PRASTEL MR Serie Guia De Inicio Rapido página 3

MR series Receivers
1. GENERAL DESCRIPTION
The MR receiver integrates the functions of receiver and decoder of standard and 'rolling' codes. It's memory, is capable of memorising
from up to 1000 different codes generated by transmitters of the MULTIPASS and MULTIPASS Roll families. It's possible to link
whatever transmitter button to whatever relay mounted on the receiver.
Intended use of the equipment: radio receiver in garage-door systems.
2. ROLLING CODIFICATION
The purpose of this codification is to prevent the possibility of violation of the code by capture and retransmission. Rolling code
involves the transmission of a batch of bits consisting of a constant part, different for each transmitter, the channel bits related to the
transmitter switch activated plus a part that varies with each transmission in a pseudo-random manner (rolling code) in accordance with
a proprietary Prastel algorithm. Configuration of these bits varies unpredictably between two consecutive transmissions. The receiver,
by self-learning, memorises the constant part of the code of each transmitter plus the appropriate rolling code and updates the latter at
each transmission. The transmitter is recognised only if it sends a rolling code corresponding to the 255 configurations subsequent to
the last recognised transmission. Nevertheless it allows realignment and recognition of a previously memorised transmitter that has
overrun the permitted interval (e.g. due to an excess of unrecognised transmissions or on replacement of power supply batteries) by
pressing and releasing the transmitter learning button; in this way the correctness of the code is analysed, maintaining the advantages
of the variable codification. RPA Function (Transmitter remote self-learning command).
3. MAIN TECHNICAL FEATURES
Power supply
Average Work/Rest consumption
Number of codes memorisable
Number of channels
Types of output
Output
Contact capacity
Signals
Working temperature
Storage temperature
Size / Weight
Type of receiver
MR2/MR4
MR2E/MR4E
MR2F/MR4F
MR2K/MR4K
MR2N/MR4N
MR2S/MR4S
4. SELECTION OF SUPPLY VOLTAGE
The MR receiver can be supplied through terminals 1 and 3 (see fig) with 24 VAC/DC or 12 VAC/DC.
5. CODE PROGRAMMING AND CANCELLATION
Operations of inserting a new code into the memory and cancelling the whole list of codes can be carried out using the same button
"ENTER RADIO" on the receiver.
Programming
•
Power up the receiver correctly.
•
Press button "ENTER RADIO": all red leds lights up for 2 sec. Then only the first led remains on to indicate that
first relay is selected.
•
Select the relay you wish to link to the transmitter pressing "SET" button repeatedly.
•
Carry out a transmission pressing any transmitter button. Each button identifies a channel. Remember to repeat
the procedure for all transmitter buttons (channels) you want to program on the receiver, each time selcting the
desired associated relay.
•
If led flashes slowly, insertion is running. When done the led returns in non-flashing state.
•
If a led begins flashing quickly, the channel has already been programmed and is associated to the flashing
led. Carry out another transmission with the same button to update the programmation to selected relay.
•
If all red leds flash at the same time, memory is full. Insertion is not done.
•
The code is inserted into the memory. The led flashes during insertion. At the end the led returns to the non-flashing state,
indicating that a new code may be inserted.
•
Memorise all the transmitters by carrying out a transmission with each one.
•
At the end of the operation press button "ENTER RADIO" again to exit from the procedure. The led goes out. Exit from the
programme comes about automatically in any case 10 seconds after the last memorisation.
•
The codes remain in the memory even if the receiver's power supply is cut.
Total cancellation of codes
•
Hold button "ENTER RADIO" pressed until all the red leds start flashing.
Press button "ENTER RADIO" again within 6 seconds to confirm cancellation. Leds are in non_flashing state during operation.
Confirmation is indicated by the led flashing with greater frequency.
ENGLISH
12 - 24 VAC/DC
90 mA / 20 mA
1000
4 for 4 channels; 2 for 2 channels
monostable, bistable and timed
Relay
0,5 A @ 24 VAC/DC
Red led: 4 on 4 channels, 2 on 2 channels
Green Led: 1 for ON/OFF
-20/+55 °C
-40/+85 °C
77 x 80 x 38 mm – 250 g.
Reception frequency
40.685 MHz
433.92 MHz
26.995 MHz
30.875 MHz
306 MHz
868.350 MHz
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ISMREU_03_09.doc