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Geotab IOX-USB Documentation

IOX-USBIOX-USB for Support Doc.png

For the most up-to-date version, please visit:

The IOX-USB includes an auxiliary USB power adapter for charging and powering USB devices. Constant power to the mobile device allows the driver to use battery intensive applications while in the vehicle. Applications, such as Geotab® Drive, can be used without a worry with this cable. Moreover, it ensures that the display of the tablet/phone powers on and off with ignition.

Note: The IOX-USBM has been discontinued. Use the IOX-USB together with the USB cable (recommended length of 1 meter) supplied with your smartphone/tablet to connect to the Geotab GO device.

Top Features

IOX Specifications and Installation

Hardware Technical Specifications


70 g


Overall Length — IOX-USB: 1150 mm L

Widest 36 mm W × 16 mm H


Black, moisture-resistant thermoplastic overmold


CAN: 500 kbps (for daisy chaining)

USB: Data transfer or charging

Frequency Range

13.56 MHz

Power Output

5 V/1.5 A USB Charger

Current Rating

Operating Mode: 30 mA

Without USB Load: 37 mA

With USB Load 1000 mA: 540 mA

With USB Load 500 mA: 290 mA

With USB Load 1500 mA: 800 mA

Sleep Mode: 0.3 mA

Temperature Rating

−40 ℃ to +85 ℃


Keyed Male Mini-USB Type-B connector: Daisy chain power and CAN in

Keyed Female Mini-USB Type-B connector: Daisy chain power and CAN out

Female USB Type-A connector: USB charger

Compatible Firmware

GO6®:101.4.XX or higher & GO7®:105.2.XX or higher

Installation Instructions

WARNING! Prior to IOX-USB installation, read and follow GO device installation instructions ( to both verify any existing GO device installation is correct and that you are qualified to complete this IOX-USB installation. Incorrect installation of either the GO device, and/or IOX-USB can result in loss of vehicle control and serious injury.

WARNING! Prior to IOX-USB installation, read and follow important safety information, including limitations of use, located following these installation instructions. Always read and follow all safety information to prevent loss of vehicle control and serious injury.


Start with the Geotab GO device unplugged from the vehicle. Remove the IOX expansion port cover on your GO device.


Plug in the 90° USB connector of the IOX to the GO device. Secure the USB connector using a zip tie. Avoid overtightening as it can damage the USB connector.

NOTE: The USB connector can only be inserted in one orientation (see image).


Locate an appropriate spot to mount or conceal the standard USB receiver depending on your application. If various devices will be used with the IOX-USB, it should be mounted where it is easily accessible. This needs to be an area where it will not interfere with the safe operation of the vehicle. Keep the routing of the IOX wiring in mind while choosing a location for the USB receiver.

If the device installation will be permanent, the USB receptacle and connecting USB connector should be secured together (using electrical tape or another suitable method) and concealed.


In some cases the standard USB receptacle can be taped in place provided both surfaces are properly prepared. Once the connection has been made secure the two USB ends together.

Note: The USB cable supplied with your mobile device is required to connect to the IOX-USB. The IOX-USB does not replace the device’s USB cable.


Once your connections to the IOX-USB wiring have been made, connect the GO device and immediately start the vehicle. Your GO device will enter debug mode.


Please verify that the device is communicating correctly. Using a PC or smart phone, navigate to

Fill in your name, company, and the Geotab GO device serial number (found at the bottom of the device) and click on Log Install.


You will now see a screen that displays the current status of the device. If the device is communicating correctly, you will see GREEN lettering with the last valid GPS record. If the text appears in RED, the device is unable to communicate and you must verify the installation.

Termination Shunt IOX V2 Housing.png

You may notice your IOX comes with a termination shunt installed in the expansion port. If you are installing more than one IOX in a daisy chain you will need to remove the shunt from each device in line, with the exception of the last IOX connected. That shunt must remain in the last IOX and should be secured with a zip tie.

The use of the shunt in the last IOX is necessary for the GO device to detect and configure the IOX as effectively as possible.

NOTE: Failing to install the shunt in the last IOX could affect IOX communication. It is recommended that you secure the shunt using a zip tie if not already done.


The IOX-USBPWRF/M, IOX-USBF/M and IOX-USB cannot be used together on the same GO device.

Third-Party Data Communication

To enable third-party data communication on the IOX-USB, apply the following custom parameter to the GO device through MyGeotab:

<GoParameters><Parameter Description="Enable USB Data" Offset="164" Bytes="02"/></GoParameters>

Third-party USB data transfer is only available on the ProPlus plan. If your GO device is on the Pro plan, it will automatically upgrade to the ProPlus plan — with all associated charges — once third-party data transfer begins. If it’s on the Base plan, an upgrade to Pro or ProPlus must be requested.

The IOX-USB operates as a USB 2.0 full-speed host. The maximum data transfer rate is 12 Mbit/s. The IOX-USB uses the Android Open Accessory protocol or USB-CDC (Communications Device Class) to enumerate a USB device.

For details on how to integrate with the GO device via IOX-USB, refer to the Hardware SDK documentation on MyGeotab (

Important Safety Information and Limitations of Use

For the latest version of Limitations of Use, please visit:

WARNING! Do not attempt to install, configure or remove any product from any vehicle while the vehicle is in motion or otherwise in operation. All installation, configuration or removal must be done only in stationary vehicles which are securely parked. Attempting to service units while being operated could result in malfunctions or accidents, leading to death or serious personal injury.

WARNING! All in-vehicle devices and related cabling must be securely fastened and kept clear of all vehicle controls, including gas, brake and clutch pedals. You must inspect devices and cabling on a regular basis to ensure all devices and cabling continue to be securely attached. Loose cabling or devices may impede the use of vehicle controls, resulting in unanticipated acceleration, braking or other loss of vehicle control, which could lead to death or serious personal injury. Improperly fastened in-vehicle devices may detach and impact operators upon sudden acceleration or deceleration, which may cause injury.

WARNING! If at any point after an in-vehicle device is installed a warning light illuminates on the vehicle dash or the vehicle stalls or has a marked drop in performance, shut off the engine, remove the device, and contact your reseller. Continuing to operate a vehicle with these symptoms can cause loss of vehicle control, and serious injury.

WARNING! Your in-vehicle devices must be kept clear of debris, water and other environmental contaminants. Failure to do so may result in units malfunctioning or short-circuiting that can lead to a fire hazard or vehicle damage or serious injury.

WARNING! Do not attempt to remove the devices from the vehicle in which they are originally installed for installation in another vehicle. Not all vehicles share compatibility, and doing so may result in unexpected interactions with your vehicle, including sudden loss of power or shutdown of the vehicle’s engine while in operation or cause your vehicle to operate poorly or erratically and cause death or serious injury and/or vehicle damage.

NOTICE  This product does not contain any user-serviceable parts. Configuration, servicing, and repairs must only be made by an authorized reseller or installer. Unauthorized servicing of these products will void your product warranty.

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