TBS Installation Manual
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2D IRON & 3D AIR
TBS 2D IRON 3D AIR Mounting and Installation Guideline
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TBS-056-057
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Rev 09-2023
page 14 of 21
5.4
General Purpose Input / Output
5.4.1
General Purpose Inputs
Two general purpose inputs are available on a detachable wire terminal block. These inputs can be used
for interconnection with a door monitoring switch, request to exit button or other equipment.
GP IN pull-up resistor
Input Configuration
Input activated by
without
Standard
0 VDC logical low
5-30 VDC logical high
installed
Input with selectable pull-up resistor value*
ground line
* I = maximum current [A] for the device connected to the input
GP IN pull-up resistor value R = I * 105
The inputs are optionally activated either by grounding the input line or by applying a voltage to the
input line. For each input independently, the desired operating mode is selected by inserting or
removing a resistor to a respective GP IN pull-up resistor socket on the mainboard.
•
Resistor is not used - the input is activated by applying a voltage (5-30V DC).
•
Resistor is installed - the input is activated by grounding the line. The correct resistor value
needs to be properly calculated to not damage the board.
If none of the GP IN pull-up resistors are connected, GPIN works in standard configuration, with 0V
logical low, and 5-30V logical high.
NOTE:
It is recommended to connect ground for reference.
5.4.2
General Purpose Outputs
The range of the output voltage can be selected between VCC and 5V level using the jumper
configuration on the left side of the board.
Label on TBS Terminal
Name
Voltage Level
G
Ground
O1
Output 1
0V Low - (VCC or 5V) High
G
Ground
O1
Output 2
0V Low - (VCC or 5V) High
The output should always be used with the power ground for reference.
