Simplex 2001 - Wiring the motherboard jumpers

Congrats on finding one of these panels, they are becoming very difficult to find and are indeed a significant piece of STR history. Appears to be almost mint as well.

So, it appears as if your panel is set up with 4 zones, 1 signal circuit, and a meter module. Now, with the way your panel is currently configured, you do not need any jumper wires running between the cards (besides the jumpers on J2, those are there to make the meter module work. If you want to keep the meter module, keep those jumpers in place. The meter module must be in J2 as well, as this is one of the design limitations with the 2001). However, as far as the zone cards and signal cards, with the way it sits right now, you don’t need jumpers. You can connect a pull station to a zone, and the panel and signals will activate (without coding) as the zone card sends power to the signal card through an internal bus on the motherboard rather than through jumpers.

It seems like you are looking to add a 90BPM marchtime card, so for that, you will have to add jumpers. I have a pretty good idea on exactly where you will have to place the jumpers, so I can try to help you with that. I also have a good idea on how to wire this panel (like connecting signals and devices to the zones), so I can help with that too if you would like.

It also seems like this panel has its original filtering capacitor, which I’m willing to bet is bad by now. The filtering capacitor is that large blue capacitor on the top right of the motherboard, and it is a part of the panel’s rectifier circuit. It essentially converts full-wave-rectified DC power to filtered DC power. However, these tend to go bad as they are oil-filled electrolytic capacitors, which dry up over time and cause the panel to output full wave rectified power. So, you’ll have to find a new capacitor and solder it on if you would like this panel to output filtered DC.

But once again, congrats on obtaining this beauty. I am more than happy to answer any questions you have about it, and when you are ready to wire it up, let me know! I am happy to help.