Hubbell GAI-TRONICS SmartSeries 701-902 Manual Download Page 9

Pub. 42004-658L2H 

701-902 SmartSeries

®

 Handset/Speaker Amplifier 

Page 7 of 15

 

P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-658L2H.docx 

08/19 

Minimum Level Adjustment 

The factory default setting for minimum level is 4.0 watts nominal.  To set the minimum amplifier output 
level: 

5.

 

Loosen the two screws on the GAI-Tronics nameplate and rotate it counterclockwise. 

6.

 

Insert a 1/8-inch flat blade screwdriver through the access hole and into the potentiometer. 

7.

 

Turn the user adjustment control fully counterclockwise. 

8.

 

Listen for a single beep from the speaker indicating the speaker amplifier is in the minimum level 
adjustment mode. 

If the page line is in use immediately after the beep tone is heard:

 use the page signal as the reference 

to adjust the speaker volume level. 

If the page line is inactive following the beep tone:

 a continuous tone is activated to make the 

minimum level adjustment.  All page line activity is ignored until completion of the adjustment once 
the tone is activated.  Use the test tone as a reference to adjust the speaker amplifier output level to 
the desired volume. 

7.

 

Turn the adjustment potentiometer clockwise for the desired output. 

The test tone automatically shuts off 5 seconds after the last adjustment. 

Offset Level Adjustment 

The offset level allows the output of the SmartVolume™ speaker amplifier to maintain a set difference or 

offset

 between the ambient noise level and the speaker output level. 

9.

 

Loosen the two screws on the GAI-Tronics nameplate and rotate it counterclockwise. 

10.

 

Insert a 1/8-inch flat blade screwdriver through the access hole and into the potentiometer. 

11.

 

Turn the user adjustment control fully clockwise. 

12.

 

Listen for two beep tones indicating that the station is in offset adjustment mode. 

If the page line is in use immediately after the beep tone is heard:

 use the page signal as the reference 

to adjust the speaker volume level. 

If the page line is inactive following the beep tone:

 a continuous tone is activated to make the 

minimum level adjustment.  All page line activity is ignored until completion of the adjustment once 
the tone is activated.  Use the test tone as a reference to adjust the speaker amplifier offset level to the 
desired volume. 

13.

 

Turn the adjustment potentiometer counterclockwise to the desired output level. 

The test tone automatically shuts off 5 seconds after the last adjustment. 

VLC (Volume Level Control) Adjustment (ADVANCE Systems only) 

VLC overrides the normal volume control setting.  This allows changing the amplifier level 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). 

N

OTE

:

  The system must be equipped with a SmartSeries MCU (Master Control Unit) to activate the 

VLC function. 

14.

 

Force the station into the VLC mode by executing a page from a station programmed by the MCU to 
activate the VLC function. 

Summary of Contents for GAI-TRONICS SmartSeries 701-902

Page 1: ...tallation 4 Minimum Level Adjustment 4 Offset Level Adjustment 5 VLC Volume Level Control Adjustment ADVANCE Systems only 5 Internal Adjustments 6 Station Address 6 Handset Receiver Volume 6 Sidetone...

Page 2: ...1374 800 492 1212 Fax 610 796 5954 VISIT WWW GAI TRONICS COM FOR PRODUCT LITERATURE AND MANUALS Fuses 12 Troubleshooting 12 How to Diagnose Assembly Faults 13 Specifications 15 Electrical 15 Speaker...

Page 3: ...The No 701 902 SmartSeries Handset Speaker Amplifier provides the following functions one way page announcements over system speakers amplifies broadcast page announcements over the station s speaker...

Page 4: ...y when the handset is removed from or placed in the cradle The user level adjustment control is located under the GAI Tronics nameplate to the right of the cradle Figure 1 Front View Internal Componen...

Page 5: ...speaker amplifier power supply PCBA contains the low voltage power supplies and the speaker amplifier circuitry Connector J1A and J1B on the speaker amplifier power supply PCBA connects regulated 5 V...

Page 6: ...tly into any standard GAI Tronics 700 series enclosure It also plugs into the following specialized SmartSeries enclosures SmartSeries station RTU enclosure EPL Emergency Party Line enclosure EOL End...

Page 7: ...ting that the station is in offset adjustment mode If the page line is in use immediately after the beep tone is heard use the page signal as the reference to adjust the speaker volume level If the pa...

Page 8: ...stem Set the address to 04 default if the SmartSeries PCBA is installed in a system without an ADVANCE head end NOTE The following level adjustments are not typically required Handset ReceiverVolume U...

Page 9: ...to maintain a set difference or offset between the ambient noise level and the speaker output level 9 Loosen the two screws on the GAI Tronics nameplate and rotate it counterclockwise 10 Insert a 1 8...

Page 10: ...F A small arrow on each switch indicates the setting The station address is determined by the high address setting followed by the low address setting For example to assign an address of 05 the high...

Page 11: ...ion PageAnnouncement To make a page announcement 1 Lift the handset from the cradle 2 Select an available party line using the five position rotary selector switch if party line conversation is desire...

Page 12: ...set pressbar and wait for a response on the party line if requested To respond to a page 8 Pick up a station handset 9 Turn the party line selector switch to the requested party line 10 Converse with...

Page 13: ...issued if service is required Equipment must be shipped prepaid to GAI Tronics with a return authorization number and a purchase order number Repairs or a replacement will be made in accordance with...

Page 14: ...ng the assembly perform the following steps 1 Set the address on the new assembly to 0 3 2 Plug the assembly into the enclosure 3 After about 10 seconds remove the assembly The station is now set up t...

Page 15: ...imes Where x is the decimal number of times the watchdog timer has reset the processor Cause The watchdog timer has forced the processor to reset This occurs when the reset pins J2 on the Handset FSK...

Page 16: ...The station continues measuring speaker ambient noise When acceptable noise levels are subsequently measured a restore message is sent to the MCU Verify that the speaker wire is connected and intact...

Page 17: ...dB Minimum user level adjustment off 85 to 125 dB SPL Handset Amplifier Output 1 5 V RMS nominal into 33 load Frequency response with 5 mV RMS input AGC on 350 6 500 Hz 0 3 dB ref to 1 kHz Distortion...

Page 18: ...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 e...

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