I have just come across a client running IEI 3.3 for access control (only seven doors, so not much). Can anyone tell me about how old that might be? I'm guessing min 10 years.
I recall using stand alone IEI keypads in the early 2000's but have not been near it since. And having that limited experience with IEI (now Linear/Nortek?) is there any reason to believe an existing system can be expanded to encompass multiple sites, or even expanded significantly on this one site? Thanks.
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