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Geotab IOX-SATIRDv2 Documentation


For the most up to date version, please visit:

IRIDIUM SatelliteIOX-SATIRDv2 20April (2).jpg

The IRIDIUM Network is useful in the event the Geotab® GO Device travels outside of cellular or network coverage. The IRIDIUM Satellite modem allows the GO device to communicate over the IRIDIUM Network. This allows users to track their fleet even when cellular connectivity is lost.

Man-Down Add-On

An alert button can be wired into the IRIDIUM Satellite IOX®. When triggered, it sends a top priority “emergency” message through the satellite network to the MyGeotab user.

IOX Specifications and Installation

Hardware Technical Specifications


65 g


Overall length: 850 mm

Widest Point: 17 mm × 34 mm


Black, moisture-resistant thermoplastic overmold


CAN: 500 kbps (for daisy chaining)

RS-232 serial interface


Emergency Switch Line: Open — shorted to ground

Power Output

IRIDIUM Interface: 900 mA @ 12 V/24 V

Daisy Chaining: 2500 mA @ 12 V/24 V

Current Rating

Operating Mode: 30 mA

Sleeping Mode: 0.4 mA

Temperature Rating

−40 ℃ to +85 ℃


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

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

12-pin Molex 4302-1200: IRIDIUM modem


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

12-pin plug connects to IRIDIUM unit

Blue/black wires can be connected to an emergency “alert button” switch

Compatible Firmware

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

Installation Instructions

NOTE: Professional Installation Required  Installation of the IOX-SATIRDv2 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-SATIRDv2 installation, read and follow GO device installation instructions ( to verify any existing GO device installation is correct in preparation for IOX-SATIRDv2 installation. Incorrect installation of either the GO device, and/or IOX-SATIRDv2 can result in loss of vehicle control and serious injury.

WARNING! Prior to IOX-SATIRDv2 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.

Mandatory Activation Required

It is mandatory that the IRIDIUM Satellite Modem be activated 24 hours prior to installation. To request activation you must create a support ticket with the subject line: IOX-SATIRDv2 activation request. You must also include the GO Device serial number and IRIDIUM IMEI number in the ticket.


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).


Choose an appropriate mounting location for the satellite modem. Keep in mind that the location you have chosen for the GO device will influence the locations available to mount the IRIDIUM Modem due to the length of wiring on the IOX-SATIRDv2. The installation must not interfere with safe vehicle operation.


The IRIDIUM satellite antenna has a magnet mount, as well as a ring of two-sided tape on the bottom of the antenna to cater to mounting on plastic. The antenna location cannot interfere with the safe operation of the vehicle or obstruct the driver’s field of vision outside the vehicle in any way.


The antenna can be mounted below a dashboard provided there are no metallic objects or other obstructions directly above it that could interfere with satellite reception. It is highly recommended to mount the antenna out of sight and secured with at least one zip tie.


The antenna and IOX-SATIRDv2 cable are both connected to the satellite modem at the same end as the status LEDs. The LEDs indicate Power (RED) and Connection Status (GREEN).


Once your connections to the IOX-SATIRDv2 wiring have been made, connect the GO device and immediately start the vehicle. Your GO device will enter debug mode.


IOX-SATIRDv2 has a two wire pigtail made up of a BLUE wire and a BLACK wire; these are the external trigger wires for the IRIDIUM alert feature. These wires can be connected to a momentary contact switch. When this feature is triggered, the device will start a beeping sequence. The beeping will stop once the message has been received by MyGeotab. A rule can be created in MyGeotab by adding an Engine Rule for Alert button depressed.


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.

IRIDIUM Device Specifications and Parameters

Hardware Technical Specifications


158 g (0.35 lbs)


80 mm (L) × 54 mm (W) × 23 mm (H)


Aluminum casing


RS-232 Interface

Environmental Tests

Operating Temp.: −40 ℃ to +85 ℃

Operating Voltage

8 V to 36 V

Current Rating

Operating Current: 100 mA to 125 mA


Standard with magnetic roof mount and sticky adhesive for optional dash mount.

Standard Logging Features (Activated by Default Custom Parameters*)

*These custom parameters must be applied to a device to receive any IRIDIUM data and they must be applied when the GO Device has cellular coverage. If the vehicle is out of cellular range, it will not be able to receive firmware updates or any other device parameter updates.

*Default IRIDIUM Parameters for Customers

Ignition ON & OFF; Accident Level Events; SATIRD Coverage

<GoParameters><Parameter Description="Monitor IGN ON/OFF, Accident Level Events, SATIRD Coverage" Bytes="3D" Offset="58"/></GoParameters>

Update every 30 min.

<GoParameters><Parameter Description="Satellite update period as 30 min" Bytes="1E" Offset="59"/></GoParameters>

alert Trigger on Aux 1

(Contact Geotab Support to change Aux #)

<GoParameters><Parameter Description="Aux 1 trigger emergency message to be sent via satellite" Bytes="01" Offset="61"/></GoParameters>

Note: Required for GO4v3 Installs Only.

Extended Logging Features (Custom Parameters)*

Important Safety Information and Limitations of Use

For the latest version of the 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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