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9 Input 1:
same as input 4 (Pin4)
10 +U:
positive voltage supply between 2.0 und 3.6 V DC
11 GND:
Ground, 0V DC
12 n/c
do not connect
13 Output
to control a piezo transducer (high active)
with acknowledgement of the receiver:1 Beep for ON- and 1 Beep for OFF
no acknowledement: triple Beep after 2 s for ON-failed and another triple Beep 2 s later for OFF-failed
14 Output
to control a LED (low active) as a function of the receivers supply voltage (the values depend of the
receivers circuit)
receivers supply voltage high: LED remains off
receivers supply voltage mid range:
receivers supply voltage low:
15 Antenna
Connection for an antenna ( 173mm wire) or 50Ohm-coaxial cable.
16 Antenna GND Connection for the shield of a 50Ohm-coaxial-cable
4 Operation
For the location of the transmitter module, select a place which is not shielded by conducting objects and position the antenna in such
a way that it is not subject to interference from the rest of the circuit and is parallel to the transmitter antenna.
Pay attention to the correct polarity when performing the connections and make sure the technical data are kept
within specifications.
Caution: If the voltage supply exceeds the specified voltage, the electronic components may be destroyed, for
example, when using unregulated voltage sources.
Antenna: The most simple antenna is a wire with a lenght of 173mm . But you may connect also a 50 Ohm coaxial cable if an antenna
has to be mounted away from the module.
Supply: Connect the positive supply voltage to +U (Pin10) and the negative voltage to GND (Pin11).
Caution:
Absolute maximum of supply voltage is 3.6 V.
Higher voltages will damage the module !
Transmitting: In order to realise a first test of functionality it is sufficient to connect one of the 4 digital inputs (4, 5, 8 or 9) to GND
(11). All other inputs may remain open and the 2 LED´s above are not necessary for function.
Learning the transmitters code: Please take into account that the receiver has to learn first the transmitters address (please refer to
the receivers manual).
Please refer to the circuit example in the annex.
LED flashes quickly
LED flashes
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