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RS-232/IR connector
The QueBec has one RS232/IR port, which can be configured to be used as either RS-232
transmitter or IR emitter.
PIN 5 <-> GND
PIN 2 <-> Tx/IR
IR-Emitter
When used as RS-232 transmiter port:
Connect the device to Tx/IR and GND, as
shown above.
When used as IR port: Connect the IR
emitter white striped wire to Tx/IR and
black wire to GND as shown above.
Input/Output connector
The QueBec has 3 Digital I/O connections; each of these
can be configured as either input or output. As inputs
they can be used together with an external keypad, a
PIR (movement) sensor, or a keypad lock. As output they
can be used to power on external equipment or control
a screen or lift.
The ports are not potential free; external relays may be
required to prevent ground loops.
When used as an output, a connection is active low:
when the software shows activated, the pin is tied to
GND through a FET transistor (also called open drain/
collector function). Each output can draw up to
24VDC/500mA.
When used as an input, the voltage present at the
connection has to be below 1 VDC to be accepted as
LOW, and above 4 VDC (but below 24 VDC) to be
accepted as HIGH. The inputs are default HIGH and
must be connected to ground in order to change state.