Hello everyone! It’s been a bit since I made a new post here on the forums, but I have another new panel to show off, and that is my Simplex 4020!
This panel has actually been a work-in-progress for several months as I have been waiting for a reasonably priced CPU bay & IO boards to show up for sale. I sourced the cabinet for this unit back in December 2024 right before it was going to be thrown away – it was removed from an elementary school in my district during an upgrade to a 4100ES, but did not come with its CPU bay or IO boards!
Thankfully, I got very lucky with a recent eBay purchase of not just one, but two of these panels, complete with all of their add-in cards (see below).
These, unfortunately, were not without their problems, though. Both units sustained significant smashing due to improper packaging, and one unit’s power supply interface board was badly damaged (still functions OK from what I can tell, I believe). I was able to use both CPU bays to create one functional assembly, and mostly straighten out the chassis for the unit that’s installed with a pair of pliers and a couple hours of frustration.
Some information about the panel:
- Firmware revision 9.02.02.
- Maxed out configuration for a 2-bay cabinet (CPU bay has an additional MAPNET card, as well as the 2 I/O boards in the second bay).
- Configured for 8 NACs (blue jumpers), 1 zone (red jumper), a couple fan shutdown & elevator recall relays, and the rest are spares (no jumpers).
- The CPU bay in this unit came out of an old church, with approx. 240 MAPNET II devices programmed into it.
Here’s a few pictures!
