Our Applications & Solutions

DTMF Decoder w/ DPDT Relay

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The Model 3185E Dual Tone Decoder is a microprocessor controlled DTMF decoder. The 3185E is capable of accepting a sequence of one to four DTMF signals, and responds by activating it’s integral DPDT output relay. The relay action may be momentary, latching or toggling. Programming the code sequence is accomplished by digital rotary switches along the front edge of the PC board.


  • CATV Cue Tone Decoding
  • Remote Control Systems

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