Siemens ET 790 Series Información técnica descargar pdf (Pagina 257)

Application Examples

Remote access over the Internet (DSL)

18/9

Siemens ET G1 · 10/2008

■

Overview

Simple modification using remote access

In virtually any project, during completion of a building, or prior

to the building being used, you will be faced with the need for

modifications, e.g. lighting times are too long or too short. Until

now generally involved making an appointment with the cus-

tomer, driving to the site, changing the parameterization, driving

back to the office. Now you can carry out these modifications

from the comfort of your office: With LAN/Internet, you can now

carry out parameterization tasks simply, practically and

remotely. These days, virtually all buildings have LAN and Inter-

net connections - so you always have global access. Because

buildings are not always manned, it is essential to ensure data

security using VPN, DSL or dial-up routers.

This saves time and money and demonstrates to your customers

the degree of flexibility they can enjoy using a GAMMA

instabus

system.

The solution:

The benefits:

• Parameters can be changed quickly and easily over remote

access

• Remote access saves travel times and costs

• Date security is ensured

Proceed as follows:

• Connect the N 148/21 IP interface to the KNX

• Connect the N 148/21 IP interface to the LAN

• Configure the VPN/DSL or dial-up router

You require the following:

• N 148/21 IP interface (5WG1 148-1AB21)

• 24 V power supply for N 148/21 IP interface

(e.g. 4AC2 402)

• ETS3 (current version see http://www.knx.org)

• VPN/DSL or ISDN/analog dial-up router

Note:

• LAN stands for Local Area Network. In LANs, data transport is organized

over the IP (Internet Protocol) – the standard network protocol on the Internet.

• VPN (Virtual Private Network) lets you set up a secure subnetwork over

an open, unsecured network (Internet, wireless network) by protecting

all communication against access or being tapped into by unauthorized

third parties. This is achieved by means of "tunneling" the data traffic over a

VPN server, which means that any connections must be authenticated and

that all data is also encoded.

DSL router with VPN or

ISDN/analog dial-up router

Internet (over VPN connection

or dial-up modem)

KNX device

N 148/21

IP interface

DSL router or modem

I2_15414

KNX LAN

LAN

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

1 2 ... 252 253 254 255 256 257 258 259 260 261 262 ... 291 292

Comentarios a estos manuales

Sin comentarios

Siemens ET 790 Series Información técnica Pagina 257

Comentarios a estos manuales

Relacionado con productos y manuales para Placas Siemens ET 790 Series