Yes that is a sliding door! This mag lock was installed by a carpenter, it is switched via a cheap hotel style locking system. Obviously this did not work long due to the lock grabbing the armature plate as soon as it slid close to the face. The door would not close and quickly the …
Cable voltage drop refers to the lower potential available at the far end of a cable run compared to the potential available at the power supply end. Voltage drop in access control systems is often ignored until it presents a problem and can be difficult to diagnose. The effect of voltage drop is most often …
Security Cable Voltage Drop Part 1 – Explanation and Diagnostics Read More »
If you are finding a mag (electromagnetic) lock to be “sticky” or slow to release it is likely that it has a diode connected across the power terminals. Remove it, problem solved. This is a common mistake. The reverse biased diode is supposed to prevent a current spike (often call back EMF) caused by the …
This post partly relates to the ATMOD a Jack Fuse product that houses End of Line (EoL) resistors on a PCB with quick connect terminals. A potential customer recently scoffed at the ATMOD claiming it did not comply with Australian standards. Apparently this customer was under the impression that the standards dictate that resistors must …
Australian Standards – Security Systems – Part 2 EOL Resistor Termination Read More »
Recently I have had much discussion with industry work mates relating to the use, reference and implementation of the Australian standards relating to security systems. The standards that relate to installers are mainly: AS NZS 2201.1-2007 Intruder alarm systems – Clients premises – Design installation commissioning and maintenance. AS 2201.3-1991 Intruder alarm systems – Detection …
Australian Standards – Security Systems – Part 1 Read More »
Jack Fuse is proud to announce the official release of the ATMOD. The ATMOD is a pre-made end of line resistor pack with quick connect terminals that has been specifically designed for the security industry. Once you start using the ATMOD you will never want to go back to resistors! The ATMOD allows installers to …
I have been asked how to power the locks for a fail safe/fail secure door using the PP8FR. Fail safe/secure doors use two electric locks, one to release on fire or emergency and one to stay locked to maintain access control back into the building. Often this is achieved by controlling the negative/ ground connection …
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 …
Available Now: ATMOD Pre-built End Of Line Resistor Module Read More »
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 …
Clearly well maintained!