Operation Manual

SFS 16 C3

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15 ■

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  to the

desired position:

— acoustic ringer signal only, the selected melody

will be played

— optical ringer signal only, the signal display

ﬂashes

— optical and acoustic ringer signal

Adjusting the signal sound volume

Press the VOL

button



repeatedly until the desired

volume is set.

quiet medium loud very loud