I have dozens of STD Bus backplanes, but as I mentioned in my last post none of them are ideal for when I have a sick card on the workbench. So I am working on an eight-slot STD Bus Backplane that has all the bells and whistles that I personally like.
- 8 slots, STD Bus Standard spacing of 0.75″
- Board mounted card guides
- Bus signals brought out to pin connectors for connection to your favorite bench diagnostic tools
- Barrel connector for +5V input
- Molex connectors for standard AT or XT power supply with +5V, +12V, -5V, -9V, -12V
- Pushbutton reset connected (via resistor) to backplane PBRESET signal
- Onboard Jumpers to connect the STD AUX+ and AUX- to the supply voltages
- LM317 and LM337 Linear voltage regulators to create additional custom voltages for AUX+ and / or AUX-
- Lots of onboard storage and decoupling capacitors for high current boards like disk drives, analog output, rack output, etc.
- Test points and LEDs for standard voltages +5, -5, AUX+, AUX-
- Edge mounted end connector can be installed to allow the card undergoing tests to lay horizontally.
I will be submitting the first version of this card with my next board order, probably sometime this month or next. Let me know if you have particular feature suggestions.
This is terrific news. I went looking for a STD bus backplane, but in my area I’ve had no joy.
Looking forward to having a go at building this!
Currently the documents link has the magnetic bubble memory links – are they just place holders for the final design?
oops, yes that is just when i duplicated that page. as simple as it is for the backplane, I still need to do the documentation.
thanks for your excitement.