Hello Group, does anybody aware of any standard or requirement for DC power port surges for indoor ( central office ) applications? I know EN 55024 (IEC 61000-4-5) specify surge tests for DC ports that may connect to outside lines. It could be in Europe (-48V or -60V) or North America; ETSI, EN , BellCore: anything goes. Thanks in advance, Mark Gandler Ciena
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