8. POTTING BOOTS AND RINGS. Potting boots are
plastic molds held in place by a threaded potting ring.
They are used together to form a neat potting seal when
used with potting or sealing compound (Figure 3).
9. SHRINK BOOTS AND ADAPTERS. Shrink boots
are heat shrinkable insulation sleeving used to insulate
and seal the connector. These boots are procured by
the recovered or shrunk diameter. The adapter is a
threaded coupling which attaches to the connector to
which the shrink boot seals (Figure 4).
10. NON-ENVIRONMENTAL BACKSHELL. The non-
environmental backshell is used when moisture entry
protection is not required, but when the need for
additional space is required for maintenance (Figure 5).
11. ENVIRONMENTAL BACKSHELLS. The environ-
mental backshell is used when moisture entry protec-
tion is required. The protection is afforded by the use
of o-rings, extra grommets, and other sealing devices
12. EMI/RFI GROUNDING TERMINATORS. The
grounding terminators are a two piece unit used to
ground the shields or shield terminations to a common
point using a common ground lead (Figure 7).
Figure 3. Potting Ring and Boot (Typical)
13. NON-ENVIRONMENTAL EMI/RFI BACK-
SHELL. This type of backshell is used when moisture
entry protection is not required but the need for EMI/
RFI protection is needed (Figure 8).
14. ENVIRONMENTAL EMI/RFI BACKSHELL. This
type of backshell is used when moisture entry and
EMI/RFI protection is needed (Figure 9).
Electro Magnetic or Radio Frequency. The introduction
of foreign electronic energy into an electrical circuit
can be a significant problem.
16. EMI/RFI REDUCTION. The most common method
of reducing EMI/RFI is to employ a physical and
electrical shield which is terminated at one or both ends
to a ground potential or some other predetermined
point with respect to ground. Shields can be applied
to individual wires, cables, bundles, or harnesses.