# 5.3 | Powering COMMAND

Select the appropriate power supply method based on ECU mounting location.

## Cab-Mounted ECU

**COMMAND** can be powered using an available cab convenience power socket along with the **T3H-F001** Power Adaptor provided by T3RRA. When mounted in-cab this is the preferred option. If no convenience power outlets are available, consider using a adapter instead of **T3H-F001** if power strip connections are available.

<table border="1" class="align-center" id="bkmrk-" style="border-collapse: collapse; width: 97.0238%; height: 388px;"><tbody><tr style="height: 329.395px;"><td style="height: 329.395px; width: 37.2468%;">[![image.png](https://docs.t3rra.com/uploads/images/gallery/2025-05/scaled-1680-/image.png)](https://docs.t3rra.com/uploads/images/gallery/2025-05/image.png)

**Convenience Power and Power Strip Outlets**

</td><td style="height: 329.395px; width: 31.838%;">[![image.png](https://docs.t3rra.com/uploads/images/gallery/2025-05/scaled-1680-/JKGimage.png)](https://docs.t3rra.com/uploads/images/gallery/2025-05/JKGimage.png)

**T3H-F001**

</td><td style="width: 30.9776%;">[![image.png](https://docs.t3rra.com/uploads/images/gallery/2025-07/scaled-1680-/I5lwggi33GdBQbWW-image.png)](https://docs.t3rra.com/uploads/images/gallery/2025-07/I5lwggi33GdBQbWW-image.png)

**T3H-C002 / T3H-C006** 2-pin Power Input

</td></tr></tbody></table>

## Rear-Panel / ISOBUS Mounted ECU

If the **COMMAND** ECU is mounted under the rear panel of the tractor, we recommend powering using a Constant Power Harness kit (<span data-sheets-root="1">**CNH 115-0172-397/8 OR** </span>**JD** <span data-sheets-root="1">**BPF10403/4**</span>).

[![image.png](https://docs.t3rra.com/uploads/images/gallery/2025-05/scaled-1680-/4kHimage.png)](https://docs.t3rra.com/uploads/images/gallery/2025-05/4kHimage.png)

## Alternative Power Connection

Alternatively, connecting to any available switched power studs underneath the cab, making sure to use a **T3H-F003** inline fuse adapter and creating a 2-core cable of appropriate length.

<p class="callout warning">Do <span style="text-decoration: underline;">**NOT**</span> connect unswitched/battery power to **COMMAND's** power input as this will drain battery while the tractor is switched off.</p>