IEC 61753-053-2 : 1ED 2014
IEC 61753-053-2 : 1ED 2014
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - PERFORMANCE STANDARD - PART 053-2: NON-CONNECTORIZED, SINGLE-MODE FIBRE, ELECTRICALLY CONTROLLED, VARIABLE OPTICAL ATTENUATOR FOR CATEGORY C - CONTROLLED ENVIRONMENTS
International Electrotechnical Committee