Page History

Can Bus:

• Twisted Pair with

...

• a 120 Ohm resistor to

...

• terminate. It stabilizes the voltage and

...

• lessens external noise.

DeviceNet:

• Has a set standard, three types of cables: Thick Round Cable, Thin Round Cable and Flat Cable
• There is

...

• standard for

...

• how long each branch from the main cable can be and how long they can be combined, this is drop length and cumulative drop length
• Connectors used are screw, mini and micro connector

Source: https://www.odva.org/wp-content/uploads/2021/05/PUB00026R5_Tech-Series-DeviceNet.pdf

The predominant choice for the physical layer of CAN bus and CAN Open communication involves employing twisted-pair copper cables with a shared ground. In this setup, a pivotal component is the inclusion of a 120 Ohm resistor positioned between each cable, serving to enhance voltage stability and mitigate the impact of external noise.

It's worth noting that the realm of CAN Bus lacks a universally accepted standard. Instead, each enterprise adopts its unique internal standardization approach, fostering adaptability and tailoring to specific requirements.