Digital output, External internal – NEXCOM VTC 1010 User Manual
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Appendix D: Signal Connection of DI/DO
VTC 1010 User Manual
P4
SIO-F-90-5.08mm
SIO-F-90-5.08mm
5
9
4
8
3
7
2
6
1
External
Internal
G_IN1
G_IN2
G_IN3
VCC5
RN1
1K
RN1
1K
1
16
2
15
3
14
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_IN1
G_IN2
G_IN3
GPIO1
GPIO3
CAN1_H
GPIO6
GPIO2
CAN1_L
GPIO5
GPIO4
ISO_GND
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
P4 connector for GPO signal (digital signal output)
The P4 has 3 digital output channels by default. The signal connection of P4
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