
Signal Input
FA2 - Loss of Satellite
Frame
FA3 - Loss of Satellite
Multiframe
FA4 - BER of 1E-3 or
Greater From Satellite Input
FA5 - Alarm Received From
Satellite Input
MN-DMD2050E Revision 2

Figure 6-1. IBS Alarms

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
---
Action In Earth Station
AS1, 2 - IBS Prompt,
Service Alarm
AS1, 2 - IBS Prompt,
Service Alarm
AS1, 2 - IBS Prompt,
Service Alarm
AS1, 2 - IBS Prompt,
Service Alarm
AS2 - IBS Service Alarm
Maintenance and Troubleshooting
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
---
Action to Terrestrial
(Across Interface H)
AH1, 3 - AIS in TSs, '1111'
in TS16
AH1, 3 - AIS in TSs, '1111'
in TS16
AH1, 3 - AIS in TSs, '1111'
in TS16
AH1, 3 - AIS in TSs, '1111'
in TS16
AH2 - '1' in Bit 3 of NFAS
TS0, Yellow Alarm
Action to Satellite
(Across Interface D)
AD1 - AIS in Relevant TSs
AD3 - '1111' in
RelevantTS16s
AD1 - AIS in Relevant TSs
AD3 - '1111' in Relevant
TS16s
AD1 - AIS in Relevant TSs
AD2 - '1' in Bit 3 of Byte 32
Action to Satellite
(Across Interface D)
AD2 - '1' in Bit 3 of Byte 32
AD2 - '1' in Bit 3 of Byte 32
AD2 - '1' in Bit 3 of Byte 32
AD2 - '1' in Bit 3 of Byte 32
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