Table of Contents
Advertisement
Serial Interface Operation
CDM-760 Advanced High-Speed Trunking Modem
8.5.13
Redundancy Control
Controller-to-Target
Instruction Code and
Qualifier
Parameter Type
Command
Query
1:1 Operational
ASW
ASW?
Mode
1:1 Force Unit
FSW=
FSW?
Offline
1:1 Redundancy
N/A
RED?
Unit online or
offline
1:N Redundancy
R1N=
R1N?
Enable
1:1 Redundancy
N/A
R11?
Switch Available
Arguments for
Description of Arguments
Command or
(Note that all arguments are ASCII numeric codes from 48 to 57)
Query
1 byte, value of 0
Command or Query.
or 1
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).
0 bytes
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=
0 bytes
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)
1 byte, value of 0
Command or Query.
or 1
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)
1 byte, value of 0
Query only.
or 1
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)
8–45
Revision 3
MN-CDM760
Target-to-Controller
(see Description of Arguments)
Response to
Response to
Command
Query
ASW=
ASW=x
ASW?
ASW *
ASW #
FSW=
FSW=
FSW?
N/A
RED=x
R1N=
R1N=x
R1N?
R1N *
R1N #
N/A
R11=x
Advertisement
Table of Contents
