My Middle school’s old fire alarm system

The middle school I attended was built in 1980 with an old Edwards system. The old system consisted of Edwards 270-spo pull sustains and Edwards 439d-6awc bells installed in hallways. The system was replaced in 2005, so this info may not be correct, however I have confirmed that the pulls were 270-spos because I saw an old yearbook from 1982 with one in the background. Does anyone know what panels edwards was marketing around 1980?

[quote=RSSAlarms post_id=82320 time=1541974651 user_id=4672]

The middle school I attended was built in 1980 with an old Edwards system. The old system consisted of Edwards 270-spo pull sustains and Edwards 439d-6awc bells installed in hallways. The system was replaced in 2005, so this info may not be correct, however I have confirmed that the pulls were 270-spos because I saw an old yearbook from 1982 with one in the background. Does anyone know what panels edwards was marketing around 1980?

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I would assume it would be either an Edwards 6500 or an Edwards 2280 panel.

I already talked about it on this thread: <URL url="Edwards panel models 1979-1980? text=“viewtopic.php?f=3&t=9571”>Edwards panel models 1979-1980?