NEXCOM VTC 7100-C8SK - Manual (Page 84)

Copyright © 2012 NEXCOM International Co., Ltd. All Rights Reserved. 70
Appendix D: Signal Connection of DI/DO
VTC 71-C Series User Manual
The figure below shows how to connect an external input source to one of
the output channel.
G_IN1
G_IN3
G_OUT2
G_OUT4
G_IN2
G_OUT3
G_OUT1
G_IN4
GPIO_GND GND
CN1
SIO-F-90-5.08mm
CN18
SIO-F-90-5.08mm
5
9
4
8
3
7
2
6
1
External Internal
G_OUT4
G_OUT3
G_OUT2
G_OUT1
GPO1
GPO0
GPO2
GPO3
EMB17A03G EMB17A03G
8
7
6
5
1
2
3
4
EMB17A03G EMB17A03G
8
7
6
5
1
2
3
4
External Device
Input
Resistor
External power
Dry Contact
The SW4 needs to switch to “OFF” state. The GPO signal will no have a pull
up resistor internally when you switch “SW4” to “OFF” state.