Digital Output - Nexcom VTC 6210-R Series User Manual

Appendix C: Signal Connection of DI/DO

Digital Output

CN15 connector for GPO signal (digital signal output)
The CN15 connector has 4 digital output channels. The signal connection of
CN15 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 SW2 needs to switch to "ON" state. The GPO signal will have a pull up
resistor to 5V internally when you switch "SW2" 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.
Internal
VCC5
GPI4 16
GPI3 15
GPI2 14
GPI1 13
GPO4 12
GPO3 11
GPO2 10
GPO1 9
GPO
Port
Register
1 HIGH
0 GND
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External
7
GPIO_GND
CN14
Dry Contact
Each channel can accept 3~19Vdc voltage. And it is able to drive 150mA
current for low level.
The SW2 needs to switch to "OFF" state. The GPO signal will no have a pull
up resistor internally when you switch "SW2" to "OFF" state.
The figure below shows how to connect an external input source to one of
the output channel.
GPO4
GPO3
GPO2
GPO1
GPI4
GPI3
GPI2
GPI1
GPO
Port
Register
1 OPEN
0 GND
45
Internal External
16
15 7
14
13
12
11
External power
10
GPIO_GND
9
Resistor
CN14
VTC 6210-R Series User Manual