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EIA/TIA 568A & 568B Standard PowerPoint Presentation
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EIA/TIA 568A & 568B Standard - PowerPoint PPT Presentation


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EIA/TIA 568A & 568B Standard. The cable color scheme used at ioNET is the 568B standard on each end of a straight-through 10/100BaseT cable. If a crossover cable is needed, use the 568A standard on one end and 568B on the other end. If you don't know when to use a crossover cable, next slide.

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PowerPoint Slideshow about 'EIA/TIA 568A & 568B Standard' - francesca-sereno


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EIA/TIA 568A & 568B Standard

The cable color scheme used at ioNET is the 568B standard on each end of a straight-through 10/100BaseT cable. If a crossover cable is needed, use the 568A standard on one end and 568B on the other end.

If you don't know when to use a crossover cable, next slide

slide2

10BASE-T Crossover Wiring

When connecting two twisted-pair MAUs together over a segment, the transmit data pins of one eight-pin connector must be wired to the receive data pins of the other, and vice versa. The crossover wiring may be accomplished in two ways: with a special cable or inside the hub.

For a single segment connecting only two computers you can provide the signal crossover by building a special crossover cable, with the transmit pins on the eight-pin plug at one end of the cable wired to the receive data pins on the eight-pin plug at the other end of the crossover cable and vice versa.

FIGURE 5.2 10BASE-T crossover cable

However, when you are wiring multiple segments in a building it's much easier to wire the cable connectors "straight through," and not worry about whether the wires in the jumper cables or other twisted-pair cables in your building have been correctly crossed over. The way to accomplish this is to do all the crossover wiring at one point in the system: inside the multiport hub.

The standard recommends that the signal crossover be done internally in each hub port. If the crossover function is done inside a hub port, then the standard notes that the port should be marked with an "X."