Cable Types

Because of the integrated switch functionality, the AC500 PROFINET® Communication Module and the S500 IO Devices are working with crossover and 1:1 cables.

A direct connection of two terminal devices is the simplest variant of an Ethernet network. In this case, a so-called crossover cable (also called crossconnect or crosslink cable) has to be used to connect the transmission lines of the first station to the reception lines of the second station. The following figure shows the wiring of a crossover cable.

Wiring of a crossover cable

For networks with more than two subscribers, hubs or switches have to be used additionally for distribution. These active devices already have the crossover functionality implemented which allows a direct connection of the terminal devices using 1:1 cables.

Wiring of a 1:1 cable

Caution

:strong:Risk of communication faults!

Malfunctions in communications may happen when using inappropriate cables.

Use only network cables of the categories 5 (Cat 5, Cat 5e, Cat 6 or Cat 7) or higher within PROFINET® networks.