NEXCOM NViS 3620 - Manual (Page 77)

Copyright © 2013 NEXCOM International Co., Ltd. All Rights Reserved. 63
Appendix C: Signal Connection of DI/DO
NViS3620/3720 series User Manual
External Internal
GPIO1
GPO5
GPO6
GPIO2
GPIO7
GPO4
GPIO8
GPIO3
GPIO_GND
CN3
9
10
11
12
13
14
15 7
16
VCC5
6
11
5
12
4
13
External Internal
GPIO1
GPO5
GPO6
GPIO2
GPIO7
GPO4
GPIO8
GPIO3
GPIO_GND
CN3
9
10
11
12
13
14
15 7
16
Resistor
External power
Dry Contact
Each channel can accept 3~24Vdc voltage. And it is able to drive 150mA
current for low level.
The SW1 needs to switch to “OFF” state. The GPO signal will no have a pull
up resistor internally when you switch “SW1” to “OFF” state.
The figure below shows how to connect an external input source to one of
the output channel.
Digital Output
CN3 connector for GPO signal (digital signal output)
The CN3 connector has 4 digital output channels by default. The signal
connection of CN3 support two connected methods for output signal type.
The output signal has two states, one is low level (driven to 0V from GPO
signal) other is open (high voltage is provided from external device).
Wet Contact (default)
The SW1 needs to switch to “ON” state. The GPO signal will have a pull up
resistor to 5V internally when you switch “SW1” to “ON” state. The output
signal has two states, one is low level (driven to 0V from GPO signal ) other
is high level (driven to 5V from GPO signal).
The figure below shows how to connect an external input source to one of
the output channel.
GPO
Register
Port
1 HIGH
0 GND
GPO
Register
Port
1 OPEN
0 GND