User's Manual

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Q&A about Viewing the Web Site
Q.1 Can I use a RTR-5W logger without connecting it to a network ?
A
If the RTR-5W is not connected to a network, the downloading of recorded data, the
display of current readings, recording settings and all other types of settings cannot be
carried out.
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Q&A about Networks
Q.1 What is a network ?
A
A network is a system in which a group of computers are connected by cable (copper wire,
optical fi ber, etc), infrared ray, radio waves or other means in order to share and exchange
information.
There are basically two types of computer networks.
A Local Area Network or LAN consists of a group or network of computers in a limited range.
A Wide Area Network or WAN is a network of computers that are connected over long distance. The
Internet is an example of a WAN that has connected a multiple number of networks.
Q.2 What is an IP address ?
A
In a network, in order to distinguish your computer from another it is necessary to assign a
number; this number is called an IP address.
When you connect to an outside network such as the Internet the IP address that is used is
referred to as a "Global IP address. In a Local Area Network the IP address that is used is
called a “Private IP address".
An IP address is divided into 4 blocks of numbers separated by periods, such as
"192.168.15.10". The assigned numbers can use the digits 0-255 with private IP addresses
usually beginning with numbers such as "192.168.".
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However, the number "255." is not usually used.
This number is absolutely necessary to enable participation in a network, so it is necessary
to set the IP address to a number that suits your network environment.