Scalance X106-1 Fo Port - Siemens SIMATIC NET SCALANCE X-100 Series Operating Instructions Manual

Industrial ethernet

Hide thumbs

Table Of Contents

Table of Contents

Autonegotiation

Autonegotiation means the automatic detection of the functionality of the port at the opposite

end. Using autonegotiation, repeaters or end devices can detect the functionality available at

the port of a partner device allowing automatic configuration of different types of device. With

autonegotiation, two components connected to a link segment can exchange parameters

and set themselves to match the supported communication functionality.

Note

Devices not supporting autonegotiation must be set to 100 Mbps half duplex or 10 Mbps half

duplex.

Note

The SCALANCE X106-1 is a plug-and-play device that does not require settings to be made

for commissioning.

Auto polarity exchange

If the pair of receiving cables are incorrectly connected (RD+ and RD- swapped over), the

polarity is adapted automatically.

MDI /MDIX autocrossover function

The advantage of the MDI /MDIX autocrossover function is that straight-through cables can

be used throughout and crossover Ethernet cables are unnecessary. This prevents

malfunctions resulting from mismatching send and receive wires. This makes installation

much easier for the user.

The devices of the SCALANCE X-100 product line all support the MDI / MDIX autocrossover

function.

NOTICE

Please note that the direct connection of two ports on the switch or accidental connection

over several switches causes an illegal loop. Such a loop can lead to network overload and

network failures.

3.5.3