Specifications

Chapter 1 Introduction 5

Features

v Four independent RS-232 serial ports

v Transmission speeds up to 921.6 Kbps

v Independent/Shared I/O addresses and IRQ settings for each of 4

serial ports

v Wide IRQ selection: 3, 4, 5, 6, 7, 9, 10, 11, 12, 15

v Supports Standard DOS COM1, COM2, COM3, and COM4

v Supports DOS/Windows 3.1 (PC-ComLib), Windows 95, Windows

v Supports surge protection: 2000 V

(PCL-849B/849+)

v PC-ComLib software included

v LED indicators on each port indicate data flow

v Compatible with standard PC ports: COM1, COM2, COM3, COM4

v On-board interrupt status register for greater throughput

v Complete RS-232 Modem-control signals

Specifications

· Bus interface: ISA

· Number of ports: 4

· I/O address: 0x0200 ~ 0x03F8

· IRQ: 3, 4, 5, 6, 7, 9, 10, 11, 12, 15

· Data bits: 5, 6, 7, 8

· Stop bits: 1, 1.5, 2

· Parity: none, even, odd