Specifications

Danish Interpretation Systems Technical Specifications
Printed in Denmark
22
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <52> <11> <0> <0> <CRC> <STOP>
An attendance check (or presence check) among delegates is conducted in order to determine, how
many are actually participating the meeting – how many votes can be cast from the present delegates.
This command is sent to the CU to start an attendance check. If the CU accepts the command to start
an attendance check, it issues the VOTING_STATUS_ATTENDANCE_CHECK_STARTED message of
the VOTING_STATUS_GRP.
As soon as an attendance check session is started, the CU continuously informs the external control
unit about the current result (interim result). Two times every second, the CU sends the message
VOTING_STATUS_INTERIM_ATTENDANCE_CHECK_RESULT carrying the latest result. Be aware,
that the CU distinguishes between interim result and final result – while the attendance check is
running the CU only sends VOTING_STATUS_INTERIM_ATTENDANCE_CHECK_RESULT
(including interim result) – when the attendance check is finished the CU only sends
VOTING_STATUS_ATTENDANCE_CHECK_RESULT (including final result).
When a delegate presses the ‘Present’ button, the CU sends a UNIT_ATTENDANCE_STATUS_GRP
message with information about the microphone unit address(es), where the present button(s) was
pressed. If the activity among the delegates is high, the CU gathers several addresses in one
UNIT_ATTENDANCE_STATUS_GRP message. Notice, in order to be able to deliver as much
information as possible a dedicated message group is used for this purpose. It is thereby possible to
convey information of up to 4 present delegates in one message.
When an attendance check is started, it continues until it is stopped from the external control (see the
VOTING_CONTROL_STOP_ATTENDANCE_CHECK message below).
In case the CU experiences faults in communication, it cancels the ongoing attendance check session
and issues VOTING_STATUS_ATTENDANCE_CHECK_CANCELLED.
It is not possible to start an attendance check, while a voting session is running.
VOTING_CONTROL_STOP_ATTENDANCE_CHECK
Command item value: 12
Message format:
<START> ‘j’ <ID> <0> <MSB addr> <LSB Addr> <52> <12> <0> <0> <CRC> <STOP>
This command is used to stop an ongoing attendance check. The CU acknowlegdes the command by
the VOTING_STATUS_ATTENDANCE_CHECK_STOPPED followed by the final attendance check
result (VOTING_STATUS_ATTENDANCE_CHECK_RESULT).
VOTING_CONTROL_REQUEST_ATTENDANCE_RESULT
Command item value: 14