Samsung UN19D4000 E-Manual page 52

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You can attach your TV to your LAN by connecting the LAN port on the back
of your TV to a IP Sharer (router) which is connected to an external modem.
Use LAN cable for the connection. See the diagram below.
The Modem Port
on the Wall
◀
External Modem
(ADSL / VDSL / Cable TV)
Modem Cable
IP Sharer
(having DHCP server)
LAN Cable
English
TV Rear Panel
LAN Cable
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