Peripheral Interface Guide

Service Technical Procedures

This Apple manual was written, edited, and composed on Apple Macintosh computers. Proof and final pages were created on Apple LaserWriter printers. The following software programs were used in the creation of the Peripheral Interface Guide: Aldus® Freehand™, Aldus Pagemaker®, Tycho™, and Microsoft® Word.

Apple IIGs, Apple CD SC AppleTalk, DuoDisk, ImageWriter, LaserWriter, Lisa, Macintosh, Silentype, Apple, and the Apple logo are registered trademarks of Apple Computer, Inc. Apple Color, Apple Desktop Bus, AppleFax, AppleLine, EtherTalk, FDHD, LocalTalk, TokenTalk, and UniDisk are trademarks of Apple Computer, Inc.

Scribe is a registered trademark licensed to Apple Computer, Inc.

TRW is the name and mark of TRW, Inc.

LaserJet Plus is a trademark of Hewlett-Packard, Inc.

Ethernet is a registered trademark of Xerox Corporation. Diablo is a trademark of Xerox Corporation.

PostScript is a registered trademark of Adobe Systems Incorporated.

The Peripberal Interface Guide is a product of the Service Technical Publications Department. The PIG development team includes the following persons:

Lead Writer: Dan Fischler

Editors: Hunter Greer and Kay Tierney

Graphic Designer: Steve Rancourt

Production: Katherine Yagel

Apple Computer, Inc., 1991. No portion of this document may be reproduced in any form without the written permission of Apple Computer, Inc.

Peripheral Interface Guide Introduction

Welcome to the seventh edition of the Apple $ ^{\circledR} $ Peripheral Interface Guide.

This guide contains interface information—pin-outs, switch settings, cabling requirements, and diagrams of interface ports—for Apple computers, interface cards, and peripherals. This information will help you connect Apple and non-Apple peripherals to Apple computers. The information will also be useful in troubleshooting situations where interface problems may be involved.

The Peripheral Interface Guide contains the following information:

Macintosh, Apple II, Apple III, & Lisa/Macintosh XL Computers

The first three sections contain the specifications for all built-in interface and interface card connectors for the Macintosh, Apple II, Apple III, and Lisa/Macintosh XL families of computers. Each section covers built-in interfaces first, followed by interface cards. Illustrations at the beginning of each section show the locations of the built-in interface connectors. The guide contains pin numbers, signal mnemonics, signal descriptions, and connector types for all connectors. For interface cards that contain option switches, a table lists the functions of the switches and how they should be set to produce various operating characteristics. Any special information related to an interface is noted. Peripheral connection tables at the end of each section indicate cable requirements for connecting compatible peripherals to each computer.

Peripherals

This section covers Apple peripheral devices. Devices are arranged by category—Laser Printers, Non-Laser Printers, Modems and Communications, and Miscellaneous. The pin numbers, signal mnemonics, signal descriptions, and connector types are listed for each device. Option switch functions and settings are listed, with the default (factory) settings shown in bold type.

Cables

Apple peripheral cables with their pin connections are included here. Each cable chart lists the devices that can be connected with that cable. This section also includes diagrams of the various connectors used.

Macintosh Family Computers Table of Contents

Contents
Page
Introduction
3
Computer Port Locations
4
Computer Ports
6
Modem and Printer Connectors – DE-9
6
Modem and Printer Connectors – Mini DIN-8
7
SCSI Connector (Pins 1-12)
8
SCSI Connector (Pins 13-25)
9
Apple Desktop Bus Connector
10
Keyboard Connector
11
Mouse Connector
11
Audio Input Connector
12
Audio Output Connector – Monaural
12
Audio Output Connector – Stereo
12
External Disk Drive Connector
13
External Video Connector
14
External Video Connector – Macintosh Portable
14
Interface Cards
16
Macintosh Display Cards 4/8, 8/24, and 8/24•GC
16
Macintosh II High-Resolution and 1-bit Monochrome Video Cards
17
Macintosh II Portrait Display and Two-Page Monochrome Monitor Video Cards (Current Version)
18
Macintosh II Portrait Display and Two-Page Monochrome Monitor Video Cards (Obsolete Version)
19
EtherTalk Interface and EtherTalk NB Cards
20
TokenTalk NB Interface Card
20
Coax/Twinax Interface Card – Coax Connector
21
Coax/Twinax Interface Card – Twinax Connector
21
Serial NB Interface Card (Pins 1-20)
22
Serial NB Interface Card (Pins 21-40)
23
Serial NB Interface Card (Pins 41-62)
24

Macintosh Family Computers Table of Contents

Contents
Peripheral Connections 25
Macintosh Plus and Later Peripheral Connections 25
Macintosh 128K, 512K, and 512K enhanced Peripheral Connections 26

Macintosh Family Computers Introduction

This section contains the specifications for all the built-in interfaces and interface card connectors for the Macintosh family of computers. Built-in interfaces are covered first, followed by interface cards. Illustrations at the beginning of the section show the locations of the built-in interface connectors.

Notes:

A slash (/) after the signal name indicates that the signal is valid when the signal is low.

The connector specified is for the cable end, not the computer port.

In the peripheral connections tables, accessory kit part numbers followed by an asterisk (*) include items in addition to the cable (software and/or manuals, for example).

Macintosh Family Computers Computer Port Locations

Macintosh 128K, 512K, 512K enhanced