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A.3.9 opcode <2204h> set rcs20 backup mode, A.3.10 opcode <2205h> clear rcs20 latched alarms, A.3.11 opcode <2206h> force rcs20 manual backup – Comtech EF Data RCS20 User Manual

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RCS20 M:N Redundancy Switch

Revision 15

Remote Operations

MN-RCS20 and CD-RCS20

A–31

<1>

*Channel 0 Backup1
IFS20L Demod Port
Assignment

0 = A, 1 = B, 2 = C, 3 = D

<1>

*Channel 0 Backup2
IFS20L Demod Port
Assignment

0 = E, 1 = F, 2 = G, 3 = H

<2>

*Spares for Channel 0

Spare Bytes

These 6 bytes will repeat for channels 1 through 9 (54 additional bytes used).

A.3.9 Opcode <2204h> Set RCS20 Backup Mode

Command Data Field (3 bytes)

<1>

Maximum Number of
Backup Channels

2 for RCS20

<1>

Backup 1 (Channel 0)
Backup Mode

0 = Manual, 1 = Automatic non-Revertive, 2 = Automatic Revertive

<1>

Backup 2 (Channel 9)
Backup Mode

0 = Manual, 1 = Automatic non-Revertive, 2 = Automatic Revertive
(will be ignored if Channel 9 is not configured as backup)

A.3.10

Opcode <2205h> Clear RCS20 Latched Alarms

There is no data field for this command.

A.3.11

Opcode <2206h> Force RCS20 Manual Backup

Command Data Field (3 bytes)

<1>

Maximum Number of
Backup Channels

2 for RCS20

<1>

Backup 1 (Channel 0)
Channel to Backup

1 to 8 (if Channel 9 configured as backup) (use 0 to un-back)
1 to 9 (if Channel 9 not configured as backup) (use 0 to un-back)
Bits 0-3 = Modulator
Bits 4-7 = Demodulator

<1>

Backup 2 (Channel 9)
Channel to Backup

(1 to 8) (use 0 to un-back)
Bits 0-3 = Modulator