Relay for dummy!!

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=5420
Printed Date: June 28, 2025 at 12:24 AM

Topic: Relay for dummy!!

Posted By: Cooter
Subject: Relay for dummy!!
Date Posted: November 13, 2002 at 4:27 PM

Ok so I used to install remote starts, and alarms professinally some years ago. I would like to start doing it again. I just would like a littl einsight, a diagram would be great if available. basic relay uses are:

NEG. To Pos.

Pos. to Neg.

Low volt. To High Volt.

High volt to low volt.

If someone has so diagrams to explain what pins connect to where, I would very much like to have them. THANKS

Replies:

Posted By: djfearny2
Date Posted: November 13, 2002 at 4:36 PM

HIGH VOLT TO LOW VOLT NOT happening.,

neg to pos

pin 86and87 pos 12

pin 30 output

pin 85 negative trigger.

basically whatever you want to come out of pin 30 you need to put into pin 87 and use a pos and negative through pin 85and 86 to activate it .

low volt to high volt is

pin 87 pos 12

pin 85 ground pin 86 pos trigger 97a not used and pin 30 is your output.

pos to neg is

negative on both 86and 87 87a not used , pos 12 signal to pin 85 and 30 is output.

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Jon
Installer/Help Technician
---coral springs florida---
mecp certification is not always needed. I have it and it has not helped me out at all. my experience out shines it.

Posted By: Cooter
Date Posted: November 13, 2002 at 4:40 PM

So djfearny yo say That it sno possible to change a high voltage pulse into a lower voltage pulse?

Posted By: Velocity Motors
Date Posted: November 14, 2002 at 5:38 AM

Here is some visual help with the relays: https://www.velocitymotorsport.com/install_notes/install_main.htm go to " CONVERTING POLARITY "

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: securinu
Date Posted: November 14, 2002 at 6:09 PM

high volts to low would use a resistor.