Operation
Operation
162
3.5.3 TwinBus colour indoor video station 1 7857
1)
Optionally with switching device 1 4981, e. g. switch light.
Function
Activity
Result
Trigger call signal
(ring)
RiTTO
Call tone
sounds
and
flashes
Operate
door opener
press.
Door opener switches
Switch on/off
call signal
(call switch-off)
press briefly
illuminates
red
press briefly
Call tone sounds
Select calling tone
melody
+
press and
hold
press
repeatedly
Call tone
changes
Adjust
call tone volume
press and hold
Volume has been
adjusted
1)
Switch additional
function (e.g.
staircase light)
Pick up
receiver
press briefly
Switching device
switches
Adjust
brightness
press and hold
max.
min.
brightness
changes
contrast
brightness
press and hold
max.
min.
contrast
changes
Adjust
colour saturation
+
press
and hold
max.
min.
Adjust
changes
Summary of Contents for TWINBUS
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Page 41: ...Installation Assembly connection and start up 41 Installation 00042 0 ...
Page 156: ...Installation Installation Assembly connection and start up 156 ...
Page 193: ...Notes 193 ...
Page 194: ...Notes 194 ...
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