Comtech EF Data CDM-425 Installation And Operation Manual page 350

Command
Length of
Parameter (Instruction
Arguments
& Qualifier)
EDMAC Slave ESA= 4 bytes
Address
Range
One Time OTO= 1 byte,
EDMAC Slave 0 or 1
Overwrite
External EFR= 1 byte,
Frequency 0 thru 6
Reference
Adjustment ADJ= 4 bytes,
for Internal numeric
10MHz High-
stability
Reference
Warm-up WRM= 1 byte,
Delay 0 or 1
Countdown of CTD= 3 bytes,
Warm-up numeric
Delay
remaining
Serial Remote Control
Description of Arguments
Command or Query.
Sets or returns EDMAC range of addresses of distant-end units (modems or transceivers) for which this
unit, as the Master, will forward messages. Only values which are integer multiples of ten are permitted.
(0010, 0020, 0030, 0040 etc.)
EXAMPLE: <0/ESA=0090
NOTE: 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.
Sets or returns One Time Overwrite to EDMAC Slave modem in the form x, where:
0=Off
1=On
EXAMPLE 1: OTO=0 disables One Time Overwrite – EDMAC Slave modem may only remotely accept
EDMAC command from EDMAC Master modem.
EXAMPLE 2: OTO=1 enables One Time Overwrite – EDMAC Slave modem may locally accept ONE
remote control command.
Command or Query.
Sets or returns the 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.
Sets or returns 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-Stability Frequency Reference parameter)
Sets or returns the High-Stability Frequency Reference warm-up delay parameter in the form x, where:
0=Delay off (instant on)
1=Warm-up Delay on
Command or Query. (Hi-Stability Frequency Reference parameter)
Sets or returns the High-Stability Frequency Reference countdown parameter in the form xxx, where:
xxx=countdown of the number of seconds remaining of the Warm-up time.
NOTE: As a command, the only permitted format is CTD=000, which abandons the delay.
8–26
CDM-425 Advanced Satellite Modem
Revision 0
Query
Response to
(Instruction Response to Query
Command
& Qualifier)
ESA= ESA? ESA=xxxx
ESA? (see Description of
ESA* Arguments)
ESA#
OTO= OTO? OTO=x
OTO? (see Description of
OTO* Arguments)
OTO#
EFR= EFR? EFR=x
EFR? (see Description of
EFR* Arguments)
EFR#
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#
MN-CDM-425