LOW RANGE RF RELAY CONTROL BOARD

THE RF BASED RELAY CONTROL IS CAPABLE OF COVERING AROUND A RANGE OF 1000 METERS WITH ERROR-FREE OPERATION. IT CONSISTS OF A CONTROL UNIT AND A RELAY UNIT. THE CONTROL UNIT REQUIRES 3.6 V FOR OPERATION WHILE THE RELAY UNIT REQUIRES A 12 V DC SUPPLY. THE BATTERY LIFE IN THE CONTROL UNIT CAN COME UP TO 1 YEAR AS THE UNIT GO TO SLEEP MODE WHEN NOT IN OPERATION. THE RELAY UNIT CAN BE USED TO DRIVE MAY KIND OF AC CIRCUITS OR DEVICES THAT CAN TAKE UP TO 5A LOAD. THERE IS COMPLETE ISOLATION BETWEEN AC AND DC SECTION IN THE RELAY UNIT PROVIDING COMPLETE RELIABILITY AND ERROR-FREE OPERATION. THE CONTROL AND THE RELAY UNITS ARE CUSTOMIZED ARE ALLOWS ANYWHERE FROM 1 TO 16 RELAYS TO OPERATE IN A SINGLE BOARD. A SPECIAL PROTOCOL HAS BEEN IMPLEMENTED IN THE HARDWARE CALLED CSMA-CA WHICH AVOIDS FALSE TRIGGERS AN COLLISIONS AMONG THE DEVICES OPERATING IN THE SAME FREQUENCY. THE TRANSMIT/ RECEIVE LOOP IS COMPLETE WITH THE CONTROL UNIT RECEIVING THE ACKNOWLEDGMENT FROM THE RELAY UNIT FOR ALL SUCCESSFUL TRANSMISSION.