Table 14. Optical serial port (X9)
Wave length Fibre type Connector
Permitted path attenuation
1)
820 nm MM 62,5/125 µm
glass fibre core
ST 6.8 dB (approx. 1700m length with 4 db / km
fibre attenuation)
820 nm MM 50/125 µm glass
fibre core
ST 2.4 dB (approx. 600m length with 4 db / km
fibre attenuation)
1) Maximum allowed attenuation caused by fibre
Influencing factors
Table 15. Degree of protection of rack-mounted IED
Description Value
Front side IP 40
Rear side, connection terminals IP 20
Table 16. Degree of protection of the LHMI
Description Value
Front and side IP40
Table 17. Environmental conditions
Description
Value
Operating temperature range -25...+55ºC (continuous)
Short-time service temperature range -40...+70ºC (<16h)
Note: Degradation in MTBF and HMI performance
outside the temperature range of -25...+55ºC
Relative humidity <93%, non-condensing
Atmospheric pressure 86...106 kPa
Altitude up to 2000 m
Transport and storage temperature range -40...+85ºC
Breaker protection REQ650 1MRK 505 283-BEN -
Product version: 1.2
ABB 57
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