REMOTE CONTROL BY TELEPHONE

It is also possible to check the condition of a switch (open or closed). Example : when you are away on holiday, you may switch the lights on and off from time to time, check the alarm or turn on the heating before returning home. A major advantage of this circuit lies in the fact that audio signals are used to tell whether a specific output has been turned on or off. Operation is protected by a user defined code, which is simply keyed in from the telephone keypad. Specifications Α relay is included for one output: 10A / 250VAC Αutomatic pick-up can be selected for ± 8 or ± 3 rings Αutomatic hang-up if no code is entered within 20 seconds Supply voltage: 12VAC / 300mA Dimensions: 105 x 130mm / 4.1 x 5.1″