1 September 2011
Figure 23. EPXA and EPXB 1 Plug and Receptacle Polarization Tool
25. EPXA and EPXB Shell Size 1 Keying Installation
26. EPXB SHELL SIZE 2 KEYING. EPXB Shell Size
2 uses a removable jackscrew and jacknut keying system
to prevent cross-mating of connectors. Jackscrew and
a. Install the keying post or polarization key by
jacknut can be mounted either on the plug or the
aligning with the correct key position facing out (away
receptacle shell; however, the standard is to have the
from the connector) see Figure 22. When properly
jackscrew on the plug shell and the jacknut on the
aligned push straight in till properly seated.
receptacle (Figure 26). There are 2 sets of jackscrew and
jacknut. Each set provides 6 polarizing positions. The
b. Remove the keying post or polarization key by
first set provids polarizing positions A, B, C, D, E, F.
using polarization tool (Figure 23 or equivalent).
The second set provides polarizing positions N, R, W, X,
Y, Z. The difference between the 2 sets is a 30° offset
(1) Slide the end of the 282668001 tool (or
applied to the polarizing peg on the Jacknut and to the
polarizing slot on the jackscrew.
or key (Figure 24).
(2) Then push on both sides of the tool to
same time, push the polarization post or key towards the
connector mating face (Figure 25).
unlocked. Use the 282668001 tool to take it out from the
Figure 24. EPXA and EPXB 1 Inserting Polarization
Figure 25. EPXA and EPXB 1 Removing Polarization