7SR21 & 7SR22 Performance Specification
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© 2013 Siemens Protection Devices Limited
1.3.7 Fibre Optic Ethernet Data Communication Interface (IEC 61850 Option)
Attribute
Value
Physical layer
Fibre-optic
Connectors
Duplex LC 100BaseF in acc. With IEEE802.3
Recommended fibre
62.5/125
m
m glass fibre with Duplex-LC connector
Transmission Speed
100 MBits/s
Optical Wavelength
1300 nm
Bridgeable distance
2 km
1.3.8 Electrical Ethernet Data Communication Interface (IEC 61850 Option)
Attribute
Value
Physical layer
Electrical
Connectors
RJ45 100BaseF in acc. With IEEE802.3
Transmission Speed
100 MBits/s
Test Voltage (with regard to socket)
500 VAC 50 Hz
Bridgeable distance
20 m
1.3.9 Real Time Clock
1.3.9.1
Internal Clock
The specification below applies only while no external synchronisation signal (e.g. IRIG-B, IEC 60870-5-103) is
being received.
Attribute
Value
Accuracy (- 10
o
C to + 55
o
C)
±
100 ppm
1.3.9.2
IRIG-B (Inter Range Instrumentation Group)-B
Attribute
Value
Connector
BNC
Signal Type
IRIG-B 120, 122 or 123
Applied signal level
minimum 3 V, maximum 6 V, peak-to-peak
Signal : carrier ratio
3:1
Impedance
4 kOhm
*Cable impedance is irrelevant. The cable does not need to have a termination resistor fitted.
Summary of Contents for Argus 7SR21
Page 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
Page 2: ......
Page 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
Page 185: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 61 of 61 ...
Page 277: ...7SR220 Settings Guide Unrestricted Page 72 of 107 2013 Siemens Protection Devices Limited ...
Page 382: ...7SR220 Technical Manual Chapter 4 Page 2 of 96 2017 Siemens Protection Devices Limited ...
Page 386: ...7SR220 Technical Manual Chapter 4 Page 6 of 96 2017 Siemens Protection Devices Limited ...
Page 398: ...7SR220 Technical Manual Chapter 4 Page 18 of 96 2017 Siemens Protection Devices Limited ...
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