Integrator - "Hi. This is Bob with Tesla Security. I want to quote your ABC100 system for a project I am working on and I need to know how far the readers can be from the controllers."
Manufacturer - "Well that depends, Bob."
Integrator - "Of course it does. I understand. Assuming I use the cable that you recommend and run it correctly, what is the maximum distance?"
Manufacturer - "Well it could range from 30 feet to 300 feet. It depends on a lot of variable conditions at the site."
Integrator - "Exactly WHAT kind of conditions? The job is in Kimmirut in Nunavut and I am quoting the job from a set of floor plans."
Manufacturer - “Things such as the ambient RF noise and the thickness and construction of the interposing walls and floors must be considered.”
Integrator - "How the heck am I supposed to know ANY of those things without going to the site and spending DAYS doing a site survey? And what's more, the facility hasn’t even been built yet! I need you to give me the exact number of feet that the reader can be from the controller so I can submit my quote by noon today!"
Manufacturer - "I would love to do that Bob but I just can't. It depends. Is there anything else I can help you with today?"
Integrator - "Goodbye!"