DB15 connector for VGA output. Display local video output and menu
Connector for RS-485 devices. T+, T- pin connects to PTZ
Connector for alarm input (up to 4 alarm inputs)
Connector for alarm output (1 alarm output)
Switch for turn on/off the device
Ground(needs to be connected when DVR startup)
Figure10. Rear Panel of DS-7604NI-S
Connector for USB devices
BNC connector for video output. If VGA output has been connected, then the
VIDEO OUT port provides no output
RCA connectors for analog audio input
RCA connector for audio output
Connector for LAN (Local Area Network)
DB15 connector for VGA output. Display local video output and menu
Connector for RS-485 devices. T+, T- pin connects to PTZ
Connector for alarm input (up to 4 channels)
Connector for alarm output (1 channel)
Switch for turn on/off the device
Ground (needs to be connected when DVR startup)