Part number 6250031 is a 5m cable with a DIN plug on each end.
I f you need 8 pin DIN to RJ45 you probably want this: (click for larger image)
EDIT: The type of PL cable that you need will depend on what equipment you are connecting. The above diagram is taken from the Beolink Handbook v1.9. If you let me know exactly what you are connecting and I will post the details.
