Available Now: ATMOD Pre-built End Of Line Resistor Module

Sneak peak at new ATMOD from Jack Fuse. Due for official release in September 2012. Out now! The ATMOD makes installing End of Line resistors for security & access control systems easier than ever before. It features an on board resistor network and special push in connectors that allow technicians to make mistake free terminations […]

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Care when terminating.

Recently one of my re-sellers had to rush to site with a replacement module for a PP8FR that had a “faulty” output. Fuse one would blow every time power was applied to the board. On inspection I removed the main output terminal plug and found a single strand off copper shorting the output. I brushed

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New Jack Fuse Website

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

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Fuse on PTC action

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

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Power Port Fire Interface

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

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