H11-851_V3.0試験無料問題集「Huawei HCIA-Video Conference V3.0 認定」
Through the COM port cable to connect the RS-232 control interface of the HD camera and the COM port of the HD terminal , it can realize the remote control of the camera pan/tilt/zoom, preset position, etc. of the HD terminal, COM The length of the port cable is fixed and cannot be extended.
正解:B
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