Siemens ET 790 Series Technical Information PDF herunterladen (Seite 203)

System Products

Line couplers

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Siemens ET G1 · 10/2008

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Overview

Classic topology

Modern topology

Innovative topology

LK LK

LK LK

LK LK

LK LK

LK LK

BK BK

Area 1

(West wing)

Line 1.5 Line 2.5

Level 5

Line 1.4 Line 2.4

Level 4

Line 1.3 Line 2.3

Level 3

Line 1.2 Line 2.2

Level 2

Line 1.1 Line 2.1

Level 1

Backbone

line 0.

Area 2

(East wing)

Main line 1.0

Main line 2.0

N 140 line/backbone couplers

for backbone and line connection

I2_14029

1.5.0 2.5.0

1.4.0 2.4.0

1.3.0 2.3.0

1.2.0 2.2.0

1.1.0 2.1.0

1.0.0 2.0.0

KNX

In the classic topology, all the line and

backbone couplers are traditionally

KNX couplers.

This topology is tried and tested and is

widely deployed. The bus cable

lengths are generally limited to a single

building.

LK LK

LK LK

LK LK

LK LK

LK LK

N 146 IP router as backbone coupler

Area 1

(West wing)

Line 1.5 Line 2.5

Level 5

Line 1.4 Line 2.4

Level 4

Line 1.3 Line 2.3

Level 3

Line 1.2 Line 2.2

Level 2

Line 1.1 Line 2.1

Level 1

Area 2

(East wing)

Main line 1.0

Main line 2.0

Data network

(LAN)

I2_14027

1.5.0 2.5.0

1.4.0 2.4.0

1.3.0 2.3.0

1.2.0 2.2.0

1.1.0 2.1.0

1.0.0 2.0.0

KNX

In this modern topology, the backbone

couplers are replaced by N146 IP routers.

In this case (for example), due to the

use of standard network components,

the linking of 2 building sections is no

longer restricted by the lengths of the

bus cable.

Other media, such as optical fiber cables

or W-LAN, can also be used to couple

separate building and for the exchange

of group address telegrams.

LK

LK

LK

LK

LK

LK

LK

LK

LK

LK

N 146 IP router as line coupler

Area 1

(West wing)

Line 1.5 Line 2.5

Level 5

Line 1.4 Line 2.4

Level 4

Line 1.3 Line 2.3

Level 3

Line 1.2 Line 2.2

Level 2

Line 1.1 Line 2.1

Level 1

Data network

(LAN)

Area 2

(East wing)

I2_14028

1.5.0 2.5.0

1.4.0 2.4.0

1.3.0 2.3.0

1.2.0 2.2.0

1.1.0 2.1.0

KNX

In this innovative topology all line

couplers are replaced by

N 146 IP routers.

Backbone couplers are no longer

required. This configuration enables

the linking of each individual building

level over Ethernet (LAN) and through

the utilization of existing LAN networks.

Furthermore, the correct configuration

of the N 146 IP router makes the

commissioning of both large projects

and smaller individual projects quicker

and easier to manage.

An exchange of group address

telegrams is still possible even if

projects are broken down into

individual projects, see chapter

"Application Examples".

ET_G1_2009_en.book Seite 11 Freitag, 28. November 2008 9:50 09

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