·One NVC-9400 mainframe can manage up to 80units.  Multiple mainframes connection for expansion.

·Operate with PC or manually.

·Selectable speech modes as unrestricted discussion mode or limited microphone open mode.

·Limited microphone open mode can open 1, 3, 6 microphones simultaneously.

·Digital FIFO function; camera tracking opens last unit only.

·Speech duration setting by PC.

·Chairman interruption audio signal setting available by PC.

·With software, two voting modes are selectable:

     -    Voting mode: agree/against/abstain

     -    Selection mode: 1/2/3

·Together with computer software, operate voting process by designated operator or chairman

·Voting result display can be column shape or pie shape upon selection.

·Able to print or store voting result with software.

·Registered voting or secret voting selectable.

·One single mainframe can be connected to up to 4 high-speed dome cameras.

·Built-in 4×1 composite video matrix and VGA to composite video signal conversion in mainframe.

·Microphone input, external audio source input and volume control provided to create remote videoconference.

·High and low tone equalization control for audio output.

·An 8pin DIN 10-meter connection line and computer serial port connection line included.

Technical specification

Power supply	Frequency response	Dimension	Color
AC220V 50~60Hz	50Hz ~ 16KHz	430(W)×99(H)×325(D)mm	Black