• OBD or OBDI standardizes the connector so that it is identical on all vehicles
• The communication protocol remains somewhat specific depending on the make of the vehicle
• The OBDII port is always powered up, even when the vehicle is turned off
• When connecting an IR1800 CAN Bus, the vehicles owner must review the characteristics of the ODB2
power and fuse protection
The following are different types of OBD-II cables depending on the model of vehicle you are installing the
router in.
Table 13: OBD-II Cable Descriptions
OBD-II (J1962) Type A to Router cable with type 1
Y
OBD2-J1962YA-MF4
OBD-II (J1962) Type B to Router cable with type 2
Y
OBD2-J1962YB-MF4
OBD-II (J1939) Type 2 heavy duty diagnostic harness
for Volvo
OBD2-J1939Y2-MF4
OBD-II (J1939) Type 1 to Router cable with type 1
Y
OBD2-J1939Y1-MF4
OBD-II (J1708) to Router cable with type 1 y-splitOBD2-J1708Y-MF4
J1962-VM-Type B Volvo & MackOBD2-J1962VMB-MF4
The list of the cables is illustrated by the picture below. The box Vehicle Conn is the connector mated to the
car/truck. The box Tool Conn is for attaching diagnostic tool. The MiniFit-Jr is the connector shown above
that will connect to the IR1800.
Cisco Catalyst IR1800 Rugged Series Router Hardware Installation Guide
63
Digital I/O, Ignition, and CAN Bus Connectivity
On-Board Diagnostic (OBD-II)