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

ASSEMBLY INSTRUCTIONS FOR CUSTOM CASE The enclosure is a key element to the overall pride you will have upon com- pleting your Ramsey kit. The enclosure will show how you were able to “build from scratch” a commercial piece of high-tech electronics. For some of us, the enclosure will also hide a number of “not-so-pretty” assembly mistakes. Once the kit is enclosed, your friends will never know that you were new to soldering. Finally, the enclosure case will protect your electronics from many possible causes of damage so that you can receive years worth of enjoyment using, talking about, and remembering the fun you had building your kit. In short, TAKE YOUR TIME when assembling the enclosure.

This is the part that you and your friends will look at and admire for years! € 1. Lay the front and rear plastic plates over their corresponding labels to verify which sticker goes with which panel. You’ll want to work with one panel at a time to avoid possible mix-ups. € 2. Remove the backing material from one of the stickers and line it up properly on its pre-punched panel. Make sure that they are aligned cor- rectly before allowing them to touch the plastic plates. They stick the first time; line them up right! € 3. Use a sharp hobby knife to cut out the holes in the labels along the pre-punched holes.

A short sawing motion from the front side works well around the inner circumference of the holes. € 4. Repeat the above steps for the other panel. € 5. Insert the board into the case with the buttons and LEDs extending through the holes in the front panel. € 6. Insert the rear panel into the grooves on the back of the base tray. € 7. Secure the PC board to the bottom base tray with 4 short Phillips head screws. € 8. Mount the top cover using the 1” screws after you have completed the testing phase and final hookup wiring. Use of a case set with your DCI1 is highly recommended.

The voltage on the exposed traces near the relay contacts (bottom side of K1 through K4 and the clamping screws themselves) may be potentially as high as 120 VAC depend- ing on your target hookup configuration. The added security from using a plas- tic (non-conductive) enclosure ensures protection from any potentially lethal voltages. Great care should be taken with any wiring arrangement to guarantee the safety of the operator and any others that may come into contact with this unit DCI1 18