PCMCIA RS-232 Serial Interface Card The PCMCIA serial interface card provides one RS-232 serial port capable of data rates to 115.2K bps. The board implements all modem control signals for maximum compatibility with a wide range of peripherals. The 3603 utilizes a 16C550 UART that provides 16-byte Tx/Rx FIFOs and ships with a 12¡± detachable cable that terminates to a DB-25M connector. Ordering options allow the choice of UARTs for custom baud rates and 9-bit protocols. Sealevel Systems provides I/O solutions for connectivity technology. Sealevel's commitment to providing the best I/O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured I/O products.