RX-4MHCS
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User Manual
Technical features are subject to change without notice. AUREL S.p.A. does not assume responsibilities for any damages caused by the de ice’s misuse.
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Via Foro dei Tigli, 4 - 47015 Modigliana (FC) – ITALY
Phone.: +39.0546.941124 Fax: +39.0546.941660
http://www.aurelwireless.com
- email:
16/01/2007
Page 2of 3
How o ge s ar ed
The oltage supply to the module (pin 15) shall be 5Vdc. Pin 9 shall be connected to the push button for
programming the recei er, 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.
E ery output of RX-4MHCS is dri en by a transistor in open collector configuration, able to bear max current
of 100 mA. In stand-by mode transistor is cut off while when triggered is in saturation region. Output can be
programmed to work in mono-stable or bi-stable mode, e ery one independent from the others.
In mono-stable mode output is acti e for all the time the corresponding push button is pressed in the
keyfob, releasing the button output switches off.
In bi-stable mode output switches its state e ery time the corresponding push button is pressed in the
keyfob (from acti e to inacti e and ice ersa). The two operati e modes are independent each other, that
means it’s possible to program some outputs as mono-stable and some others as bi-stable.
If an inducti e load is connected to the output (i.e. a relay) it’s necessary to pre ent oltage transients by
putting a diode in parallel to the inducti e load. LED anode shall be connected towards the output of the
module.
In order to enable the recei er to acti ate its outputs it’s necessary to store in the RX-4MHCS the keyfobs
codes. To carry out this operation it’s necessary to approach the keyfob to the recei er. By pressing a push
button (it doesn’t matter which one) of the keyfob during the auto-learning phase, the recei er RX-4MHCS
recognises the button pressed and all other channels automatically.
Only the keyfobs with HCS encoder shall be recognised by the recei er RX-4MHCS. Keyfobs not programmed
or programmed with manufacturer code different from the one used by AUREL would not be recognised.
Based on reasonable demand, Aurel is willing to program the recei er RX-4MHCS with specific manufacturer
code indicated by the customer.
Ground plane
The circuit must be double layer. Ground plane must surround at the best the welding area of the recei er.
For further info please refer to the user manuals of AUREL’s recei ers.
disaccoppiamento
Linea 50 ohm
Connessione
Antenna
