ABB REL650 Product Manual page 40

Line distance protection REL650 ANSI
Product version: 1.3
Table 11. IRIG-B
Type
Input impedance
Minimum input voltage HIGH
Maximum input voltage LOW
Table 12. EIA-485 interface
Type
Minimum differential driver output
voltage
Maximum output current
Minimum differential receiver input
voltage
Supported bit rates
Maximum number of 650 IEDs
supported on the same bus
Max. cable length
Table 13. Serial rear interface
Type
Serial port (X9)
Table 14. Optical serial port (X9)
Wave length
820 nm
820 nm
1) Maximum allowed attenuation caused by fibre
Influencing factors
40
Value
430 Ohm
4.3 V
0.8 V
Value
1.5 V
60 mA
0.2 V
300, 600, 1200, 2400, 4800, 9600,
19200, 38400, 57600, 115200
32
925 m (3000 ft)
Fibre type
MM 62,5/125 µm glass fibre
core
MM 50/125 µm glass fibre core
Accuracy
-
-
-
Conditions
–
-
-
-
-
Cable: AWG24 or better, stub lines shall be avoided
Counter connector
Optical serial port, type ST for IEC 60870-5-103 and DNP serial
Connector
Permitted path attenuation
ST 6.8 dB (approx. 1700m length with 4 db / km fibre attenuation)
ST 2.4 dB (approx. 600m length with 4 db / km fibre attenuation)
1MRK 506 337-BUS B
1)
ABB