IEC TS 63334-2021 pdf free download – Fibre optic interconnecting devices and passive components – Conditions for testing the protection against dust and water ingress of passive optical protective housings and hardened fibre optic connectors (IP5X, IPX4, IPX5, IPX6).
The optical performance measurement of the connection with connector plug B, adaptor 1 andconnector plug A shall be performed in accordance with lEC 61300-3-4 andior IEC 61300-3-6.
Connector plug B may be mated with connector plug A or C minimum three times as describedin 5.3 and 5.5 and, if necessary,two more times as described in 5.5. The total number ofmatings of connector plug B with connector plug A or C is maximum five.
5.4Conditioning
The DUT in the configuration as shown in Figure 1 shall be conditioned for the lP5X ratingdefined in lEC 60529.
5.5Visual and final optical performance check
After the dust conditioning, the outer surface of the DUT shall be cleaned carefully.
The cover of the DUT shall be carefully opened and the location and the accumulation of thedust inside the DUT shall be examined according to lEC 61300-3-1.
The reference optical performance measurement shall be done as described in 5.3.
The optical performance measurement of the connection with connector plug B, adaptor 1 andconnector plug A shall be performed in accordance with lEC 61300-3-4 and/or lEC 61300-3-6,as shown in Figure 4.
The connector plug B shall be removed from the adaptor 1, the ferrule end face inspected and,if necessary, cleaned.EC TR 62627-01 should be consulted for recommendations on cleaningmethods for connectors.
Afterwards, the dust cap D shall be removed from adaptor 2.The ferrule end face of connectorplug C shall be inspected and if necessary cleaned.Connector plug B shall be plugged inadaptor 2, as shown in Figure 3. The optical performance measurement of the connection withconnector plug B, adaptor 2 and connector plug C shall be performed in accordance withIEC 61300-3-4 and/or lEC 61300-3-6. If a connection fails the requirements, then two additionalinspections, cleaning attempts and optical performance measurements may be performed. In acleaning attempt,one or more cleaning process steps may be included depending on theeffective cleaning method.IEC TR 62627-01 should be consulted for recommendations oncleaning methods for connectors.
5.6Requirements
The optical performance of the connection B-1-A shall meet the specification (e.g. attenuationand return loss grade) and the one of the connection B-2-C shall meet the specification (e.g.attenuation and return loss grade) after maximum 3 cleaning attempts of each ferrule end face.
The definition of the optical performance specifications should take into account that twoconnections (3 and B-1-A/B-2-C) and optical cable attenuation are measured when using thereference measurement and optical performance measurement method of the DUT as describedabove.
NOTE 1 Example of a suitable attenuation specification: lf a maximum attenuation of 0,3 dB is specified forconnection 3 (connection to light source) and a maximum attenuation of 0,5 dB for connection B-1-A/B-2-C(connections within the housing), then the total attenuation specification is 0,8 dB for pass/fail evaluation.
NOTE2 Example of the pass/fail evaluation: If the total attenuation of the connections 3 and B-2-C of 1,1 dB ismeasured and the total maximum attenuation of 0,8 dB for connections 3 and B-2-C is specified , then the ferrule endface of connector plugs B and C can be cleaned. if after the second cleaning attempt, the measured attenuation is0,65 dB, then the DuT passes the requirement of maximum 0,8 dB.
5.7Details to be specified and reported
The following details, as applicable, shall be specified in the relevant specification and reportedin the test report:
a) type and configuration of DUT including optical fibre and cable type;
b) allowed optical performance (e.g. attenuation and return loss grade) of connection 3 and B-1-AB-2-C after conditioning with dust;IEC TS 63334 pdf download.