ZenRelay – Operations Guide

(For operations, support and fleet administrators)

Written By Support Team

1. Purpose & Scope

This guide explains how to operate ZenRelay once installed and configured:

  • How the relay behaves in daily use

  • How remote ON/OFF is currently handled

  • What to expect from upcoming UI features in ZenduOne

2. How ZenRelay Works in Operation

  • The BLE relay is installed inline with a chosen vehicle circuit (starter, ignition feed, fuel pump, etc.).

  • A ZenTRACK device (Power / Power+ / Solar) communicates with the relay over Bluetooth.

  • The ZenduOne platform sends commands to the ZenTRACK device, which in turn:

    • Authenticates with the relay using:

      • Relay ID (from QR code)

      • Relay password (default 654321 or configured value)

    • Toggles the relay ON (circuit closed) or OFF (circuit open).

The actual effect on the vehicle depends on:

  • Which circuit is controlled (starter, ignition, fuel pump).

  • How the relay is wired (normally open vs normally closed).

3. Current Operational Flow – Manual Cut-Off

Note: This describes the current behavior where the relay is controlled via backend tools, typically by operations/support.

  1. Request received

    • A customer, dispatcher, or operations manager requests a starter/fuel cut-off for a specific vehicle.

    • They provide the vehicle/asset ID.

  2. Validation

    • Operations/support verifies:

      • Correct vehicle

      • Justification and authorization per company policy (e.g., theft, repossession, security)

  3. Command execution

    • An internal user with appropriate permissions uses backend tools to send a relay OFF command to the ZenTRACK device associated with the asset.

    • The ZenTRACK device:

      • Connects to the BLE relay.

      • Authenticates using Relay ID and password.

      • Sets relay state OFF, cutting the chosen circuit.

  4. Confirmation

    • The system returns a status (success/failure).

    • Depending on your policy, you may:

      • Attempt a test start (vehicle should not start).

      • Log the action in a ticket or audit log.

  5. Restoring the circuit

    • When it is safe to restore vehicle operation, operations/support sends a relay ON command to re-enable the circuit.

4. Upcoming Feature – Self-Service in ZenduOne UI

An upcoming ZenduOne update will introduce a Relay / Starter Cut-Off button directly in the platform UI.

Planned behavior (subject to final implementation):

  • On the asset screen, users with the right permissions will be able to:

    • Turn relay OFF – cut the controlled circuit (e.g., starter).

    • Turn relay ON – restore normal operation.

Operational impact:

  • Fleet administrators will have direct control from ZenduOne without going through backend/support.

  • Access to this feature should be controlled with roles/permissions, and actions should be logged (for audit trail).

5. Operational Best Practices

  • Always follow your internal policies before cutting off a vehicle:

    • Legal, safety, and customer agreements must be respected.

  • Ensure that:

    • The vehicle is in a safe location before initiating a cut-off (whenever possible).

    • Staff are trained on which circuit is being controlled and what the impact is (e.g., preventing the next engine start vs shutting off in motion).

  • Keep the Relay ID and circuit description documented for each asset:

    • Example: “Relay ID 123456 – Starter circuit – ZenTRACK Power SN XYZ”.