Sennheiser HMEC 460 Instructions For Use Manual page 13

ACX-1 ACX-2
ACX-11 ACX-22
Connecting the headset to the on-board DC power supply system
To power the NoiseGard electronics, you can connect the headset to the on-board DC
power supply system (12–35 V
Have a 3-pole XLR socket (optional accessories) be mounted by a technician qualified
to perform this type of installation.
Connect the XLR-3 plug
Connecting the headset to a cigarette lighter socket (12–35 V
Sennheiser offers special adapter cables with XLR-3 socket for connecting the NoiseGard
electronics of the headset to the on-board DC 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
).
DC
to the 3-pole XLR socket.
) via an adapter cable
DC
11