General
Number of ports	2 CAN
Maximum number of boards per system	8

The Moxa CB-602I-T is an industrial 2-port CAN-Bus adapter in PC/104-Plus format, specifically designed for use in demanding embedded systems. The module enables communication over CAN-Bus networks according to the standards CAN 2.0A and CAN 2.0B, and is designed for operation in environments with extreme temperatures. The CB-602I-T version covers an operating temperature range of -40 to 85 °C, making it suitable for industrial applications in climatically challenging environments such as outdoor installations or production facilities. Communication takes place via two independent CAN interfaces, enabling flexible network topologies. Each port features a Tx/Rx-LED, visually indicating the communication status and thus supporting diagnosis of network activities.

Applications

The module is intended for use in industrial control and automation systems, particularly in environments subject to high mechanical and thermal stress. Typical application scenarios include integration into industrial PC systems built with PC/104-Plus interfaces, as well as in vehicle systems, power supply installations, or machine controls, where reliable, interference-resistant communication is required. The high temperature resistance also makes it suitable for mobile or outdoor devices.

Functions and Features in Detail

The CB-602I-T uses the NXP SJA1000 as CAN controller, known for its reliability and error detection capabilities. In combination with the PCA82C251 transceiver, the module ensures secure bus arbitration and robust data transmission. The transmission rate is user-configurable and ranges from 10 kbps to 1000 kbps, with the maximum rate of 1 Mbps (1000 kbps) sufficient for fast data transfer in time-critical applications. An optional 120-Ohm termination resistor can be activated to ensure signal integrity in the CAN network, especially with longer cables or in complex topologies.

Technology Explained Simply

The 2 kV electrical isolation protects the module and the connected system from voltage surges, disturbances, or potential differences caused by electrical discharges or power fluctuations. This is particularly important in industrial environments where high electrical loads and electromagnetic interference occur. The PC/104-Plus interface enables modular expansion of embedded computers, allowing up to 8 boards per system to be stacked. This provides flexibility for system expansion and integration of various functions within a compact housing.

Compatibility and Accessories

The module is designed for operation under Windows and is delivered with Windows drivers, a DLL library, and sample code to enable quick integration into custom software applications. The software support facilitates the development of applications based on CAN data, such as diagnostic or control software. The interface is via a 20-pin box header, standard in PC/104-Plus systems.

Mounting and Installation

Installation is performed by inserting the module into a PC/104-Plus system, where it is directly plugged onto the main board. No additional components or tools are required, as the module is mechanically and electrically integrated directly into the system. Configuration is done via the provided software, where parameters such as baud rate, termination resistor, and others can be controlled through the DLL library or drivers.

Advantages in Operation

The combination of high temperature resistance, electrical isolation, and flexible configuration makes the CB-602I-T a robust solution for industrial communication tasks. The visual indication of communication activity via LEDs simplifies maintenance and fault diagnosis. Support by Windows drivers and sample code reduces development time for users integrating the module into their own systems. The stackability up to 8 boards enables a scalable system architecture that can adapt to growing requirements.