Operation
Operation
174
3.5.8 TwinBus handsfree intercom unit 1 7230
1)
Best voice quality at a distance of an arm's length.
2)
Optionally with switching device 1 4981, e. g. switch light.
3)
Only
must be pressed while a conversation is in progress.
Function
Activity
Result
Trigger call signal
(ring)
RiTTO
Call tone
sounds
and
flashes
Operate door
opener
press.
Door opener
switches
Establish voice
connection
1)
press.
Voice connection active for 1 min
illuminates
RiTTO
2
press.
RiTTO
2
Voice connection
cancelled
Switch on/off
call signal
(call switch-off)
press briefly
illuminates
press briefly
Call tone
sounds
Select calling tone
melody
+
press and
hold
press
repeatedly
Call tone
changes
Adjust
colour saturation
press and
hold
Volume has been
adjusted
Voice volume
colour saturation
press and
hold
Volume has been
adjusted
2) 3)
Switch additional
function (e.g.
staircase light)
+
press and
hold
press.
Switching device
switches
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