208SN Icon Name Function8 AUDIO OUT Audio outputportConnect to sound box and etc to output audio signal.9 A RS485communication portRS485_A port. It is the cable A. You can connect to thecontrol devices such as speed dome PTZ.B RS485_B.It is the cable B. You can connect to the controldevices such as speed dome PTZ.10 USB3.0 port Connect to mouse, USB storage media, USB-burner andetc.11 Power socket Power input port2.2.36 XVR54XXL/ XVR74XXL SeriesThe XVR5408L rear panel is shown as below. See Figure 2-83.Figure 2-83Please refer to the following sheet for detailed information.SN Icon Name Note1 Power switch Power on/off button.2 Power socket Power socket3 AUDIO IN Audio input port It is to receive the analog audiosignal output from the devices suchas microphone.4 MIC OUT Audio output port Audio output port. It is to output theanalog audio signal to the devicessuch as the sound box.5 MIC IN Audio input port Bidirectional talk input port. It is toreceive the analog audio signaloutput from the devices such as
