1 Scope
This part of IEC 60876 applies to fibre optic switches possessing all of the following general features:
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– they are passive in that they contain no optoelectronic or other transducing elements;
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– they have one or more ports for the transmission of optical power and two or more states in which power may be routed or blocked between these ports;
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– the ports are optical fibres or fibre optic connectors.