Appendix A
RCS20 M:N Redundancy Switch
A-2
TM056 – Rev. 2.3
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Channels
Number of
Status Bytes per
Channels
*Channel 0
Status
*Backed up
Modulator
*Backed up
Demodulator
Switch Major
Alarms
Switch Minor
Alarms 1
Switch Minor
Alarms 2
Latched Switch
Major Alarms
Maximum number of prime and backup channels available to
the RCS20 switch. 3 decimal for RCS20.
Bit 0 = modulator failure flag
Bit 1 = demodulator failure flag
(0 = no failure, 1 = failure)
Bit 2 = switch communication in process
(0 = no comm in process)
(1 = comm in process)
Bit 3 = modem responding to switch flag
(0 = not responding, 1 = responding)
Bit 4 = modulator present
(0= not present, 1= present)
Bit 5 = demodulator present
(0= not present, 1= present)
0 = This channel not a backup channel, or this channel is a
backup channel but currently not backing up a mod
1 - 9 = This channel currently backing up a mod, channel
number as indicated.
0 = This channel not a backup channel, or this channel is a
backup channel but currently not backing up a demod.
1 - 9 = This channel currently backing up a Demod, channel
number as indicated.
*Note: These 3 bytes repeat for channels 1 - 9 (27
additional bytes used)
Bit 0 = RAM/ROM fault
Bit 1 = No Backup for Faulted Prime
Bit 2 = Error During Backup
(0 = no alarm, 1 = alarm)
Bit 0 = Power Supply #1 Present
Bit 1 = Power Supply #2 Present
Bit 2 = Power Supply #1 Voltage
Bit 3 = Power Supply #2 Voltage
Bit 4 = Communications Error
Bit 5 = Faulted Prime Modem
Bit 6 = Faulted Backup Modem
Bit 7 = Modem Configuration Change
(0 = no alarm, 1 = alarm)
Bit 0 = CDM Error
Bits 1 - 7: Reserved for future expansion
(0 = no alarm, 1 = alarm)
Bit 0 = RAM/ROM fault
Bit 1 = No Backup for Faulted Prime
Содержание RCS20
Страница 2: ......
Страница 19: ...RCS20 M N Redundancy Switch Installation TM056 Rev 2 3 2 7 Figure 2 6b AS 3356 Data Switch Module...
Страница 36: ...Installation RCS20 M N Redundancy Switch 2 24 TM056 Rev 2 3...
Страница 47: ...RCS20 M N Redundancy Switch User Interfaces TM056 Rev 2 3 4 9 Figure 4 2...
Страница 48: ...User Interfaces RCS20 M N Redundancy Switch 4 10 TM056 Rev 2 3 Figure 4 3...
Страница 49: ...RCS20 M N Redundancy Switch User Interfaces TM056 Rev 2 3 4 11 Figure 4 4...
Страница 58: ...User Interfaces RCS20 M N Redundancy Switch 4 20 TM056 Rev 2 3...
Страница 60: ...Electrical Interfaces RCS20 M N Redundancy Switch 5 2 TM056 Rev 2 3 Figure 5 2 IFS20 Rear Panel Connectors...
Страница 61: ...RCS20 M N Redundancy Switch Electrical Interfaces TM056 Rev 2 3 5 3 Figure 5 3 IFS20 Chassis Base...
Страница 62: ...Electrical Interfaces RCS20 M N Redundancy Switch 5 4 TM056 Rev 2 3 Figure 5 4 DDS20 Front and Rear Panels...
Страница 84: ...Maintenance RCS20 M N Redundancy Switch 6 6 TM056 Rev 2 3...
Страница 100: ...Appendix A RCS20 M N Redundancy Switch A 14 TM056 Rev 2 3...
Страница 112: ...Appendix B RCS20 M N Redundancy Switch B 12 TM056 Rev 2 3...