Main Features

• Two independent RS-422/485 serial ports
• Provides 3000 VDC isolation
• Provides 2500 VDC surge protection
• 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
• Supports standard DOS COM1, COM2, COM3, and COM4
• Supports Windows® 98/2000/XP, Linux®
• Powerful and easy-to-use utility (ICOM Tools)