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Guru of Grounding
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re: When there’s too many options, but not enough support
Guru of Grounding   8/18/2011 4:50:03 AM
I had a similar experience with a Destiny 6100 security system. After meticulously wiring the system I/O to every sensor, I tried to "program" it. After it was clear that it would take many hours to do it via the system keypad, I ordered the adapter cable to connect it to the serial port of a PC. As your experience, the software was beyond cryptic (what GUI?). I'm convinced that this is done on purpose for job security and high profits to "authorized dealers" only. WKetel sounds like he could be "one of them" - I dismiss the "evil tampering" argument as bull****! I also think that Microsoft and their feature-overloaded bloatware is that way for similar reasons. Whatever happened to simple elegance?

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re: When there’s too many options, but not enough support
WKetel   8/10/2011 1:33:09 PM
Updating a design costs money, and in addition, if I want a replacement for something that has worked well, I may not want to find a bunch of changes have been added. After all, the functionality of an alarm system that is needed has not changed. One more thing, which is that if the original system was that complex, those who have mastered it would probably not be very happy to find that it has changed, and everything that they learned is now obsolete. After all, alarm systems come under the heading of durable goods, meaning that they are not intended to be replaced every six months to keep up with the latest fads. Aside from that, it is definitely in the installers interest to have the system programming so complex that the users would not be able to change anything, since this assures that there will be service calls in the future in order to make changes. Also, the complexity tends to keep those who would tamper with the system for "evil" purposes a bit less likely to be able to do it conveniently.

old account Frank Eory
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re: When there’s too many options, but not enough support
old account Frank Eory   8/7/2011 1:03:42 AM
Funny, when my first home alarm system was installed, I marveled at the skill of the installer, who had to hide lots of sensor wires within the drywall or baseboard seams. My second and current alarm system was all wireless, but still "old" technology from my perspective. The user interface for the controller is ancient -- the kind of stuff students might have done as a school project 15 or 20 years ago. I don't keep up on this segment of the industry, and I'm sure there's much better equipment than what I have, but I think part of the problem is the service model. The home alarm industry has mostly copied the cell phone model -- sign up for monitoring service, and the equipment is either free or really cheap. I think there's quite an opportunity there for differentiation.

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re: When there’s too many options, but not enough support
BicycleBill   8/6/2011 11:29:41 AM
Lighting or lightning?--not sure--I wasn't there when it happened! But it was probably lightning, good point (and I'll proof-read better next time ;-)

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re: When there’s too many options, but not enough support
SY CHOONG   8/6/2011 10:24:06 AM
Nice article. As an engineer myself developing alarm systems here in Malaysia, your experience serves me as a guideline not to piss off the end users. By the way, was it lighting or lightning that fried the I/O lines?

As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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