Hardware

Kvaser has developed the USBcan Pro 4xCAN Silent, a compact, multichannel four-channel CAN/CAN FD to USB real-time interface that is always silent on the CAN bus (‘listen only’). The CAN interface is made silent through hardware and thus, cannot transmit on bus.

Standard CAN interfaces receive and transmit CAN messages, enabling them to be used to configure the system to which they are connected. However, as Kvaser explains, certain customers, particularly those developing highly sensitive autonomous or safety-critical systems, require CAN interfaces capable of listening only, to ensure that the interface has no impact on the bus or surrounding systems. Listen-only interfaces are also used to prevent any application or third-party, such as a hacker, from impacting the CANbus and its related systems through the Kvaser device.