10
Figure 2-2
Please refer to the following sheet for detailed information.
SN
Function
1
3G antenna port
Please note only the unit of 3G module supports this
function.
2
SIM card socket
Please note only the unit of 3G module supports this
function.
3
WIFI antenna port
Please note only the unit of WIFI module supports this
function.
4
GPS antenna port
Please note only the unit of GPS module supports this
function.
5
Audio/video input port.
6
Audio/video output port.
7
VGA video output port.
8
Bidirectional talk input port
9
RS485 port
10
RS232 port
11
Extension port
12
Alarm input /output port.
13
Power port
2.3 Connection Interface
The connection interface is shown as below. See Figure 2-3.