Specifications

Danish Interpretation Systems Technical Specifications
Printed in Denmark
14
4.3.2 Messages in MICROPHONE_CONTROL_GRP
The following subsections describe each of the messages in the group. The message format
descriptions have the same meaning as in section 3.4.3.
MICROPHONE_CONTROL_DELEGATE_OFF_ACTIVATE
Command item value: 1
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <18> <1> <0> <0> <CRC> <STOP>
When this command is issued to the CU all active delegate microphones are deactivated (chairman
units are unaffected) and cannot be reactivated until the delegate off is deactivated.
MICROPHONE_CONTROL_DELEGATE_OFF_DEACTIVATE
Command item value: 2
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <18> <2> <0> <0> <CRC> <STOP>
This command is used to re-allow delegate microphones to be activated after
MICROPHONE_CONTROL_DELEGATE_OFF_ACTIVATE has been used.
MICROPHONE_CONTROL_MUTE_ACTIVATE
Command item value: 3
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <18> <3> <0> <0> <CRC> <STOP>
This command mutes all delegate microphones (chairman units are unaffected).
MICROPHONE_CONTROL_MUTE_DEACTIVATE
Command item value: 4
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <18> <4> <0> <0> <CRC> <STOP>
This command is used to un-mute the delegate microphones after the above command has been used.
MICROPHONE_CONTROL_NEXT_ON
Command item value: 7
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <18> <7> <0> <0> <CRC> <STOP>
Disables the delegate microphone that has been active for the longest time, and activates the first
delegate microphone in the request list.