Network Video Recorder User Manual
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1.4 Rear Panel
1.4.1 DS-7700NXI-I/S Series
Figure 1-3 Rear Panel
Table 1-4 Panel Description
Connects external SATA HDD, CD/DVD-RM.
RCA connector for audio input.
Connector for RS-232 device.
100 to 240 VAC power supply
2 RJ-45 10/100/1000 Mbps self-adaptive Ethernet
interfaces.
RCA connector for audio output.
HDMI video output connector.
Universal Serial Bus (USB) 3.0 port for additional device
such as USB mouse and USB Hard Disk Drive (HDD).
DB9 connector for VGA output. Display local video output
and menu.
Connector for RS-485 device.
D+, D- pin connects to Ta, Tb pin of controller. For
cascading devices, the first NVR’s D+, D- pin should be
connected with the D+, D- pin of the next NVR.
Connector for alarm input/output.
Switch for turning on/off the device.