English
Application
Comfort bus telephone for Siedle
In-Home bus.
Deluxe bus telephone. Connection
at bus cores Ta and Tb.
Functions:
• Calling, speech, door release and
storey call
• Door release and light button
• Internal speech communication
• 11 ringtones
• Call and speech volume can be
changed in 5 steps
• Silencing button for the ringtone
• 7 keys for switching and control
functions with double assignment
facility
• 7 LEDs under the buttons for dis-
play of switching statuses
• Integration of ZAR/ZPS 850-...
accessory possible
Electrical voltage
Mounting, installation and servicing
work on electrical devices may only
be performed by a suitably qualified
electrician.
Electrostatic charging
As a result of electrostatic charging,
direct contact with the circuit board
can result in destruction of the
device. Direct contact with the circuit
board must therefore be avoided.
Scope of supply
• BTC 850-... (base plate and
housing with circuit board)
• Receiver
• Spiral cable
• Operating instructions for the
end user
• This product information
Mounting
Strip back cable to appr. 80 mm.
1 Recommended mounting height
appr. 1.50 m/4.9 ft to centre device.
2 Open the device from the back
by releasing the base plate with the
locking Lever.
3 When mounting directly on the
wall, fasten the base plate using
4 screws, paying attention that
the plate is the right way up (top
marking).
4 When mounting on a switch box,
use the screw openings in the centre
of the device, paying attention that
the plate is the right way up (top
marking).
5 Install in accordance with the
wiring diagram. The cores of the
installation cable must be stored
inside the free installation space in
the base plate.
6 Insert the coloured plug of the
spiral cable into the socket at the
housing. A distinct click is audible
when the plug is correctly inserted.
7 Insert the other end of the spiral
cable into the receiver until the plug
clicks audibly into place. This con-
nection can no longer be detached.
8 Hook the housing into the base
plate from above and close by
exerting a slight pressure.
Dismantling
9 To remove the housing, press
the lock upwards using a flat blade
screwdriver. The circuit board and
receiver remain on the upper part of
the housing.
Lettering
10 The lettering panel can be
inscribed to indicate the button
functions. The see-through panel
can be lifted at the side.
Terminal assignment
Ta, Tb
In-Home bus
ERT
Storey call button
Commissioning
Installation, commissioning and
programming are described in the
system manual (enclosed with line
rectifiers BNG/BVNG 650-...).
Accessories for BTC 850-...
• ZAR 850-... for actuation of an
additional chime.
• ZPS 850-... for parallel
programming of more than
4 BTC 850-... units (max. 8
BTC 850-... with one call button).
• ZTC 800-... for conversion from a
wall unit to a desk unit.
Specifications
Operating voltage: via In-Home bus
Ambient temperature:
+5 °C to +40 °C
Dimensions (mm) W x H x D:
106 x 201 x 46
3