The RZ1 Auxiliary Input Accessory expands the RZ1 Hub’s functionality by adding multiple input and output connections. It connects directly to the RZ1’s 10 pin I/O port and enables integration with external switches, sensors, or vehicle systems such as PTOs, ignition lines, or push buttons. When voltage is detected on an input line, the RZ1 can generate an event and associate it with trip data, driver behavior, or recorded video.
Input and Output Lines Overview

The RZ1 Auxiliary Input Accessory connects to the RZ1 I/O port and adds 10 connection lines for sensors and external systems.
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IN-1 (Yellow): General-purpose input for PTOs, switches, or push buttons.
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I-IN-2 (Orange): Dedicated ignition input for engine ON/OFF detection.
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IN-3 (Brown): Secondary input for auxiliary devices or sensors.
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LSD1-OUT (Yellow): Low-side output for controlling small loads or relays.
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OUT-1 / OUT-2 (Blue): Configurable outputs for future or optional functions.
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GND (Black): Four ground lines for stable and flexible grounding.
Supported Inputs:
The following input lines are supported for event reporting and configuration:
| Function |
Wire Label (Color) |
Pin Location |
| Digital Input 1 |
IN-1 (Yellow) |
Pin 2 |
| Ignition (Digital In 2) |
I-IN-2 (Orange) |
Pin 4 |
| Digital Input 3 |
IN-3 (Brown) |
Pin 9 |
| Ground |
GND (Black) |
Pins 1, 5, 6, 10 |
Supported Events
Digital In 1 and Digital In 3 are available as safety events.To learn more about how these events appear and function in the platform, see Understanding Safety Events.
Wiring & Usage
To learn how to wire and use these inputs, see Using the RZ1 Auxiliary Input Accessory for Power Detection and Using the RZ1 Auxiliary Input Accessory for Ignition Detection.