Appendix C Managing SMARTBoard MX (V3, V2, and V2-C) series displays using RS-232
smarttech.com/kb/171555 97
When using a control system program instead of terminal program, all lines output from the display are
preceded by a carriage return character (<CR>) and line feed character (<LF>) and then followed by a
carriage return character (<CR>) and line feed character (<LF>), as shown in the example below. Refer
to an ASCIItable for more information about character codes if needed.
>set volume=0<CR>
<CR><LF>
volume=0<CR><LF>
>
Commands and responses
To access display information or to adjust display settings using the room control system, send a
command after the command prompt (>), send a carriage return character or press ENTER, and then
wait for the response from the display. Responses are preceded by a carriage return character (<CR>)
and line feed character (<LF>) and then followed by a carriage return character (<CR>) and line feed
character (<LF>). If no command prompt is present, send a carriage return character to thedisplay. If
the display is ready to receive commands, it will show a command prompt (>) when the carriage return
is received. See the example below.
Correct
>get volume
volume=55
>
In the example below, the user used =-50 instead of -50.
Incorrect
>set volume=-50
invalid cmd: setvolume=-50
>
Notes
l
Use ASCII formatted commands.
l
Commands aren’t case-sensitive and extra spacing is ignored.
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