TR-HT2xx LED Controller - User Manual
6.5
Digital outputs
The digital outputs fitted to the TR-HT can be used for timing controller
operation. This is described in
Section 8, Digital inputs and outputs
.
The digital outputs are open drain (or open collector) as shown in the
circuit diagram below:
The voltage across the output must not be greater than 24V and the
output can only sink up to 50 mA. If the output is shorted to a voltage
higher than 5V, the output may be damaged.
The connector's pin descriptions are shown below:
Connector pin
Function
Pin 1
Open drain output 1
Pin 2
Open drain output 2
Pin 3
Open drain output 3
Pin 4
Open drain output 4
Pin 5
Common GND for outputs 1 to 4
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22
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