Comtech EF Data CDM-750 - Manual (Page 222)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Serial-based Remote Product Management MN-CDM750
7–42
7.5.12 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.
Set or return 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.
There are no parameters associated with this command. 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: 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: RED?1 (indicating 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: R1N=1 (indicating 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: R11?0 (indicating the unit is not connected to a 1:1 switch)
N/A R11?
R11=x