Comtech EF Data CDM-Qx Installation And Operation Manual page 236

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier®
Appendix C
Command Arguments for
Parameter (Instruction Command or
Type Code and Response to
Qualifier)
EDMAC EFM= 1 byte, value of
Framing 0, 1, 2
Mode
(Modem only)
External ERF= 1 byte, value of
Reference 0 through 7
Frequency
EDMAC ESA= 4 bytes
Slave
Address
Range
(Modem only)
Forced Back- FBU= 1 byte
up in
redundancy
Description of Arguments
Query
Command or Query.
EDMAC mode in the form x, where:
0=EDMAC Off (Framing is on, AUPC active)
1=EDMAC Master
2=EDMAC Slave (Query Only)
Example: EFM=1 (EDMAC Enabled as Master)
Command or Query.
External Reference Frequency in the form x, where:
0=Internal, external reference connector not used
1=External 1 MHz
2=External 2 MHz
3=External 5 MHz
4=External 10 MHz
5=External 20 MHz
6=Internal with 10 MHz driven to reference connector
7=External auto detect (1,2,5,10,or 20 MHz)
Example: ERF=0 (External reference not used, uses Internal)
Command or Query.
EDMAC Slave Address Range – sets the range of addresses of
distant-end units (modems or transceivers), which this unit, as the
Master, will forward, messages for. Only values which are integer
multiples of 10 are permitted (0010, 0020, 0030, 0040, etc)
Example: ESA=0090
This command is only valid for an EDMAC Master. When used as a
Query, it may be sent to an EDMAC Slave, which will respond with the
appropriate address.
Command or Query.
Valid only if redundancy is enabled (see IRM command). If FBU is
activated, this will force the back-up module(s) to take over the
selected primary, in the form x, where:
0 = back to primary being backed-up or none
1 = Slot#1 is the primary module to be backed-up.
2 = Slot#2 is the primary module to be backed-up.
3 = Slot#3 is the primary module to be backed-up.
Note: For 1:1 Modem, use FBU=1
Response to
Command
EFM=
EFM?
EFM*
EFM#
EFM^
ERF=
ERF?
ERF*
ERF#
ERF^
ESA=
ESA?
ESA*
ESA?
ESA^
FBU=
FBU?
FBU*
FBU#
FBU$
FBU^
C–18
Revision 7
MN/CDMQX.IOM
Query
(Instruction
Response to Query
Code and
Qualifier)
EFM? EFM=x
(see Description of
Arguments)
ERF? ERF=x
(see Description of
Arguments)
ESA? ESA=xxxx
(see Description of
Arguments)
FBU? FBU=x
(see Description of
Arguments)