The controller you have is slightly different to the one I got but here are the pinouts as traced back through the line buffers to the parallel port for mine:
Pin YOOCNC Description 3 axis Description Direction Active Low DB9 Signals 2x5 IDC
1 B Axis Step Out
2 X Axis Step X Axis Step Out Yes?
3 X Axis Direction X Axis Direction Out Yes?
4 Y Axis Step Y Axis Step Out Yes
5 Y Axis Direction Y Axis Direction Out Yes?
6 Z Axis Step Z Axis Step Out Yes
7 Z Axis Direction Z Axis Direction Out Yes?
8 A Axis Step A Axis Step Out Yes?
9 A Axis Direction A Axis Direction Out Yes?
10 Estop In Yes 7 8
11 X +/- Limit switch In Yes 3 6
12 Y +/- Limit switch In Yes 8 4
13 Z +/i Limit switch In Yes 4 2
14 B Axis Step B Axis Direction Out 2 NC
15 Tool Limit? In Yes 9 10 Not buffered
16 Enable 5 (Amplifier Enable?) - B Axis Direction RLY Out No 5 5v
17 Enable 4 - Stepper enable EN Out No 1,6 GND 1,3,5,7,9 GND
If the formatting is all screwed up you should be able to just copy/paste it into excel.. otherwise let me know and I'll email you the original excel file.