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CHAPTER 2: Introduction
2. Introduction
The Serial
↔
Parallel Converter VI converts RS-232
serial to IBM
®
PC parallel or vice versa. The unit
will automatically set itself for the direction of
conversion. The Converter supports both
X-ON/X-OFF and DTR/CTS serial hardware
handshaking, and Busy/Acknowledge parallel
handshaking.
Since the Converter is powered by the connected
devices, it needs no external power source.
The Converter is programmed with an 8-position
DIP switch for baud rate, parity, word length, and
flow control.
Because the Converter is so small and light, it’s
easy to connect it directly to a DB25 serial port or
a computer’s DB25 parallel port. For other
connections, all you need is common, low-cost
serial or PC parallel-printer cables.
NOTE
In the applications for which the Converter was designed
and tested, it is installed between PCs and printers. The
Converter should function normally in such environments.
However, the Converter will not work with certain serial
devices that do not comply with the RS-232 specifications
for voltage. To be sure, consult with devices’ manufacturers.