Sintrones EMUC-B202-W3 USB to Dual Isolated CAN Adapter with CANopen Firmware

On industrial machines, drives, I/O modules and motion controllers often share a CANopen network, and the controller PC on the machine needs an isolated connection to it. The Sintrones EMUC-B202-W3 is the CANopen build of the EMUC-B202 series: the same two-port isolated Mini PCIe card as its siblings, with firmware that supports CANopen alongside basic CAN 2.0B, for industrial automation work.

The EMUC-B202-W3 connects to the host over USB 2.0. Its two CAN ports follow CAN 2.0B, backward compatible with 2.0A, at 100, 125, 250, 500 (default), 800 or 1000 kbit/s, though not 50 kbit/s. It receives up to 6000 messages per second, with an acceptance filter, listen-only mode, error status and saved configuration that survives a hardware reboot, plus firmware upgrade and an additional driver for Linux SocketCAN.

The ports leave the card on headers and become DB9 connectors through the supplied cables, with CAN-L on pin 2, ground on pin 3 and CAN-H on pin 7, and termination set by jumper. A third mounting hole and USB pin header allow installation away from a Mini Card socket. For vehicle buses, the EMUC-B202-W1 runs basic CAN 2.0B firmware and the EMUC-B202-W2 runs SAE J1939, both on the same hardware.

The card draws 1.62 W (490 mA at 3.3 V) and runs from -40 °C to 85 °C, with storage from -55 °C to 95 °C, 5 G vibration from 7 to 2000 Hz and 50 G shock at 0.5 ms. Sintrones lists 2.5 kV HiPOT protection to IEC 60950-1, 2.5 kV surge protection to EN 61000-4-5 and ESD protection to EN 61000-4-2 at 15 kV air and 8 kV contact. It suits Sintrones computers with a free full-size Mini PCIe slot that carries USB 2.0, and we fit and test the EMUC-B202-W3 in the host computer as part of the build, with the DB9 cables brought out to the enclosure.