User's Manual

C O N T R O L M O D U L E

WWW.DAVIDCLARK.COM

Control Module Operation

1. Fail Safe - If batteries are dead or the unit is turned off, microphone

and earphones will function when connected to aircraft intercom.

2. The DC ONE-X headset is shipped with the Auto Shutoff feature OFF.

In this mode, the Hybrid ENC will function whenever the power is ON.

3. When Auto Shutoff is set to ON, unit will turn off automatically after 5

minutes when:

•Intercom/audiopanelturnedoff

•Notconnectedtointercom/audiopanel

•Notinaphonecall

4. Auto shutoff can be turned ON/OFF via a small switch located under

the batteries (see Quick Start diagram page 8).

5. Cell Phone Interface

 •UseoftheBluetooth

wireless technology cell phone feature while

plugged into aircraft intercom is not recommended and may violate

applicable regulations

 •Allintercompartieshearcellphoneoutboundaudiobutcellphone

recipient’s voice is heard only by the headset connected/paired to the

cell phone

 •Sidetoneisalwayspresent.

 •BrieypressingtheBluetooth

wireless technology button will answer

or terminate a call (if supported by the cell phone)

 •Cellphonereceiveaudioisnotmutedwhenreceivingatransmissionfrom

ATC or intercom

H Y B R I D E N C T E C H N O L O G Y