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MS-Connect 210 User’s Manual A-7

Appendices

Appendix D — Star Network Topology

A star network is a local area network (LAN) that directly connects multiple workstations,

or nodes, to a central computer. All workstations on the network are indirectly connected

to each other through the central computer.

Star networks allow multiple workstations to communicate from scattered locations

throughout a large physical area. The illustration below shows a simplified model of a star

topology. The large center sphere represents the central computer, and the five smaller

spheres represent workstations on the network. The straight lines represent cabling.

One of the main advantages of the star network topology commonly used in EtherNet/IP is

that a cable failure isolates a single workstation instead of affecting the entire network. In

addition, the isolation of a single node makes the diagnostic process relatively simple.

workstations

central computer

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