Technical Specifications¶

This page describes the hardware and electrical characteristics of the IOcan CAN
gateway. Higher-level protocol support, transmission-specific behaviour, and
configuration details are documented on separate pages. For connector pin
assignments, see CAN Gateway Pinout.

• Table of contents
• Technical Specifications
  • Power Supply
  • CAN Interfaces
  • USB Interface
  • Analog Inputs
  • Frequency Inputs
  • Sensor Supply
  • Digital Outputs
  • Transmission Power and Wake-up
  • Power Monitoring
  • Connector
  • Environmental and Mechanical
  • Summary

Power Supply¶

The device is designed for permanent battery connection via fuse. Transmission
power sequencing and wake-up behaviour are managed internally. In USB-only mode
the device logic can be powered for configuration without vehicle power, and the
transmission power output remains disabled.

CAN Interfaces¶

USB Interface¶

Analog Inputs¶

IOcan provides 11 analog inputs using resistor dividers that allow measurement of
automotive voltage ranges while protecting the internal ADC.

Selected channels also support additional operating modes:

• digital input mode
• analog-switch / resistor-ladder mode (several buttons on one pin)
• frequency input mode

Typical applications: ignition and switch signals, digital signals from ECUs,
throttle-position sensors, pressure sensors, and position sensors. See
Configuration Concepts for how inputs are assigned and scaled.

Frequency Inputs¶

Signal conditioning and scaling are configurable in software.

Sensor Supply¶

Using the dedicated sensor ground improves measurement accuracy and reduces noise.

Digital Outputs¶

Typical applications: relay control, indicator outputs, and actuator control.
Output behaviour is fully configurable.

Transmission Power and Wake-up¶

All transmission power control and wake-up signalling is handled directly by the
device. External relays are not required, and internal logic ensures correct
startup and shutdown sequencing.

Power Monitoring¶

IOcan can measure the transmission's current draw, supporting system monitoring,
diagnostics, and safety/fault detection.

Connector¶

| Main connector | TE Connectivity Superseal 1.0, 26-pin, 2-row |

Pin assignments and wiring details are documented in CAN Gateway Pinout.

Environmental and Mechanical¶

IOcan is designed for automotive environments. Proper wiring and grounding are
required for reliable operation:

• twisted-pair wiring for CAN networks
• short CAN stubs
• 120 Ω termination at both ends of the bus
• properly crimped terminals (soldering is discouraged — flux residue causes wires to corrode and stiffen)

This device controls part of the powertrain. Take great care when wiring the
device and the transmission.

Summary¶