Distance 40 km
Laser class 1 as per EN 60825-1/-2 With the use of 9 μm/125 μm optical fibers
Minimum Maximum
Transmitter power coupled in
singlemode optical fibers
-8.0 dBm
avg
-3.0 dBm
avg
Receiver sensitivity -3.0 dBm
avg
-33.0 dBm
avg
Optical budget 25.0 dB –
USART-AK-1LDFO
Description Protection-interface module for synchronous operation with an optical
interface
Product code P1Z888
Figure
Connector type 1 x duplex LC
Wavelength λ = 1550 nm
Baud rate 2 Mbit/s for the protection-interface communication
Protocol Protection-interface communication
Max. line length 100 km for singlemode optical fibers
Distance 100 km
Laser class 1 as per EN 60825-1/-2 With the use of 9 μm/125 μm optical fibers
Minimum Maximum
Transmitter power coupled in the
singlemode optical fiber
-5.0 dBm
avg
-0.0 dBm
avg
Receiver sensitivity -10.0 dBm
avg
-34.0 dBm
avg
Optical budget 29.0 dB –
[dw_attenuator, 2, en_US]
Figure 4-7 Optical Remote Connection with Attenuators
NOTE
If you use the protection-interface module USART-AK-1LDFO for distances under 30 km, then connect
2 attenuators 7XV5107-0AA00. To continue using the duplex LC plugs, attach both attenuators to one end
of the remote connection (see Figure 4-7).
4.2.4.6
Plug-In Modules
4.2 Communication Modules
SIPROTEC 5, Hardware Description, Manual 169
C53000-G5040-C002-M, Edition 12.2021