Make up a system

[wiley209]

@thesdx

@wiley209

In 1990, this was when the 2903 strobe plates were installed (these were the versions where the horn goes on the front side of the plate and not behind it). However, the basement still had their 4050-80s intact!

I think the 2903 had already been discontinued by 1990 due to ADA codes. They probably would’ve installed a 4903-9101 strobe plate.

There was a strobe version of the 2903 plate back in 1990. In fact, SimplexTech has a clip of a Simplex 4002 system installed in 1992 with 2901-9838 horns on 2903 LIGHT plates! I guess the installers didn’t do their homework then.

But when did the 4903-9001 light plate and 4903-9101 strobe plate come out? I’m guessing it may have been the late 1980s.