Led on ext 3 relay or no relay

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nhoj_yelbom

Member - Posts: 46

Joined: April 15, 2006

Posted: April 17, 2006 at 8:16 PM / IP Logged

i want to turn on the leds i have in my cup holder with the ext. 3 function on my alpine sec-8028 alarm. would i need a relay for this, and how would i go about wiring this up?

Thanks, John

KPierson

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This member consistently provides reliable information

Joined: April 14, 2005

Location: Ohio, United States

Posted: April 18, 2006 at 8:09 AM / IP Logged

It depends on the output of your alarm. Typically outputs are between 100 and 500 mA. It also depends on how many LEDs you have and how much current you want each one to run off of.

You would hook the ext output to the (-) side of the LEDs and then hook the (+) side to 12vdc. You will also want to use a current limiting resistor, based on the number/current of your LEDs. You will also need a latching ext channel.

Kevin Pierson

nhoj_yelbom

Member - Posts: 46

Joined: April 15, 2006

Posted: April 18, 2006 at 8:38 AM / IP Logged

it has a 200 mA output and i want 12 volts into the leds, ive already got all the resistors set up. my alarm does have a latching ext channel, its ext. channel 3 i beleve , so just hook it straight up?

KPierson

Platinum - Posts: 3,527

Joined: April 14, 2005

Location: Ohio, United States

Posted: April 18, 2006 at 11:51 AM / IP Logged

You should be able to hook it up directly if you have the resistors in place.

Kevin Pierson

nhoj_yelbom

Member - Posts: 46

Joined: April 15, 2006

Posted: April 18, 2006 at 8:16 PM / IP Logged

i hooked it all up but they turn off when i release the the button, how can i wire it up so they will stay on?

Thanks, John

nhoj_yelbom

Member - Posts: 46

Joined: April 15, 2006

Posted: April 18, 2006 at 9:00 PM / IP Logged

anyone?

nhoj_yelbom

Member - Posts: 46

Joined: April 15, 2006

Posted: April 18, 2006 at 9:01 PM / IP Logged

oh yeah its set to continuos output

KPierson

Platinum - Posts: 3,527

Joined: April 14, 2005

Location: Ohio, United States

Posted: April 18, 2006 at 9:20 PM / IP Logged

You need to set it to latching output, if possible.

Kevin Pierson

nhoj_yelbom

Member - Posts: 46

Joined: April 15, 2006

Posted: April 18, 2006 at 9:52 PM / IP Logged

thanks

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Led on ext 3 relay or no relay

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