This cable has one side that goes one to one from pin 1 to pin 8 and this side is for the tachograph. The other side is intended for the Teltonika box, to which continuous current, ignition and earth are connected. 

ECE-R 118 certified

This cable is made with one side that goes one to one from pin 1 to pin 8 and this side is for the D8 from the tachograph. The other side is made for the Teltonika box where you only have the pin8 so that the box can get D8 data from the tachograph. 

ECE-R 118 certified

This cable is with one side that goes one to one from pin1 to pin8 and this side is for the D8 of tachograph. The other side is for the Teltonika box where you have connected C5, C7 and C8 for the CAN connection between the box and the tachograph.

ECE-R 118 certified