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Cables & ConneCtors
s Fig. 3 BMZ male and female interfaces.
to the internal and external o-ring seals discussed earlier, but
with an additional proprietary mechanism that allows the
connector to be fully sealed against the panel while permit-ting radial and axial float to the levels previously defined.
The SFB connector was designed to be compliant with
the International Standard for Ingress Protection per IEC
60529. This standard requires the connector to withstand
ingress of foreign materials (solid particles) and the harmful
effects of water.
SV’s target IP requirement for the first iteration of the
SFB is IP56. The first digit in IP56 ( 5) determines the ability of the interconnect (when sealed to an enclosure) to
withstand the harmful effects of solid object ingress. Level
5 is the protection level at which the connector is guaranteed to seal against dust such that dust shall not penetrate
in a quantity that interferes with satisfactory operation of
the connector. This standard applies to the enclosure both
in a static un-mated condition and in a dynamic field operation environment.
The second digit in the IP56 rating ( 6) defines the ability of the interconnect to protect against the harmful effects
of powerful water jets projected against the enclosure from
any direction. This product is also compliant to this specification in static and dynamic environments. This specification is designed to simulate the exposure of the interconnect to marine and intensely humid and wet environments.
SAMPLE APPLICATION OF THE SFB CONNECTOR
The initial design of the SFB connector consisted of a
multiport block incorporating three connector lines. The
footprint of this block was designed to minimize the center-to-center spacing of the connectors and the overall dimensions of the multiport block. Schematics of the male and
female 3 port block are shown below in Figures 4 and
The female multiport block consists of a panel mounted bracket sealed against the panel by a silicon o-ring and