Comtech EF Data CDM-625A Installation And Operation Manual page 311

Advanced satellite modem (18 kbps – 25 mbps)
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CDM-625A Advanced Satellite Modem
Serial-based Remote Product Management
Command
Parameter
Number of
(Instruction
Type
Arguments
& Qualifier)
ESC
SCP=
3 bytes, numeric
Parameters
Exception –
600/L Emulation:
SCP=xy
External
EFR=
1 byte, value of 0
Frequency
thru 6
Reference
Exception –
600L Emulation:
MRC=
Adjustment for
ADJ=
4 bytes, numeric
Internal 10MHz
High- stability
Reference
Warm-up Delay WRM=
1 byte, 0 or 1
Countdown of
CTD=
3 bytes, numeric
Warm-up Delay
remaining
Description of Arguments
Command or Query. (IBS and ESC++ feature)
Allows control of the ESC baud rate and character format in the form xyz, where:
x is the index for baud rate:
0=1200 baud
1=2400 baud
2=4800 baud
3=9600 baud
4=19200 baud
5=38400 baud
6=14400 baud
7=28800 baud
y is the character format (data bits, parity, stop bits):
0=8N1 char format
1=7E2 char format
2=7O2 char format
z is the interface type:
0=RS-232
1=RS-485
The baud rate may be limited by the data rate. The ESC baud rate breakpoints (determined by data rate) are shown in
Chapter 6 and Appendix J. A response of SCP* will indicate if the data rate will not allow a selected baud rate to operate.
Command or Query.
External Frequency Reference in the form x, where:
0=Internal 10MHz (default)
1=External 1 MHz
2=External 2 MHz
3=External 5 MHz
4=External 10 MHz
5=spare
6=Internal 10MHz plus output.
This means that the Reference is available on the "Ext Ref" rear connector (small rear-panel LED indicates when
ON)
Command or Query.
Provides fine adjustment of the Internal 10MHz Reference on the High-Stability Frequency Reference module in the form
sddd, where:
s= sign (+ or –)
ddd= value, 0-999.
Command or Query. (Hi-Stab Ref parameter)
Hi-stab Ref warm-up delay parameter in the form x, where:
0= Delay off (instant on)
1= Warm-up Delay on
Command or Query. (Hi-Stab Ref parameter)
Hi-stab Ref countdown parameter in the form xxx, where:
xxx = countdown of the number of seconds remaining of the Warm-up time.
As a command, the only permitted format is CTD=000, which abandons the delay.
8–29
Revision 0
MN-CDM625A
Query
Response to
(Instruction &
Response to Query
Command
Qualifier)
SCP=
SCP?
SCP=xyz
SCP?
(see Description of
SCP*
Arguments)
SCP#
Exception –
600/L Emulation:
SCP=xy
EFR=
EFR?
EFR=x
EFR?
(see Description of
EFR*
Arguments)
EFR#
Exception –
600L Emulation:
MRC=
MRC?
Exception –
Exception –
MRC*
600L Emulation:
600L Emulation:
MRC#
MRC=?
MRC=x
ADJ=
ADJ?
ADJ=sddd
ADJ?
(see Description of
ADJ*
Arguments)
ADJ#
WRM=
WRM?
WRM=x
WRM?
(see Description of
WRM*
Arguments)
WRM#
CTD=
CTD?
CTD=xxx
CTD?
(see Description of
CTD*
Arguments)
CTD#

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