Data Sheet for Product
3/10
Building Technologies Data sheet KNX bus CE1N3127en
HVAC Products 18.02.2008
Engineering notes
A complete KNX network comprises three tiers. Area line 0 represents the network
backbone.
15 main lines each branch off of the area line via area couplers Ac (area 1…15), and
15 lines (lines 1...15) each branch off of each main line via line couplers Lc.
1
2
3
64
1
2
3
64
1
2
3
64
1
2
3
64
1
2
3
64
1
2
3
64
1
2
3
64
Linie 1
Linie 2
Linie 3
1
2
3
64
1
2
3
64
1
2
3
64
1
2
3
64
Linie 1
Linie 2
Linie 3
1
2
3
64
1
2
3
64
1
2
3
64
1
2
3
64
1
2
3
64
1
2
3
64
Ac
1.0.0
Lc
1.1.0
Lc
1.2.0
Lc
1.3.0
Lc
1.15.0
Area 1
Line 1
Line 2
Line 3
Line 15
Main line 1
Lc
0.1.0
Lc
0.2.0
Line 1
Line 2
Ac
2.0.0
Lc
2.1.0
Lc
2.2.0
Lc
2.3.0
Area 2
Line 15
Main line 2
Ac
3.0.0
Lc
3.1.0
Lc
3.2.0
Lc
3.3.0
Lc
3.15.0
Area 3
Line 15
Main line 3
Ac
15.0.0
Lc
15.1.0
Lc
15.2.0
Lc
15.3.0
Area 15
Line1
Line 2
Line 3
Main line 15
A
r
e
a
l
in
e
0
(
b
a
c
k
b
o
n
e
l
i
n
e
)
3127Z10en
Lc
2.15.0
Synco devices and third-party devices with KNX bus connection are also referred to as
bus devices. Bus devices have a network address.
In the above illustration, the device arrangement arranged on the three-tier KNX
network, with factory-set area/line address 0.2 on the Synco devices, corresponds to
the grayed area.
Without area and line coupler, the network structure (due to the given area/line address
0.2) is limited to area 0, line 2, thus to one
line.
KNX network
Notes