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Alarm input – Q-See QSD2316L User Manual

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QSD2308L/QSD2316L DVR User’s Manual

9

Fig 2.8 Rear Panel of 16-channel DVR

Item

Name

Description

1

VIDEO OUT

Connect to monitor

2

SPOT OUT

Connect to monitor as an AUX output channel for
one channel. only displays video, not menu

3

VIDEO IN

16 Video inputs for cameras

4

AUDIO OUT

Audio output, connect to speakers

5

AUDIO IN

4-channels audio input

6

S-VIDEO

S-Video output, connect to monitor

7

PS/2 port

Connect PS/2 mouse

8

USB port

Only for USB mouse

9

RJ45 port

Connect to internet

10

VGA port

VGA output, connect to monitor

11

COM port

For debugging

12

ALARM IN

Connect to external sensor1-16.

13

+5V and GND

+5 Voltage and Ground

14

ALARM OUT/PTZ

Relay output1-4. Connect to external alarm. PTZ
input

15

RS485

Connected to speed domes

16

FAN

For cooling the device

17

POWER INPUT

DC 12V

Tab2.4 Ports on Rear Panel of 16 channel

Note

: The resolution of VGA output is 800*600/60Hz. If connected through VGA port,

please assure your display supports this display mode. (Most LCD screens can
adapt to it automatically without manual adjustment

)

2.3.2 Installing Sensor & Alarm (optional)

The DVR has 16 channel alarm input and 4 channel alarm output.

Alarm Input:

The alarm input is triggered by electric level (High: 5V, Low: 0V). Users

can connect external sensors, like gas detectors, smoke detectors and
infrared detectors. Once the DVR detects that the electric level meets the
user’s settings it will trigger the DVR recording or alarm out.

For example, a sensor is connected to alarm input1 as Fig 2.1. Cable A
and B will be connected once the sensor detects an event. Users set
Device type as NC (Normal Close), refer to Fig 2.1. It will input +5V (high
level) to input1 when triggered, DVR will start recording.

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