Technical specifications¶

This page describes the hardware and electrical characteristics of the IOcan CAN gateway. Higher-level protocol support, transmission-specific behavior, and configuration details are documented on separate pages.

Power Supply and Electrical Characteristics¶

• Nominal operating supply voltage: 14.4 V
• Absolute maximum supply voltage: 18 V
• Maximum system current: < 20 A
• Internal fuse rating: 30 A
• Reverse polarity protection: Yes
• Wake-up voltage threshold: 4.5 V ± 0.3 V

The device is designed for permanent battery connection via fuse. Transmission power sequencing and wake-up behavior are managed internally.

⸻

CAN Interfaces¶

• Number of CAN interfaces: 4
• CAN controller and transceiver: MCP2558FD
• Supported standards:
  • Classical CAN (CAN 2.0A / 2.0B)
  • CAN FD
• Supported bitrates:
  • Classical CAN: up to 1 Mbps
  • CAN FD data phase: up to 8 Mbps
• Bitrate selection: Fully configurable
• Switchable 120 Ω termination on each CAN network

⸻

USB Interface¶

• Connector type: USB-C
• USB speed: 480 Mbps (USB 2.0 High Speed)
• USB function:
  • Device configuration
  • Data logging
  • Diagnostics
• Configuration software: Dedicated IOcan configuration tool
• CAN data access:
  • CAN traffic logging
  • candump-compatible CAN output over USB

⸻

Inputs¶

• Total analog inputs: 11
  • 7 inputs with 0–12 V range
  • 4 inputs with 0–5 V range
• Frequency inputs: 4
  • Shared with analog inputs
• Input usage:
  • Sensor inputs
  • Shifter inputs
  • Button and switch inputs
  • Custom user-defined signals

⸻

Outputs¶

• Transmission wake-up output: Dedicated
• Digital outputs: 5
• Maximum current per output: 0.9 A
• Outputs shared with analog input pins
• Transmission power output:
• Integrated semiconductor relay
• Rated current: 15 A
• Used for KL30B transmission power control

All transmission power control and wake-up signaling is handled directly by the device.

⸻

Connectors¶

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

Pin assignments and wiring details are documented in the Pinout section of the wiki.

⸻

Power Monitoring¶

• Transmission current measurement: Supported
• Purpose:
  • System monitoring
  • Diagnostics
  • Safety and fault detection

⸻

Environmental and Mechanical Characteristics

• Physical dimensions: To be specified
• Weight: To be specified