Contemporary Research
13
2
32-MTA Mono TV Tuner
Tune Ring Commands and Replies
$R
Request
Tune
Ring
Asks for reply with list of channels in Tune Ring
Example:
‘>$R’ asks for list from Unit 1
Reply:
’<1$TR2-31,35,52,126’
$N=xxx
Request Label
Asks for reply with channel text assigned to specific channel
Example:
‘>$N31’ asks for label assigned to channel 31
Reply:
‘<1$TN038,ABC’
Terminal Communication Commands
EF
Echo Off
Characters received will not be re-transmitted (power up default)
EN
Echo On
Characters received will be re-transmitted.
Example:
‘>EN’ Characters received will be re-transmitted.
ID
Product ID
Returns the product model number and software version.
Z!
Zap
Reconfigures unit for all factory default settings.
RS-232 Command Hints and Tips
Leading zeros may be included or omitted from command parameters.
Example:
‘>TC=009’
Selects channel 9 as A/V output, same as ‘>TC=9’.
Multiple commands may be concatenated as single strings up to 120
ASCII
characters long.
Example:
‘>XXTC=9’
Selects Mute A/V off, channel 9.
Example:
‘ >S0=0S4=0’
Selects
CATV
mode, no front panel lockout.
Mute A/V Off command is not required in any command; however it may be useful to send Mute A/V Off in case
Mute A/V had been set On from the front panel.
Sending all
3
status request commands to the
232-MTA
back-to-back for a full status update is allowed.
Example:
‘>STSVSS’
Returns all
3
response strings back-to-back.
The carriage return line feed at the end of each 232-MTA response allows for easy monitoring of responses with
an ASCII terminal program. You may use ASCII CR, Hex $0D, or keyboard ‘Enter’ in programming.
You don’t have to use the ‘=’ character between the command and parameter – the string works either way.
