UI_770.book Seite 7 Mittwoch, 24. Oktober 2012 1:50 13
Putting the UI 770 into operation
Adjusting the UI 770
Use the switches at the bottom of the housing to adjust the
UI 770.
UI 770
1
ABC switch
Microphone
2
volume control
3
EU switch
Function of the switch/control
Adjusts a clear dial tone (wiring)
Adjusts the volume of the headset micro-
phone (position 1-9)
Limits the speaker volume (according to the
EU Noise Directive 2003/10/EC)
1
2
3
UI 770
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