From Wikibooks, the open-content textbooks collection

All bookshelves > Science bookshelf > Computer Science bookshelf > Serial communications bookshelf > RS-422 Technical Manual

---

NOTE: This is a very sparse document right now. You may want to check out wikipedia:RS-422 or wikipedia:RS-232 in the meantime for more information.

Contents 1 Introduction 2 History 3 Physical Layer 3.1 Requirements 3.2 Limitations 4 Handshaking 5 RS-422 in the Real World 5.1 Nonstandard Connectors and Wiring 5.2 Physical Limitations in Practice

[edit] Introduction

RS-422 describes a serial data link that is technically superior to RS-232. Apple Macintosh computers from 1984 to ___ all had a RS-422 port.

If you are designing new hardware, you'll generally want to design to the RS-485 standard instead (see the Serial Programming:RS-485 Technical Manual). That way your new hardware will be able to communicate with both RS-485 and RS-422 equipment.

[edit] History

(stub)

[edit] Physical Layer

(stub)

[edit] Requirements

(stub)

[edit] Limitations

(stub)

[edit] Handshaking

(stub)

[edit] RS-422 in the Real World

(stub)

[edit] Nonstandard Connectors and Wiring

(stub)

[edit] Physical Limitations in Practice

(stub) Not a book title page. Please remove {{alphabetical}} from this page.