You can use this DTMF Decoder board to control up to 8 electrical devices simply by calling your phone from any location in the world and making a few key presses.
Each channel has a mains rated 5 amp relay output that can be independently controlled and an LED indicating the relays status. The relay status can also be verified over the phone line. You can use the relays to control any devices you have in your house, office or factory.
4 number user-settable access code for security. The circuit is PIC based for accuracy and reliability. The unit will answer the incoming call almost immediately (1 ring). This setting is not user adjustable. If you require more flexibility please see our 4-Channel DTMF Telephone Remote Control Relay Switcher (3140).
The board includes an impedance matching transformer. RJ-11 telephone Line-in and Extension-Out sockets. Solder posts for relay and power connections. Solder provided with kit version.Product Versions
|Supply Voltage||12Vdc, 0.5A (Order Code 660.446UK with connector 777.001UK)|
|Outputs||8 (Only four positions populated with SPDT Relays in 1186KT and AS1186-4)|
|Maximum Output Load||5 Amps @ 230Vac max. per relay|
|Relay Connections||Common, Normally Open (the Normally Closed relay contact is present but NOT brought out)|
|User Settings||1. Password (4 digits)|
|Board Dimensions||126 x 134 mm|
|Board Connections||2 x RJ11 Telephone Sockets (Line-In / Extension-Out)|
Solder posts for power and relay connections (see Product Versions info above)
|Compatibility||* This product can be connected to any analogue or broadband phone line and both corded or cordless (analogue and DECT) telephone sets and is operated using simple DTMF tones.|
|Product Formats||SELF-ASSEMBLY Electronic Kit (KT)or|
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info