HORN

[avag...@gmail.com]

Hella horn for an intermittent alarm.

which pin is ground ?

how tell ?

is either pin grnd-pwr ?

https://photos.google.com/photo/AF1QipNrdTQBNCwsS1ZJ85A2oBzhzAWf7oZ1B-iTQkit

[John Robertson]

No picture (bad link).

Usually alarm horns are polarized - perhaps one pin has a red dot
(positive)?

Or do a search online for that make and model, pretty good chance
someone has put up the info you need!

Like this:

https://www.hella.co.nz/en/products/accessories/horns/

John :-#)#

--
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"Old pinballers never die, they just flip out."

[pf...@aol.com]

If the contacts (Usually push-on make connectors) are both isolated from the body of the horn, it makes no difference which one is "hot" and which one is "ground". But, use a VOM to check each terminal for continuity to the mounting studs - and if there is continuity, that one will be the Ground.

Pretty basic if this is for an automotive application where the frame often serves as a common ground. But, again, these days, alarm systems try to isolate key components and provide separate grounds so that they are less easily defeated.

Peter Wieck
Melrose Park, PA

[Allodoxaphobia]

"Sign in with your Google Account"

Are you freakin' kidding!!!!!!!!

[avag...@gmail.com]

On Tuesday, June 7, 2016 at 12:46:08 PM UTC-4, avag...@gmail.com wrote:

the 'S' on https: blocks transmission into various servers. Remove the S and retry.

No continuity. I found, and not this morning, a small chart in Goo Images defining the horn back as either post for +/-

I have forgotten why that was so decribed ....duh

now I find a method for the higher level Hella horn

scroll down into

http://mazda3revolution.com/forums/2014-2016-mazda-3-skyactiv-how-guides/40209-diy-installing-hella-horns-2014-mazda-3-a.html

Trying to hook an Omega alarm system into a intermittent blow horn mode with relay for power from batt...horn is on van roof....with flasher on ground side horn. The wiring works but shortly...blowing 2 dorman hi decibel horns.

local goons broke into van n crosswired relays....they have a tech....after hearing the horn go off at Walmart.

We then moved shopping to the adjacent town.

[avag...@gmail.com]

expected the pin numbers indicating grnd power in Euro style.