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RS485 communications can be used effectively over
long distances (up to 1000 feet) and in electrically
noise environments as result of electromagnetic
interference from motors and welding equipment.
Also, multiple receivers (EVOLUTION Printers) -up to
32- may be connected to such a network in a linear
multi-drop configuration in a master-slave topology.
If we are interested in writing a customized Windows
software application to drive the EVOLUTION LX
printer from a personal computer the standard RS232
serial port has to be used to control and drive the
RS485 EVOLUTION LX Printer. So, the addition of a
converter from RS232 to RS485 is necessary with its
corresponding driver.
Since today the RS232 is being gradually replaced by
USB for communications in personal computers as
result of which most of the new computers desktops
and laptops no longer have built-in standard serial
(COM) ports, a USB to RS232 converter also is
necessary, therefore a “virtual serial port” which is
an emulation of the standard serial port has to be
installed. This port is created by software which
enables extra serial ports in an operating system
without additional hardware installation.
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EVOLUTION LX SYSTEM MANUAL Issue 1.0 5 DEC 2009