Transmission speed
The transmission speed of the optical Fast Ethernet ports is 100 Mbps.
Transmission technique
The transmission mode for 100Base-FX is specified in the IEEE 802.3 standard.
5.6.3
SFP interface for application on rail vehicles
5.6.3.1
Overview
If you use the SCALANCE X204RNA EEC in the context of the railway approval EN50155, use the
following plug-in transceivers with coated printed circuit boards (conformal coating).
Component
Article number
SFP991-1(C)
6GK5 991-1AD00-8FA0
SFP991-1LD(C)
6GK5 991-1AF00-8FA0
SFP992-1LD(C)
6GK5 992-1AM00-8FA0
Note
The SFP modules do not ship with the product and must be ordered separately, if needed.
5.6.3.2
SFP991-1(C)
Properties
Transmission mode
100Base-FX complying with IEEE 802.3
Transmission rate
100 Mbps (Fast Ethernet)
Transmission medium
Multimode fiber-optic cable
Light source
LED/Class1-LASER "Eye safe"
Wavelength
1300 nm
Cable length (max.) *
)
At 50 µm fiber core diameter
3 km
At 62.5 µm fiber core diameter
3 km
Transmitter output (optical)
Minimum
At 50 μm
-24 dBm
At 62.5 μm
-20 dBm
Maximum
-14 dBm
Receiver input
Sensitivity min.
-31 dBm
Input power max.
-12 dBm
Device description
5.6 SCALANCE X204RNA EEC interfaces
SCALANCE X-200RNA
Operating Instructions, 04/2022, C79000-G8976-C342-07
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