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Digital input, External internal, Dry contact – NEXCOM VTC 1010 User Manual

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67

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