A SERVICE OF

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ENGLISH
8
Using a System phone
IMPORTANT
Adjust the microphone volume when installing the unit. See next page.
1 2
3
Only mains transformers of types Helms-Man DEN4824129, DPX481821 (USA)
or DBN4824129 (UK) may be connected.
Microphone
Indicator lights
Loudspeakers
On/off button
- button
Mute button
+ button
Tuning button
6 m 3 m