GAI-Tronics 701-902 SmartSeries, 751-905 Smart SERIES User Manual
Pub. 42004-658L2G
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
701-902 SmartSeries®
Handset/Speaker Amplifier
T ABLE OF C ONTENTS
Confidentiality Notice .....................................................................................................................1
General Information .......................................................................................................................1
Product Overview ................................................................................................................................... 1
System Requirements and Limitations ................................................................................................. 1
Features and Functions .......................................................................................................................... 1
Description of Major Components ........................................................................................................ 2
External Components ............................................................................................................................................ 2
Internal Components ............................................................................................................................................. 3
Block Diagram ......................................................................................................................................... 4
Interfaces ................................................................................................................................................. 5
Installation ......................................................................................................................................5
Operation .........................................................................................................................................6
Page Announcement ............................................................................................................................... 6
Party-Line Conversation ........................................................................................................................ 6
Optional Features .................................................................................................................................... 7
Maintenance ....................................................................................................................................7
Adjustments ............................................................................................................................................. 8
Minimum Level Adjustment ................................................................................................................................. 8
Offset Level Adjustment ....................................................................................................................................... 8
VLC Level Adjustment ......................................................................................................................................... 8
Internal Adjustments .............................................................................................................................. 9
Sidetone Volume and Handset Receiver Volume ................................................................................................. 9
Troubleshooting .................................................................................................................................... 10
How to Diagnose Assembly Faults ....................................................................................................... 11
Specifications ................................................................................................................................13
Replacement Parts ................................................................................................................................ 14
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
PUB. 42004-658L2G
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
701-902 SmartSeries®
Handset/Speaker Amplifier
Confidential ity 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
Product Overview
The 701-902 SmartSeries® Handset/Speaker Amplifier provides the following features:
Supports one-way page announcements over system speakers.
Serves as an amplifier to broadcast page announcements over the station’s speaker.
Supports party-line (two-way) communication with other system users.
Serves as a control interface to optional devices such as the remote terminal unit (RTU) when
installed into a SmartSeries
®
RTU enclosure.
System Requirements and Limitations
The 701-902 SmartSeries® Handset/Speaker Amplifier is designed to provide an intelligent handset for
use on the GAI-Tronics system cable in either a standard Page/Party
®
system or an ADVANCE system.
Features and Functions
Provides page and party line
communications from the integral handset.
Measures the ambient noise and adjust the
speaker output level accordingly.
Monitors and controls the handset
Supervises the local speaker.
Supports an optional SmartSeries
monitors and supervises input and output devices
Supports an optional party line End-of-Line
module, which supervises party line 1.
Transfers data messages and audio on the system
cable.
®
station RTU that
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
Pub. 42004-658L2G
701-902
SMARTSERIES® HANDSET/SPEAKER AMPLIFIER PAGE 2 of 14
Description of Major Components
The 701-902 Handset/Speaker Amplifier includes external components accessible to the user as well as
internal components or subassemblies.
External Components
As shown from the front in Figure 1, this assembly includes a handset and cradle. When the handset is
lifted from the cradle or replaced in the cradle, a hookswitch (a magnetic reed switch) in the cradle signals
the appropriate status to the microcontroller within the assembly.
To the right of the cradle, the GAI-Tronics nameplate conceals the User Level Adjustment control.
f:\standard ioms - current release\42004 instr. man uals\42004-658l2g.doc
03/12
Figure 1. Front View
Pub. 42004-658L2G
701-902
Internal Components
SMARTSERIES® HANDSET/SPEAKER AMPLIFIER PAGE 3 of 14
As shown from the side in Figure 2, the 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
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. Side View
f:\standard ioms - current release\42004 instr. man uals\42004-658l2g.doc
03/12
701-902
SMARTSERIES® HANDSET/SPEAKER AMPLIFIER PAGE 4 of 14
Block Diagram
Pub. 42004-658L2G
The P1 connector on the back of the 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 Speaker
Amp/Power Supply PCBA contains the low voltage power supplies and the speaker amplifier circuitry.
Connector J1A and J1B on the 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 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.
Figure 3. Block Diagram
f:\standard ioms - current release\42004 instr. man uals\42004-658l2g.doc
03/12
Loading...