This part of IEC 60876 applies to fibre optic switches possessing all of the following general features: ?C they are passive in that they contain no optoelectronic or other transducing elements; ?C 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; ?C the ports are optical fibres or fibre optic connectors.
IEC 60876-1:2012 history
2014IEC 60876-1:2014 Fibre optic interconnecting devices and passive components - Fibre optic spatial switches - Part 1: Generic specification
2012IEC 60876-1:2012 Fibre optic interconnecting devices and passive components - Fibre optic spatial switches - Part 1: Generic specification