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1 INTRODUCTION
A Controller Area Network (CAN) is a high-integrity asynchronous serial bus system for
networking intelligent devices. It is often used in automotive and industrial systems.
The USB-2CAN-M/USB-2CAN-SI-M are designed to make a fast, simple way to
communicate with CAN bus devices. Connected to a USB port on your computer or
USB hub, the USB-2CAN-M/USB-2CAN-SI-M instantly adds an industrial CAN bus
channel to your host system with easy plug and play (PnP) and hot plug features.
The USB-2CAN-M/USB-2CAN-SI-M provides a cost-effective solution for customers to
enable communication with CAN bus devices. The solution designed by ARM Cortex-
M0 32-bit microcontroller and the USB to serial chip makes it very flexible in handling
small burst of CAN frames at a high speed.
Upon plugging the USB-2CAN-M/USB-2CAN-SI-M into the USB port, the adapter is
automatically detected and installed. The USB CAN bus adapter provides instant
connectivity to CAN bus devices. The USB-2CAN-M/USB-2CAN-SI-M provides an
industrial solution for applications of CAN bus multi-drop communications over short
and long distances.
The USB to CAN adapter does not require a power supply. It is powered by a USB port.
The USB-2CAN-M requires 300mA, while the USB-2CAN-SI-M requires 500mA. They
must be connected directly to a USB host port or a self-powered USB hub. However,
bus-powered USB hubs cannot provide the required current, as they only provide
100mA current.
The USB-2CAN-SI-M has 2500V galvanic isolation on its CAN bus. The galvanic isolation
protects your computer by preventing spikes and surges from crossing over to your
computer.
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