I have an old Toshiba Portege R100 which has an ailing hard drive. I've already procured a replacement and a couple 1.8" 50 pin to 40 pin adapters. The makers of the adpaters thoughtfully omitted a jumper for enabling slave operation, making it impossible to copy from one to the other on the same bus which is going to be the easiest way for me to clone the drive. Does anyone know which of the 50 pins need to be shorted to achieve slave operation. I am a bit confused by this document which shows two different sets of pins (C-D and B-D). Do I do both or one or the other?

Any help is greatly appreciated!
Stu