Digital Output - Nexcom VTC 6222 User Manual

Appendix C: Signal Connection of MCU DI/DO

Digital Output

J13 connector for GPO signal (digital signal output)
The J13 connector has 4 digital output channels by default.
The signal connection of J13 supports two connected methods for output
signal type. The output signal has two states, one is low level (driven to 0V
from GPO signal) while the other is open (high voltage is provided from
external device).
Wet Contact (default)
The JP5 needs to switch to short 1-3, 7-9, 2-4 and 8-10 individually. The
GPO signal will have a pull up resistor to Voltage internally. The output
signal has two states, one is low level (driven to 0V from GPO signal) while
the other is high level (driven to Vin Voltage).
The figure below shows how to connect an external input source to one of
the output channels.
VCC
1K 1K
CON_GPI1 10
CON_GPI2
CON_GPI3
CON_GPI4
CON_GPI5
CON_GPO1
GPIO_PW
GPIO_GND
GPO
Port
Register
1 HIGH
0 GND
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Internal External
J13
9
8
7
6
5
4
3
GPIO_GND
2
1
Dry Contact
Each channel can accept 9~48Vdc voltage. And it is able to drive 4.5~24mA
current for low level.
The JP5 needs to short 3-5, 9-11, 4-6 and 10-12 individually. The GPO signal
will not have a pull up resistor internally.
The figure below shows how to connect an external input source to one of
the output channels.
CON_GPI1
CON_GPI2
CON_GPI3
CON_GPI4
CON_GPI5
CON_GPO1
GPIO_PW
GPIO_GND
GPO
Port
Register
1 HIGH
0 GND
63
Internal External
J13
10
9
8
7
6
5
External power
4
GPIO_GND
3
2
1
Resistor
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