J1939-to-DB9/DB9 Adapter (Deutsch 9-Pin, 2 x CAN)

J1939-to-DB9/DB9 Adapter (Deutsch 9-Pin, 2 x CAN)

Need to log 2 x J1939 from a heavy-duty vehicle?

This adapter cable fits the J1939 deutsch 9-pin connector found in most trucks, buses and tractors - and lets you easily connect e.g. a CANedge to record 2 x J1939 data.

For heavy-duty vehicles that provide access to 2 x J1939 via the deutsch 9-pin connector, this cable may provide you with a richer dataset vs. our normal J1939 adapter cable.

We offer two variants of the cable: Our 'J1939-DB9/DB9 (H+J)' and 'J1939-DB9/DB9 (F+G)', depending on which of pins in the deutsch 9-pin connector provide access to the second network.

75 EUR
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Dual Channel OBD2 adapter J1939 2 x J1939

Log 2 x J1939 networks from supported heavy-duty vehicles

Volvo 2013 OBD2 adapter cable H+J OR F+G

Access 2nd J1939 network via two options (pins H + J or F + G)

J1939 Pass Through Connector Cable TYPE II

Type II connector, supporting both green/black connectors

Solid Quality Rugged Cable AWG SOLID CABLES

Rugged quality 1.5m cable with overmolded DB9 connectors

RoHS Compliant Cable Tested Denmark ROHS

Cables are RoHS compliant and tested in Denmark

1 Year Warranty 1Y WARRANTY

We offer a 1-year warranty on all our products




About the adapter cable

This adapter cable is useful in heavy-duty vehicles (trucks, buses, tractors, ...) that provide access to multiple J1939 networks through a single deutsch 9-pin connector.

Specifically, the cable lets you connect a CAN bus data logger (like the CANedge) directly to the deutsch connector to both log the primary J1939 network (like our standard J1939 adapter), as well as a secondary J1939 network (if available).

This cable comes in two versions:

  • H+J provides access via pins H (CAN-H) and J (CAN-L)
  • F+G provides access via pins F (CAN-H) and G (CAN-L)

As an example, tractor diagnostic connectors will match the H+J version, providing you with access to both the J1939 and ISOBUS network in parallel.


If a heavy-duty vehicle has a deutsch 9-pin connector, it will in the vast majority of cases provide access to the primary J1939 network via the standard pins.

In such a case, you can either use this adapter cable or our standard J1939 adapter cable.

In some vehicles, there may also be a second network available via pins H and J or pins F and G. In this case, one of the two J1939-DB9/DB9 variants we offer can be connected to provide access to dual J1939 logging via e.g. a CANedge.

Note that we cannot say beforehand what data is available (if any) via a 2nd port for a specific vehicle. You will need to test this in practice, or review technical manuals for each vehicle you're interested in.


We primarily recommend to use a J1939-DB9/DB9 adapter cable if you know that there is a secondary J1939 network available - and if you know that you'll need data from it.

In most use cases, our standard J1939 adapter cable will be sufficient to give you access to the necessary data. Further, if no J1939 deutsch 9-pin connector is available, you may be able to use our OBD2/J1939-DB9/DB9 adapter cable or a CANCrocodile.


use cases



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GENERAL
Adapter Cable Length 150 cm
Adapter DB9 Pins In accordance with CiA 303-1
Cable Thickness 22 AWG (0.50 mm2)
Connectors 2 x 9-pin D-sub (DB9) female to J1939 9-pin deutsch connector
Type Type II (compatible with both black Type I and green Type II connectors)
Connector Head Passthrough (H + J)
Temperature Operating temperature: -20degC to +80degC
Weight 320G (H + J)
Color Black



Adapter pinout: J1939-DB9/DB9 (H+J)


J1939 Function DB9 - CH1 DB9 - CH2
A GND 3 N/C
B VCC 9 N/C
C CAN-H CH1 7 N/C
D CAN-L CH1 2 N/C
E N/C N/C
F N/C N/C
G N/C N/C
H CAN-H CH2 N/C 7
J CAN-L CH2 N/C 2
J1939 Splitter H + J Adapter Pinout Connector Cable

Adapter pinout: J1939-DB9/DB9 (F+G)


J1939 Function DB9 - CH1 DB9 - CH2
A GND 3 N/C
B VCC 9 N/C
C CAN-H CH1 7 N/C
D CAN-L CH1 2 N/C
E N/C N/C
F CAN-H CH2 N/C 7
G CAN-L CH2 N/C 2
H N/C N/C
J N/C N/C
J1939 Splitter F + G Adapter Pinout Connector Cable

Below are two use cases examples where the OBD2/J1939-DB9/DB9 adapter is useful:

Dual CAN logging J1939 truck fleet telematics

Vehicle fleet telematics

Need to log 2 x J1939 data from a truck fleet?

If you need to e.g. record data from a mixed fleet of trucks, the adapter provides a simple way to connect your CAN logger to log two J1939 networks from each truck. For example, the CANedge2 can log the primary J1939 network via Channel 1 and the secondary J1939 network via Channel 2 - all into the same log file, automatically being uploaded to your own server.




It differs by vehicle model/year/type what adapter cable is most suitable.

If there is only access to the primary J1939 network in the 9-pin deutsch connector, we recommend our standard J1939 adapter cable.

If two networks are accessible, the right variant depends on which pins are used. Some OEMs use pins H and J for the second network, others use pins F and G for the second network.

In cases where you have physical access to the vehicle, you may be able to visually inspect the connector to determine which pins seem to have metal heads inside, indicating that they are connected. This is a useful input in selecting the right adapter cable. Alternatively, you can get both cables to start with while you're performing tests.

When you have access to technical manuals for the vehicle, you may also be able to find the pinout specification through that.