Our tired old site has had a revamp at the hands of Mathew Ramsey. Mat is a talented designer and has done a supurb job. See more of his work at matramsey.com See the new site at jackfuse.com Some legacy information has been removed, if you need anything in particular just let me know by …
Many modern alarm and access control panels make use of PTC fuses. These are resettable fuses that over heat and trip if the current/heat gets above a set threshold. I have seen them used to protect main boards, reader power outputs and so on. PTC fuses generally take a little longer to trip than a …
I have noticed a couple of installs where the technician connecting the Jack Fuse Power Port 8FR has made extra work for themselves by either interfacing a VDC fire trip locally with a separate relay or alternatively I have found one or two situations where the DC power supply voltage has been separately wired back …
The Jack Fuse Auto Door Interface (ADI) now comes with removable plug style sockets to make fitting of EOL resistors easier in tight spaces such as auto door heads. The resistors are now securely held in a quality Phoenix Contact terminal (X 2) that can be removed and re-fitted as required.
Yesterday I was called out on a service job to one of the worst installs I have seen in a while. What makes it worse is that Jack Fuse Power Port modules were being used! What makes it even worse is that it was an add on to a system that I upgraded relatively recently. …
A pet bug bear of mine is seeing a consultant dictate that ALL access control doors MUST be fail safe & have a fire trip to unlock the door in the event of a fire alarm. In most cases this is incorrect and leads to a lower level of security, exposing the premises to intrusion. …
Yes that is a solid Perspex box glued over the break glass unit to prevent it ever being used! I found this recently in the foyer of a commercial building on the only exit.
Recently I have had several enquiries regarding the Building Code of Australia (BCA) in relation to fire trips. Security installers, consultants and clients often have conflicting ideas about what is required under the BCA. This leads to confusion and doubt, access to the BCA is not cheap and therefore it is often not consulted. This …
This is the first post on the Jack Fuse blog, the blog will feature Jack Fuse product updates, technical articles and general posts to do with the electronic security industry.