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Model 12600-002 and 12600-40x
Line Current Boost Circuit Assemblies
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
This manual covers the following models of the GAI-Tronics Line Current Boost Circuit Assemblies:
Model
Description
12600-002
Single Channel Line Current Boost Circuit
12600-401
4-Channel, DC-powered Line Current Boost Circuit
12600-402
8-Channel, DC-powered Line Current Boost Circuit
12600-403
4-Channel, AC-powered Line Current Boost Circuit
12600-404
8-Channel, AC-powered Line Current Boost Circuit
Telephone and PBX lines typically provide 20–35 mA or less line current to analog telephone
instruments. Several devices, including GAI-Tronics' line of RED ALERT
require additional line current to drive speakers, power optical coupling devices, and electronic devices
such as microprocessors. The additional line current provided by the LCBC provides sufficient line
current for a substantial increase in audio power to
the emergency telephone speaker.
The LCBC is designed to be installed anywhere
along the telephone line, preferably at a main or
intermediate distribution location. A CMOS
differential amplifier and two threshold compactors
are used to monitor the dc voltage across the phone
line (tip and ring).
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374
V
ISIT WWW
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
800-492-1212
.
-
.
GAI
TRONICS
COM FOR PRODUCT LITERATURE AND MANUALS
The GAI-Tronics Line Current
Boost Circuit (LCBC)
Assemblies are designed to
augment available line current
to an analog 2-wire bridged
ringing telephone line. They are
designed specifically to provide
an additional 30 mA line current
to a GAI-Tronics line-powered
emergency telephone.
®
emergency telephones,
Figure 1. Model 12600-002
Fax: 610-796-5954
Pub. 42004-433C
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Table of Contents
Related Manuals for Hubbell GAI-TRONICS 12600-002
Summary of Contents for Hubbell GAI-TRONICS 12600-002
- Page 1 Pub. 42004-433C 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 Model 12600-002 and 12600-40x Line Current Boost Circuit Assemblies Confidentiality Notice...
- Page 2 Pub. 42004-433C Model 12600-002 and 12600-40x Line Current Boost Circuit Assemblies Page: 2 of 5 When the dc voltage between tip and ring falls below 15 V dc, indicating an off-hook condition on the line, the LCBC automatically adds 30 mA current to the available line current. If the PBX provides 20 mA line current, the LCBC adds an additional line current of 30 mA for a total of 50 mA available to drive speakers and other devices.
- Page 3 Pub. 42004-433C Model 12600-002 and 12600-40x Line Current Boost Circuit Assemblies Page: 3 of 5 Installation Mounting The12600-40x LCBC units can be placed on a table or desk, or can be mounted in a standard EIA 19-inch electronic equipment rack, requiring 1U (1.75 inches) of vertical space. If the LCBC is to be placed on a table or desk, install the four stabilizing feet.
- Page 4 Pub. 42004-433C Model 12600-002 and 12600-40x Line Current Boost Circuit Assemblies Page: 4 of 5 Wiring CAUTION The dc line current (LCBC disconnected) should be less than 40 mA dc. Operation with line currents above 70 mA dc (includes LCBC 30 mA plus 40 mA line current) may damage some telephone instruments.
- Page 5 Pub. 42004-433C Model 12600-002 and 12600-40x Line Current Boost Circuit Assemblies Page: 5 of 5 Specifications Model 12600-002 Power supply..................... 48 V dc @ 250 mA (unregulated) Input voltage to plug-in power supply ..............120 V ac +10% @ 60 Hz Input power to plug-in power supply......
- Page 6 Warranty Equipment. GAI-Tronics warrants for a period of one (1) year from the date of shipment, that any GAI-Tronics equipment supplied hereunder shall be free of defects in material and workmanship, shall comply with the then-current product specifications and product literature, and if applicable, shall be fit for the purpose specified in the agreed-upon quotation or proposal document.
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