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What Makes a Rugged, Reliable Transceiver?
 What does EMI, RFI, and ESD tested really mean?
SEL products were designed to operate in the harsh environment of power
utility substations and industrial applications. While all fiber transceivers
can claim that fiber cable is immune to the effects of electromagnetic
interference (EMI), radiated frequency immunity (RFI), and electrostatic
discharge (ESD) they can still be susceptible to
these phenomena and have to be designed to operate correctly under these
destructive conditions. All SEL transceivers have been designed and tested
to the following standards:
IEEE C37.90.2
Withstand Capability of Relay Systems to
Radiated Electromagnetic Interference From Transceivers. Compliance
level 35 V per meter.
IEC 60255-21-1 First Edition 1988
Vibration Endurance Class I
Vibration Response Class II
IEC 60255-21-2 First Edition 1988
- Shock and Bump Class II
- Shock Withstand Class II
- Shock Response Class II
IEC 60255-21-3 First Edition 1993
IEC 60068-2-2 Fourth Edition 1974
Dry Heat, 85°C
IEC 60068-2-30 Second Edition 1980
Damp Heat Cyclic,
55°C,
6 cycles
IEC 60068-2-1 Fifth Edition 1990
Cold, –40°C
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