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7500 and 7600 Communication Port protection against Lightning strikes

Published date: 09 April 2019

Summary

The 7500 and 7600 meter COM ports have tested for lightning strike resistance.

Specification

The protection of all 7500 and 7600 communication ports (i.e. RS-232, RS-485, Ethernet, and MODEM) against nearby lightning strikes has been tested to meet or exceed IEC 61000-6-2 under a "Class 2 Fast" 1.2/50-microsecond Combination Wave (Test Level: +/- 1 kV).

More Information

The waveform is capacitively coupled to the signal lines using a metallic capacitive clamp. The clamp simulates a conduit that would typically surround communication cables. The surge waveform is applied directly to the capacitive clamp in order to simulate a nearby lightning strike hitting the cabling conduit. The standard that we test to is IEC 61000-6-2, which is called out by the requirements for CE marking.


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