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ESC”S Series 5000, a signaling system utilizing direct wire (twisted pair) phone lines was used extensively in fire departments and central stations across Canada in the ‘60’s and ‘70’s. With the dwindling availability of direct wire and the rapid growth in data transmission technology, many Fire Departments chose to upgrade to ESC’s Series 8000, the most versatile ULC Listed alarm monitoring system in Canada. These are four uniquely different examples of how the ESC Series 8000 is being used to protect lives and property.

The City of Sault Ste. Marie in Ontario’s mid-north has always monitored fire alarm systems in public buildings. In the early 80’s, a Series 5000 Direct Wire (Class A) system was installed and performed admirably for two decades. Over time, the Class A signal channels became problematic resulting in unnecessary dispatches. The monitoring system was then upgraded to a Series 8000 Data system. False dispatches caused by line faults ceased, with a very measurable saving in manpower and expense


Due to its colourful history and the role it played in opening Canada’s west, Dawson City is primarily a tourist attraction and in fact the City could be considered as one large museum. Protecting the heritage buildings required upgrades in fire alarm systems as well as the installation of a fast and ultra-dependable Fire Alarm Monitoring system. The ESC Series 8000 was chosen because of its ability to send high speed signals to the proprietary monitoring centre over existing signal channels.

The Town of Hawkesburylocated on the Ontario-Quebec border has a new dispatch centre serving 10 regional VFD’s. When the new headquarters was built, it was decided that fire alarm monitoring service would be provided by the dispatch centre. Surrounding farms can take advantage of the services by installing ESC 8240 transmitters in their barns to monitor HVAC failure and of course, fire alarm. In the near future, lift station failure as well as school fire alarm and heating systems will be monitored at the Fire Department.

In the early 80’s The City of St. John’s used a Series 5000 system installed by Audio Systems Ltd. to monitor many of the city’s public buildings. When an upgrade to Series 8000 was planned, ESC designed the transmitter control board to fit into a similar chassis such that a “chassis swap” was all that was required in the field. The individual Series 5000 plug-in modules in the dispatch centre were replaced with rack mounted multi-port hubs.

The Model 5240 Direct Wire chassis (left) footprint is identical to the Series 8000 data-transmission control unit (right).

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