Definitions by CaptainChris

FWR 

Stands for Full Wave Rectified is a type of Electrical Current. A wave goes up to the maximum and decreases to 0 and repeats, the frequency depends on whether the line input of the AC to FWR converter is 60hz or 50hz. FWR is used for a few real-life applications for DC devices instead of a clean DC current however it can mess up some DC devices. You can convert FWR into DC using a Capacitor. DC unlike FWR is a clean straight line with no movement.

You need to power that device on DC instead of FWR for it to work right.

FWR by CaptainChris February 3, 2023

Cooper Wheelock 

Cooper Wheelock (Wheelock for short) is a company owned by Eaton that makes Notification Appliances and Fire Alarm and Mass Notification Voice Systems. They are the 2nd biggest North American fire alarm Notification Device manufacturer behind System Sensor. Their products can be used with a super wide range of fire alarm panels and systems.

We installed Cooper Wheelock Fire Alarms in the Brand New School in our district.

Cooper Wheelock by CaptainChris January 28, 2023

EST 

Short for Edwards System Technology/Edwards Signaling Technology
EST designs and manufactures Fire Alarm Control Panels, Fire Alarm Notification Appliances, Pull Stations, Smoke Sensors, and more. Their products are used worldwide.
EST is most notable for its ionic 270 series of North American pull stations which have seen their fair share of use in Pop Culture and in many public buildings in Canada and the United States.

This building has a brand new EST 4 fire alarm system to protect the building and its occupants.

EST by CaptainChris January 28, 2023

Ganna 

A name for the Wheelock ET70WP Fire Alarm Speaker Strobe is used by members of the fire alarm community and the person who started named them ganna's got the term from his school's Spanish voice evacuation message which has ganna in it and uses these speaker strobes.

My school uses Gannas for its outdoor fire alarms. My ganna has a really really bright strobe.

Ganna by CaptainChris January 28, 2023