Mastering Geotab
★ Geotab Harnesses · GO10 (Next Gen GO) Harnesses
The HRN-XGL06S6 is Geotab's integrated auxiliaries harness for the GO10, and it is required to reach the device's built-in input and output pins. It is sold separately and measures 200 cm.
The HRN-XGL06S6 is the integrated auxiliaries harness for the Geotab GO10, the lead that gives access to the device's built-in input and output pins. Geotab states it is required to use those auxiliary (GPIO) features and sells it separately from the GO10. Unlike the vehicle harnesses on this site, it does not connect the GO10 to a diagnostic port. Its job is to bring outside signals in, and send one switched signal out.
Earlier GO installs often needed an add-on module for basic switch monitoring. The GO10 builds four inputs and an output into the device itself, and this harness is how an installer physically reaches them.
This harness is tied to the device, not to a vehicle type. Geotab lists it under the Next Gen GO harnesses for the GO10, and it works alongside whichever vehicle harness the GO10 is using, whether that is a light-duty OBD-II kit, a heavy-duty Deutsch kit or a three-wire power kit. Geotab does not list it as replacing an older part.
The length is 200 cm (78.7 in). Behind it sit the GO10's auxiliary features as Geotab documents them: four software-configurable inputs that accept 0 to 30 V and can be set as generic digital inputs (AUX9 to AUX12) or generic analog inputs (ANALOG9 to ANALOG12), plus one open-drain digital output rated at 150 mA maximum. For a driven digital input, Geotab gives a low reading below 100 mV and a high reading above 3.3 V.
Location and engine data tell a manager where a truck went. Auxiliary inputs tell them what the truck did while it was there. On our installs, inputs like these typically report things such as a power take-off engaging, a body door opening, a beacon switch, or a seatbelt signal, each of which the GO10 can log against the trip once the input is set up in MyGeotab.
The output covers the other direction. A low-current switched signal can trigger a relay, which can in turn sound a cab alert or control an accessory, depending on how the fleet configures its rules. Getting four inputs and an output from the device itself, through one harness, keeps the install compact compared with adding separate hardware for each signal.
No standalone instruction sheet exists for this part in Geotab's harness guide, which leaves the GO10 installation instructions and normal Geotab practice as the reference. Our sequence on a typical job:
Geotab's 2 m (6.5 ft) total limit and its ban on joining two T-harnesses apply to the vehicle connection the GO10 sits on, and the auxiliary lead is already a full 2 m on its own, so we place the device where the lead reaches every signal without any extension.
| Spec | Detail |
|---|---|
| Part number | HRN-XGL06S6 |
| Purpose | Access to the GO10's built-in auxiliaries / GPIO |
| Device | GO10 (sold separately from the device) |
| Length | 200 cm (78.7 in) |
| Replaces | Nothing listed |
| Inputs on the GO10 | 4 software-configurable, 0 to 30 V, digital (AUX9 to AUX12) or analog (ANALOG9 to ANALOG12) |
| Output on the GO10 | 1 open-drain digital output, 150 mA maximum |
| Instruction sheet | None published; follow the GO10 installation instructions |
Treat the 150 mA output figure as a hard limit: a horn, strobe or lamp will draw more, so a relay goes in between every time. Measure each input source with a meter before splicing, both resting and active, so the thresholds in MyGeotab match what the wire really does. Signals that float, with no clear high or low, give false events; Geotab's input logic depends on how the input is wired, so we confirm the switch actually drives the line. Label every conductor at the device end, because the next technician will thank you.
No. It is only needed when the job uses the GO10's built-in auxiliary inputs or output. A plain tracking install with a vehicle harness does not require it.
Geotab rates the output at 150 mA maximum and describes it as open-drain, so anything heavier is switched through a relay rather than wired straight to the output.
The GO10 has four software-configurable inputs, numbered AUX9 to AUX12 when used as digital and ANALOG9 to ANALOG12 when used as analog, so up to four signals.
Wiring auxiliary inputs is detailed work, and our technicians handle it on site at your yard along with the GO10 and its vehicle harness, all supplied by API Signal. Talk it through with us at 803-513-1009 or describe the signals you want logged on Get a Quote.
Sources: Geotab harness identification document, Geotab GO10 specifications. GEOTAB is a registered trademark of Geotab Inc. API Signal is an independent installer and is not Geotab.
Tell us how many vehicles and what they are. We'll quote the hardware and the install together.