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12
OpenTracker 2.4
User Manual (1.4.0)
Digital Outputs
Parameter
Min.
Typ.
Max.
Unit
Relay Output Current
0.2
0.5
A
Relay Output Voltage1
0
-
36
V
Notes:
1. Relay driving outputs OUT1 and OUT2 are open-drain outputs suitable for relay coils, which should be
powered externally from the same voltage as the whole device. They are protected against voltage
transients and short-circuits.
Hardware versions earlier than “rev2.4” do not have short-circuit protection, if that is required insert an
external fuse in series with each output.
Example Relay connections
In this example we are using relays with a rated coil voltage of 12V DC. The same voltage is used for
switching contacts to power 12V rated devices like Lights/Motors/Horns etc.
When the software activates a digital output, the pin OUT1/OUT2 is connected to ground internally, allowing
current flow inside the coil and the relays can switch.
Содержание OpenTracker 2.4
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