TT-3026L easyTrack Transceiver
Installation Manual
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Voltage allowed between GND and the output pin is
0V to 5V.
Maximum allowed current into the I/O pin is 25mA.
Note: There is no current limiter integrated in the
output, thus the user must ensure, that the load
connected is within limits.
When used as inputs, the ports have the following
characteristics:
Internal 2.2kOhm pull-up resistor to 3.3VDC.
To guarantee a logic low input signal, the input
voltage must be < 0.5V.
To guarantee a logic high input signal, the input
voltage must be >3V.
Voltage allowed between GND and the input pin is 0V
to 5V.
WARNING
: When using the I/O ports, it is important not to
apply voltages between GND and the I/O pin higher than 5
VDC as this can cause damage to the transceiver. Negative
voltages are not allowed either.