Power supply for
NoiseGard™
Ground
Do not connect!
1. Connecting the headset to the on-board system
The NoiseGard™ electronics can be connected to
Danger of short circuit!
Before turning on NoiseGard™, ensure that the
The HMEC 300, HMEC
HMEC 300 and HMEC 400 headsets:
Connect the 1/4” (6.35 mm) stereo jack plug for the headphones and the
Connect the