18.7 Data communication interfacesTable 468:Ethernet interfacesEthernet interface Protocol Cable Data transfer rateLAN/HMI port (X0)1) - CAT 6 S/FTP or better 100 MBits/sLAN1 (X1) TCP/IP protocol Fibre-optic cable withLC connector100 MBits/s1) Only available for the external HMI option.Table 469:Fibre-optic communication linkWave length Fibre type Connector Permitted pathattenuation1)Distance1300 nm MM 62.5/125μm glass fibrecoreLC <8 dB 2 km1) Maximum allowed attenuation caused by connectors and cable togetherTable 470:X4/IRIG-B interfaceType Protocol CableScrew terminal, pinrow headerIRIG-B Shielded twisted pair cableRecommended: CAT 5, Belden RS-485 (9841-9844) or Alpha Wire (Alpha 6222-6230)Table 471:Serial rear interfaceType Counter connectorSerial port (X9) Optical serial port, type ST for IEC 60870-5-10318.8 Enclosure classTable 472:Degree of protection of flush-mounted IEDDescription ValueFront side IP 40Rear side, connection terminals IP 20Table 473:Degree of protection of the LHMIDescription ValueFront and side IP 42Section 18 1MRK 502 034-UEN -Technical data552Technical Manual
