GAI-Tronics 723-901 User Manual
Pub. 42004-326C
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Model 723-901
®
SmartSeries
Confidential ity Notice
This manual is provided solely as an operation, 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
Product Overview
The Model 723-901 SmartSeries® Remote Subset Amplifier is an intelligent handset amplifier, speaker
amplifier, and FSK modem intended for use in GAI-Tronics Page/Party
The amplifier is an integral part of GAI-Tronics desktop, desk-edge, and flush-mount stations. It has
been designed to be remotely mounted with the enclosure, allowing the associated subsets to be mounted
on a desktop, on the edge of a desk, or flush mounted. The amplifier is not designed for outdoor use and
must be mounted at an indoor location.
Remote Subset Amplifier
®
and S SmartSeries® systems.
WARNING
Class I, Div. 2 usage.
Explosion Hazard: Substitution of components may impair suitability for
System Requ irements and Limitatio ns
For proper operation, the Model 723-901 SmartSeries® Remote Subset Amplifier must be installed in the
Model 7245-004 Amplifier Enclosure with auxiliary inputs, and with a subset from the following list for
proper operation:
Single Party Subsets: Multi-Party Subsets:
Model 726-101 Desktop Subset Model 7265-101 Desktop Subset (five-party)
Model 711-102 Desk-Edge Subset Model 7115-102 Desk-Edge Subset (five-party)
Model 716-102 Flush-Mount Subset Model 7165-102 Flush-Mount Subset (five-party)
The SmartVolume feature is not supported for Model 7265-101 or Model 726-101 Subsets. Also, the
SmartVolume feature is not available for speakers equipped with L-Pads or for multiple speaker
applications. The Model 723-901 Remote Amplifier is designed solely for use with the magnetic
hookswitch subsets listed above. Subsets containing an RF hookswitch are not supported.
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
V
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
®
Model 723-901 SmartSeries
Remote Subset Amplifier Page 2 of 13
Fea tures and Functions
Pub. 42004-326C
The Model 723-901 Remote Subset Amplifier provides the following features when installed in a
SmartSeries
Enables one-way paging from the remote
subset handset. Priority Page feature
enables important messages to override
operational communication
Enables two-way party line communication
from the remote subset handset
Monitors and controls off-hook and page
status of the remote subset handset. Limits
off-hook and page durations to prevent open
®
ADVANCE system:
SmartVolume™ feature measures the ambient
noise and automatically adjusts the speaker output
level (desk-edge and flush-mount stations only)
when used with externally connected speaker
Contains page amplification to broadcast
announcements over the station’s speaker
Monitors and reports problems with handset
amplifier, the speaker amplifier, and speaker voice
coil to the MCU
microphone and nuisance page problems
Supervises the externally connected speaker
(desk-edge and flush-mount stations only)
Monitors and reports the status of the auxiliary
inputs
Optional Features
The following features are available as options to the standard configuration of a station used in a
SmartSeries
®
ADVANCE system and installed in a special enclosure. Contact the GAI-Tronics Field
Service Department at (800) 492-1212 inside the USA or (610) 777-1374 outside the USA for further
information about these features.
The Selected Page Destination feature allows the manual selection of up to four page destinations.
The Supervised Input feature allows the monitoring and supervision of one or two initiating device
circuits (IDCs), initiating an alarm when the supervised device is activated.
The Power Relay Module provides a relay contact output, typically to switch power to a visual
signaling device, for directed or relay group operation. Supervision of the controlled device’s cable
can also be enabled.
The Station Emergency Party Line feature supports annunciation for two party lines.
f:\standard ioms - current release\42004 instr. man uals\42004-326c.doc
03/12
Pub. 42004-326C
Model 723-901 SmartSeries
®
Remote Subset Amplifier Page 3 of 13
Description of Major Components
The Model 723-901 Remote Subset Amplifier’s major external and internal components are described
below.
External Components
User Level Adjustment: This assembly contains a User Level Adjustment that is accessible beneath the
nameplate on the front panel. See Figure 1. The User Level Adjustment controls the Minimum Speaker
Output Level, the Speaker Offset Level (dB above ambient), and the Volume Level Control (VLC).
Refer to the Maintenance section for the adjustment procedures.
Figure 1. Remote Subset Amplifier - Front Outline and Side View
f:\standard ioms - current release\42004 instr. man uals\42004-326c.doc
03/12
Pub. 42004-326C
Model 723-901 SmartSeries
Internal Components
®
Remote Subset Amplifier Page 4 of 13
As shown from the side in Figure 2, the Model 723-901 Remote Subset Amplifier assembly contains the
following components or subassemblies:
Chassis
Front panel affixed to the front of the chassis
Handset Amp/FSK/P PCBA (printed circuit board assembly) (Ref. 14) affixed to the rear of the
front panel
Remote Speaker Amp/Power Supply PCBA (Ref. 13) affixed to the rear of the chassis, with a plug
(P1) at the top, pointing to the rear
Figure 2. Remote Subset Amplifier Outline Detail
f:\standard ioms - current release\42004 instr. man uals\42004-326c.doc
03/12
Model 723-901 SmartSeries
Block Diagram
®
Remote Subset Amplifier Page 5 of 13
Pub. 42004-326C
The P1 connector on the back of the Remote Speaker Amp/Power Supply PCBA plugs into a socket in an
enclosure connected to the system cable, accessing the Page/Party
®
lines and ac power. The Remote
Speaker Amp/Power Supply PCBA contains the low voltage power supplies and the speaker amplifier
circuitry.
Connector J1A and J1B on the Remote Speaker Amp/Power Supply connects regulated +5 V dc, +/−15 V
dc, and V
voltages along with control, monitoring, and line signals to the J1A and J1B on the Handset
RLY
Amp/FSK/P PCBA. Connector J2 of the Remote Speaker Amp/Power Supply PCBA connects to
optional external devices.
The Handset Amp/FSK/P PCBA has connections to the handset and the hookswitch via spade terminal
connectors E1 to E7, and it connects via J3 on the Remote Speaker Amp/Power Supply PCBA.
Figure 3. Remote Subset Amplifier Block Diagram
f:\standard ioms - current release\42004 instr. man uals\42004-326c.doc
03/12
Loading...