BS EN IEC 61754 is a series on fibre optic interconnecting devices and passive components. Fibre optic interconnecting devices and passive components is a fibre optic telecommunications technology for delivering broadband network access to end customers. BS EN IEC 61754-7-2 defines the standard interface dimensions for the type MPO family of connectors with two rows of fibres.
BS EN IEC 61754-7-2 on fibre optic interconnecting devices and passive components is useful for:
Fibre optic interconnecting devices and passive components architecture implements a point-to-multipoint topology in which a single optical fibre serves multiple endpoints by using unpowered (passive) fibre optic splitters to divide the fibre bandwidth among the endpoints. BS EN IEC 61754-7-2 discusses specifications on dimensions for the type MPO family of connectors with two rows of fibres. The parent connector for the type MPO connector family is a multiway plug connector characterized by a rectangular ferrule normally 6,4 mm × 2,5 mm which utilizes two pins of 0,7 mm diameter as its alignment. The variant in BS EN IEC 61754-7-2 provides a joint of 16 to 24 fibres by arraying them between two pin-positioning holes in the ferrule in a two-layer (two-row) arrangement. The connector includes a push-pull coupling mechanism and a ferrule spring-loaded in the direction of the optical axis. The connector has a single male key which is used to orient and limit the relative position between the connector and the component to which it is mated.
Connector interfaces are configured using a female plug without pins, a male plug with pins fixed and an adaptor as shown in BS EN IEC 61754-7-2. The female plug is intermateable with the male plug. There are two angled-interface plugs, one called down-angled and the other up-angled. They are defined for both male and female plugs. The up and down descriptors refer to the tilt direction of the ferrule’s angled end face relative to the fibre axis when looking toward the end face with the plug’s key feature on the top. For down-angled plugs, the angled surface faces slightly downward. For up-angled plugs, the angled surface faces slightly upward. These different angles affect interpretability for the two adaptor types. An opposed keyway adaptor mates two plugs with the keys in opposite orientations, for example, one side keyway-up and the other keyway-down. In contrast, an aligned keyway adaptor mates two plugs with the keys in the same orientation. When using an opposed keyway adaptor with angled interfaces, two down-angled plugs or two up-angled plugs is connected. For aligned keyway adaptors with angled interfaces, one down-angled plug and one up-angled plug is connected. Moreover, connector interfaces between the female plug and the male plug are configured by applying a backplane housing and a printed board housing instead of the adaptor. Additionally, the female plug interface is intermateable with the active device receptacle. Using BS EN IEC 61754-7-2 you can define the standard interface dimensions for the type MPO family of connectors with two rows of fibres.
IEC 61754-7-2:2017
EN IEC 61754-7-2:2018