Change 3 5-5
4. Place the slot of the tap connector over the black communication wire. The hole on the
other side of the tap connector must be opposite the metal tip that is in the earphone
5. Trim CEP wire and place into tap connector hole.
6. Ensure the length of wire from the tap connector to the metal tip is not less than 1/8 inch
(plus 1/16, minus zero inch).
Do not use needle nose pliers to compress tap connectors. Tap connectors must be
evenly compressed to secure wires.
7. While holding the wires in place, crimp the tap connector by pressing on the opposite, flat
sides with common pliers until the green top is inside the clear bottom.
8. Repeat steps 1-7 for the white wire.
The receiver is not polarized. In step 5-7.a.9, the white and black leads can be
attached to the receiver either way.
9. Using a jewelers screwdriver, re-attach the wires to earphone receiver.
10. Carefully pull the excess wire from the communication signal wire back through the
11. Pull the excess CEP interface-cable assembly wire back through respective grommet. Do
not pull beyond the point where the wire marker touches the grommet inside the earcup.
Do not position the tap connectors between the earphone element and earcup wall,
doing so could affect lateral impact protection.
12. Replace the backing foam, earphone receiver, and the earphone retaining foam into the
13. Position the earcup in the retaining harness at its original position for the user.
14. Connect CEP with foam earplug tips attached to mating connector located on the helmet
shell. (See Army MWO 1-8415-216-20-1, Figure 13).
Communication test set such as DMH-1 standard range output readings for CEP installed
in helmet are microphone 4.00-7.00 and headset 7.00-12.00.
15. Perform a communication check of the CEP system.