Area/Line Couplers And Ip Router - Siemens RXB Series Basic Documentation

Use of couplers
Siemens area/line
coupler
Use of IP routers
Siemens IP router
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Siemens
Building Technologies
1.4

Area/line couplers and IP router

Complex networks covering large areas may require area and line couplers for two
main reasons.
When the KNX network comprises more than 64 bus devices.
When the network would exceed the permissible limits without couplers.
A network which uses area and line couplers makes it possible to create
"communication islands" with the aim of restricting data traffic across areas or lines
to a minimum. The couplers link the "communication islands" on the basis of the
network layer (the router function of Layer 3 of the OSI reference model).
The recommended area/line couplers are supplied by Siemens, order numbers:
5WG1 140-1ABx3, short code N140/x3
bus connected to main line and line via bus terminals.
For further information see the product description and description of functions
(enclosed with the device) or under:
1)
IP routers are required when a KNX network needs to be connected to an IP
network.
As a device, the IP router is not technically the same as the area/line couplers.
Instead of establishing a link within KNX, a "KNX-IP network" link is created,
whereby the IP router connects a KNX area or a KNX line to an IP network.
1)
IP = Internet Protocol: Network protocol for data traffic, routing and, in the case of internetworking,
for global, addressing.
The recommended IP router is supplied by Siemens, order no.:
5WG1 146-1AB01, short code N146
Bus connected via bus terminals, IP network connected via RJ45 socket
For further information see the product description and description of functions
(enclosed with the device) or under:
KNX bus communications
KNX and Synco
http://www.siemens.com/knx-td
For internal use only
CE1P3127en
2013-04-08