Geotab HRN-GA23WIRE Harness

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What Is the HRN-GA23WIRE?

The HRN-GA23WIRE is a three-wire power harness that connects a Geotab GO Anywhere Plus asset tracker to an asset's own electrical system. One end is the 6-pin Chogori connector that locks onto the tracker, and the other end is a set of flying leads: red for constant power, yellow for ignition and black for ground.

Out of the box, the GO Anywhere Plus can run on its internal battery alone. Wiring it in changes what it can do. Geotab says a wired unit uses its full tracking algorithm to rebuild trips in near real time, reports battery voltage and ignition events, and draws on the host battery so the internal pack lasts longer. On a generator or loader, that means run time and engine hours, not just a dot on a map.

Geotab positions this harness for the large majority of industrial, towed and construction equipment, specifically the machines that do not use a negative battery disconnect switch.

Which Vehicles and Devices Does the HRN-GA23WIRE Work With?

The harness pairs with one device, the GO Anywhere Plus. Geotab's target list is industrial, towed and construction equipment, and its install guide connects the leads to the battery plus a suitable ignition signal, with the alternator field wire named as one option. The tracker accepts 12 V and 24 V systems.

The cable is 160 cm (63 in) long, and Geotab caps the connected run at 1.7 m (5.6 ft). The kit includes the HRN-5AFUSEKIT. Geotab is explicit that the HRN-2AFUSEKIT does not belong with this harness.

The deciding question before ordering is how the machine isolates its battery. If there is no negative battery disconnect, this is the harness. If there is one, Geotab points to the HRN-GA2EXTPWR instead.

What Problem Does It Solve on the Job?

Rental yards, contractors and public works departments share the same gap: an asset tracker on battery alone tells them where a machine is, but not whether it ran. Billing by the hour, scheduling service by hours and catching a machine left idling all need an ignition signal. The yellow lead supplies it.

Geotab draws a useful distinction here. Ignition taken from a key switch shows when the key was on, while ignition taken from the alternator reflects when the engine was actually turning and charging. On equipment where operators leave keys switched on, the alternator source gives the more honest number.

How Is the HRN-GA23WIRE Installed?

Geotab's GO Anywhere Plus three-wire guide sets out the order of work. In summary:

• Park the asset securely and never work on it while it is moving or operating. Note the serial number, asset ID, plate and VIN.
• Pick a mounting spot with solid backing and a clear view of the sky with no metal overhead. Check behind the surface for wires before drilling.
• Prove the sources with a digital multimeter: constant should read 12 or 24 V at all times; ignition should read full voltage on run and 0 V off.
• Build the fuse holders from the HRN-5AFUSEKIT and place them within a few inches of the power connection point, as the guide directs.
• Mount the unit with the supplied screws or the optional ACC-GAMAG magnets, then seat the keyed connector, tighten until snug and add a further quarter turn.
• Make the red, yellow and black connections, run every exposed wire in loom, use grommets where wire passes through metal and tie off the slack.
• Switch the ignition on and press the device button. A solid green light for 15 seconds means wired power and ignition were detected. Then register the unit in MyInstall, where a pass means it reached the network in the last 24 hours.

Which Related Harnesses Should You Compare?

• HRN-GA2EXTPWR: adds a chassis lead for the minority of equipment that has a negative battery disconnect.
• HRN-GA2NATRL: draws power from a trailer's J560 plug instead of a machine battery.
• HRN-GA2CARCIG: plugs into a power socket, with no splicing.
• HRN-RW03K4-A: the three-wire kit for GO RUGGED devices rather than the GO Anywhere Plus.

What Are Common Questions About the HRN-GA23WIRE?

Can the HRN-GA23WIRE be used on a machine with a negative battery disconnect switch?

Geotab intends this harness for equipment that does not have a negative battery disconnect. Machines that do have one are matched to the HRN-GA2EXTPWR, which adds a chassis connection.

Which fuse kit goes with the HRN-GA23WIRE?

It uses the HRN-5AFUSEKIT. Geotab states the HRN-2AFUSEKIT is not compatible with this harness, because that kit belongs with the HRN-GA2NATRL trailer harness.

Where should the yellow ignition wire connect?

Geotab accepts either a key-switched ignition circuit or the alternator, and notes the alternator gives a truer picture of idle and run time. We confirm the circuit reads full voltage with the key on and zero with it off before connecting.

API Signal supplies and installs Geotab harnesses and devices on site at the customer's yard, from a single generator to a full equipment lot. Call 803-513-1009 or use Get a Quote to schedule the work.

Sources: Geotab Harness Identification and Application, Geotab GO Anywhere Plus 3-wire install guide, Geotab GO Anywhere Plus overview, Geotab GO Anywhere Plus device configurations. GEOTAB is a registered trademark of Geotab Inc. API Signal is an independent installer and is not Geotab.