Operation
159
Ope
rat
io
n
3.5
Indoor telephones, indoor video stations and intercom units
3.5.1 TwinBus indoor telephone 1 7630
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 call tone
+
press and
hold
press
repeatedly
Call tone
changes
Change call
tone volume
press and hold
Volume has been
adjusted
Switch additional
function
(e g. light)
1)
Pick up
receiver
press briefly
Switching device
switches
Содержание TWINBUS
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