Q. I bought a F3-PMUX-1 module and I can't turn on any I/O in the base.
A1. Make sure the jumper settings on the module match the I/O in the base (analog and discrete combo) and the AC28 card reset level. If the reset LED is ON solid the reset level on the PMUX board does not match the AC28 settings.
A2. Verify you are using the same base address that is selected by the PMUX jumpers.
A3. If you are still having problems, try using the PAMSCAN software that comes with the AC28 card to communicate to the PMUX bridge CPU. This will confirm the module is working properly.