token ring cables

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 Question by CArl Smith posted 15 Feb 2001
 token ring cables
The RI and RO cable, are they crossover or special patch cords? Where can I get more information
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 Answer by Dmitri Abaimov posted 19 Feb 2001
Dear Carl,

The RI and RO ports of a MAU are connected with the same type of cable called MIC-to-MIC. MIC stands for Media Interface Connector and MAU stands for Multistation Access Unit.

The MAU here acts pretty much like a hub, so the cross over between transmit and receive pairs is done inside the box. Thus the cord itsef can be assumed as straight-through.

The Token Ring crossover is needed in such rare situations when the whole ring (network) consists of only two devices. Using the crossover the need for MAU box is eliminated. The Token Ring crossover is described better at one of our other pages: http://www.cabling-design.com/references/pinouts/token_ring_crossover.shtml

Sincerely,
Dmitri Abaimov, RCDD

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