19.7 Data communication interfaces
Table 544: Ethernet interfaces
Ethernet interface
Protocol Cable Data transfer rate
100BASE-TX - CAT 6 S/FTP or better 100 MBits/s
100BASE-FX TCP/IP protocol Fibre-optic cable with
LC connector
100 MBits/s
Table 545: Fibre-optic communication link
Wave length Fibre type Connector Permitted path
attenuation
1)
Distance
1300 nm MM 62.5/125
μm glass fibre
core
LC
<8 dB 2 km
1) Maximum allowed attenuation caused by connectors and cable together
Table 546: X8/IRIG-B and EIA-485 interface
Type
Protocol Cable
Tension clamp
connection
IRIG-B Shielded twisted pair cable
Recommended: CAT 5, Belden RS-485 (9841-
9844) or Alpha Wire (Alpha 6222-6230)
Tension clamp
connection
IEC 68070–5–103
DNP3.0
Shielded twisted pair cable
Recommended: DESCAFLEX RD-
H(ST)H-2x2x0.22mm
2
, Belden 9729, Belden
9829
Table 547: IRIG-B
Type
Value Accuracy
Input impedance 430 Ohm -
Minimum input voltage
HIGH
4.3 V -
Maximum input voltage
LOW
0.8 V -
Table 548: EIA-485 interface
Type
Value Conditions
Minimum differential
driver output voltage
1.5 V –
Maximum output
current
60 mA -
Minimum differential
receiver input voltage
0.2 V -
Table continues on next page
Section 19 1MRK 504 135-UEN A
Technical data
618
Technical manual
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