DIN EN 61753-031-3:2009-12
Отменен
Fibre optic interconnecting devices and passive components performance standard - Part 031-3: Non-connectorized single-mode 1xN and 2xN non-wavelength-selective branching devices (NWBD) for Category U - Uncontrolled environment (IEC 61753-031-3:2009); German version EN 61753-031-3:2009
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