Re: Vista 20p wiring question.

[Michael <sirflannelS@xxxxxxxxxxxx>]

Depending on what system you use, there are makers who have keypads
with built in zone expanders (First Alert, Napco, DMP just to name a
few, I'm sure there are more). I can't think of a way to use 4
conductors for a 4 wire keypad AND a door contact. I've had to three
wire a motion before, but I'm not familiar with a door contact and a
keypad on one four couductor. The zone expander keypad would be a
better option if it's available to you



On Thu, 09 Aug 2007 05:02:47 GMT, "JOhn" <johnny2@xxxxxxxxxxx> wrote:

>Ive been out of the business for a few years, so Ive forgotten how to do
>this:
>
>Wire the E/E door, using the 22/4 keypad wire.
>
>Basically, the front door didnt get wired at the rough-in stage.  Its
>impossible to do now, and I dont want wireless.  The keypad is right next to
>the door in question.  I seem to recall there is a way to wire them both
>together on  the one 4 conductor wire.
>
>Any ideas would be appreciated.
>
>Thanks.
>