CAT Industrial to Standard J1939 Adapter The opposite version allows a

The opposite version allows a marine accessory or tester to plug into a standard OBD2 connector

G: J1939 / J1708 Low

ELM Electronics

This system has Green colored connectors instead of the standard black Type 1

This cable has a 12 pin OBD1 connector shell to plug in under your cars dash to interface to your cars ECM

CAT Industrial to Standard J1939 Adapter The opposite version allows aThis 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.