This document is the user manual for the PCI Express RS-232 Communication Board, describing the features and characteristics of the product.
This manual describes the SUNIX PCI Express RS-232 Communication Board, a multi‑port serial I/O card compatible with RS‑232/V.24 standards. It explains the board’s features, such as the SUNIX 16C950 UART controller, on‑chip flow control, 128‑byte FIFO, and WHQL‑certified drivers for Windows, Linux, and DOS.
The document covers package contents, hardware installation, pin assignments, driver installation for Windows and Linux, port configuration (COM port numbers, FIFO settings, advanced options), and provides technical specifications, regulatory approvals, and contact information for support.
| Number of Ports | 2 / 4 / 8 / 16 |
|---|---|
| UART Controller | SUNIX 16C950 compatible |
| FIFO Size | 128 byte |
| ESD Protection | +15 kV per signal |
| PCI Express Lane | x1 (single lane) |
The board is available with 2, 4, 8, or 16 independent RS‑232 ports.
No, the board is plug‑and‑play; BIOS automatically assigns I/O address and IRQ.