System Description of SCALANCE X-400

2.2.21000Base-TX

Transmission Rate

The transmission rate of the electrical gigabit ports is 1 Gbps.

Transmission Mode

The transmission mode for 1000Base-TX is specified in the IEEE 802.3ab stan- dard.

At 1 Gbps, autonegotiation is optional.

Two communication modes are possible:

Half duplex

Full duplex

Transmission Medium

Data is transmitted over an 8-wire twisted pair cable.

Notice

For data transmission at 1 Gbps, at least Cat 5e twisted-pair cabling with 4x2 wires is required. With a four wire cable (2x2), the maximum possible data rate is 100 Mbps.

Transmission Range

The maximum transmission distance (segment length) is 100 m.

Connectors

The connectors used are 8-pin RJ-45 jacks.

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Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches

C79000-G8976-C186-03

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Siemens X-400 technical specifications 2 1000Base-TX, Transmission rate of the electrical gigabit ports is 1 Gbps