Microphone Control - Shure DDS 5900 User Manual

11.1.3 Command Structure (from CU 5905 to External Control)
Command lines out of the CU 5905 are just as simple:
<command><SP><data><CR><LF>
<SP> Space - 0x20 = 32
11.1.4 Seat Numbering
Discussion Units are identified by means of a seat
numbers. Each Discussion Unit is assigned a seat number.
This is done automatically for all discussion units, when
they are connected to the CU 5905. The CU 5905 Browser
interface is used to change seat numbering.
11.1.5 CU 5905 Reply to Commands
Generally, a command from an external application is
replied to by the CU. But, reply to a command is produced
only if actions are taken by the CU due to the command.
Example: When a 'mic_on' command results in a
microphone being turned on, the CU replies with a
'mic_on' command. On the other hand, if a 'mic_on'
command does not lead to turning on a microphone,
the CU does not produce any reply.
11.1.6 Retrieving System Status
The CU supports streaming of status. When an External
Control issues a 'mic_status' or 'audio_status' command,
the CU responds by sending the microphone system
status. The same applies to 'audio status'. Therefore, it is
possible for an External Control to synchronize with the CU
status.

11.2 Microphone Control

11.2.1 Commands from External Control to CU 5905
11.2.2 Turn on microphone
mic_on <seat no><CR>
Instruct the CU to turn on the microphone at seat_no.
11.2.3 Turn off microphone
mic_off <seat no><CR>
Instruct the CU to turn off the microphone at seat_no.
11.2.4 Turn off all the delegate microphones
mic_all_delegates_off<CR>
Instruct the CU to turn off all delegate microphones.
11.2.5 Put a microphone in the request list
mic_request_on <seat no><CR>
Insert a microphone into the request list.
<CR> Carriage return - 0x0D = 13
<LF> Line Feed - 0x0A = 10
Again, to satisfy most systems, the CU terminates
command lines by including both <CR> and <LF>.
Seat numbers must be in the range from 1 to 65535.
There can be several reasons for the CU to reject turning
on a microphone:
• The microphone is already on
• The microphone is no longer connected to the system
• Speak list is already full ('max_speakers') and delegate
interrupt is not 'on'
If the CU turns on the microphone, it replies with the
'mic_on' command. If the microphone also appeared in
the request list, it is taken out of the request list and the CU
issues the 'mic_request_off' command.
If the CU turns off the microphone, it issues a 'mic_off'
command.
A Chairman is not turned off.
The CU responds to the command by issuing the 'mic_off'
command for each microphone that is turned off.
If the CU inserts the unit into the request list and it issues
the 'mic_request_on' command.