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Universal PCI Serial Cards User’s Manual
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REV: 1.1
Introduction
Universal PCI (UPCI) multi-port serial cards can be installed in PCI or PCI-X slots, and support
both 3.3V and 5V PCI/PCI-X. With a UPCI board, you can connect data acquisition equipment
and other serial devices to your PC over RS-232, RS-422, or RS-485. Each board has on-chip
hardware and software flow control, a built-in 128-byte Tx/Rx FIFO, and well-designed device
drivers that have been fine-tuned. This allows UPCI boards to support data transfer rates of up to
921.6 Kb/s.