Comtech EF Data CDM-570 Installation And Operation Manual page 370

CDM-570/570L Satellite Modem with Optional IP Module
Appendix D
Command
Parameter (Instruction
Type Code and
Qualifier)
Countdown CTD= 3 bytes
RTC Date DAY= 6 bytes
Eb/No Alarm Point EBA= 4 bytes
EDMAC Framing EFM= 1 byte,
Mode value of 0, 1 or 2
External ERF= 1 byte,
Reference value of 0 thru 5
Frequency
Arguments for
Command or
Response to
Query
Command or Query.
As a command, only takes the argument 000. Used to truncate the Warm-up delay
period to zero, forcing the unit into 'instant-on' mode.
As a query, returns the Warm-up Delay countdown, in seconds remaining. Range
is from 000 to 200 seconds.
CTD=000 terminates the warm-up delay.
Example: CTD? responds with CTD=067, meaning the unit will wait another 67
seconds before it will enter an operational state.
Command or Query.
A date in the form ddmmyy, where
dd = day of the month (01 to 31),
mm = month (01 to 12)
yy = year (00 to 99)
Example: DAY=240457 (April 24, 2057)
Command or Query.
Eb/No alarm point in dB, with a range between 0.1 and 16 dB.
Resolution=0.1 dB
Example: EBA=12.3
Command or Query.
EDMAC mode, 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, where:
0=Internal
1=External 1 MHz
2=External 2 MHz
3=External 5 MHz
4=External 10 MHz
5=External 20 MHz
Example: ERF=0 (External reference not used - uses internal)
Description of Arguments
D–20
Revision 12
MN/CDM570L.IOM
Query
Response to
(Instruction Code
Command
and Qualifier)
CTD= CTD? CTD=xxx
CTD? (see Description of
CTD* Arguments)
CTD#
DAY= DAY? DAY=ddmmyy
DAY? (see Description of
DAY* Arguments)
DAY#
EBA= EBA? EBA=xx.x
EBA? (see Description of
EBA* Arguments)
EBA#
EFM= EFM? EFM=x
EFM? (see Description of
EFM* Arguments)
EFM#
ERF= ERF? ERF =x
ERF? (see Description of
ERF * Arguments)
ERF #
Response to
Query