DIN IEC 61753-031-3 (2007-05)被替代
Fibre optic interconnecting devices and passive components performance standard Part 031-3: Non-connectorised single-mode 1?N and 2?N non-wavelength-selective branching devices for Category U - Uncontrolled environment (IEC 86B/2480/CD:2007)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻
