Rear Panel Layout; Installing Sensors & Alarms (Optional) - Q-See QSDT8DP User Manual

2.3 Rear Panel Layout

Item Name
1 SPOT OUT
2 AUDIO IN
3 AUDIO OUT
4 USB MOUSE port
5 LAN
6 ALARM IN
7 RS485
8 POWER INPUT
9 FAN
10 VIDEO OUT
11 VIDEO IN
12 VGA port
13 ALARM OUT
14 +5V and GND
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
2.3.1 Installing Sensors & Alarms (optional)
The DVR has 8 channel alarm input and 1 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 2.8 Cable A
and B will be connected once the sensor detects an event. Users set
Device type as NC (Normal Close), refer to Fig 2.8 It will input +5V (high
level) to input1 when triggered, DVR will start recording.
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QSDT8DP DVR User's Manual
Fig 2.7 Rear Panel
Connect to monitor as an AUX output channel for one
channel. only displays video, not menu
4-channels audio input
Audio output, connect to speakers
Only for USB mouse
Connect to internet
Connect to external sensor 1-8.
Connect to speed domes
DC 12V
For cooling the device
Connect to monitor
8 Video inputs for cameras
VGA output, connect to monitor
Relay output 1-4. Connect to external alarm.
+5 Voltage and Grounding
Tab 2.2 Ports on Rear Panel
adjustment)
Description