väyläkaapelointiin

Väyläkaapelointi, or bus cabling, refers to a network topology where multiple devices are connected to a single shared communication line, known as the bus. Data is transmitted in both directions along this bus. In a bus network, each device has a unique address. When a device needs to send data, it broadcasts the data onto the bus along with the destination address. All devices on the bus receive the data, but only the device with the matching address processes it.

This topology was historically common in local area networks (LANs), particularly with technologies like Ethernet using coaxial cable. It offered a relatively simple and cost-effective solution for connecting a moderate number of devices. However, bus cabling has several drawbacks. A break or fault anywhere along the bus can disrupt communication for all connected devices. Collisions, where multiple devices attempt to transmit data simultaneously, can also occur, requiring mechanisms like CSMA/CD (Carrier Sense Multiple Access with Collision Detection) to manage them.

Due to these limitations, bus cabling has largely been superseded by more robust and efficient topologies like star or switched Ethernet, which offer better performance, reliability, and scalability. While not prevalent in modern LANs, the principles of shared communication lines are still found in some industrial control systems and other specialized applications where simplicity and cost are paramount. The term "väylä" itself, meaning channel or bus, is broadly applicable in many technological contexts.