Ramsey DCI1 DTMF Controller Interface User & Service Manual PDF (EN)

Have you ever wished you could call home and turn on the lights late at night before you pull in the driveway? Finally, an easy way to remotely control just about anything with the touch of a button! The DCI1 offers full control of four independent relay contacts for quick and easy custom applications! Remote control almost anything from any DTMF device! Call in from the road to turn on your lights… and more! User configurable security code for your protection Easy administrative security code bypass for free running DTMF control makes custom applications even easier! User feedback tones confirm remote operation success! Full microprocessor control for simple, but comprehensive features.

FLASH memory holds security code data for years! Decodes all sixteen DTMF codes! Built-in RJ-11 jack for easy interfacing with your phone line! DCI1 1 DTMF CONTROLLER INTERFACE Ramsey Electronics Model No. DCI1

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DCI1 2 RAMSEY TRANSMITTER KITS • FM100B Professional FM Stereo Transmitter • FM25B Synthesized Stereo FM Transmitter • MR6 Model Rocket Tracking Transmitter • TV6 Television Transmitter RAMSEY RECEIVER KITS • FR1 FM Broadcast Receiver • AR1 Aircraft Band Receiver • SR2 Shortwave Receiver • SC1 Shortwave Converter RAMSEY HOBBY KITS • SG7 Personal Speed Radar • SS70A Speech Scrambler • BS1 “Bullshooter” Digital Voice Storage Unit • AVS10 Automatic Sequential Video Switcher • WCT20 Cable Wizard Cable Tracer • LABC1 Lead Acid Battery Charger • ECG1 Electrocardiogram Heart Monitor • LC1 Inductance-Capacitance Meter RAMSEY AMATEUR RADIO KITS • DDF1 Doppler Direction Finder • HR Series HF All Mode Receivers • QRP Series HF CW Transmitters • CW7 CW Keyer • CPO3 Code Practice Oscillator • QRP Power Amplifiers RAMSEY MINI-KITS Many other kits are available for hobby, school, Scouts and just kits are always under development.

Write or call for our free Ra DCI1 INSTRUCTION MANUAL Ramsey Electronics publication No. MDCI1 Rev 1.1 First printing: April 2002 COPYRIGHT 2002 by Ramsey Electronics, Inc. 590 Fishers Station Drive, Vi 14564. All rights reserved. No portion of this publication may be copied or dup written permission of Ramsey Electronics, Inc. Printed in the United States of

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TABLE OF CONTENTS Introduction .................................4 Circuit Description .......................5 Schematic Diagram ....................8 Parts Layout Diagram .................9 Parts List ....................................10 Learn As You Build .....................11 DCI1 Assembly ...........................12 Custom Case Assembly .............18 Using Your DCI1 .........................19 Wiring & Custom Applications .....22 Troubleshooting Guide ...............24 DCI1 Specifications ....................26 Conclusion ..................................26 Warranty .....................................27 RAMSEY ELECTRONICS, INC.

590 Fishers Station Drive Victor, New York 14564 Phone (585) 924-4560 Fax (585) 924-4555 www.ramseykits.com DCI1 3 Ramsey Publication No. MDCI1 Price $5.00 KIT ASSEMBLY AND INSTRUCTION MANUAL FOR DTMF CONTROLLER INTERFACE

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INTRODUCTION The DTMF Controller Interface, or DCI1 for short, was designed to meet the needs of the home automation experimenter. The easy hookup interface and simple operational control lends itself well for a variety of applications. The DCI1 continually monitors your phone line (or just about any other DTMF audio source) and looks for the proper user programmed security code. Once it is heard, the user may select which of the 4 trigger relays to turn on or off. Feedback tones from the DCI1 are then sent back over the line to confirm your selection. No more wondering if your commands are carried out as is commonly found with other similar devices!

Now you can call home and, when your answering machine picks up, control lights, security systems, or just about any number of other custom applications! The DCI1 is a slim line unit with four 5 Amp (1250VA AC/150W DC) relay outputs, each with its own sure grip screw terminal. It requires a 12 to 15 VDC 300 mA (positive tip) power source for operation; our standard AC125 110 VAC power adapter works well. A matching case & knob set is also available to make your kit look more professional and attractive in any setting (not to mention cover up any potentially hazardous voltages you may be switching). Note: The DCI1 does not answer or seize control of your phone line or other audio source.

An answering machine or similar device is needed to retain control on a phone line. The DCI1 simply “listens” to the line. DCI1 4

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