Installing Sensor And Alarm (Optional) - Q-See QT5116 User Manual

GETTING STARTED

2.3.1 Installing Sensor and Alarm (Optional)

Depending on your model number, this DVR has 8 or 16 channel alarm inputs and 4 channel alarm outputs.
The alarm input is triggered by electric level (High: 5V/Low: 0V). Users can connect external sensors, such as gas,
smoke or infrared detectors. Once the DVR detects that the electricity level meets the user's settings it will trigger the
DVR recording or alarm output. For example, a sensor is connected to alarm input 1 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) as shown in Fig 2.8.
The sensor will adjust input +5V (high level) to input 1 when triggered and the DVR will start recording.
Alarm Output:
The DVR has 4 channel relay alarm output, which just gives on/off signal to external alarm. The status of these pin
are illustrated as Fig 2.9.
Users need connect their alarm according to the NO or NC type of the alarm. One connection example is shown as
Fig 2.10.
Note: The power in series must be 277VAC/10A or 30VDC/10A or below
Fig 0.8 Sensor Connection
Before alarm
. .
N O
COM
. .
N C
Fig 2.9: Relay Output Status
Fig 2.10: Alarm Output Connection
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QT518 & QT5116 User Manual
After alarm
. .
N O
COM
. .
N C