3M PELTOR LiteCom Plus MT7H7 4410-EU Series, Manual

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5.3.3 Automatic power off
The headset is switched off automatically when there is no activity (no button is pressed or no VOX transmission) for a
set time. This time can be adjusted here (maximum time is 8 hours) or this function could be disabled. Press the + button
(E:11) or – button (E:12) to adjust the automatic power off time. Each change is confirmed by a voice message.
5.3.4 External mode
The external mode can be configured for different types of equipment that are connected to the headset. You can switch
between external PTT mode, input source mode (e.g. FM/AM radio), phone mode (e.g. mobile phone, DECT phone), radio
mode (external communication radio). Each has different functions.
Press the + button (E:11) or – button (E:12) to select the function. Each change is confirmed by a voice message.
5.3.5 Microphone input (microphone type)
LiteCom Plus is supplied with a dynamic microphone (MT7) as standard. You can however use an electret microphone
(MT53) instead. The microphone setting can be changed here. It is also possible to switch off the microphone and just use
the headset for listening.
Press the + button (E:11) or – button (E:12) to select the required microphone. Each change is confirmed by a voice mes -
sage.
5.3.6 Microphone mute (to the external output)
When you use PTT transmission with the built in communication radio this prevents sound from the speech microphone
from being sent to the external output. This menu setting lets you switch this function on or off.
Press the + button (E:11) or – button (E:12) to switch this function on or off. Each change is confirmed by a voice message.
5.3.7 External jack level control
This function permits automatic level control for the incoming signal from external equipment. Press the + button (E:11) or
– button (E:12) to switch this function on or off. Each change is confirmed by a voice message.
5.3.8 Menu return
If the user does not press any button for 7 seconds the headset will return to the first menu level (surround).
This function can be switched on or off in this menu. Press the + button (E:11) or – button (E:12) to choose the desired
setting. A voice message confirms the change.
5.3.9 Restore factory defaults (resetting)
To restore the factory default settings, press and hold the PTT auxiliary (E:16) for 2 seconds. This is confirmed by the voice
message “restored factory defaults”.
5.4 PTT (Push-To-Talk)
Press and hold the PTT button (E:15) to transmit manually using the radio. When the radio is transmitting or receiving the
button (E:10) will flash rapidly. PTT transmission works at all times, regardless of the BCLO and settings (see 5.1.7 VOX
and 5.3.1 Busy channel lockout).
6. MAINTENANCE
6.1 Removing and replacing cushions
(P)
P:1 P:2 P:3
P:1 To remove the cushion, slide your fingers under the edge of the cushion and firmly pull straight out.
P:2 To replace, insert the foam liner.
P:3 Then, fit one side of the cushion into the groove of the cup and then press on the opposite side until cushion snaps in
place.
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