- Two, four or eight asynchronous serial ports in various electrical interface configurations.
- Supports full duplex (4 wire) with RTS/CTS flow control, half duplex (2 wire) with auto TxD echo cancellation and multi-drop (4 wire) duplex communication modes in RS-244/485.
- Maximum data speeds of 921.6 Kbps (RS-232) and 1.843 Mbps (RS-422/485).
- Optional multi-strike surge suppression; IEC 1000-4 compatible on all signals, all ports.
- Each port can be configured independently for baud rate, parity, data and stop bits.
**Not recommended for new designs.**