chat support

Geotab IOX-OUTPUTM Documentation


For the most up to date version, please visit:

The IOX-OUTPUTM connects to the Geotab relay kit (SPR-RELAYKIT, and allows the Geotab GO device to control the relay from the vehicle in real-time. The IOX-OUTPUTM can be set to trigger the relay when a predefined condition is met within MyGeotab.

Top Features

Supports 1 × 12 V/24 V relay

WARNING! This product was not designed to be used in a fail-safe manner. This product is not recommended for use in safety-critical applications.

IOX Specifications and Installation

Hardware Technical Specifications


20 g


Overall length: 1100 mm L

Widest point: 36 mm W × 16 mm H


Black, moisture-resistant thermoplastic overmold


CAN: 500 kbps (for daisy chaining)


1 relay driver output wire (white) & 1 ground wire (black)

Relay specification

12 V (coil impedance > 80 ohms) or

24 V (coil impedance > 160 ohms)

Maximum current: 150 mA

Power Output

Daisy Chaining: 2500 mA @ 12 V/24 V

Current Rating

Operating Mode: 30 mA

Sleep Mode: 0.4 mA

Temperature Rating

−40 ℃ to +85 ℃


2 Pin Molex connector

Grounding Ring Terminal

Keyed 5-pin mini-USB type-B plug: Daisy chain power and CAN in

Keyed 5-pin mini-USB type-B socket: Daisy chain power and CAN out


Keyed mini-USB plug connects to the GO device or another IOX harness

Output wires connect to the intended circuit

Compatible Firmware

GO6®:102.7.XX or higher & GO7®:107.5.XX or higher

Installation Instructions

NOTE: Professional Installation Required — Installation of the IOX-OUTPUTM requires the installer have sufficient technical knowledge and expertise for mobile device installation and integration into modern vehicles, i.e. Certified Geotab® Installer certification or equivalent.

WARNING! Prior to IOX-OUTPUTM installation, read and follow GO device installation instructions ( to verify that any existing GO device installation is correct in preparation for IOX-OUTPUTM installation. Incorrect installation of either the GO device, and/or IOX-OUTPUTM can result in loss of vehicle control and serious injury.

WARNING! Prior to IOX-OUTPUTM 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).


The IOX-OUTPUTM has two connectors: a white connector (white output wire) and a ring terminal (black ground wire). Connect the grounding terminal (black wire) to the vehicle ground. Connect the relay driver output (white wire) to a SPR-RELAYKIT using the white two pin molex connector. Refer to the SPR-RELAYKIT document ( for instructions on how to install the relay kit.

If you are not using a SPR-RELAYKIT, see the Installation Diagram on page 4 for installation instructions.


Once your connections to the IOX-OUTPUTM 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 ShuntIOX 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.

SDK Add-In Example

For testing and verification, Geotab has developed a custom Add-In for the IOX-OUTPUTM that allows you to trigger the IOX-OUTPUTM on or off. Please visit the MyGeotab SDK to download the IOX-OUTPUT Add-In.

Installation Diagram


Connect the black wire of the IOX-OUTPUTM to the vehicle's ground.


Connect the white wire of the IOX-OUTPUTM to one side of the relay coil.


Connect the other side of the relay coil to the positive terminal of the vehicle's battery.


Connect wires from the relay switching contacts to the load as required.


For a 12 V relay, use a coil impedance greater than 80 ohms.

For a 24 V relay, use a coil impedance greater than 160 ohms.

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.

Copyright © Geotab Inc. 2016-2018 - All Rights Reserved | | Rev 1.3 - 12/2018

® denotes a trademark of Geotab Inc., registered in Canada, the United States and other countries