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CDM-570/570L Satellite Modem with Optional IP Module Revision 4
Serial Remote Control MN/CDM570L.IOM
13–11
Parameter
Type
Command
(Instruction
Code and
Qualifier)
Arguments
for Command
or Response
to Query
Description of Arguments
Response to
Command
Query
(Instruction
Code and
Qualifier)
Response to Query
Tx Clock
Source
TCK= 1 byte, value 0
thru 2
Command or Query.
Tx Clock Source, where:
0=Internal
1=Tx Terrestrial
2= Loop-Timed
Example: TCK=0 (selects Internal)
TCK=
TCK?
TCK*
TCK#
TCK? TCK=x
(see description of
arguments)
Tx Data Invert TDI= 1 byte, value 0
or 1
Command or Query.
Invert Transmit Data
0=Normal
1=Inverted
Example: TDI=1 (selects Inverted TX Data)
TDI=
TDI?
TDI*
TDI#
TDI? TDI=x
(see description of
arguments)
Tx Carrier
State
TXO= 1 byte, value 0
thru 4
Command or Query.
Tx Carrier State, where:
0=OFF due to front panel or remote control command
1=ON
2=RTI (receive/transmit inhibit)
3=OFF due to ext H/W Tx Carrier Off command (not a valid
argument when used as a command)
4=OFF due to BUC warm up delay (not a valid argument in a
command format.)
Example: TXO=1 (Tx Carrier ON)
TXO=
TXO?
TXO*
TXO#
TXO? TXO=x
(see description of
arguments)
Warm-up
Delay
WUD= 1 byte, value 0
or 1
Command or Query.
Warm-up Delay for internal frequency reference (OCXO)
0=Disabled (instant on – no delay for OCXO to reach temperature)
1=Enabled (unit waits until OCXO reaches correct temperature)
Example: WUD=1 (selects Warm-up Delay)
WUD=
WUD?
WUD*
WUD#
WUD? WUD=x
(see description of
arguments)
Countdown CTD= 3 bytes Command or Query.
As a query, returns the Warm-up Delay countdown, in seconds
remaining. Range is from 000 to 200 seconds.
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.
Example: CTD? – responds with CTD=067 – means the unit will
wait another 67 seconds before it will enter an operational state.
CTD=000 terminates the warm-up delay.
CTD=
CTD?
CTD*
CTD#
CTD? CTD=xxx
(see description of
arguments)