12_ overviewoverviewpArT nAmeS And funCTionS (reAr)Sdr-4100Sdr-5100Part Names Functionsa AUDIO IN Input ports (RCA jack) for the audio signal.b VIDEO IN Input port for the composite video signal.c RS-485 Used to establish RS-485 communications.d VGA OUT Output port for VGA video signal.e DC 12V DVR power input port.f NETWORK NETWORK connector port.g HDMI HDMI connector port.h AUDIO OUT Output port (RCA jack) for the audio signal.M ` [CONSOLE] is designed for the service repair purpose only.SERIAL NETWORKCONSOLEVGA OUTSERIALVIDEO OUT87654321CH1 CH2CH3 CH49 10 11 12 13 14 15 16SPOTAUDIO OUTDC 12 VAUDIO INVIDEO INVIDEO INNETWORKCONSOLEVGA OUT4321CH1 CH2CH3 CH45 6 7 8AUDIO OUTDC 12 VAUDIO INVIDEO INVIDEO INHDMI+ -RS 485ba c defghSERIAL1ALARMOUTRS-485COM COM2 1 2 3 4 5 6 7 8 9 10 11 12 13 1415 16GGALARM INNETWORKCONSOLEVGA OUT8764321CH1 CH2CH3 CH49 10 11 12 13 14 15 16AUDIO OUTDC 12 VAUDIO INVIDEO INVIDEO IN5 + -RS 485a b c defgh
