Hardware Guide

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Rev. 3 Micronet SmartCAM™ - Hardware Guide 32 / 50
Figure 14: Molex 10-Pin Male Connector
SAE J1939 CANBus
The SmartCAM™ enhanced model provides two SAE J1939 CANBus ports that enable the connection of a
variety of vehicle peripherals, such as the vehicle's computer, vehicle's sensors and so on.
The provided CANBus V2.0B (a 1 Mbps port) supports the following functionality:
• 0 - 8-byte length in the data field
• Standard and extended data and remote frames
• Two receive buffers with prioritized message storage
• Six 29-bit filters
• Two 29-bit masks
• Three transmit buffers with prioritization and abort features
Single Wire CAN
The SmartCAM™ enhanced provides SAE J2411 single wire for CAN network applications with low
requirements regarding bit rate and bus length. The communication takes place via just one bus line with a
nominal data rate of 33,3 Kbit/s (83,3 Kbit/s in high-speed mode for diagnostics).
SAE J1708
The SmartCAM™ enhanced provides SAE J1708 port. The SAE J1708 is a standard used for serial
communications between ECUs on a heavy-duty vehicle and between a computer and the vehicle. With
respect to Open System Interconnection model (OSI), J1708 defines the physical layer. If connected to the
J1708 port only one other J1939 port will be available.
Serial Communication
The enhanced model similarly supports a serial communication ports for external device connections, and a
debug port connected to the MCU Co-Processor. These ports support various hardware and software flow