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Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en
HVAC Products Large plants 30.08.2007
8.1.1 Network topologies
Three network topologies are illustrated on the next three pages. Among the points
to note are the details of the LTE filter table (see also section 8.2).
KNX network with area and line couplers
1.2.1
1.1.1
RM...
1.1.2
RM...
1.1.250
RM...
1.2.2
RM...
1.2.250
RM...
RM...
1.15.1
RM...
1.15.2
RM...
1.15.250
RM...
N140/13
1) 1)
N140/13
1)
N140/13
N140/13
1)
1.0.1
RM...
RM...
1.0.2
1.0.250
0.2.150
OZW775
1)
2.0.1
RMB...
2.0.10
RX...
RX...
2.0.20
RX...
2.0.250
N140/13
0.2.254
1)
N140/13
15.0.1
RM...
1)
N140/13
0.2.252
RMZ792
15.0.2
RMB...
15.0.10
RX...
RX...
15.0.250
15.1.10
RX...
RX...
15.1.250
RM...
RMB...
15.1.1
15.0.252
RMZ792
USB
Line 1
Line 2
Line 15
Main line 1
Area 0
ACS alarm
pager, SMS, fax
Main line 2
PC with ACS
Service
interface
Line 1
Main line 15
3127Z42en
connector
Bus connector
socket
Service cable
RJ45
Ac 1.0.0
Ac 15.0.0
Lc 1.1.0 Lc 1.2.0 Lc 1.15.0
Lc 15.1.0
Ac 2.0.0
LTE filter table: 1) Normal (route)
As already stated several times, one line (KNX TP1) can accommodate a
maximum of 64 bus devices. The addresses (x.y.250) should refer to the highest
recommended
bus device address (250) and not on the maximum possible number
of bus devices.
Example 1
Note
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