Mechanism pics (with the back glass cover removed).
For some reason, this doesn’t have a code mechanism, however, I don’t think it ever had one (judging on how it works when the lever is pulled). If anyone knows how to wire this (or knows anything about this), I’d love to hear from you
I’ve seen these before and wasn’t sure what to make, but your pictures may have answered most of my questions. I thought it might have had the code mechanism hidden under there with a solenoid for non-interruption , like a vitaguard, but that’s not what it is at all. It looks to be just a simple EOL resistor and a microswitch which is activated by that disk which rotates when you pull the handle.
That said, it looks to be a basic microswitch, short of maybe removing the EOL I imagine you could wire it like any pull station. it may also have a switch that activates when the door is opened, like a presignal switch.
Autocall also made terminal-only versions of the howe transmitter style stations, too, which almost would have been redundant with this from a product perspective…they also had small BTG stations, so I can only imagine they used these larger ones to match things when retrofitting
Thanks for basically reinforcing a belief I had with this before the post. I looked at the mechanism on the back and thought “Is this just a oversized pull station?” So, glad you basically confirmed it.
Back in those days, Autocall was selling at least three different systems: conventional, coded, and the howe-proprietary system. I suspect these were sold as retrofits to turn coded systems into conventional. Another possibility is that they were upgrading from code wheels to transponders, they were doing stuff like that in the 1970s during the fedsig ownership when they were selling things like the cd-xa.