Comtech EF Data RCS10 User Manual

Page 215

RCS10 Redundant Communication System

Maintenance

TM058 - Rev. 2.3

Page 4-7

Table 4- 5. 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 1E-3 or Greater on
Terrestrial Input

FA6 Alarm Indication 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 Indication Received From
Satellite Input

Action In Earth Station

AS1,2 IBS Prompt, Service
Alarm

AS1 IBS Prompt Alarm

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AS1,2 IBS Prompt, Service
Alarm

AS2 IBS Service Alarm

Action to Terrestrial

(Across Interface H)

AH2 ‘1’ in Bit 3 of NFAS
TSO, Yellow Alarm

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AH1, 3 AIS in TS’s, ‘1111’
in TS16

AH2 ‘1’ in Bit 3 of NFAS

TS0, Yellow Alarm

Action to Satellite

(Across Interface D)

AD1 AIS in Relevant TS’s

AD3 ‘1111’ in
RelevantTS16’s

AD1 AIS in Relevant TS’s

AD3 ‘1111’ in Relevant
TS16’s

AD1 AIS in Relevant TS’s

AD2 ‘1’ in Bit 3 of Byte 32

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