Pub. 42004-635L2
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Model 12576-115
Access Panel with VFD
Confidentiality Notice
This manua l is provide d sole ly as an operatio nal, installation, and ma inte nance guide and conta ins
sensitive business and t e chnical informatio n tha t is confidentia l and pr opri et ary 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 manu al may not be dis clos e d in any form, in whole or in pa rt, direct ly or i ndir ectly, to a ny
third pa r ty.
General Information
The Model 12576-115 Access Panel is a component of the SmartSeries system that may be used for
public address, intercommunication, and emergency notification.
How to Us e the Assembly
Application
The Model 12576-115 Access Panel is a standard EIA 19-incsh rack-mount assembly with a 120 V
ac/240 V ac power input. This power input allows the access panel to be used in almost all installations
without requiring additional line transformers.
The access panel can be used to initiate alarms and to monitor system activity via a vacuum fluorescent
display (VFD). A piezo audible alarm is included that is typically used to alert personnel of updated
system status.
The panel provides a handset equipped with an integral pressbar. The handset is used to make page
announcements and to hold two-way party line conversations.
The main components of the Model 12576-115 Access Panel are as follows:
• Vacuum fluorescent display
• 17 push buttons
• Handset
• Piezo alarm
The function of each of the 1 7 pus h buttons is software configu rable. Conta c t GAI-Tr onics for more
information on configuration of the access panel.
GAI-Tronics Corporation P.O. Box 1060, Readi ng, PA 19607-1060 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
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Model 12576-115 Acc ess Panel with VFD Page: 2 of 8
Hardware Configuration
Figure 1. Model 12576-115 Access Panel (Front View)
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Interfaces
A three-conductor ac power cord is included with the access panel. One end of the power cord is
connected to the three-prong connector located on the back of the access panel, while the other end is
plugged into a grounded ac electrical outlet. The compatible ac input voltages are 120 V ac /240 V ac
(auto-ranging), 50/60 Hz.
Data and audio c onnec tion to the system co ntrol unit is provide d by a fou r-position terminal bl ock lo c ated
at the rear of the panel. The physical connection is a single twisted-pair cable connection using two of the
four terminal points. One of the remaining two points is tied to chassis ground and may be used to
connect to a cable shield if shielded cable is preferred.
OTE: Ensur e t hat onl y one end of the cable’s shield is grounded in order to avoid ground loops. The
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remaining terminal point is not used.
A second four-position terminal block is provided for optional connections:
• Two terminals are available to connect a single 40-ohm (nominal) external speaker for page audio
monitoring.
• Two terminals are available to drive an external piezo alarm.
Contact GAI-Tronics Service Department for further information.
OTE: The piezo alarm is a polarity-sensitive device. Ensure that proper polarity is observed when
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connecting it to the access panel.
Figure 2. Model 12576-115 Access Panel Typical Connections (Rear View)
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