Dahua NVR21-4KS3 Series User Manual page 51

The NVR58-16P-4KS2E series rear panel is shown as below.
Name
Power switch
Power input port
Network port
eSATA eSATA port
USB port
High Definition
HDMI
Media Page
MIC IN Audio input port
MIC OUT Audio output port
Figure 2-60 Rear panel
Figure 2-61 Rear panel
Table 2-20 Rear panel description
Function
Power on-off button.
Input 100–240 VAC.
10/100/1000 Mbps self-adaptive Ethernet port. Connect
to the network cable.
External SATA port. It can connect to the device of the
SATA port. Please jump the HDD when there is peripheral
connected HDD.
USB port. Connect to mouse, USB storage device, USB
burner and more.
High definition audio and video signal output port. It
transmits uncompressed high definition video and
multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4b.
Bidirectional talk input port. It is to receive the analog
audio signal output from the devices such as microphone,
pickup.
Audio output port. It is to output the analog audio signal
to the devices such as the sound box.
● Bidirectional talk output.
● Audio output on 1-window video monitor.
● Audio output on 1-window video playback.
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User's Manual