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Pub. 42004-699L2D 

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

 

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 709-901 

SmartSeries Handset/Speaker Amplifier 

T

A B L E   O F  

C

O N T E N T S

 

Confidentiality Notice .....................................................................................................................1

 

General Information .......................................................................................................................1

 

System Requirements and Limitations ................................................................................................. 1

 

Features and Functions .......................................................................................................................... 2

 

Description of Major Components ........................................................................................................ 2

 

External Components ............................................................................................................................................ 2

 

Internal Components ............................................................................................................................................. 3

 

Block Diagram ......................................................................................................................................... 4

 

Interfaces ................................................................................................................................................. 4

 

Installation ......................................................................................................................................5

 

Models 707-001-UL/EX and -EX-F07045 ............................................................................................. 5

 

Models 708-001-UL/EX, -EX-F07048, 7085-001-UL/EX, -EX-F07044, 7085-004-UL/EX and -EX-
F07049 ...................................................................................................................................................... 5

 

Models 7085-005-UL/EX and -EX-F07050 ........................................................................................... 6

 

Operation .........................................................................................................................................6

 

Handset Operation .................................................................................................................................. 6

 

Optional Features .................................................................................................................................... 7

 

Maintenance ....................................................................................................................................7

 

Fuses ......................................................................................................................................................... 7

 

Adjustments ............................................................................................................................................. 8

 

Minimum Level Adjustment ................................................................................................................................. 8

 

Offset Level Adjustment ....................................................................................................................................... 9

 

VLC Level Adjustment ......................................................................................................................................... 9

 

Internal Adjustments ............................................................................................................................ 10

 

Sidetone Volume and Handset Receiver Volume ............................................................................................... 10

 

Troubleshooting .................................................................................................................................... 11

 

How to Diagnose Assembly Faults ....................................................................................................... 12

 

Replacement Parts ................................................................................................................................ 13

 

Specifications ................................................................................................................................14

 

Содержание 709-901

Страница 1: ...ures and Functions 2 Description of Major Components 2 External Components 2 Internal Components 3 Block Diagram 4 Interfaces 4 Installation 5 Models 707 001 UL EX and EX F07045 5 Models 708 001 UL EX EX F07048 7085 001 UL EX EX F07044 7085 004 UL EX and EX F07049 5 Models 7085 005 UL EX and EX F07050 6 Operation 6 Handset Operation 6 Optional Features 7 Maintenance 7 Fuses 7 Adjustments 8 Minimum...

Страница 2: ...pports party line two way communication with other system users Serves as a control interface to optional devices such as the party line End of Line Module or the SmartSeries station Remote Terminal Unit RTU when installed into a SmartSeries RTU enclosure System Requirements and Limitations The Model 709 901 SmartSeries Handset Speaker Amplifier is designed to provide an intelligent handset for us...

Страница 3: ...nsfers data messages and audio on the system cable Description of Major Components This assembly includes external components accessible to the user as well as internal components or subassemblies ExternalComponents As shown on the bottom view of Figure 1 the assembly includes a connector for the push to page operator a hookswitch and handset connector and a connector for the RTU connection When t...

Страница 4: ...n 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 ...

Страница 5: ...set Amp FSK P PCBA has connections to the handset hookswitch and push to page operator on the front of the hazardous enclosure The PCBA s terminal connectors E1 to E7 connect to the 2 point and 6 point connectors in the bottom of the amplifier enclosure Figure 3 Block Diagram Interfaces The assembly interfaces to the system cable an external loud speaker and auxiliary devices via P1 a 16 pin conne...

Страница 6: ...losures 708 001 UL EX EX F07048 UL Listed SmartSeries Single Party Enclosures 7085 001 UL EX EX F07044 UL Listed SmartSeries Multi Party Enclosures 7085 004 UL EX EX F07049 UL Listed SmartSeries Multi Party Enclosures with Alternate Page 7085 005 UL EX EX F07050 UL Listed SmartSeries Multi Party Enclosures with RTU Control Models 707 001 UL EX and EX F07045 Ensure that the connectors mate securely...

Страница 7: ...one is heard in the receiver when either of the following occurs a higher priority page is in progress a page is attempted within one second of a previous page Handset Operation The handset allows the user to make page announcements and conduct party line conversations PageAnnouncement To make a page announcement for a party line conversation perform the following steps 1 Lift the handset from the...

Страница 8: ...nunciation for two party lines Maintenance Regular inspection and a good preventive maintenance program will increase the reliability of your GAI Tronics station The GAI Tronics Field Service Department can formulate a service contract suited to your facility s specific need for preventive maintenance If the equipment requires service contact your Regional Service Center for a return authorization...

Страница 9: ...nt sets a preset speaker level to override the normal volume control setting MinimumLevelAdjustment To set the minimum amplifier output level insert the 1 8 inch flat blade screwdriver into the User Adjustment Control and set it fully counterclockwise Listen for a single beep from the speaker indicating the speaker amplifier is in the Minimum Level Adjustment mode A continuous tone should be heard...

Страница 10: ... level adjustment After the tone is activated all page line activity is ignored until completion of the adjustments VLCLevelAdjustment When activated the VLC overrides the normal volume control setting allowing the amplifier level to change to a preset level during an emergency page The factory default setting for the VLC Level is 10 of maximum power nominally 1 2 watts NOTE The system must be equ...

Страница 11: ...ld Use a small flat blade screwdriver with an insulated shaft to make adjustments To access the controls perform the following steps 1 Loosen the four screws that secure the front panel 2 Remove the assembly from the enclosure If the enclosure is equipped with an optional EOL Module or SmartSeries station RTU be careful to not disconnect the ribbon cable on J2 of the Speaker Amp Power Supply PCBA ...

Страница 12: ...ad depends upon system configuration and system activity but several seconds is typical Speaker volume needs adjustment Use the USER ADJ control to adjust the Minimum Level Offset Level or VLC Level as appropriate Refer to the Adjustments section on page 8 Incoming handset speech level needs adjustment Use the RCVR VOL control to adjust the handset receiver volume Refer to the Adjustments section ...

Страница 13: ...PCBA Stuck Contact on Polled Device Paging Pressbar Depressed Cause The station has been in page mode longer than the configured page limit Effect Station page is cut off When the pressbar is released a restore message is sent to the MCU The station then resumes normal operation Verify that neither the handset pressbar nor the headset page switch is stuck Replace the Handset FSK P PCBA Replace the...

Страница 14: ...place Handset FSK P PCBA Polled device Cause This message is output by the MCU when it loses communication with the station This may occur if there is a fault in the page line if the station is powered down or if there is some fatal malfunction within the station Effect The MCU continues to attempt communication with the station When communication is resumed a restore message is sent to the MCU Ve...

Страница 15: ... range low gain 62 to 100 dB SPL Offset above ambient User Level Adjustment 0 to 48 dB Minimum User Level Adjustment Off 85 to 125 dB SPL Handset Amplifier Output 1 5 VRMS nominal into 33 ohm load Frequency response with 5 mVRMS input AGC on 350 to 6 500 Hz 0 3 dB ref to 1 kHz Distortion 1 5 maximum THD 1 kHz Mechanical Dimensions 7 69 H 6 75 W 3 57 D inches 195 3 171 4 90 7 mm overall Environment...

Страница 16: ... of the Contractor s personnel from the work site Re performance of services shall be Buyer s sole and exclusive remedy and in no event shall GAI Tronics warranty obligations with respect to services exceed 100 of the total cost of the services provided hereunder Warranty Periods Every claim by Buyer alleging a defect in the goods and or services provided hereunder shall be deemed waived unless su...

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