3
Brief overview
Gigaset HC450 / en / A31008-M1799-R101-2-7619 / Overview.fm / 29.09.2008
Ve
rs
io
n 4, 16.0
9.20
05
Door opener, bell and entry lighting
The following devices, which are not
among the items supplied, can be con-
nected to the HC450 and operated:
Door opener:
The door can be opened from
the Gigaset handset or, in the
case of a forwarded call, from
a remote location. To do this, a
standard door opener must be
connected (not supplied). The
voltage pulse (12 V alternating
voltage) for opening the door
is supplied by the HC450.
Bell:
An existing bell will be con-
nected to the HC450.
Door light:
A light circuit (e.g. the entry
lighting) can be switched on
from the handset and if appli-
cable via the bottom bell key
for between 1 and 90 seconds
or also operated in pulse mode.
The connection to the floating
contact (230 V, 10 A) must be
undertaken by a qualified elec-
trician.
The illustration below shows the cabling
with an existing doorbell (before) and the
cabling following installation of the
HC450 door intercom and HC450 control
unit (after).
Doorbell
Before
After
Bell transformer
Bell trans.
Bell
Door intercom
Door opener
(o
pt
io
na
l)
Bell transformer
Bell trans.
Bell
Power
supply unit
Light
Ac
tuat
or ETS
Control unit
Doo
r opener
Contr
ol un
it
Push-
button
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