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Tune ring commands and replies, Terminal communication commands, Rs-232 command hints and tips – Contemporary Research 232-MCT User Manual

Page 13

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Contemporary Research

13

232-MCT Mono Caption 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.

Z]

Soft Zap

Emulates reboot after power restored

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-MCT

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-MCT 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.