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Author Topic: 4520 Unimode fire alarm system  (Read 8162 times)

Offline hammer1

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4520 Unimode fire alarm system
« on: December 11, 2009, 02:40:04 PM »
which is too NFPA standard 72 A-D.

Can anyone enlighten me on this type of fire alarm system. Seems it was installed before 1000BC.
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Offline Will Lloyd

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Re: 4520 Unimode fire alarm system
« Reply #1 on: December 16, 2009, 01:28:17 PM »
If it looks very old and big it could be one of ADT’s first attempts at an addressable panel. I recall correctly they were called uimode made in the US so that explains the NFPA standard.
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