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Appendix B: Control panel protocol
113
T
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e comman
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The commands sent by the control panel and received by the central unit:
Notation of the general syntax:
y All separate entities in a message are represented between curly brackets, e.g.
{CRC}
y Literal strings are between quotes, e.g. 'P'
y Logical entities are neither between brackets nor quotes, e. g. Mic.-No. (microphone number)
y A logical entity will also contain a number between brackets. This number states how many characters the entity exists of, e.g.
(4)
y Volume, treble, middle and bass response are two-digit values from “00” (minimum) to “12” (maximum)
y The two-digit numbers for the conference modes are: “
00” (No Request), “01” (With Request), “02” (With Req. No Clear), “03” (Direct Access), “04” (FIFO),
General syntax General meaning Examples
{'%'}{'1'}{'L'}{Mic.-No.(4)}{CRC(4)} A microphone is activated. %L0001013E
The microphone with the number '0001' is
activated.
{'%'}{'1'}{'l'}{Mic.-No.(4)}{CRC(4)} A microphone is deactivated. %1l0001015E
The microphone with the number '0001' is
deactivated.
{'%'}{'1'}{'D'}{Mic.-No.(4)}{CRC(4)} A microphone goes into request. %1D00020137
The microphone with the number '0002' goes into
request mode.
{'%'}{'E'}{'00'}{CRC(4)} All microphones should be reset (priority function). %1E0000D6 All microphones are turned off.
General syntax General meaning Examples
{'%'}{'1'}{'T'}{Mic.-No.(4)}{CRC(4)} Activate a microphone. %1T00020147
The microphone with the number '0002' is to be
activated.
{'%'}{'1'}{'V'}{CRC(4)}
Restart the control panel and get information
about the microphones to reinitialize the control
panel.
%1V0087
The control panel is to be restarted and the correct
information about all active microphones and all
microphones in request mode is to be received.
{'%'}{'1'}{'X'}{Volume(2)}{Treble
response(2)}{Middle
response(2)}{Bass
response(2)}{CRC(4)}
Change the volume and sound settings of the
consoles’ built-in loudspeakers.
%1X06060606
0221
Volume, treble, middle and bass response are each
to be set to the value “06”.
%1X00060606
021B
All microphones are to be muted.
{'%'}{'1'}{'U'}{Conference
mode(2)}{CRC(4)}
Change the conference mode. %1U0400EA
The conference mode is to be changed to “FIFO”
mode.
{'%'}{'1'}{'v'}{CRC(4)} Activate the test tone.
{'%'}{'1'}{'w'}{CRC(4)} Deactivate the test tone.