does this exist?

im kinda new to this industry, so im not sure. is there a kind of relay that when you give it a pulse(+or-) it turns something on and keeps it on. untill it gets the same (+or-) pulse agian and it turns it off. thanks for the helphey, everyone has got to start somewhere. but ill learn

Latching relay on/off with a single pulse. Certified Security Specialist

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So Auex, are those just standard relays your using there, cause I have never seen that done before, I always thought you have to have a specific latching relay. If that is actually just normal relays then does it need one pulse to activate then the opposite to disengage or is it just always the same pusle. IE + to latch and - to unlatch or is it + to latch and + to disengagedouble-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

It is the diagram from this site. Yes they are just spdt standard relays. This diagram requires a single negative pulse to activate and a second negative pulse to deactivate. There is another diagram for doing this with out diodes but requires another relay.   The relay second from the left is the relay that latches. All it does is activate a relay to send an output out and ties it into the same pin that activates the relay causing the relay to latch and stay active, you need another relay to cut the power to the other side of the coil. You can use the basic setup and use 2 switches and 2 relays to do a simple latching setup. Certified Security Specialist

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Thats awsome, now I have something to do at work tomorrow. (gettin a little slow at the old FS :) )double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

Auex: i have a friend who wants to add a window module that he has already bought but he doesnt have a timed (-) output on his alarm. he however does a (-) pulse trigger for trunk release that he doesnt use (the window module uses a - trigger). Can i use the above 5 relay diagram and then convert the output using another relay and get the result i am looking for? Also would using the relays still allow the alarm to close the windows when armed or is that a feature he will have to do without?Just A Hobby Installer

of course the cost to just buy the DEI 528 or 611 modules is probably cheaper than 5 relays and sockets... and a heck of a lot cleaner install..... not to mention the fact that the 611T is far more versatile....Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

What is cost of DEI's pieces?Certified Security Specialist

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Looks to be about $15 around the net.. No idea what retail is maybe $30? Definately beats wiring up 4 - 5 relays unless your bored.. Mike