ABB Relion REB500 Product Manual page 32

Distributed busbar protection REB500
Product version: 8.2
Table 15. IRIG-B interface
Type
Tension clamp terminal
Optical interface (X1010)
Table 16. IRIG-B
Type
Input impedance
Minimum input voltage HIGH
Maximum input voltage LOW
Table 17. Serial rear interface
Type
Serial port (X1009)
Table 18. Optical serial port (X1009)
Wavelength
820 nm
820 nm
1) Maximum allowed attenuation caused by fiber
Influencing factors
Table 19. Environmental conditions
Description
Operating temperature range
Short-time service temperature range
Relative humidity
Atmospheric pressure
Altitude
Transport and storage temperature range
32
Protocol
IRIG-B
IRIG-B
Value
430 Ohm
4.3 V
0.8 V
Counter connector
Optical serial port, type ST for IEC 60870-5-103 serial
Fiber type
MM 62,5/125 µm glass fiber
core
MM 50/125 µm glass
fiber core
Value
-25...+55ºC (continuous)
-40...+70ºC (<16h)
Note: Degradation in MTBF and HMI performance
outside the temperature range of -25...+55ºC
5..95%, non-condensing
Up to 76 kPa
up to 2000 m
-40...+85ºC
1MRK 505 352-BEN
Issued: 2016-03-01
Cable
Shielded twisted pair cable
Recommended: CAT 5, Belden RS-485 (9841- 9844)
or Alpha Wire (Alpha 6222-6230)
MM 62,5/125 µm glass fiber core, ST connector
Accuracy
—
—
—
Connector
Permitted path attenuation
ST 6.8 dB (approx. 1700m length with 4
dB / km fiber attenuation)
ST 2.4 dB (approx. 600m length with 4 dB
/ km fiber attenuation)
Revision: -
1)
ABB