GAI-Tronics 12520-011 and 12520-012 Piezo Switch Assembly Replacement Kit for 300 Series Telephones User Manual
Confidentiality notice, General information

Pub. 42003-239B
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374
800-492-1212 Fax: 610-796-5954
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G A I - T R O N I C S ® C O R P O R A T I O N
A H U B B E L L C O M P A N Y
Piezo Switch Assembly Replacement Kit
for 300 Series Telephones
M
ODELS
12520-011
AND
12520-012
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information that is confidential and proprietary to GAI-Tronics. GAI-
Tronics retains all intellectual property and other rights in or to the information contained herein, and
such information may only be used in connection with the operation of your GAI-Tronics product or
system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any
third party.
General Information
The Model 12520-011 (red) and 12520-012 (black) Piezo Switch Assembly Replacement Kits are
intended for use in GAI-Tronics 300 Series Telephones equipped with the cold weather option (-003 and
-004).
The Model 12520-011 is for use on the Model 393, 393AL, 394AL, 396, 397, and 398 Series
Telephones. The Model 12520-012 is for use on the Model 394AL, 396, and 398 Series Telephones.
The replacement procedures are the same for both kits.
Kit Components
Qty. Description
Required
Tools
1
Piezo Switch Assembly
#1 Phillips screwdriver
1 O-Ring
1-1/4-inch box wrench
1 Tie
Wrap
Model 233-001 Security Screwdriver
Wire cutters
Model 393, 393AL, and 394AL Series Telephones
Removing the Old Piezo Switch Assembly
1. Use a Model 233-001 Security Screwdriver to loosen the four front cover screws. Save the screws
for re-assembly.
2. Lift the front cover assembly away from the back box.
3. Disconnect the telephone line cord and strobe wires, if applicable.