Fibre optic interconnecting devices and passive components performance standard - Part 111-9: Sealed closures for category S - Subterranean (IEC 61753-111-9:2009); German version EN 61753-111-9:2010— 28 стр.
Fibre optic interconnecting devices and passive components performance standard - Part 1: General and guidance for performance standards (IEC 61753-1:2007); German version EN 61753-1:2007— 42 стр.
