Copyright © 2013 NEXCOM International Co., Ltd. All Rights Reserved.
65
Appendix D: Signal Connection of DI/DO
VTC 1010 User Manual
Dry Contact:
Digital Input
P4 connector for GPI signal (digital signal input)
The P4 has 3 digital input channels by default.
Wet Contact (default)
The GPI signals have a pull up resistor to 5V internally.
The figure below shows how to connect an external output source to one
of the input channel.
P4
SIO-F-90-5.08mm
SIO-F-90-5.08mm
5
9
4
8
3
7
2
6
1
External
Internal
G_IN6
G_IN5
G_IN4
VCC5
RN1
1K
RN1
1K
6
11
5
12
4
13
GPIO1
GPIO3
CAN1_H
GPIO6
GPIO2
CAN1_L
GPIO5
GPIO4
ISO_GND
P4
SIO-F-90-5.08mm
SIO-F-90-5.08mm
5
9
4
8
3
7
2
6
1
External
Internal
G_IN6
G_IN5
G_IN4
GPIO1
GPIO3
CAN1_H
GPIO6
GPIO2
CAN1_L
GPIO5
GPIO4
ISO_GND
Resistor
External power
External
Switch
Port
GPI
Register
ON (Short)
GND
0
OFF (Open)
OPEN
1
External
Switch
Port
GPI
Register
ON (Short)
GND
0
OFF (Open)
HIGH
1
