Assortment / System Description

85
Network environment of web server OZW772
The web server is commissioned on site via the USB interface using a PC/laptop
on which a suitable web browser or the ACS790 software is installed.
It is to be checked whether the OZW772 web server is integrated in a private
network (LAN) or a proprietary network (Intranet) with/without connection to the
Internet.
Another criterion is whether the web server shall send e-mails to an in-house mail
server or via the Internet to an external mail server.
The OZW772 web server is to be connected to the Internet via Ethernet and DSL
router (with built-in DSL modem) and DNS server.
NAT = Network Address Translation, PAT = Port and Address Translation. DynDNS = Dynamic Domain
Name System, registers dynamic IP addresses and links these to domain names
Prerequisites for integrating the OZW772 web server in an Ethernet TCP/IP
network:
• The web server is correctly integrated in the network, physically and logically
• IP address, IP subnet mask, DSL router (standard gateway) and DNS server are
configured
To be able to send e-mails (e.g. alarming via e-mail), following information must be
available:
• E-mail account, mail server address, port number of mail server, e-mail address
of sender, authentication of mail server, user name, and password
This information is to be obtained from the e-mail provider. In the case of a
proprietary network, the information is provided by the network administrator.
Fault status messages, meter consumption data and "Energy indicators" are
delivered by e-mail via SMTP. If supported by the mail server, e-mails are
transmitted encrypted with TLS (Transport Layer Security).
For connection to the Inter
net or Intranet, the conventional telephone lines normally
used are made of copper. In that case, a DSL router with built-in DSL modem is
required (DSL = Digital Subscriber Line).
Commissioning
Topology of
Internet connection
Integrating the web
server in Ethernet
E-mail account
Sending e-mails
Connection to
Inter
net or Intranet