(pm halo) helmet assembly - Gentex Corporation

Using Ear-To-Ear CableYou can use the ear-to-ear cable in one of the following ways: (1) with an oxygenmask that has its own communications cable, (2) with a down lead cable withswitch (06D12449-2) and a helmet microphone, or (3) with the same down leadcable and a 32" mask microphone cable. Do the following:1. To use the ear-to-ear cable with an oxygen mask that has its owncommunications cable (Figure 32):a. Don the helmet, adjust the nape strap, and fasten and adjust the chinstrap as described on Pages 7 and 8.b. Attach the mask by inserting the mask bayonets into the bayonetreceivers to the fourth locking position.c. Referring to Figure 32, connect the mask communications cable lead tothe ear-to-ear cable connector at the back of the helmet.(Continued on next page)Maskcommunicationscable leadEar-to-earcableBACK VIEWMaskcommunicationscable leadFigure 32. Using Helmet with Ear-to-Ear Cable18