Help Needed: Playstation PCB PS77D


does somebody knows this PCB:

I’m wondering how to connect the playstation console cable.

PCB - Playstation Connector
GND - Pin4
3v5 - Pin5
NC - Pin3 (not connected)
DI - ?
DO - ?
CS - ?
CLK - Pin7
ACK - Pin9

On which pins do I connect DI, DO, CS?

Thanks a lot,

Jochen aka bencao