The UK Home Automation Archive

Archive Home
Group Home
Search Archive


Advanced Search

The UKHA-ARCHIVE IS CEASING OPERATIONS 31 DEC 2024


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Non-Comfort Alarms


  • To: ukha_d@xxxxxxx
  • Subject: Re: Non-Comfort Alarms
  • From: James Derrick <james@xxxxxxx>
  • Date: Wed, 11 Jul 2001 23:05:32 +0100
  • Delivered-to: rich@xxxxxxx
  • Delivered-to: mailing list ukha_d@xxxxxxx
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • References: <9ic1n9+j3ff@xxxxxxx>
  • Reply-to: ukha_d@xxxxxxx

On Mon, 09 Jul 2001 10:40:40 -0000, you wrote:

>Has anyone got any experience of interfacing with Alarm Systems other
>than comfort ones?

I have the remains of a system used for years in a previous house. I
simply traced the zone input circuits (typically large resistors, and
a supression cap), worked out which was a supply rail and which was
the signal t  the controller and added a wire t  a CD4050 level
shifter/ buffer. This was then linked up t  a 8255 PIO board in a PC.

This worked a treat- the panel worked normally, and the PC had
independant monitoring of all inputs and outputs.

TTFN,

James
James Derrick    james@xxxxxxx, Cramlington, Near Newcastle, England
Beyond the Horizon of the place we lived when we were young,
In a World of Magnets and Miracles. Pink Floyd.



____________________________________
Automated Home UK
http://www.automatedhome.co.uk
____________________________________

Your use of Yahoo! Groups is subject t  http://docs.yahoo.com/info/terms/




Home | Main Index | Thread Index

Comments to the Webmaster are always welcomed, please use this contact form . Note that as this site is a mailing list archive, the Webmaster has no control over the contents of the messages. Comments about message content should be directed to the relevant mailing list.