Installation guide

Table of Contents

Page

Introduction

Functional Overview

Isolating and Correcting Troubles

A. Trouble on One Telephone

A1-1

A2-1

A3-1

A4-1

A5-1

A6-1

A7-1

1. Ringing

2. Dialing

3. Hearing

4. Lights

5. Features

6. Accessories

7. Miscellaneous

B. Trouble on Several Telephones

1. Ringing

2. Dialing

3. Hearing

4. Lights

5. Features

6. Accessories

7. Entire System Down

8. Miscellaneous

B1-1

B2-1

B3-1

B4-1

B5-1

B6-1

B7-1

B8-1

CIBs

Index

NOTE:

Pages within the individual trouble sections are numbered in an unusual way to make

this manual easy to update. In page number A1-4, for instance, the A indicates the

section--"A. Trouble on One Telephone." The 1 indicates the first trouble category

within that section--Ringing. The 4 indicates the fourth page of ringing symptoms.

Refer to the letters and numbers on the tab dividers for help in finding page numbers

listed in the index.