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Thanks everyone for your good advice. It looks like they are going to stay with the hard wired system from their current alarm company.
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Integrator, I liked the latching mode duress devices and an alarm panel indicator that stayed until the responding officers notified communications of the site was secure and the senior person he or she alone reset the device and the panel indicator was then extinguished. That is positive control. As long as the indicator was illuminated, you knew the patrol was still on-scene.
With the older installations, evertime you had a thunderstorm the panel lighted like a Christmas Tree. Likewise when a heavy piece of machinery started-up you tended to get false alarms.
On one occasion in the township a bank teller tripped the device and the snapping sound was heard by all and all the tellers and two customers were murdered. The three robbers were subsequently caught and confessed they were spooked, panicked and opened fire. Common Pleas Court found them guilty of aggravated murder and executed.
It goes without saying, duress devices should always be silent in their operation.
Enjoy the day,
Bill
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Originally posted by integrator97 View PostYou didn't have to edit and add that last line CameraMan. Some of the posts that make me smile or chuckle the most are like yours. I'm not old enough to have installed the dino stuff, but I'm not young enough to have avoided working on it.
Enjoy the day,
Bill
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Originally posted by CameraMan View PostWhen dinosaurs roamed the earth?
My dad used to tell me stories of single-zone panels he installed when he was my age. Makes me glad I was born when I was. Single zone panels, foil, and burning your own chips? Wow.
Oh, and I agree that wireless is prone to failure and only good for short range use.
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Originally posted by integrator97 View PostWay back when alarm panels had a limited number of zones, or just a single alarm BA circuit, these were used to determine who set off the alarm. "I didn't push it. Well yours is tripped". Nowadays, with all the zones available, it just doesn't make sense. Put each on it's own zone. Some day it's going to cost a life, if it hasn't already.
My dad used to tell me stories of single-zone panels he installed when he was my age. Makes me glad I was born when I was. Single zone panels, foil, and burning your own chips? Wow.
Oh, and I agree that wireless is prone to failure and only good for short range use.Last edited by CameraMan; 01-15-2008, 01:07 PM. Reason: Added the last line to seem as though I had something to add to the conversation that hasn't already been said.
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On the radio units I purchased for my security team during the Y2K BS, we had trunk call radios with mercury switches and there was a duress (panic) button about 1 inch long for activating a piezo siren which could be set to run for 1 minute to continuous at 120db which is bloody annoying.
1 pharmacy client had me examine their early morning security and we agreed that a panic alarm was mandatory and for now I installed those personal 9 volt units with a manual button or key chain. Day 1, the sales manager was opening up when a known methadone user came in right behind and began to lose it. She pulled the pin and it screamed sending him to leave the building as she locked the door. Eventually a wired system was installed with portable duress units on fobs (break off necklaces) that were effective but then again there is nothing like having 2 people around is there ?
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Originally posted by john_harrington View PostPlease do yourself a favor and use a wired panic button such as an Ademco 269 (link below). That way you have no worries about when the battery was changed, interference etc. I will never spec a wireless solution unless someone needs to wear a panic device and even then I spec with many caveats!!
John
Way back when alarm panels had a limited number of zones, or just a single alarm BA circuit, these were used to determine who set off the alarm. "I didn't push it. Well yours is tripped". Nowadays, with all the zones available, it just doesn't make sense. Put each on it's own zone. Some day it's going to cost a life, if it hasn't already.
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Originally posted by john_harrington View PostPlease do yourself a favor and use a wired panic button such as an Ademco 269 (link below). That way you have no worries about when the battery was changed, interference etc. I will never spec a wireless solution unless someone needs to wear a panic device and even then I spec with many caveats!!
John
Enjoy the day,
Bill
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Go Hardwired
Please do yourself a favor and use a wired panic button such as an Ademco 269 (link below). That way you have no worries about when the battery was changed, interference etc. I will never spec a wireless solution unless someone needs to wear a panic device and even then I spec with many caveats!!
John
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Originally posted by Curtis Baillie View PostThey wont let you use a cell phone in a hospital anymore, claiming that it interferes with the equipment.
We did still restrict their use in ICU/NICU
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Originally posted by Curtis Baillie View PostThey wont let you use a cell phone in a hospital anymore, claiming that it interferes with the equipment.
But I hope they never let people use their phones on planes. Can you imagine 50 people on phones in that small of a space?
Funny how they worry about our phones, but as Bill pointed out, the amount of rf and emf from the medical equipment is often huge.Last edited by integrator97; 01-12-2008, 01:21 PM.
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They wont let you use a cell phone in a hospital anymore, claiming that it interferes with the equipment.
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I completely agree with Curtis and Bill. A hospital environment is very condusive to wireless signal propagation and interference. I have heard many stories of wireless alarm devices not working properly in that environment. The repercussions of someone falsely thinking help is on the way during a life threatening situation could be catastrophic and open someone up to liable. As Bill said wired devices would be the way to go.
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Originally posted by Curtis Baillie View PostI did some work for a retail pharmacy chain who looked long and hard at panic alarms, but decided to forego them due to reliability and false alarm rates. This may be OK for a hospital setting, but I rarely recommend them for retail.
I believe 714 is better off in the installation of hard wired duress devices. It might sound trite, but they should think hard about ferrous metal piping and ensuring the runs are separated from high voltage transmission lines.
Enjoy the day,
Bill
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I did some work for a retail pharmacy chain who looked long and hard at panic alarms, but decided to forego them due to reliability and false alarm rates. This may be OK for a hospital setting, but I rarely recommend them for retail.
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