2 redundancy commands and queries – Comtech EF Data CRS-500 User Manual
Page 170

CRS-500 1:N Redundancy System
Revision 2
Serial-based Remote Product Management
MN-CRS500
9–10
In the tables that follow, the following codes are used in the ‘Response to Command’ column (per Sect. 9.4.2.5):
= Message ok
# Message OK, but only permitted in Remote mode
? Received ok, but invalid arguments were found.
~ Time out of a pass-through message
^ Message ok, , but not permitted in Current mode
! Unknown command
9.5.2 Redundancy Commands and Queries
Parameter Type
Command
(Code and
qualifier)
Arguments for
Command or
Response to
Query
Description of arguments
(Note that all arguments are ASCII numeric codes, that
is, ASCII codes between 48 and 57)
Response to Command
(Target to controller)
Query
(Code and
qualifier)
Response to query
(Target to controller)
Audio Alarm
Mask
AAM=
1 byte, numerical
Command or Query.
Sets or returns the Audio alarm mask in the form x, where:
0 = no faults masked (audio enabled in response to any fault)
1 = Switch faults masked
2 = Modem faults masked
3 = All faults masked (audio never enabled)
AAM=
AAM?
AAM*
AAM?
AAM=x
(see description of
arguments)
Configure Active
Modems
ACT=
10 bytes,
numerical
Command or Query.
Sets or returns the active state of all 10 Traffic Modems in
the form x, where:
0 = de-activate Traffic Modem (except if in back-up)
1 = activate Traffic Modem
Note: Redundant modems are always active.
ACT=
ACT?
ACT*
ACT?
ACT=xxxxxxxxxx
(see description of
arguments)
Active Modem
Status
N/A
10 bytes,
numerical
Query only.
Returns the state of all 10 Traffic Modems in the form x,
where:
0 = TMI not present. Modem cannot be activated.
1 = TMI present, but modem not activated.
2 = TMI present, modem activated and responding.
3 = TMI present, modem activated but not responding.
N/A
AMQ?
AMQ=xxxxxxxxxx
(see description of
arguments)
Bridged or
Backed-up
Modem Number
(Redundant
Modem 1)
BB1=
3 bytes, numerical Command or Query.
Sets or returns the bridge/back-up state for RM1, followed
by the selected TM to be acted on, in the form rxyy where:
x is: 0 = bridge,
1 = back-up (only possible when in manual mode)
yy is:
01-10 for modem number in 1:N mode
BB1=
BB1?
BB1*
BB1?
BB1=xyy
(see description of
arguments)