Handling and operation
Selecting the signal type
The receiver can indicate the reception of a door-
ring signal either optically, acoustically, or optically
and acoustically.
♦
To select, move the signal type switch
desired position:
Adjusting the signal sound volume
Press the VOL button
volume is set.
Loud
SFS 52 B2
— acoustic ringer signal only, the selected
melody will be played
— optical ringer signal only, the signal
display flashes
— optical and acoustic ringer signal
Medium
repeatedly until the desired
GB │ MT
to the
Quiet
│
65
■