video camera auto-track central processor Designed by the latest digital technology,working with the meeting host,delegate unit and software. Support many cameras.(Build-in 4 cameras,it can expand to 8) 256 video camera auto-track control points. Support many kinds of cameras agreement. The central processor can communicate with the equipments by RS232 jack ,such ascomputer or video switching matrixes. Suppert many kinds of meeting mode:Freely discussion mode,FIFO mode,and Speech-limit mode. A、Freely discussion mode:All the representatives B、FIFO mode:first in,first out ;first indicators,first offers. C、Speech-limit mode:MIC 1-19 limit. Build-in video switching matrixes(4 input,1 output). The power and date communication socket are connected with main frame by 8P-DIN plug.