Main Features
Four independent RS-232/422/485 serial ports
Speeds up to 115.2 Kbps
Interrupts (jumper selectable): 3, 4, 5, 7, 9, 10, 11, 12 or 15
On-board interrupt status register for greater throughput
Automatic data flow control in RS-485 mode

Introduction
The PCL-746+ is a four-port serial communication interface card. The main feature of this card is that each port can be configured individually to either RS-232, RS-422, or RS-485 using on-board jumpers. The card uses 16C550 UARTs and improved interrupt handling for reliable operation at transmission speeds of up to 115.2 kbps.

Ordering Information
Part Number Description
PCL-746-B 4-Port RS-232/RS-422/RS-485 Card Rev.B1