This adapter allows a standard J1939 interface to connect to a CAT industrial Diagnostic Connector. Notice the center pin (A)... On the standard J1939 connector, this is keyed with a small tab. On the CAT connector, there is no center pin keying.

Wiring Connections

CAT	Signal	J1939
A	Battery	B
B	Ground	A
C	CAN Shield	-
D	CAT Data Link +	-
E	CAT Data Link -	-
F	J1939-	D
G	J1939+	C
H	J1708-	G
J	J1708+	F

Don't see what you need? Check out our Custom Cables page or give us a call at 310-793-2410. We can custom make nearly any configuration to your specifications.