Network Video Recorder
User Manual
Network Video Recorder
10
Rear Panel:
Index
Name
Function
1
Video input
16-channel video input (BNC)
2
Audio input
16-channel audio input (RCA)
3
Video output
1 channel video output interface(BNC)
4
Audio output
1-channel audio output interface (RCA)
5
Intercom input
1-channel intercom input
6
Extension interface
Loop-out extention interface
7
RS 232 interface
1-channel RS232 communication interface
8
VGA interface
1-channel VGA display interface
9
HDMI interface
HDMI HD output interface
10
LAN interface
1-channel network interface (RJ45)
11
USB interface
1-channel USB Interface (available to U disk backup or
12
I/O Alarm, serial interface
Alarm input/output interface , PTZ interface
13
Fan outlet interface
ATX power supply fan air outlet
14
Power interface
AC power connector
4.6. The Alarm Cable:
Examples of alarm input connections
The alarm input is the switch quantity input. If the alarm input signal is not switch quantity signal but voltage
signal.
Examples of alarm output connections
Alarm input and output connections
Alarm input
A. Alarm input is grounding alarm input.
B. Alarm input demand is the grounding voltage signal.
C. When the alarm is connected with two NVRs or connected with NVR and other equipments, it should be
isolated by relay.
Alarm output
Alarm output can not be connected with high-power load (no more than 1A). When forming the output loop it
must prevent the big current from relay damage. Use
the contact isolator when there is a high-power load
