User's Manual

OS2400 Radio Module Exhibit 21: User Manual 3 FCC ID: OQ7OS2400
14
Network Design
Radio Network Basics
RADIO NETWORK DEFINED
A radio network provides wireless replacements for serial cables. Any two devices
which could otherwise function together with a physical serial cable between them can
be incorporated into a wireless network and continue to function as before. The basic
network consists of a Master Radio cabled to one Device and a Remote Radio cabled to
another.
As examples, a Master Device - Remote Device pairs could be:
?? a computer with a printer
?? a computer with a scanner
?? a scanner with a printer
?? a Modbus controller and an industrial tool
A radio link can be used in any situation where a Master Device and its Remote Device
are located such that a serial cable connection between them is impractical or
impossible. The radios are designed to communicate up to 20 miles.
An example of a simple radio network is illustrated below. The Master Device is a
computer and its Remote Device is a hand held terminal.