RS422 or RS232
COM1, COM2, COM3 or COM4.
5, 6, 7 or 8 bit character length, even, odd or no parity.
RTS, DTR or CTS handshaking.
115K Baud RS232 or RS422.
16550 ASYNCH chip has 16 byte data buffer.
The PCM-COM422 is a 100% IBM Asynch adapter compatible
serial interface. It adds one EIA compliant RS422/RS232 serial
communications port to your computer.
The choice of RS232 or RS422 is made by selecting a cable that
brings out the signals for one interface or the other. The RS422
interface support longer transmission lines (up to 1.2 Kilometers)
and is often the interface of choice for instruments. ComputerBoards interface board. cables not included. Compatible with up to windows 2000 (not xp or higher) original Price new $149.00