13 redundancy control – Comtech EF Data CDM-760 User Manual
Page 276

Serial-based Remote Product Management
Revision 2
CDM-760 Advanced High-Speed Trunking Modem
MN-CDM760
8–42
8.5.13 Redundancy Control
Parameter
Type
Command
(Instruction
& Qualifier)
Number of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to Query
1:1 Operational
Mode
ASW
1 byte, value
of 0 or 1
Command or Query.
Sets or returns 1:1 operational mode in the form x, where:
0 = Unit is in Manual mode
1 = Unit is in Auto mode.
NOTE: In Manual Mode, all fault relays are forced to the non-faulted condition. This allows an online unit
to be configured without undesired switchover to a backup unit (Changing Rx frequency would normally
cause the online unit to unlock and a switchover to the backup modem would occur).
ASW=
ASW?
ASW *
ASW #
ASW?
ASW=x
(see description
of arguments)
1:1 Force Unit
Offline
FSW =
1
Command only.
This command takes no arguments. In a 1:1 switch environment, this command forces an online unit
offline. If the unit is offline, then no action is taken.
NOTES:
1) The 1:1 redundancy system must be installed!
2) Both online and offline units must be in Manual Mode for this command to function.
3) If the 1:1 redundancy system is not installed, then the command will return FSW?
4) If the unit is offline, then the command will return FSW?
EXAMPLE: <0/FSW=
FSW=
FSW?
FSW?
FSW=
1:1
Redundancy
Unit online or
offline
N/A
0
Query only.
Return 1:1 online/offline status in the form x, where:
0 = Unit is offline
1 = Unit is online
EXAMPLE: <0/RED?
>0000/RED=1 (indicates the unit is online)
N/A
RED?
RED=x
1:N
Redundancy
Enable
R1N =
1 byte, value
of 0 or 1
Command or Query.
Sets or returns 1:N operational mode in the form x, where:
0 = Unit is not enabled for 1:N switch operation.
1 = Unit is enabled for 1:N switch operation.
EXAMPLE: <0/R1N=1 (indicates the unit is enabled for 1:N)
R1N=
R1N?
R1N *
R1N #
R1N?
R1N=x
(see description
of arguments)
1:1
Redundancy
Switch
Available
N/A
1 byte, value
of 0 or 1
Query only.
Returns 1:1 switch status in the form x, where:
0 = Unit is not connected to a 1:1 switch
1 = Unit is connected to a 1:1 switch
EXAMPLE: <0/R11?
>0000/R11=0 (indicates the unit is not connected to a 1:1 switch)
N/A
R11?
R11=x