1.4 Functions and features
1. Set up numbers of active microphones and
operation modes
Active microphone(s) limit (1/2/3/4) and speech
time limit.
Five operation modes can be set via the main unit:
“OPEN” mode, after the number of active
microphone(s) come to the limit, microphone key
with request-to-speak registration (AUTO);
“OVERRIDE” mode, if the limit is achieved,
microphone key controls with override of the
active microphones (FIFO);
“VOICE” mode
，
automatic voice-controlled mode,
sensitivity level can be set;
“APPLY” mode, delegate applies to speak by
pressing microphone On/Off key, delegate can
speak only when chairman approved his
application;
“PTT” mode, when the delegate presses and
holds the microphone ON/OFF button, the
microphone will be activated; when the ON/OFF
button is released, the microphone will be
deactivated.
2. Multi-chairman unit in one system and delegate
units set as VIP
■ In one system at most 100 chairman units can be
connected, but only 1 chairman unit has control
facility.
■ Delegate units can also be set as VIP, as many as
32 VIP units are available in one system. VIP unit
can be activated as long as the total of active
microphones is not beyond 6
(including
chairman/delegate/VIP unit, except voice mode).
3. Web control
■ Active microphone(s) limit (1/2/3/4) and
microphones mode selection.
■ Microphone ID list, speaking and request list can
be displayed on Web page and through which the
operator can turn on/off the microphones.
■ Speech time limit.
■ Predefined position setting, video matrix setting
and video switch.
4. Conference recording and playback
■ USB interface and SD slot for conference
recording and playback.
■ The recording will switch to the other device when
SD card or USB drive is full without interruption.
5. Digital Audio input/output
■ USB interface realizing quality-lossless sound
recording on PC and intact input of streaming
audio into the system
6. Automatic video tracking
■ Automatic video tracking can be carried out if video
switch unit and camera are installed, and the video
image
can be displayed on the screen
synchronously.
7. Built-in loudspeaker
■ The main unit has a dapper design can be put on
the council board and its built-in monitor
loudspeaker can be directly employed in small and
medium size meeting rooms without amplification
system.
8. Seamlessly integrated with central control
system
■ The seamless integration of HCS-3900
Economical Digital Conference System and central
control system provides comprehensive
conference system solutions. Besides the basic
conference management
(discussion, video
tracking, etc.), it also manages peripheral
multimedia equipment, surrounding lights,
projector display and sound equipment.
9. System self-detecting
■ Built-in self-detecting function in each contribution
unit for automatic detection of LED indicators.
10. Excellent immunity to RF interference from
mobile phones
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