Sennheiser NoiseGard HMDC 322 Instructions For Use Manual page 55

ACX -1 ACX-2
ACX -11 ACX-22
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3. Connecting the headset via a cigarette lighter adapter cable
(except HMEC 302, HMEC 305 and HMEC 306)
Sennheiser offers special adapter cables with XLR-3 socket for connecting the NoiseGard™
electronics of the HMEC 300, HMEC 305-C, HMEC 322, HMEC 400 and HMDC 322 headsets
to the on-board power supply via the cigarette lighter socket:
• ACX-1 adapter cable for powering one headset via the cigarette lighter socket
• ACX-2 adapter cable for powering two headsets via the cigarette lighter socket
The adapter cables are also available with a right-angled jack plug featuring a 7.5 A fuse
and a green LED operation indicator:
• ACX-11 adapter cable for powering one headset via the cigarette lighter socket
• ACX-22 adapter cable for powering two headsets via the cigarette lighter socket
Connecting the headset
Connect the XLR-3 plug of the headset connecting cable to the XLR-3 socket of the
adapter cable.
Connect the plug or right-angled jack plug of the adapter cable to the cigarette
lighter socket.