ademco 4219 question

technically it makes no sense to run two separate quads one for the keypad one for the 4219 if i were to do that I might as well run a multi conductor and skip the 4219 altogether!

You can do that, they just don't recommend that you do it is all.

Jim Rojas

on cat 5?...ok i know I'll be ok going 100 on direct burial 18/4 then.

tnx

You said an outbuilding, so use 1 wire for the Keypad and 4219 data, then add a power supply inside a small enclosure at the outbuilding is all, to power the keypad, 4219, and devices. Work out the total power draw to get the right Amp Power Supply.

Ive run cat 5 several hundred feet with a 4219 no problem.

I would recommend an independant power supply for the remotely mounted zone expander, due to the length of the wire run and the load of the keypad and devices on the expander.

If you do that, be sure nothing in the remote part of the system is earth grounded. Otherwise, the first lightning ground strike in the area may take out your alarm system.

Regards, Robert L Bass

I would if I thought 75 feet would cause enough of a voltage drop...don't think it will...and all thats gonna be running out there is kp, 4219, 1 mandoor, 1 ohd, and a pir.

I'll do my calcs first before we trench it and install...but the rest of the main house is all wireless and one keypad and one wave 2 siren so the current draw is almost nil.

And don't forget to common the negative terminals

You may find you need one when the system's in alarm and the siren's going. You may not be able to disarm the system with the keypad in the remote building. I have several similar type installations (although the distances may be a tad more on a few).