AP-AVC1004 Four(4) channel HD-SDI video selector is a device for HD-SDI video conference camera choice by selecting one input source such as 4:1 MUX device. It performs to select one input out of four(4) HD-SDI video inputs by using blue LAMP Video Select button at back side or external MIC selection information via TCP/IP protocol. Normally, famous high performance MIC system vendor provides the open programming interface for interworking with other vendor¡¯s video conference systems. AddPac HD-SDI video selector system supports video conference camera preset function and MIC controllable automatic HD-SDI camera selection function. AP-AVC1004 HD-SDI video selector supports two(2) module slots for HD-SDI video interface module and RS232/RS485 camera control interface module. And main chassis of this system supports two(2) LAN interface and one(1) RS232C console interface. This system is applicable to various large size HD video conference room design and deployment