Rally Tripmaster HUB Setup - mechanical assembly

When combined with the Carpe Iter Rally Tripmaster HUB, the Terrain Command III allows you to control up to two Tripmaster units and an Android navigation device simultaneously. No rewiring is needed—toggle between external Rally Tripmaster control (such as ICO) and standard GPS app control via an on-screen software switch in NGH. Installation is fully plug-and-play.

Installation Instructions

Always install the Rally Tripmaster HUB while the Terrain Command III is disconnected from power. The Terrain Command III automatically detects the presence of the Rally Tripmaster HUB upon power cycle. Ensure that the firmware on your Terrain Command III is up-to-date. Software mapping and configuration for controlling the external rally tripmaster are handled in the NGH interface (covered in a dedicated support guide).

Testing Before Final Assembly: Always test button and toggle functions before reinstalling fairings, headlights, or securing wiring. Connect the Terrain Command to power and press each button/toggle. The status LED on the Terrain Command HUB will illuminate green during activation. If the LED does not turn green, or if it remains constantly green without input, check your wiring connections.

Securing Connectors: Due to heavy vibration and shock in rally environments, securely fasten all circular connectors with thread-lock glue or electrical tape once testing is complete.

Connector Identification

Each Rally Tripmaster HUB lead is labeled to indicate its mating component:

• Trip: Connects to the external Rally Tripmaster interface (standard rally 3-button switch connector).
• BTN: Connects to the Terrain Command III Nylon button section.
• Tog: Connects to the Toggle Switch Adapter for Tripmaster HUB. Either the Toggle Switch Short or Toggle Switch Long then plugs into the adapter.

Note: The Toggle Switch Adapter is strictly required when connecting a Toggle Switch to the Rally Tripmaster HUB. It is not required when connecting a Toggle Switch directly to the Terrain Command III HUB. Connectors are keyed with internal alignment elements—never force a connection.

Hardware Overview

The core controller is the Terrain Command III HUB, available with the Terrain Command III kit or the Terrain Command Rally Kit.

Toggle Switches can be purchased as a kit (including CNC machined aluminum brackets) or individually as spare parts (Toggle Switch Short, Toggle Switch Long). Brackets are offered in Type A (traditional rally style) and Type B (for bikes with large stock switchgear), supporting single-switch or dual-switch configurations. The Rally Tripmaster HUB is sold separately.

Typical Configurations and Wiring Plans

A. Single Rally Tripmaster Setup (One Rally Tripmaster HUB)

1. One Nylon Button Section and 1 Toggle Switch

   Required Components:

   • Terrain Command III HUB: 1x
   • Rally Tripmaster HUB: 1x
   • Nylon Button Section: 1x
   • Toggle Switch: 1x
   • Toggle Switch CNC bracket (single toggle): 1x
   • External Rally Tripmaster (ICO 3-button compatible): 1x

   Wiring Scheme:

   • Rally Tripmaster HUB → "BTN1" port on Terrain Command III HUB
   • Toggle Switch → "BTN2" port on Terrain Command III HUB
   • Nylon Button Section → "BTN" port on Rally Tripmaster HUB
   • External Rally Tripmaster button lead → "Trip" port on Rally Tripmaster HUB

   

2. One Nylon Button Section and 2 Toggle Switches

   Required Components:

   • Terrain Command III HUB: 1x
   • Rally Tripmaster HUB: 1x
   • Toggle Switch Adapter for Tripmaster HUB: 1x
   • Nylon Button Section: 1x
   • Toggle Switch: 2x
   • Toggle Switch CNC bracket (dual toggle): 1x
   • External Rally Tripmaster (ICO 3-button compatible): 1x

   Wiring Scheme:

   • Rally Tripmaster HUB → "BTN1" port on Terrain Command III HUB
   • First Toggle Switch → "BTN2" port on Terrain Command III HUB
   • Nylon Button Section → "BTN" port on Rally Tripmaster HUB
   • Toggle Switch Adapter for Tripmaster HUB → "Tog" port on Rally Tripmaster HUB
   • Second Toggle Switch → Toggle Switch Adapter for Tripmaster HUB
   • External Rally Tripmaster button lead → "Trip" port on Rally Tripmaster HUB

   

3. Two Nylon Button Sections and 1 Toggle Switch

   Required Components:

   • Terrain Command III HUB: 1x
   • Rally Tripmaster HUB: 1x
   • Nylon Button Section: 2x
   • Toggle Switch: 1x
   • Toggle Switch Adapter for Terrain Command: 1x
   • Toggle Switch CNC bracket (single toggle): 1x
   • External Rally Tripmaster (ICO 3-button compatible): 1x

   Wiring Scheme:

   • Rally Tripmaster HUB → "BTN1" port on Terrain Command III HUB
   • Toggle Switch Adapter for Terrain Command → "BTN2" port on Terrain Command III HUB
   • First Nylon Button Section → Toggle Switch Adapter for Terrain Command (sockets are interchangeable)
   • Toggle Switch → Toggle Switch Adapter for Terrain Command (sockets are interchangeable)
   • Second Nylon Button Section → "BTN" port on Rally Tripmaster HUB
   • External Rally Tripmaster button lead → "Trip" port on Rally Tripmaster HUB

   

4. Two Nylon Button Sections and 2 Toggle Switches

   Required Components:

   • Terrain Command III HUB: 1x
   • Rally Tripmaster HUB: 1x
   • Toggle Switch Adapter for Tripmaster HUB: 1x
   • Toggle Switch Adapter for Terrain Command: 1x
   • Nylon Button Section: 2x
   • Toggle Switch: 2x
   • Toggle Switch CNC bracket (dual toggle): 1x
   • External Rally Tripmaster (ICO 3-button compatible): 1x

   Wiring Scheme:

   • Rally Tripmaster HUB → "BTN1" port on Terrain Command III HUB
   • Toggle Switch Adapter for Terrain Command → "BTN2" port on Terrain Command III HUB
   • First Nylon Button Section → Toggle Switch Adapter for Terrain Command (sockets are interchangeable)
   • First Toggle Switch → Toggle Switch Adapter for Terrain Command (sockets are interchangeable)
   • Second Nylon Button Section → "BTN" port on Rally Tripmaster HUB
   • Toggle Switch Adapter for Tripmaster HUB → "Tog" port on Rally Tripmaster HUB
   • Second Toggle Switch → Toggle Switch Adapter for Tripmaster HUB
   • External Rally Tripmaster button lead → "Trip" port on Rally Tripmaster HUB

   

B. Dual Rally Tripmaster Setup (Two Rally Tripmaster HUBs)

Dual Tripmaster setups require two Nylon Button Sections to provide sufficient physical control inputs.

1. Two Nylon Button Sections and 1 Toggle Switch

   Required Components:

   • Terrain Command III HUB: 1x
   • Rally Tripmaster HUB: 2x
   • Toggle Switch Adapter for Tripmaster HUB: 1x
   • Nylon Button Section: 2x
   • Toggle Switch: 1x
   • Toggle Switch CNC bracket (single toggle): 1x
   • External Rally Tripmaster (ICO 3-button compatible): 2x

   Wiring Scheme:

   • First Rally Tripmaster HUB → "BTN1" port on Terrain Command III HUB
   • Second Rally Tripmaster HUB → "BTN2" port on Terrain Command III HUB
   • Nylon Button Sections → "BTN" port on each Rally Tripmaster HUB (one per HUB)
   • Toggle Switch Adapter for Tripmaster HUB → "Tog" port on the Rally Tripmaster HUB connected to BTN1
   • Toggle Switch → Toggle Switch Adapter for Tripmaster HUB
   • External Rally Tripmaster button leads → "Trip" port on each Rally Tripmaster HUB (one per HUB)

   

2. Two Nylon Button Sections and 2 Toggle Switches

   Required Components:

   • Terrain Command III HUB: 1x
   • Rally Tripmaster HUB: 2x
   • Toggle Switch Adapter for Tripmaster HUB: 2x
   • Nylon Button Section: 2x
   • Toggle Switch: 2x
   • Toggle Switch CNC bracket (dual toggle): 1x
   • External Rally Tripmaster (ICO 3-button compatible): 2x

   Wiring Scheme:

   • First Rally Tripmaster HUB → "BTN1" port on Terrain Command III HUB
   • Second Rally Tripmaster HUB → "BTN2" port on Terrain Command III HUB
   • Nylon Button Sections → "BTN" port on each Rally Tripmaster HUB (one per HUB)
   • Toggle Switch Adapters for Tripmaster HUB → "Tog" port on each Rally Tripmaster HUB (one per HUB)
   • Toggle Switches → Toggle Switch Adapter for Tripmaster HUB (one per adapter)
   • External Rally Tripmaster button leads → "Trip" port on each Rally Tripmaster HUB (one per HUB)

   

Optional Toggle Switches: While the Nylon Buttons provide basic system control, adding Toggle Switches is recommended for digital roadbook navigation (e.g., continuous up/down scrolling) during competition.