Correlating pinout for 7i92t

7i92t on RPi5.  My Geckodrive G540 just died and I put it on a Leadshine MX4660 which is basically the same thing off a DB25.  Connects to the same pins for step/dir.  Ribbon cable from header to DB25 on it.  Unlike G540, it has opto inputs for switches that wire straight to DB25 pins without an intervening breakout board to connect to them.  I copied something I saw online for where in PNCConf to associate with the right step/dir.

I didn't have homing switches on the old one.  I'm looking at PNCConf and it has cryptic pin numberings "000:", "00:", "0:".  Now I can look up the documentation on the MX4660 and see what DB25 pins I'm sending the X limit switch to, but I still need to correlate it with PNCConf's mystery numbering system

What's the mapping from that PNCConf table to actual DB25 pins when a standard dual-row box header to DB25 ribbon cable is used?

pncconfs 3 digit numbers are GPIO numbers
The mapping from GPIO to DB25 is listed in the pinout file
(or by running mesaflash with the --readhmid option)

Also, to show all GPIO, make sure you disable the encoders
that are present in the configuration (by setting the number
in pncconf to 0)