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Product Characteristics
4.5 SCALANCE X101-1POF
Note
Devices not supporting autonegotiation must be set to 100 Mbps / half duplex.
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.
All media converters of the SCALANCE X-100 series support the MDI / MDIX autocrossover
function.
4.5.5
SCALANCE X101-1POF FO Port
Transmission Speed
The transmission rate of the optical Fast Ethernet port is 100 Mbps.
Transmission Mode
The transmission mode for 100Base-FX is specified in the IEEE 802.3 standard.
Since the full duplex mode and the transmission rate cannot be modified for optical
transmission, autonegotiation cannot be applied.
Transmission Medium
The data are transferred over plastic optical fiber cable (FOC). The wavelength is 650 nm.
Plastic optical fiber cables are used with a core diameter of 980 µm, the light source is an
LED.
The outer diameter of the FOC is 1000 µm.
Range
The maximum transmission range (segment length) is 50 m if the signal attenuation of the
FOC is ≤ 0.23 dB/m.
Connectors
The cables are connected to SC-RJ sockets.
Industrial Ethernet Media Converters SCALANCE X-100 Series
Commissioning Manual, 07/2008, A2B00051521A
4-41
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