Hubbell GAI-TRONICS 701-804 Скачать руководство пользователя страница 13

Pub.  42004-605L2B

Model 701-804 SmartSeries

®

 Handset Station with Auxiliary Jack

Page:  13 of 16

\\s_eng\gtcproddocs\standard ioms - current release\42004 instr. manuals\42004-605l2b.doc
03/04

Offset Level

The Offset Level adjustment causes the speaker amplifier to maintain a set difference between the
ambient level and the speaker output level.  The SmartVolume™ feature measures the ambient noise at
the station’s speaker and adds the Offset Level to set the speaker amplifier gain.  This keeps page
announcements louder than the ambient noise.  The Offset Level can be set from 0 dB (the speaker output
level is the same as the ambient level) to 49 dB.

A speaker should be set for 6 to 10 dB louder than the ambient noise, so the factory default is 9 dB.

Note

: There must be enough ambient noise for the station to sense.  The exact level depends upon the

speaker type, but it is typically approximately 80 dB.  To adjust the Offset Level as follows:

1.

 

Turn 

USER ADJ

 fully clockwise and wait to hear two beeps over the station’s speaker.

This switches the station into the Offset Level adjustment mode.  If there is an audio signal on the
page line when the station enters this mode, you hear it over the speaker.  Otherwise, you hear a
station-generated test tone.

2.

 

Turn 

USER ADJ

 counterclockwise to the desired speaker volume level.

The station remains in the Offset Level adjustment mode for as long as USER ADJ is varying.  After
USER ADJ has remained stable for five seconds, the station returns to its normal operating mode.

VLC Level

The VLC Level adjustment sets the speaker amplifier gain for the Page Priority VLC feature to provide
an emergency output level.  The amplifier can be set from minimum to full output (12 watts into 8 ohms)
in 100 discrete steps, or to no output.  The factory default is step 10, but the System VLC Control feature
is disabled.  To adjust the VLC Level, perform the following steps:

1.

 

Have an assistant make a page from another station that forces the station being adjusted into VLC
mode.

2.

 

Turn 

USER ADJ

 fully counterclockwise and wait to hear two beeps over the station’s speaker.  This

switches the station into the VLC Level adjustment mode.

3.

 

Turn 

USER

 

ADJ

 clockwise to the desired speaker volume level.  The station remains in the VLC

Level adjustment mode for as long as 

USER ADJ

 is varying.  After 

USER ADJ

 has remained stable

for five seconds, the station returns to its normal operating mode.

Internal Adjustments

Although they typically require no adjustments, the following volume levels can be set with internal
controls: Audio Transmit Level, Handset Receiver Volume, Auxiliary Receiver Volume, and Tone
Volume.

To make an adjustment, it is necessary to remove the assembly from its enclosure and make a temporary
connection between the assembly and the enclosure.  Refer to Figure 4 for the reference numbers and
locations of the adjustment controls.

Turn a control clockwise to increase the volume or threshold; turn it counterclockwise to decrease the
volume or threshold.  Use a small flat-blade screwdriver with an insulated shaft to make adjustments.

Содержание GAI-TRONICS 701-804

Страница 1: ...eral Information In addition to providing standard Page Party operation the Model 701 804 SmartSeries Handset Speaker Amplifier with Auxiliary Jack supports the attachment of an auxiliary headset and...

Страница 2: ...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 micro controller within the assembly To th...

Страница 3: ...2b doc 03 04 InternalComponents The Model 701 804 contains the following components or subassemblies in the chassis that is affixed to the front panel Refer to Figure 2 Ref 1 Bias Power Supply PCBA Re...

Страница 4: ...he Receiver Isolation PCBA via J2 Interfaces The assembly interfaces to the system cable an external loudspeaker and auxiliary devices via P1 a 16 pin connector All connections to the system cable are...

Страница 5: ...pplication requires the GAI Tronics Model 10401 201 Headset Microphone Assembly and Model 10416 103 Extension Cable The auxiliary headset allows the user to make one way page announcements and conduct...

Страница 6: ...ate party line 2 Plug the auxiliary headset cable assembly into the auxiliary jack on the front panel 3 Conduct your conversation When you are done unplug the auxiliary headset cable assembly Optional...

Страница 7: ...e length of time the handset headset can be off hook before disabling party line communication Default setting 8 minutes Page Duration Limit the length of time the station can be in page mode before r...

Страница 8: ...rrect address 5 Plug the assembly back into the enclosure The station initiates a configuration download request The time required to complete the download depends upon system configuration and system...

Страница 9: ...imes the watchdog timer has reset the processor Cause The watchdog timer has forced the processor to reset This occurs when the reset pins J4 on the Base 16 PCBA are temporarily shorted or when the wa...

Страница 10: ...room Effect 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...

Страница 11: ...3 Remove corrosion from terminals There are two replaceable fuses used in the assembly Both are mounted on the Base 16 PCBA as shown in Figure 4 and both limit the amount of current from the 120 V ac...

Страница 12: ...not remove the 2 screws that secure the nameplate 2 Pivot the nameplate counterclockwise exposing the access hole A guide located behind the access hole helps to direct the screwdriver to the USER AD...

Страница 13: ...ed stable for five seconds the station returns to its normal operating mode VLC Level The VLC Level adjustment sets the speaker amplifier gain for the Page Priority VLC feature to provide an emergency...

Страница 14: ...d RCVR VOL Ref 2 on the Handset Amplifier PCBA to adjust to the desired level the handset receiver volume for voice signals from a party line Auxiliary Receiver Volume Use the Auxiliary Receiver Volum...

Страница 15: ...Volume Monitor range low gain 62 to 100 dB SPL Offset above ambient User Level Adjustment 0 to 49 dB Minimum User Level Adjustment Off 85 to 125 dB SPL Handset Amplifier Output 1 5 VRMS nominal into 3...

Страница 16: ...Nameplate Kit 12530 001 Transformer Connector Subassembly 12555 001 FSK PCBA Kit 12557 001 Base 16 PCBA Kit 12558 001 Power Supply PCBA Kit 13204 002 Receiver Cap 51008 003 Pressbar Switch 69072 001 A...

Страница 17: ...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 services provided hereunder Warranty Periods Every...

Отзывы: