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Digital Video Recorder User Manual
2.3 RearPanel Descriptions
2.3.1 Rear Panel Description(SA-4100HDX+)
Grounding (also for the alarm in ground connection)
Video input channels from 1-4
Connect to ground (choose only one ground, do not connect both!)
VGA output, connect to monitor
HDMI output, connect to monitor
Connect USB mouse or connect external USB devices
Connect to speed dome (RS485 PTZ cameras)
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