The voltage supply to the module (pin 15) shall be 5Vdc. Pin 9 shall be connected to the push button forprogramming the receiver, pin 14 shall be connected to the anode of LED to control that programming has been carried out (output current is internally limited to around 20 mA by a 180 ohm resistor). External antenna shall be connected, by utilizing for example a piece of wire 17 cm long and a surrounding widespread ground plane(see picture 1). Each outputs of the receiver RX 4MHCS-4B is driven by a transistor in open collector configuration, able to bear max current of 100mA.

In stand-by mode transistor is cut off while when triggered is in saturation region. The outputs are active all the time you press the corresponding button onv the transmitter, releasing the button, output switches-off. If the output is connected to an inductive load (eg a relay), it is necessary to prevent voltage transients by putting a diode in parallel to the inductive load.

The anode of the diode is connected to the output of the module. In order to receive, it will be necessary memorize the transmission codes of the matched transmitter in the RX 4MHCS-4B module. To carry out this operation is necessary to have the transmitter close to the receiver.

By pressing a button (it doesn’t matter which one) of a matchable keyfob during the auto-learning phase, RX 4MHCS-4B will recognize the pushed button and automatically also the other buttons will be recognize. Only transmitters with HCS coding and ‘Aurel Standard Code’ will be recognized by RX 4MHCS-4B receiver. Transmitters not parameterized or with a different manufactured code will not be matchable. Based on reasonable demand, Aurel is willing to program the receiver RX 4MHCS-4B per with specific manufacturer code indicated by the customer.

• Power: 5V dc
• Power consumption: 3 mA
• Frequency: 433.92 MHz
• RF sensitivity: -106 dBm
• open collector output: 100 mA
• Working temperature: -20 ~ + 80 ° C
• Dimensions: 39.5 x 17.5 mm