User Manual of DS-7200/7300/8100-SH Series DVR
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Table 1.11 Description of Rear Panel
BNC connector for analog video input.
BNC connector for video output.
BNC connector for spot video output.
RCA connector for audio output. This connector is synchronized with
CVBS video output.
RCA connector for audio output. This connector is synchronized with VGA
video output.
RCA connector for two-way audio input.
RCA connector for audio input.
DB26 connector for audio input.
DB15 connector for VGA output. Display local video output and menu.
Connector for RS-232 devices.
Connects USB mouse or USB flash memory devices.
2 RJ45 10M/100M/1000M Ethernet interfaces.
Connects external SATA HDD, DVD-R/W.
RS-485 termination switch. Up position is not terminated.
Down is terminated with 120Ω resistance.
Connector for RS-485 devices. Connect the T+ and T- terminals to the R+
and R- terminals of PTZ receiver respectively.
Connect the D+ and D- terminals to Ta and Tb terminals of the controller.
For cascading devices, the first DVR’s D+ and D- terminals should be
connected with the D+ and D- terminals of the next DVR.
Connector for alarm input/output.
Ground(needs to be connected when DVR starts up)
Switch for turning on/off the device.