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CANCrocodile Adapter (+ DB9/DC)

Do you need to log CAN bus data directly from the CAN L/H wiring harness?

Now you can - without cutting the CAN wires!

With the CANCrocodile contactless CAN reader you can tap into the CAN bus data of e.g. your vehicle fleet. The data is parsed to the CLX000 via electromagnetic fields and no wires need to be cut (i.e. warranty is kept).

In this pack we also include a DB9-Molex/DC adaptor. This lets you connect a CLX000 to the CANCrocodile and power it via an external power supply (e.g. the vehicle battery or cigarette outlet).

Buy now - or read more below!

75 EUR


About the CANCrocodile contactless CAN reader

What can you use it for? The CANCrocodile enables safe reading of data directly from the twisted CAN L/H wires (e.g. in vehicles or machines). It can be used to connect your CLX000 e.g. when OBD2/J1939 connectors are not an option.

To connect the CANCrocodile, follow the below steps:

  1. Open the CANCrocodile housing
  2. Place the CAN-H/CAN-L wires on the marked surface
  3. Close the housing, engaging the latch
  4. Optionally seal the housing (recommended)
CANCrocodile Installation CAN Wiring Harness
CANCrocodile CAN Logger CLX000 Kit

To connect the CLX000, follow the below steps:

  1. Connect the CLX000 to the DB9 connector
  2. Connect the adapter & CANCrocodile molex
  3. Connect the DC connector to a power supply (cigarette receptacle, battery pack, wallplug, ...)

With this, you're ready to log data with the CLX000 directly from the CAN wiring harness!

Note: You need to use manual bit rate and turn off Silent Mode of your CLX000 when logging via the CANCrocodile.

When Do You Need the CANCrocodile?

In many cases, you can simply connect the CLX000 using a DB9-OBD2 or DB9-J1939 adapter.
However, sometimes this may not be an option:

J1939/FMS Vehicle Telematics

Need access to J1939/FMS data - but lack a connector port?

For vehicle fleet management, you’ll typically need to collect OBD2/J1939 data. Often this can be logged directly via OBD2 or J1939 connectors, but sometimes the relevant connector is blocked or unavailable.

Here, the CANCrocodile offers a simple solution by simply tapping directly into the relevant CAN bus wires. It’s automatically listen-only and does not affect warranties, making it great for large-scale fleet applications.

Machines & Test Setups

Need data from a machine/test setup with no external connector?

Many machine assets (e.g. in production) do not have built-in connector ports for CAN loggers. Here, exposing the CAN wires provides a simple access point for the CLX000 using the CANCrocodile as gateway. Further, the DC connector can easily be connected to a wall plug using a standard adapter cable.

CANCrocodile CAN Bus Parser

Check out our Tech Specs/FAQ above - or go back to the top to buy!

We strongly encourage you to read the full CANCrocodile installation manual before use.

Adapter Cable Length 15 cm (both cables)
Adapter DC Connector 5.5 mm (ID) x 2.1 mm (CPD)
CANCrocodile Cable Length 70 cm
CANCrocodile Body See drawing further below
Adapter Pins In accordance with CiA 303-1
Compatibility High Speed CAN Bus (ISO 11898-2) incl. CAN FD, SAE J1939, OBD2, NMEA, CANopen
Nominal Supply Voltage 12/24 V
Current Consumption 30/15 mA
LEDs Red: Power on; Green: CAN bus data read
Termination The CANCrocodile is internally terminated (120 Ohm)
Temperature Operating temperature: -20degC to +80degC
Weight (excl. CLX000) 100G
IP Rating IP30

Adapter Pinout

  DB9 (Female)     Function     Molex     DC Connector  
2 CAN-L 4
3 GND 2 Outer
7 CAN-H 3
9 VCC 1 Center

Product Dimensions

CANCrocodile Dimensions Size

For most standard purposes, you'll be able to use just a DB9-OBD2 or DB9-J1939 connector for your CLX000. However, various scenarios exist where this is not an option:

  • The OBD2/J1939 connector ports may be non-existing in the specific vehicle
  • Other CAN tools may block the relevant connector port (or it may need to be free for mechanics
  • A connector port is available, but the manufacturer has set it up to not parse the CAN data through
  • A vehicle/machine may have e.g. two high-speed CAN buses - and the one you need to log from may lack a connector

Further, while the CLX000 can operate in Silent Mode without the CANCrocodile, some users may find extra comfort in the CANCrocodile setup as this is physically separated from the system, i.e. with no electrical connection.

For pure "listening" use cases where you need to log data, the CANCrocodile performs equally to having a direct connection (i.e. cutting the wires or connecting via e.g. a J1939 deutsch connector port).

In some cases, you may experience up to 1% message loss according to specifications. However, in our extensive testing, we found that the loss rate was less than 1 per 250,000 messages at the highest rate (1 Mbps).

If you need to log on-demand messages (rather than only broadcasted CAN data), you'll need to be able to transmit request messages to various ECUs - in which case the CANCrocodile will not work.

Instead, you'll need to configure the Transmit list of the CLX000 to send the relevant requests and then connect it directly (e.g. via a connector port).

When the CLX000 is directly connected to the CAN bus, it'll be powered via the CAN bus power supply. However, when the CANCrocodile acts as gateway, this method of direct power supply won't work. That's why we've developed a custom cable for use with the CANCrocodile/CLX000, adding a plug & play DC connector for adding an external power supply.

A simple solution is to combine this with our cigarette receptacle power supply adapter in vehicle applications - but you can also use e.g. a wallplug or a small battery packs as your power supply for some use cases.

In a standard vehicle (e.g. a car), you'll often be able to locate the CAN wires behind an OBD2/J1939 connector or the ECU ABS/ASR connector. The CAN wires are twisted and can often be recognized by their color.

For a more extensive guide, see the CANCrocodile manual under Tech Specs.


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