Technical Data
306
7SS52 V4 Manual
C53000-G1176-C182-1
9.2.8 Serial Ports
Central unit PC port (front)
− Connection
electrical D-SUB 9-pole
− Baud rate 1200 to 115000 bauds
System port (rear) IEC 60870-5-103
– Connection
optical ST connectors
– Baud rate 1200 to 115000 bauds
System port (rear) IEC 61850, electrical with EN100
– Connection
electrical RJ45 connectors
– Baud rate up to 100 Mbaud
clock synchronization interface (rear)
– Connection
electrical D-SUB 9-pole
Service port (rear)
– Connection
optical ST connectors
electrical D-SUB 9-pole
– Baud rate 1200 to 115000 bauds
Bay unit PC port (front)
– Connection
electrical D-SUB 9-pole
(subminiature ISO 2110)
– Baud rate 1200 to 38400 bauds
Central/bay unit Interface for high-speed data
communication
– Connection ST connectors
– Fiber-optic cable glass fiber 62.5 / 125 µm
– Optical wavelength 820 nm
– Permissible cable attenuation max. 8 dB
– Transmission distance max. 1.5 km
1
1 Note: Determination of the maximum distance
− typ. reserve for ageing and temperature drift: 2 to 3 dB
− plug attenuation (ST): approx. 0.3 dB per plug
− FO attenuation coefficient α (glass fiber 62.5 / 125 µm): 3.5 dB / km
L
max
8 dB - reserve - cable attenuation
attenuation factor of FO cable
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