Completing the PSU connector assembly, I've added:
- a 2.1mm socket for 12V standby power (which will be used for a 4-way 5V USB supply for a Raspberry Pi and other gear)
- a switch placing a 21K resistor between 12V standby and the Present# pin to enable the main 12V output
- a jumper between the Enable# pin and ground, to cause the PSU to come on before I get the I2C control working
As I don't currently need to bolt on crimp lugs, I've covered the main output terminals in thick Kapton film to prevent "excitement" in the event of accidental shorting. This can easily be removed if needed.
Testing shows the unit works exactly as expected.
In the event of PSU problems, or if I need to use the PSU elsewhere, the whole assembly can simply be removed.
