Kvaser Leaf Pro HS v2 User’s Guide
16 (23)
D-SUB pin number
Function
1
Not connected
2
CAN_L
3
GND
4
Not connected
5
Shield
6
Not connected
7
CAN_H
8
Not connected
9
Not connected
Table 7: Configuration of the 9-pin D-SUB
Kvaser Leaf Pro HS v2 devices that use the 16-pin OBDII plug (see Figure 7) have
the pinning described in Table 8.
Figure 7: OBDII Connector
OBDII pin number
Function
4
GND
6
CAN_H
14
CAN_L
16
Not connected
Table 8: OBDII pin configuration (showing only connected pins)
4.5
CAN bus termination
Every CAN bus must be terminated with a 120 Ohm resistor at each end of the
bus. The Kvaser Leaf Pro HS v2 does not contain any CAN bus termination,
because their inclusion could cause severe disturbance in a system which is
already correctly terminated.
For laboratory or testing use, the exact value of the termination resistors is not
always critical. Sometimes a single terminator is sufficient. For production, proper
termination is essential. If you see error frames on the bus, you should check the
termination.
Kvaser AB, Mölndal, Sweden — www.kvaser.com
