详细信息：

• 4-port RS-232/422/485
• 32bit 33/66MHz PCI bus backplane
• Speeds up to 115200 bps
• 16C954 UARTs with 128-byte standard
• 2KV Surge protection
• Support 5V only power input
• RIO Support 4-port RS-232/422/485
• PICMG 2.0 Rev. 3.0 compatible
   数据表(PDF)    技术资料下载