What is the data transmission speed for Token Ring?

Token Ring is a networking protocol developed by IBM that operates in a token-passing mode. The standard data transmission speeds for Token Ring networks were primarily set at 4 Mbps and later at 16 Mbps. The most commonly referenced and original speed for early Token Ring networks is indeed 4 Mbps, which allowed for the establishment of a reliable and organized form of data transmission by limiting collisions through the use of a token.

The 4 Mbps speed was standardized for many Token Ring networks, making it the defining speed for this type of network before advancements led to the 16 Mbps variant. While 1 Mbps and 8 Mbps are not relevant speeds for Token Ring specifically, the 16 Mbps option, although higher, was an evolution of the original design rather than the core specification. As a result, selecting 4 Mbps captures the foundational technology effectively, as it represents the speed that most Token Ring configurations originally operated at.