Comtech EF Data CDM-425 Installation And Operation Manual page 360

Advanced satellite modem (18 kbps – 25 mbps)
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Command
Length of
Parameter
(Instruction
Arguments
& Qualifier)
ACM
ACM=
4 bytes
parameters
Forced
FRB=
None
Reboot
Carrier ID
CAI=
1 byte,
State
0 or 1
Demo Time
N/A
6 bytes,
Remaining
numeric
Demo Mode
DMM=
1 byte,
0 thru 2
Medium-Earth
MEO=
1 byte,
Orbit
0 or 1
Antenna
AHO=
1 byte,
Handover
0 or 1
Antenna
AHM=
1 byte,
Handover
0 or 1
Mode
Serial Remote Control
Description of Arguments
Command or Query. (Only applicable in VersaFEC ACM and VersaFEC-2 ACM mode.)
Sets or returns ACM operating parameters in the form mMAT, where:
In VersaFEC ACM (IP-ACM):
m=Minimum Tx ModCod, range is 0 thru 9, and A (for ModCod=10) or B (for ModeCod=11)
M=Maximum Tx ModCod, range is 0 thru 9, and A (for ModCod=10) or B (for ModeCod=11)
A=Action on remote demod unlock (0=go to minimum Tx ModCod, 1=maintain Tx ModCod)
T=Target Eb/No Margin, from 0 thru 9 that is two times of the Eb/No in dB (from 0.0dB to 4.5dB).
In VersaFEC-2 ACM (V2-ACM):
mM=Maximum Tx ModCod in decimal, range is 00-37 for Long Block, and 00-35 for Short Block.
A=Action on remote demod unlock (0=go to Tx ModCod 0)
T=Target Eb/No Margin, from 0 thru 9 that is two times of the Eb/No in dB (from 0.0dB to 4.5dB).
EXAMPLE: <0/ACM=3702. (Set max ModCod=37. Go to Tx ModCod when remote demod unlocks, sets
Target Eb/No at 1.0dB.)
Command only.
This command takes no arguments. Forces a hard reset of the unit after 5 seconds.
Command or Query.
Sets or returns Carrier ID On/Off State in the form x, where:
0=Off
1=On
Query only.
Returns remaining Demo time in the form ddhhmm, where:
dd=days (00 thru 30)
hh=hours (00 thru 23)
mm=minutes (00 thru 59)
EXAMPLE: <0/DMT? >0/DMT=032312 (3 days 23 hours 12 minutes)
Command or Query.
Sets or returns Demo Mode function in the form x, where:
0=Disabled
1=Enabled
2=Expired
Command or Query.
Sets or returns Medium Earth Orbit function in the form x, where:
0=Disabled
1=Enabled
Command or Query.
Sets or returns Antenna Handover function in the form x, where:
0=Disabled
1=Enabled
Command or Query.
Sets or returns Antenna Handover Mode in the form x, where:
0=Manual
1=Auto
8–36
CDM-425 Advanced Satellite Modem
Revision 0
Query
Response to
(Instruction
Response to Query
Command
& Qualifier)
ACM=
ACM?
ACM=mMAT
ACM?
(see Description of
ACM#
Arguments)
FRB=
N/A
N/A
FRB?
FRB*
FRB#
CAI=
CAI?
CAI =x
CAI?
(see Description of
CAI *
Arguments)
CAI #
N/A
DMT?
DMT=ddhhmm
(see Description of
Arguments)
DMM=
DMM?
DMM=x
DMM?
(see Description of
DMM*
Arguments)
DMM#
MEO=
MEO?
MEO=x
MEO?
(see Description
MEO*
of Arguments)
MEO#
AHO=
AHO?
AHO=x
AHO?
(see Description of
AHO#
Arguments)
AHM=
AHM?
AHM=x
AHM?
(see Description of
AHM#
Arguments)
MN-CDM-425

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