Data To The Rs4232 Card; System Status Request Messages; Microphone Status Request; Commands To Control The Microphone System50 - DIS CDS 4000 User Manual & Installation Manual

CDS 4000

Data to the RS4232 Card

System status request messages

The external equipment can request the status of
the various system variables. A message is
automatically sent if an update of one of these
variables occurs.
"?M<CR>": Number of microphones connected
"?C<CR>": Chairmen connected
"?K<CR>": Maximum number of delegates
speaking
"?Q<CR>": Maximum number of delegates in
request
"?E<CR>": System mode
"?V<CR>": Volume Control
"?T<CR>": Test status

Microphone status request

"?S<CR>"
This message requests the status of the
microphones in the system and will be responded
with a series of microphone in speak/microphone in
request messages.
Commands to control the microphone
system
The commands to put a microphone in
request/speak/off, adjust the volume control, set the
maximum number of delegates speaking/in request,
and change the system mode of operation are
identical to the commands sent from the RS4232,
when any of these variables are changed from the
CU.

Delegate Off activate message

"!D<CR>"
Manual no. 4479, Printed in Denmark, 10/02
Sending this message to the interface card has the
same effect as pressing a Delegate Off button on a
chairman microphone. In Manual and Automatic
mode all delegate microphones will be turned off -
in Fifo mode the delegate microphones will be
muted. While delegate off is activated it will not be
possible for delegate microphones to switch on.
The interface card will respond to this message by
returning a Delegate Off activate acknowledge
message.

Delegate Off deactivate message

"!d<CR>"
This message deactivates the delegate off function
of the interface card.
!! IT IS VERY IMPORTANT THAT THIS
MESSAGE IS SENT FOLLOWING THE
DELEGATE OFF ACTIVATE MESSAGE TO
ALLOW DELEGAT MICROPHONES TO BE
SWITCHED ON AGAIN.
The interface card will respond to this message by
returning a Delegate Off deactivate acknowledge
message.

Conversion Table Download message

"!P<POSmsb><POSlsb><LOG1msb><LOG1lsb
> ... <LOG10msb><LOG10lsb><CHKSUM>"
This message is sent to the interface card to update
the conversion tables of the MC4000 panels in the
microphone system. Please refer to the MC4000
chapter for a description of the Conversion Table.
The bytes <POSmsb> and <POSlsb> are the most
significant byte and least significant byte
respectively of the physical number entry in the
conversion table from which the following logical
numbers will be inserted. The physical number
POS will receive the logical number LOG1, the
physical number POS+1 will receive the logical
RS232 PROTOCOL
APPENDIX 1, 50