Chapter 2. Hardware Description
3.Rear Port Specification and Connection Examples
Input Voltage Range:
Example 1. Dry contact sensor direct to DVR
This example is the simplest form of sensor connection for DVR unit. Sensors dedicated only for the function for the DVR and example below depicts that Motion Sensors are not outputting any type of voltage (dry contact).
Sensors are outputting no voltage, however DVR unit requires 5 volt DC to get response for sensor.
+5V DC |
| +5V DC |
| +5V DC |
| +5V DC |
| Sensor 1 | Sensor 2 | Sensor 3 | Sensor 4 |
|
|
|
|
|
Figure 17 Basic Sensor Connection
Example 2. Dry contact and 12 Volt DC combination direct to DVR
For some installation you may have sensors outputting different voltage that may require voltage conversion device.
Page 30
