DSC 3000 issue

The panel has to have approriate zones and outputs programmed before you can attach wires and make smokes work.

you can try www.tech-man .com for manual

The 3000 has a dedicated "fire" zone. There should be a resistor across the terminals. The first thing you have to do is determine whether the wires to the smokes are good. You'll need to meter them out to ensure you have continuity on all four. You'll have to move the resistor to the "end of the line" (the last smoke detector in the loop), then terminate the wires with red and black as "+" and "-" respectively and white and green across the common and normally open relay terminals on the smoke. The resistor attaches to the green and white. The green and white wires should be terminated such that green goes to "common" between zone 1 and 2, and white on the "fire" terminal. Then connect your red and black to aux power "+" and "-". TEST YOUR SMOKE DETECTOR!!

Good luck!!!

That is an old piece of gear. Maybe you might want to consider getting something that is still in current production (and maybe something not made by DSC) In any case I emailed the manual to you.