Just because today's consumer-grade computers no longer include the venerable serial port doesn't mean the legacy port is dead.
Quite to the contrary, the serial port is still thriving in industrial controls, medical devices, and automated test systems. In fact, there's a good change you still use the serial port on your test bench when you need a quick connection and measurement. As a result, you'll find RS-232, RS-422, RS-485, and other serial ports on millions of devices in use today.
Sealevel Systems has been designing and manufacturing serial-port interface for many years. With new PCs lacking serial ports, the need to keep systems running on new computers has fueled a need for more serial-port interfaces. Today, the company announced another pair of serial-port interface card for desktop and industrial computers.
The $459 5102e adds one RS-232, RS-422, RS-485, RS-530, RS-530A, or V.35 to any PCIe port. The type of port is software selectable and is available through the card's DB-25 connector. Sealevel has also introduced an RS232-only cards for $449, the 5103e.
Are you still using the serial port? Tell us what equipment you use.