Contacta STS-K002L-G-01 Operation manual

Installation &
User Guide
June 2020
Speech Transfer System
Dual Surface Mounted System
STS-K002L-G-01 | STS-K002L-B-01

2
Contents
Product Overview
Components
Installation Instructions
 AmplierInstallation
Microphone & Speaker Installation
Hearing Loop Installation
 AmplierSetup
Using the System
Troubleshooting
3
3
4
5
6
7
8
10
12
Contactahasapolicyofcontinuousproductdevelopment,andthereforesmallspecication
changesmaynotbereectedinthismanual.Images,labels,packaging,accessoriesandproduct
coloursaresubjecttochangewithoutnotice.

3
Product Overview
Components
Speech transfer systems provide assistance for clear communication where
normal speech is impaired by use of glass, a security screen or other similar
barriers.
There is a hearing loop facility included, providing additional assistance for
hearingdevicewearers.
1. Installation and User Manual
2. Amplier
3. Hearing Loop Sticker
4. IEC Lead
5. Power Supply
6. HearingLoopAerial
7. MountingBracket
8. SurfaceMountedSpeakerand
Microphone x 2
Fixing Kit:
• Adhesive Clip x 10
• No.6x1/2”CountersunkScrewsx15
• P-Clips x 6
4
36
7
5
2
1
General Components
8

4
Werecommendthatinstallationiscarriedoutbyaqualiedengineer,
adheringtorelevantstandards.
Checkthecontentsoftheboxtofamiliariseyourselfwiththecomponents.
Thestamicrophoneandampliershouldbeinstalledonthestasideofthe
counter.Thecustomerspeakerandmicrophonekitsshouldbeinstalledon
thecustomersideofthecounter.
Follow all relevant instructions in the following order:
1. AmplierInstallation(seepage5).
1. Microphone&SpeakerInstallation(seepage6).
2. HearingLoopInstallation(seepage7).
3. AmplierSetup(seepage8).
4. UsingtheSystem(seepage10).
Installation Instructions
A basic toolkit recommended to install the system will include:
• Pliers
• Tape Measure
• Pencil or Marker Pen
• Cable Ties
• Electrical Insulation Tape
• Trunking
• Screwdrivers(FlatorBlade2.5mm
andPhillipsHeadPH2)
• Battery or Mains Drill
• Drillbits: 2mm, 3mm, 5mm and 7mm
• Allen Key Set
• CableTackingGun(10mm)
• WireCutters/Strippers
Recommended Tools

5
1. Placetheamplierunderthestacounter,ensuringthatitwillnot
obstructstawhentheyaresitting.
2. Markthefourxingpointsfortheamplierunderthecounter.
3. Drillandxtheamplierinplaceusingthesuppliedscrews.
4. Installtheamplier’spowersupplyclosetoapowersocketoutletusing
thesuppliedmountingbracketandxingscrews.
Fixing points
Amplier Installation
Amplier Connections
After all relevant components have been installed, connect all green plugs to
thesocketsattherearoftheamplierfollowingthelayoutdetailedbelow.
LED connection oralerttone(ifrequired)
CondenceLEDtoconrmthesystemispowered
oranalerttonefortheattentionofsta
Stamicrophoneconnection
Customer microphone connection
CondenceLED(ifrequired)forstatusalerts
and fault detection
Hearing loop aerial
Line in connection for
external audio source
Staspeakerconnection
Customer speaker connection
Power input
connection
Use power supply
through ground
supply only
AmplierInstallation

6
Microphone & Speaker Installation
1. Place the speaker and microphone pods on the customer side of the
countertop.
2. Disassemble the speaker and microphone pods on by undoing the screws
andremovingthehousing.
Surface Mounted Kit
3. Placethemountingbracketsadjacenttoeithersideofthe
pass-throughtray,atleast2-3mmawayfromthescreen.
4. Marktheeighttotalxingpointsandtwocableholestobedrilled.
5. Ensuretherewillbeaccesstoretrievethecablesanddrilltheholes.
6. Fixthespeakerandmicrophonepodstothecounter,andfeedthewires
throughthecablemanagementholes.
7. Retthehousingwithpreviouslyremovedscrews.
Fixing points
Housing
xingpoints
Cable holes
8. Repeatsteps1to7onthestasideofthecountertop.
9. Routeallcablingneatlytotheamplierlocation.

7
Theaerialshouldbexedunderthedesk-toporcountercentrallyonthe
customer side, one half mounted horizontally under the counter and the other
halfmountedvertically,facingthecustomer(asintherstscenariobelow).
Position the aerial under the counter using either the provided P-clips
oranotherxingmethodofyourchoice.Seethediagrambelowfor
recommendedpositioning.
Aistheoptimumlayoutforacounterhearingloop.
B and C are acceptable only if A is not possible and the layout is aligned so
thatthemagneticeldwillbedirectedtowardsuser’sheadheights.
Ensureallhearingloopsignageisdisplayedclearly.
XX
Hearing Loop Installation
A B C

8
AmplierSetup
Ouramplierprovidesfullopenduplexcommunicationandiscompatible
withallofourspeechtransfersystems.Itfeaturesindividualdisplaysforsta
orcustomeradjustmentsandindividualfaultlightsforeasyfaultdiagnosis.
Vol In Status
8
7
6
5
4
3
2
1
Vol Out STS-A31
CO2
contacta
Overview of Front Panel Buttons
Volume In
Increase and decrease
Volume Out
Increase and decrease
Settings
On/O
Vol In Status
8
7
6
5
4
3
2
1
Vol Out STS-A31
CO2
contacta
Vol In Status
8 7 6 5 4 3 2 1
Vol Out STS-A31
CO2
contacta
Vol In Status
8 7 6 5 4 3 2 1
Vol Out STS-A31
CO2
contacta
Save and exit engineers mode
Move to the next setup area
Beforeenteringengineersmode,cyclethepower.Todothiseither:
• Switchthepoweroatthewallsocketandbackonagain,
or,
• Removethepowerconnectorandre-insertit
To enter engineers mode, simultaneously press and release the following
buttons within 20 seconds of cycling the power:
• Settings button
• Volume In increase button
• Volume Out increase button
Theon/oandsettingsbuttonsinengineersmodeoperateasfollows:
Please note:
• Saveandexitengineersmodeaftermakinganyadjustments.
• Theamplierwillautomaticallyexitengineersmodewithoutsavingifno
buttonsarepressedfor2minutes.
Engineer’s Mode

9
Setup Area 3: Hearing Loop Drive Adjustment (LED 3 ashes)
Increase drive
Decrease drive
Vol In Status
8
7
6
5
4
3
2
1
Vol Out STS-A31
CO2
contacta
Vol In Status
8
7
6
5
4
3
2
1
Vol Out STS-A31
CO2
contacta
Vol In Status
8
7
6
5
4
3
2
1
Vol Out STS-A31
CO2
contacta
LEDs illuminate to
display loop drive
voltage
Iftheamplierdoesnothavealoopattached,turnotheredloopfaultLED
8byadjustingthedrivedowntoo.
Please note: Iftheamplierdetectsanerrorinitssettingsmemoryitwill
restoreitselftofactorydefaultsettings.
Whilstinengineersmode,thereare3editablesetupareas.Youwillalways
entersetuparea1rst.ThegreenVolumeInLEDbarwillashtoindicate
whichsetupareayouarein.
Setup Areas
Setup Area 2: Ducking Adjustment (LED 2 ashes)
Setup Area 1: Maximum Volume Adjustment (LED 1 ashes)
Increase maximum
stavolumelevel
Decrease maximum
stavolumelevel
Increase maximum
customer volume level
Decrease maximum
customer volume level
Increase
ducking level
Decrease
ducking level
Ducking on
(VolOutLED1illuminates)
Duckingo
(VolOutLED1turnso)

10
Whenpoweredandinnormaloperationalmodetheamplierwilldisplay
VolumeInLED1assteadygreen.
WhentheamplierisswitchedousingtheOn/O button, audio is muted
andLEDsarenotilluminated;pressanybuttontoturntheamplieronagain.
To adjust the sta volume level:
• PressandholdtheVolumeIn(+)or(-)buttonstoincreaseordecreasethe
level.ThecorrespondingLEDbarwillshowthevolumesetting.
To adjust the customer volume level:
• PressandholdtheVolumeOut(+)or(-)buttonstoincreaseordecrease
thelevel.ThecorrespondingLEDbarwillshowthevolumesetting.
Fault Diagnosis LEDs
• Volume In LED 8 will stay red if there is a
faultwiththestamicrophone.
• Volume Out LED 8 will stay red if there is a
faultwiththecustomermicrophone.
• VolumeInLED8willashredifthereisa
faultwiththeloop(i.e.abrokenaerial).
Using the System
For best possible performance:
1. Ensurethecustomerandstavolumesareturnedcompletelydown.
2. Adjuststavolume(VolumeIn)toacomfortablelevel.
3. Increasecustomervolume(VolumeOut)untilfeedbackisheard.
4. Decreasecustomervolume(VolumeOut)untilfeedbackisjusteliminated.
Checkthattheamplierisfullyfunctionalbyensuringthered‘fault’light
isNOTdisplaying.
5. Ifthereisinsuicientvolumeevenafteryouhaveadjustedthevolume
controls,enterengineersmodeandraisemaxvolumesettings.Exit
engineersmodeandrepeatinitialsetup.
6. Thesystemisnowreadytouse.

11
Factory Default Settings
Toreturntheamplierthefactorydefaultsettings:
1. Unplugthepowersupplyandthenreconnectit.
2. PresstheOn/ObuttonandVolumeIn(-)buttontogether,thenrelease.
3. The Volume In LED bar will have all LEDs illuminated, while the Volume
OutLEDbarwilldisplaythermwarerevisionnumberinaxedpattern
ofLEDs.Thisindicatesthatdefaultsettingshavebeenrestored.

12
Symptom Possible Fault Action
There is no
power
detected
through the
amplier (and
there is power
at the socket).
1)Powerjacknotpluggedinor
faulty.
2)Plugfusehasblown.
3)Faultypowersupplyunit.
4)Faultyamplier.
1)Checkpowerjackisrmlyplugged
in.
2)Replacefuse.Ifitblowsagain,
replacethepowersupplyunit.
3)Replacethepowersupplyunit.
4)Replaceamplier.
The red LED is
illuminated on
front panel.
1) Constant red LED:
Staorcustomermicrophonefault.
2)Red LED comes on after speech:
Inductionloopfault.
1)Ensuremicrophoneiswired
correctlyandrmlypluggedin. Try
alternative microphone to ensure
portisworking.
2)Ensureinductionloopconnectoris
wiredcorrectlyandrmlypluggedin.
I can’t hear
audio through
the induction
loop.
1)Inductionloopormicrophoneis
disconnected.
2)Looptesterhasafault.
1)Checkinstructionsforcorrect
connections and, if possible, check
the hearing device with a known
workinghearingloop.
2)Ensurelooptesterhasanewset
ofbatteries.
I can hear
interference
through
speakers
(buzzing /
whistling /
hissing).
1)Unscreenedorpoorlyearthed
third party equipment is being used
incloseproximity.
2)Internalvolumegainsettohigh.
3)Incorrectpowersupplybeing
used.
1)Switchoanythirdparty
equipment to identify the source of
interference.
2)Accesstheamplierengineers
modetoadjusttheinternalsettings.
3)Ensurethatourgroundedpower
supplyunitisconnected.
Amplier goes
into feedback.
1)Internalvolumegainsettohigh.
2)Microphonepositionedtooclose
tospeaker.
1)Accesstheamplierengineers
modetoadjusttheinternalsettings.
2)Movethemicrophonetoa
locationfurtherfromthespeaker.
Unit does not
go into power
saving mode.
1)Ambientnoiseinareaistoohigh. 1)Switchoanyairconsystems,
desktop fans and or computers to
reduceambientnoise.
Troubleshooting
If no action is successful please seek assistance from
yourdistributororaContactainstaller.

Contact your local
distributor for further
information.
www.contacta.co.uk