Jack Fuse is excited to launch our FREE two part Product & Power Distribution Certification. Participants will learn how to get the most out of the Jack Fuse product range ensuring an efficient and safe Jack Fuse installation. Great general power distribution and protection training is also provided that is useful in any security installation. […]
Learning with Jack Fuse Read More »
Door Open To Long (DOTL) sounders are used at a door to warn when the door has been left open longer than a pre-set time. They are also sometimes used in large retail stores with secure fire exits to alert staff if a customer opens the door. The problem is that in the event of
Silencing the DOTL Read More »
I found this today, a recent install. Maybe we need to make the instructions a little more clear/simple. The installer has used a separate relay to take the fire interface and monitor the fire trip. They have then fed the switched power into the fuse module. The whole point of the PP8FR is to provide
Missing the point….. Read More »
The time has come to evaluate the current design of the PP8FR and PP4F against current market needs. We would greatly appreciate any feed back or new ideas from installers of our Power Port range. If you have any comments or want to make suggestions for new features please feel free to comment on this
What is next for the Power Port Range? Read More »
Voltage drop issues in security systems can be avoided with some simple calculations leading to correct cable selection. Theory We power electric locks and other devices via sheathed copper cable. This cable has a known resistance per meter and the electric device will require a known current. The resistance causes the voltage to drop as
Security Cable Voltage Drop Part 2 Technical Calculations & Solution Read More »
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
Mag Lock Slow to Release? Read More »
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 »
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
Fail Safe/Secure with PP8FR Read More »