2-port RS-422/485 ISA COMM Card w/Isolation

• Two independent RS-422/485 serial ports
• Provides 3000 VDC isolation
• 16C550 UARTs with on-chip 16-byte FIFO
• Transmission speeds up to 921.6 kbps
• I/O address and interrupt selectable
• Wide IRQ selection: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15
• Supports 2 wire or 4 wire operation
• Supports Tx, Rx, RTS, and CTS signals
• Automatic RS-485 data flow control or RTS control
• Termination resistors jumper enable/disable
• Space reserved for optional surge protection on data lines
• Supports Windows® 98/2000/XP, Linux®

Data sheet (PDF): PCL-745B