Niko 10-880 Mode D'emploi page 23

the receiver or automatically when the receiver is put down again. The green LED on the
internal unit will go out.
Possible settings:
- Adjusting the volume on the flush type loudspeaker:
The volume of the microphone (volume on internal unit) and the loudspeaker (volume on
external unit) can be adjusted using the potentiometers on the flush type loudspeaker. Turn
left to decrease the volume, turn right to increase the volume.
Position
- Connecting an external loudspeaker:
If you wish to connect an external loudspeaker, an impedance of 50Ω is required.
- Testing a bell push button:
To check whether a bell push button has already been programmed, proceed as follows:
Briefly press
the relevant bell push button
5. TECHNICAL DATA
Flush type loudspeaker:
- Dimensions: ...................................... 109 x 80 x 25mm
- Weight: .............................................. 90g
- Operating temperature: ...................... -20 to 50°C
- Cable length microphone: ................. 250mm
- Max. number of bell push buttons: .... 16
10-880 & 10-881
Function
potentiometer for loudspeaker (volume on
external unit)
potentiometer for microphone (volume on
internal unit)
One short tone
+ light relay is switched
= NOT yet programmed
Ring tone
= already programmed
23