Product Features.The serial port can realize the power supply of pins 1 and 9 Support special baud rate Industrial temperature range: -40 to 85°C Independent power chip, can achieve 5v/12v power supply without external power supply. The computer host suitable for PCI-E slot can provide 4 standard DB9-pin RS232 serial ports, and the bidirectional speed of full serial modem control of each port is up to 25Mbps, which supports remote wake-up and power management functions. 1. Features PCI Express Single-lane (X1) PCIExpress endpoint control with PHY integration Compliant with PCI Express 2.0 Gen 1 Compliant with PCI Express Card Specifications Compliant with PCI Power Management 1.2 Supports both legacy and MSI interrupts Support ASPM power management Equipped with short iron pieces (optional), supports 2U chassis. serial port Dual UART or Quad UART Supports RS-232 full serial modem control bi-directional speeds up to 25Mbps per port Supports hardware and software flow control Supports 5, 6, 7, 8, 9 bit serial formats Support serial communication verification mode: even, odd, none, 0, 1 Supports on-chip 256-byte FIFO for transmit and receive on each serial port path Supports remote wake-up and power management functions Support serial port transceiver shutdown All serial ports support slow IrDA mode (up to 115200bps) Support 9-bit mode multi-point application Provide RS-232 serial port 5v or 12v DC power output through COM pin 1 or 9 Support DMA burst transfer Operating temperature range: 0 to 70°C or -40 to 85°C (optional) Support special baud rate (optional) Applications Serial Connected Devices Serial Network/Monitoring Devices Data Acquisition Systems POS Terminals and Industrial PCs Add-in Cards for Serial I/O/USB 1/0 Expansion for