The 4163 high-performance quad asynchronous serial port card in PC/104-Plus format is available in quad RS232, quad RS422/485, and dual RS232 + dual RS422/485 versions.
The cards use an advanced 16C550-compatible UART with 128 byte receive and transmit FIFOs for higher baud rates of up to 3.6864 M bauds and lower interrupt overhead. The UART supports automatic hardware and software flow control. Hardware flow control uses the RTS and CTS handshaking lines, and the software flow control uses one or two programmable Xon and Xoff characters. All RS232 and RS422/485 I/O pins are protected against 15 KV ESD transients. RS422 models support half- and full-duplex RS422 and RS485 modes. The UART also supports automatic direction control for half-duplex RS485-type applications, simplifying RS485 support software. On card-selectable 130 ohm RS422/485 termination is provided.
Pricing in quantities of 100 is $135 each.
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