Clear-Com HME DX300ES - Manual (Page 25)

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Operating Mode Setup
Set up beltpacs and/or all-in-one headsets to operate in the desired mode by
pressing and holding the button combinations shown below when you press
the PWR (power) button to turn the unit on.
Mode Button Combination Button Functions
(default) Hold X + O + ALL and press PWR
X = X-channel only
O = O-channel only
ALL = both X and O channels
O-channel only Hold O and press PWR
X & O both = O-channel
ALL has no function
O-channel + ALL Hold O + ALL and press PWR
X & O both = O-channel
ALL = both X and O channels
X-channel only Hold X and press PWR
X & O both = X-channel
ALL has no function
X-channel + ALL Hold X + ALL and press PWR
X & O both = X-channel
ALL = both X and O channels
O-channel + X-channel only Hold X + O and press PWR
X = X-channel only
O = O-channel only
ALL has no function
Latching
(Hands-Free, Full-Duplex)
Hold ALL + ▲ and press PWR
X & O will latch on when pressed and
released, for a normal two-way
conversation
Push-To-Talk (PTT) Hold ALL + ▼ and press PWR
X, O & ALL must be pressed and held
while you talk, and released to listen
NOTE: Mode settings will be stored, so your beltpacs and/or all-in-one headsets will have
the same mode settings after you turn them off and back on.
NOTE: ALL does not latch on, and must be held down to hear both O and X.