1186 - 8-Channel Telephone Activated Relay Board

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).

It includes matching transformer and plugs for connecting in the telephone line. Solder posts for relay and power connections. Solder provided with kit version. Both KT and AS versions supplied with relays for 4 positions only. Additional relays can be purchased for populating the remaining 4 positions (see Order Code RLYSPDT10A below).

Technical Specifications
Supply Voltage	12Vdc, 0.5A (Order Code PSU446 with connector 778.106)
Outputs	8 (Four positions populated with SPDT Relays)
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	RJ11 Sockets & Solder Posts (see text for full details)
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) more
Documentation	User Manual

• Kit version includes solder for assembly.
  

• Power Supply: Regulated 12Vdc (Order Code PSU446 with connector 778.106 is suitable)
• BT to RJ11 Phone Cord (Order Code 285.147 for UK phone systems)