Chapter 12 The I/O Terminal Block; Pin Assignment - GeoVision GV-Compact DVR V2 User Manual

Chapter 12 The I/O Terminal Block

The 16-pin terminal block, located on the rear panel, provides the interface to: four digital
inputs, four relay outputs, one RS-485 interface, one RS-232 interface and auxiliary power.
The I/O terminal block can be used to develop applications for motion detection, PTZ control,
GPS tracking and a variety of other functions.

12.1 Pin Assignment

The pin assignment for the terminal block are described in the table below.
Pin Function
1 Relay Output 1
2 Digital Input 1
3 Relay Output 2
4 Digital Input 2
5 Relay Output 3
6 Digital Input 3
7 Relay Output 4
8 Digital Input 4
12
Figure 12-1
Pin Function
9 Relay COM
10 Ground
11 DC 12V Out for camera power supply
12 RS-232 TX for GPS tracking
13 RS-485 + for PTZ control
14 RS-232 RX for GPS tracking
15 RS-485 – for PTZ control
16 DC 5V Out for GPS module
The I/O Terminal Block
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