JLCooper sBOX8D - Manual (Page 7)

gBOX
Installation of the sBOX with the gBOX is just as straightforward.
Simply connect the sBOX to the gBOX using the supplied cable as
shown in the image below.
Aux
Bank
1 2 3
Expansion
sBOX8
Connecting an gBOX to an sBOX8
Expansion
gBOX
7
GPI Output