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vital-well.com
INTRODUCTION
The VW series Radio Modem provides the capability of a short range, reliable
wireless point-to-point, point-to-multipoint and mesh network RF data
communications link.
The VW series modem can be used in a variety of data communications
applications that require a simple to use invisible data link. The radio modem is
designed to interface to a variety of host devices. These devices include
computers, receipt printers, PLC
’
s, data loggers, SCADA devices and intelligent
control systems.
The serial data transferred over the radio link is not altered; the output serial data
stream is the same as the input serial data stream. The radio modems provide a
two-way data communications links, where each unit can accept serial data and
also output serial data.
The VW series radio modems are fully self-contained units, requiring only an
ex5VDC (or +3.3VDC) power source to operate. The radio modules used
in the radio modems have been selected to meet the requirements of unlicensed
operation in the international ISM bands, and are therefore acceptable for use in
many countries.
Features
§
4 operation modes: Transparent mode, Transparent secured mode,
Addressed mode and Addressed secured mode
§
Repeater supported
§
Deep sleep mode
§
Server-Client mode
§
Broadcast Multi-drop mode
§
Serial protocol format is 9600bps,8 data/1 stop/no parity.
§
Selectable flow control of software/none.
§
Selectable radio speed, channel and radio power.
§
On-air data encryption, error checking and data acknowledgements.
§
Easy configuration by AT commands.
§
Built in configuration and diagnostic functions.
This manual describes the electrical specifications and different functioning
modes available on the VW series. This description will also help you to
understand the principles behind the configuration registers and to use them
more efficiently.
