Amiga A1222 Plus Tabor Specifications: "WCU Prog" and "CPU LED Port"?

[First Ninja]

On the official Amiga 1222 Plus product page, there are a couple of peculiar entries:

WCU Prog
LED ports for Power, CPU, HDD

• What is a "WCU Prog"? Using a well known search engine yields zero relevant results, so whatever it is it has to be pretty obscure?
• Why does the CPU have its own LED port? What purpose does it serve?

@amigakit - care to comment?

[First Ninja]

i think the WCU prog thing is a typo.
There is a header called MCU prog on the board, can't remember seeing anything called WCU prog.

Are you sure that header is really called MCU? Judging by the photo Rob refers to, it might just as well say WCU? Here's a closeup:

[First Ninja]

It only has  2 pin header so I assume it's a crude CPU activity indicator.

Got it. Do you have any idea what triggers the signal, and if its digital or analog?