ITU-T K.147 PDF

This Recommendation describes overvoltages and overcurrents protection of information technology equipment with digital port including Ethernet port regarding the testing found in [ITU-T K.20], [ITU-T K.21], [ITU-T K.44], [ITU-T K.45] and [ITU-T K.117]. Topics covered are:

• overvoltage and overcurrent events coupling into the network system depending on

– implementation condition,

– system configuration,

– powering condition (data only or provision of network powering) and

– link insulation;

• lightning surge resistibility test circuit approaches;

• power fault resistibility test circuit approaches;

• resistibility test circuit applicability to [ITU-T K.20], [ITU-T K.21], [ITU-T K.44], [ITU-T K.45] and [ITU-T K.117].