This manual describes the features and usage of the PCI Express Powered RS-232 Communication Board.
This manual describes the Sunix PCI Express Multi‑Port RS‑232 Communication Board, a PCI Express x1‑x16 slot card that provides up to 16 serial ports with optional +5 V or +12 V power output per port. The board uses a SUNIX 16C950‑compatible UART controller and includes on‑chip flow control, a 128‑byte FIFO and WHQL‑certified drivers for Windows, Linux and other operating systems.
The document provides safety information, a package checklist, detailed hardware installation steps, jumper and pin assignments, driver installation procedures for Windows and Linux, and extensive port configuration options such as COM port numbers, FIFO settings and advanced features.
| Number of Ports | 2/4/8/16 |
|---|---|
| FIFO Size | 128 byte |
| Power Output per Port | +5 V or +12 V DC |
| ESD Protection | +15 kV per signal |
| PCI Express Interface | x1 lane (PCI Express 1.0) |
| Connector Type | DB9 male (standard) or DB44 female |
The board is available in configurations with 2, 4, 8 or 16 independent RS‑232 ports.
Yes, each serial port can output either +5 V or +12 V DC to power attached devices.