神基科技 Notebook-A320T-RS232用户手册（英文）.pdf

RS232/RS422

A760/A760T/A770

INSTALLATIONGUIDE

PreparedBy:______________

ReviewedBy:_______________

ReviewedBy:_______________

ReviewedBy:_______________

ReviewedBy:_______________

ApprovedBy:______________

P/N:799001123002R02

RS232/RS422

A760/A760T/A770

INSTALLATIONGUIDE

P/N:799001123002R02

RS-232/RS-422UserGuide,A760/A760T/A770

TableofContents

Chapter1Introduction

1.1Introduction1

1.2Features2

1.3Specifications2

1.4PinAssignments2

i

RS-232/RS-422UserGuide,A760/A760T/A770

Chapter1

Introduction

1.1Introduction

TheRS-232/RS-422cardcanprovidetwo

RS-232/RS-422serialports.

Equippedwiththeindustrialstandard16C552

asynchronouscommunicationchip,thiscardfeatures

fullprogrammableserialinterfacecharacteristics.

TheFigure1showstheRS-232/RS-422Boardinthe

notebookcomputer.

COM3COM4

RS232/RS422Board

Figure1RS-232/RS-422Board

Rev.021

RS-232/RS-422UserGuide,A760/A760T/A770

1.2Features

•TwoindependentRS-232/RS-422serial

ports

•Transmissionspeedsupto115KBPS

1.3Specifications

•Ports:2

•UART:2X16C552with16-byteFIFO

•Signalssupported:

RS-422:TXD+,TXD-,RXD+,RXD-

•Signalssupported:

RS-232:DCD#,RXD,TXD,DTR#,DSR#,

RTS#,CTS#

•I/Oaddresses:2E8,3E8

•IRQ:3,4,5(Default),11(Default)

•Connectors:DualDB-9malec