Supply Shenzhen Yian conference system host

[Model] EN-800M [product name] conference system host EN-800M? System host? ◇ system host sets meeting to discuss, video automatic tracking, voting in one? ◇ system with automatic power-off memory function? ◇ from the computer together can achieve automatic camera tracking function? ◇ three-way unit port can connect up to 120 conference units, 2000 units can be connected via extension conference unit? ◇ external computer can operate independently or in combination with software synchronization? ◇ can configure the phone Coupler remote conference call? ◇ can be configured with up to four cameras? ◇ host system connection with the camera, using RS485 communication protocol? ◇ system and a PC connection, using RS232 communication protocol? ◇ have LCD menu display, function keys achieve ◇ meeting function menu settings from the computer can achieve a variety of conference mode 1:?? free discussion mode, (FREE) unlimited number of units at the same time open? 2: the number of restricted mode, (LIMIT) open at the same number of units can be set as 1/2/3/4/5/6 a? 3: FIFO mode: (FIFO), speaking 1/2/3/4/5/6 adjustable number of units, then the microphone close the front open microphone? 4: chairman mode:? (C.ONLY) will only be allowed to speak chairman microphone ◇ sturdy and durable aluminum appearance ◇ standard 19-inch rack mountable?