ABB 83300-500, User Manual

Page: 35 / 58

Warning: Low-voltage and 230 V cables must not be installed together in a flush-mounted socket.
In case of a short-circuit there is the danger of a 230 V load on the low-voltage line.
Installation instructions for system devices
Recommendation: All MDRC units should be mounted in
the central distribution of the building. This can be altered
depending on the size of the building and topology selected.
For example, when installing an auxiliary power supply in the
sub-distribution of the apartment, for connecting the devices.
The ABB-Welcome indoor FM video distributor is suitable for
mounting in rising mains below a floor call button in a deep
flush-mounted wall box.
Wiring the devices
Internal bus
The internal bus is wired continuously via terminal pairs a
1
/
b
1
available on the devices. To connect the two internal bus
lines, the system controller has two terminal pairs a
1
/b
1
. They
are labelled OUT 1 and OUT 2. Starting from these terminal
pairs the internal bus lines are fed to the indoor stations,
including IP gateway, the indoor video distributors and the
auxiliary power supplies and there also connected to a
terminal pair a
1
/b
1
.
For a device with only one terminal pair a
1
/b
1
this is used for
looping the bus line. Also terminal pairs a
1
/b
1
labelled IN are
* An exception is the indoor FM video distributor, which contains two internally bridged terminal pairs a1/b1 labelled IN for more practical wiring.
used for looping the bus line on indoor video distributors and
the auxiliary power supply.* The stub line of the bus line is
connected to the terminal pairs a
1
/b
1
labelled OUT 1 to 4.
External bus
The external bus is wired continuously via the terminal pairs
a
2
/b
2
available on the devices. The system controller has a
terminal pair a
2
/b
2
labelled IN to connect the external bus line.
To these the external bus lines to the outdoor stations, the
outdoor video distributors and the switch actuators are con-
nected.
The terminal pairs a
2
/b
2
labelled IN 1 and IN 2 are used on
the outdoor video distributors for connecting the bus lines
coming from the outdoor stations. The terminal pair a
2
/b
2
labelled OUT is used for connecting the bus line going to the
system controller. Only one terminal pair a
2
/b
2
is available on
the door/light switch actuator. It is used for looping the bus line.
Additional terminal pairs
All additional terminal pairs – for connecting an electronic
door opener or floor call button – are explained in the operating
manuals of the respective devices. Additional connecting
diagrams are available as example on pages 52 to 53.
1.5 m
0.6 m
1.90 m 1.10 m 1.70 m 0.82 m
0.6 m
2.18 m 1.30 m
0.6 m
0.6 m
0.4 m 0.4 m 1.12 m
+
–15°
-15° +15°
User Manual ABB-
Wel
come |
Installation 35