Black Box serial adapter

The Single-Port PCI Card - RS-232/422/485/530 provides you with a single field-selectable port for your PC. The card can easily be configured as RS-232, -422, -485, or -530, supporting asynchronous data rates up to 460.8 kbps. Order the card with the UART upgrade and get isochronous data rates up to the speed of the supplied clock. Want to connect over a clocked digital line while using your standard communications software? The card lets you do just that - without the need for expensive custom software. And, because it slides into any standard PCI slot, you won't have to deal with a cumbersome data-conversion box. For this reason, it's ideal for field use. Configure the port as RS-232 for standard serial COM-port requirements, and you can use it for modems, printers, plotters, and similar devices. The software's easy-to-use diagnostic program even verifies your installation. Configuring the card is just a matter of setting a few jumper straps. I/O addresses and IRQs are automatically assigned by your PC's motherboard BIOS.