question on how to proceed

A little background. I bought a house about 7 months ago. It came with a DSC system. I bought a standard elk m1 gold system and an additional touch screen pad. From doing research I have read that DSC supposedly has like 5600 ohm EOLR's. There is no sign of these resistors. There is only enough wire to come out and connect to the window sensors and such. I am considering scrapping the installed sensors (doors, windows, motion). I know it is preferable to have wired vs wireless but I just don't know how I'd proceed from here plus a lot of the window sensors aren't in great shape. I haven't checked in the crawl space for the eolr's. I believe I'd be alright to keep the keypads wired right? The keypads have 6 wires where there are currently only 4 wires going to the DSC keypads. What materials/costs would I be looking at to go wireless? I have a lot of windows :/. I believe I need a wireless card to do wireless too right? Does that get installed in the box with the main card? Any help would be much appreciated. I have limited electrical experience but am a DIYer. Thanks.

You can put an ohm meter on the sensor leads at the controlled to measure the resistance on the lines with the switches in both open and closed states which should answer your question about end of lineresistance.
 
For the keypad I have no idea how the dsc keypads are wired but you should be able to learn that online. I would think that you have to replace the keypads with Elk keypads.
 
Mike.

Thanks for the response. I said that I have elk keypads. I was saying that the elk keypads have 6 wire connections where there are only 4 in the wall going to the installer DSC pads.

If you can't pull new cable, you should be able to use an ELK DBHR (retrofit hub) for the keypads.
 
OTOH, if you only have two keypads, you can wire the bus such that those keypads are at the endpoints and terminated.
Read the ELK install manual and make sure you understand how the bus is wired.

whatevers2k said:

Thanks for the response. I said that I have elk keypads. I was saying that the elk keypads have 6 wire connections where there are only 4 in the wall going to the installer DSC pads.

Click to expand...

I'm new to this system myself but I just looked at the installation instructions for the m1kp and it appears to require only four wires.

from the keypad installation instructions:
 
Ideal keypad mounting height is 50-58 inches above the floor.  Select a location with an ambient temperature range between 32° and 120°F (0° to +49° C).  Avoid direct sunlight if possible.  Keypads operate on the M1 data bus, which uses 4-wires.  However, CAT5 or CAT6 eight(8) conductor is recommended for all data bus cables.  The extra wires are for data return paths.  NOTE: See pages 12 and 13 in the M1 Installation Manual for important information about Data Bus termination when multiple homerun cables are installed.  DO NOT SPLICE OR CONNECT WIRE WITH CONTROL POWER ON.  Minimum cabling should be four conductor 22 or 24 gauge.  Maximum resistance per wire is 25 Ohms. Device placement beyond 1000' is not recommended.