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Plug-In Modules
4.2 Communication Modules
devices. One possible application is the transmission of differential protection data. For example, if you wish
to transmit only binary data and measured values, you can equip all SIPROTEC devices with these protection
interfaces.
The attainable distance in multimode optical fibers is limited by 2 factors.
•
Bandwidth length product
Typical for 62.5 μm/125 μm optical fibers: 400 MHz x km to 800 MHz x km
Typical for 50 μm/125 μm optical fibers: 400 MHz x km to 1200 MHz x km
•
Fiber attenuation
The typical attenuation of a 62.5 μm/125 μm optical fiber is from 0.9 dB/km to 1 dB/km for light with the
wavelength λ = 1300 nm. 1.5 dB/km are added for splices, aging and as a reserve. An attenuation of
2.5 dB/km is used for calculation of the distance.
4.2.4.2
USART-AF-1LDFO
Description
Product code
Figure
Connector type
Wavelength
Baud rate
Protocol
Max. distance
Distance 4 km
Laser class 1 as per EN 60825-1/-2
Transmitter power coupled in
multimode optical fiber
Receiver sensitivity
Optical budget
Distance 24 km
Laser class 1 as per EN 60825-1/-2
Transmitter power coupled in
singlemode optical fiber
Receiver sensitivity
Optical budget
164
Protection-interface module for synchronous operation with an optical
interface
P1Z758
1 x duplex LC
λ = 1300 nm
2 Mbit/s for the protection-interface communication
Protection-interface communication
24 km for singlemode optical fibers or
4 km with multimode optical fiber
With the use of 62.5 μm/125 μm and 50 μm/125 μm optical fibers
Minimum
-15.0 dBm
avg
-8.0 dBm
avg
16.0 dB
With the use of 9 μm/125 μm optical fibers
Minimum
-15.0 dBm
avg
-8.0 dBm
avg
16.0 dB
Maximum
-8.0 dBm
avg
-31.0 dBm
avg
–
Maximum
-8.0 dBm
avg
-31.0 dBm
avg
–
SIPROTEC 5, Hardware Description, Manual
C53000-G5040-C002-J, Edition 08.2020
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