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ATT System 25 Installation And Maintenance Manual

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    Page 1 AT&T AT&T System 25 Installation and Maintenance Manual 555-540-103 B November 1995
    Page 2 ©1989 AT&T All Rights Reserved Printed in USA TO ORDER COPIES OF THIS DOCUMENT REFER TO DOCUMENT NUMBER 555-540-103 Contact: Your AT&T sales representative, or Call: 800-432-6600, Monday through Friday between 7:30 am and 6:00 pm EST, or In Canada call: 800-255-1242 Write: AT&T Customer Information 2855 North Franklin Road P.O. Box 19901 Indianapolis, Indiana 42619 Every effort was made to ensure that complete and accurate at the time of subject to change. This document will changes.Center the...
    Page 3 DANGER Do not open the fan assembly or remove rear cabinet cover before unplugging the cabinet from the electrical outlet. Wait at least five minutes after unplugging the power cord before removing the rear cover or power supply. The AT&T System 25 cabinets are not user serviceable. Some voltages inside the cabinets are hazardous. This equipment is to be serviced only by qualified technicians. CUSTOMER WARNING The Installation and Maintenance Manual is designed for use by qualified service technicians...
    Page 4 THE FOLLOWING SYMBOLS AND PICTOGRAPHS APPEAR ON THE EQUIPMENT SYMBOL The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions ELECTRICAL SHOCK Warns of the danger of electrical shock from hazardous voltages present within the control unit Warns of the risk of fire if the air filter is not in place b
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