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This part of IEC 60950 applies to information technology equipment intended to supply and receive operating power via a TELECOMMUNICATION NETWORK, where the voltage exceeds the limits for TNV CIRCUITS. This Part 21 of IEC 60950 is intended to be used with IEC 60950-1.
 

Amendments, rulings, supplements, and errata

  1. IEC 60950-21 Ed. 1.0 b COR. 1:2003

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    Corrigendum 1 - Information technology equipment - Safety - Part 21: Remote power feeding