Features
• Each port individually configurable for RS-232, RS-422, or RS-485
• Optically isolatied serial ports, galvanically isolated power to the
transceiver
• 16C952 buffered UARTs with 128-byte FIFOs
• Oscillator and clock prescalar support wide range of baud rates
• Supports 9-bit protocol framing
• Each port supports data rates to 460.8K bps
• RS-485 line termination, pull-up and pull-down resistors for each port
are selectable via dipswitch
• RS-485 ECHO can be enabled/disabled via dipswitch
• PCI Express X1 compliant
• Compatible with all standard size PCI Express slots
• All modem control signals implemented in RS-232 mode
• Automatic RS-485 enable/disable in hardware
• Board includes two DB9M connectors