Scalance X101-1 Fo Port - Siemens SCALANCE X101-1 Commissioning Manual

Product Characteristics
4.2 SCALANCE X101-1
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.
4.2.5

SCALANCE X101-1 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 selected.
Transmission Medium
The data are transferred over multimode fiber-optic cable (FOC). The transceiver wavelength
is 1300 nm.
Multimode fiber-optic cables are used with a core diameter of 50 or 62.5 µm, the light source
is an LED.
The outer diameter of the FOC is 125 µm.
Range
The maximum transmission range (segment length) is 3 km if the signal attenuation of the
FOC is ≤ 1 dB/km at 1300 nm.
Connectors
The cables are connected to BFOC sockets.
Industrial Ethernet Media Converters SCALANCE X-100 Series
Commissioning Manual, 07/2008, A2B00051521A
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