The T2 manual has lots of errors on the GI pinout :)

Try to remember the WPC GI standard pinouts for J120 + J121 (or J105 and J106 on WPC-95)

Pin
    Wire color at J120/J121
1
    Brown
2
    Orange
3
    Yellow (yellow)
4
    Key
5
    Green
6
    Violet
7
    White-Brown
8
    White-Orange
9
    White-Yellow (yellow)
10
    White-Green
11
    White-Violet