ABB REC650 - Page 68

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 12.47...15.37 psi (86...106 kPa)
Altitude up to 6561.66 feet (2000 m)
Transport and storage temperature range -40...+85ºC
Bay control REC650 ANSI 1MRK 511 265-BUS B
Product version: 1.2
68 ABB