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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