Alarm System Upgrades and Enhancements

Our objective was to provide the client with a safety and security system that would alert him of a variety of conditions without using any audible signals. These conditions included burglary and fire alarms, notification of visitors at the front door...

One of the more interesting and rewarding aspects of security is when you are presented with a challenge to upgrade a project or provide enhancements required by a particular application.

We recently performed an alarm installation that seemed to be nothing but upgrades and enhancements, due to the fact that the premises was an old cottage being completely renovated, and the person who would be occupying the premises was totally deaf.

Since security and life safety systems are referred to as ‘Alarm’ systems and audible alarms are by far the most familiar to the installer, being faced with a client who could not hear an audible signal created an immediate design challenge.

Our objective was to provide the client with a safety and security system that would alert him of a variety of conditions in the premises without using any audible signals. In addition, the client desired Carbon Monoxide detectors as well as typical heat and smoke protection; he wanted to be notified if someone was at the front doors; he wanted to know if the phone was ringing, and he wanted to know all this whether he was inside the house, out on the grounds, or in his bed asleep. This was a project that enabled us to pull out all the stops.

We decided to use the Honeywell (formerly ADEMCO) Vista 50P supervised wireless system because it provided the zone expansion, and signal processing flexibility the project demanded.

The client had previous experiences with a specialized product for the hearing impaired manufactured by COMPU-TTY, and we endeavored to incorporate this product into our design, without compromising the reliability of the professional Honeywell technology.

We managed to interface quite a selection of input and output devices into our system, thanks to the powerful Honeywell panel and accessory modules. Some of the signals were of a security nature, some were not, but all were to be controlled by the VISTA panel.
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Here are some of the client’s requirements, and the methods we resorted to fulfill them.

Interface with two wireless door bell buttons. These units were comprised of a transmitter and a receiver module that plugged into a receptacle. We programmed the two buttons to a single receiver, then modified the receiver so that it would produce a contact closure, and then connected it to a hard-wired zone in the alarm panel.

Interface with pressure mats. Mats were placed in front of the two primary entrances to the house. We selected pressure mats which provided a closed circuit when they were activated, and used special open circuit #5817 ADEMCO transmitters
ner know when the phone was ringing, we used a Viking Ring Detector and connected it to a hard-wired zone.

Carbon Monoxide Detectors. We determined that the premises would require two CO detectors. We located one unit in the basement and used a #5817. The other CO detector went in the kitchen adjacent to the alarm panel, so we hard-wired it direct.

Controlling the alarm system. To provide the homeowner with the most convenient means of controlling the alarm system, we supplied a hard-wired control panel right on the panel itself, and a wireless backlit panel which could be carried to any room in the house.
All window and doors were contacted and we used #5816 for these zones. Also three wireless ADEMCO PIR’s were placed in strategic points throughout the premises. We used about 55 zones for this job.

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