CAN Termination T-Connectors

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CAN bus three-way connector 

CAN T Connector 

Termination and T-Connectors

CAN Termination T-Connectors

CAN Wiring for the Industrial Environment

When connecting the CAN node to the main bus, a tee and stub cable are required. Both ends of the CAN network must be terminated with 120 Ω. For external terminals, several terminal plugs for CAN_GND are available with or without ground contact. The pin assignment of the DSUB connector conforms to CiA 106.

Suitable for the use in CAN buses

CAN bus communication protocol

CAN communication protocol specifies 4 different frame formats, namely data frame, remote frame, error frame and overload frame.

Communication coordination is based on the following basic rules: bus access, arbitration, encoding/decoding, error labeling, and overrun labeling. CAN follows the OSI model.

According to the OSI benchmark model, there are only three layers: the physical layer, the data link layer and the notification layer, but the application layer still needs to be defined by the user.

As a serial communication network that effectively supports distributed control or real-time control, CAN bus has applications ranging from high-speed networks to low-cost multi-line networks. For example, the bit rate of CAN in applications such as engine control components, ABS, and anti-skid systems in automobiles can be as high as 1Mbps.

At the same time, it can be inexpensively used in vehicle electrical systems, such as electrical windows, light beams, seat adjustments, etc., to replace the required hardware connections. The transmission medium is twisted pair, the communication rate can reach up to 1Mbps/40m, the direct transmission distance can reach up to 10km/5kbps, and the number of connected devices can reach up to 110.

CAN is a multi-master working mode with flexible communication mode, without node information such as station address, and adopts non-destructive bus arbitration technology to meet real-time requirements. In addition, CAN adopts short frame structure to transmit signals, with short transmission time and strong anti-interference ability.

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