PRASTEL M/RS2E Guia De Inicio Rapido página 2

1. GENERAL INFORMATION
The M/RS2E receiver integrates the function of decoder of Multipass and Multipass Roll codes.
It is equipped with a memory capable of memorising up to 200 different codes generated by transmitters of the Multipass and Multipass Roll family.
2. ROLLING CODIFICATION
The purpose of this codification is to prevent the possibility of violation of the code by capture and retransmission. Rolling codification 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. TECHNICAL FEATURES
Power supply
Average Work/Rest consumption
Reception frequency
Frequency stability
Sensitivity
Passband
Code
Number of codes memorisable
Number of outputs
Type of output for M/RS2E
Output
Contact capacity
Signals
Working temperature
Storage temperature
Size / Weight
4. CODE PROGRAMMING AND CANCELLATION
Operations of inserting a new code into the memory and cancelling the whole list of codes can be carried out on the receiver.
Programming
•
Power up the receiver correctly.
•
Press button P1: the red LED lights up indicating that programming is in progress.
•
Carry out a transmission by pressing any transmitter button.
•
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 P1 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
•
Press and hold down button P1 until the red LED starts flashing
•
Press button P1 again within 6 seconds to confirm cancellation. Confirmation is indicated by the LED flashing with greater frequency.
5. CHANNEL ADDRESS AND RELAY OPERATING MODE
To select the channels, refer to fig. 1 and operate as follows:
•
only channels 1 and 3 can be selected for output A (set by means of jumper JP4)
•
only channels 2 and 4 can be selected for output B (set by means of jumper JP3); moreover, for channels 2 and 4, it is possible to select the operating
mode of the monostable, bistable, timed relay by means of jumper JP2, (timing from 10 to 170 sec. regulated by means of trimmer TR1)
PRASTEL s.r.l. Via del Vetraio, 7 40138 Bologna Italy - Tel. +39-51-533472 Fax +39-51-538460
mrs2e 15/06/99
( UK ) APRIL 1998
24 V ac / dc
25 mA/45 mA
433.920 MHz
± 100 kHz
1.4 µV
> 25 kHz
Digital with number of bits variable from 40 to 54
200
2
output A: channels 1 and 3: monostable
output B: channels 2 and 4: monostable, bistable, timed
Relay
0,5 A @ 24 V ac/dc
red LED
-10/+55 °C
-40/+85 °C
100 x 63 x 17 50g
E-mail: info@prastel.com - Web site: http//www.prastel.com
M/RS2E