![]() ![]() The IEEE-specified Gigabit crossover is generally seen as unnecessary.Ĭertain equipment or installations, including those in which phone and/or power are mixed with data in the same cable, may require that the "non-data" pairs 1 and 4 (pins 4, 5, 7 and 8) remain un-crossed. However, it also applies to connecting the WIC with the lavender crossover cable with the blue stripe. These steps describe how to connect the WIC with the help of the standard lavender RJ-11 cable. In either case, T568A or T568B, a normal (un-crossed) cable will have both ends wired according to the layout in the Connection 1 column.Īlthough the Gigabit crossover is defined in the Gigabit Ethernet standard, in practice all Gigabit PHYs feature an auto-MDIX capability and are designed for compatibility with the existing 100BASE-TX crossovers. The crossover cable can be ordered as a spare part. What this means is that one manufacturer's cables are wired one way and another's the other way, yet both are correct and will work. Typical commercially available "pre-wired" cables can follow either format depending the manufacturer. In practice, it does not matter if non-crossover Ethernet cables are wired as T568A or T568B, just so long as both ends follow the same wiring format. ![]()
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