I have a PCI computer card that has the following pinouts for CAN communications.
CAN_L CAN_H SHIELD V+ V-
Its a modicon type connector. I know what the CAN_L and CAN_H is for, however I have no clue where to hook the other three SHIELD, V+, V- to on my circuit.
I was told the V+, V- is for external power, but I disabled it through a jumper. However I am wondering if I have to tie it to something. If so what would it be? Any idea?
PS: The card is a National Instruments PCI-CAN card (from 1997)