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1.  Ensure the customer and staff volumes are turned completely down.

2.  Adjust staff (Volume In) volume to a comfortable level. Press and hold 

the Volume In (+) or (-) buttons to increase or decrease the level. The 

corresponding LED bar will show the volume setting.

3.  Increase customer (Volume Out) volume until feedback is heard. Press 

and hold the Volume Out (+) or (-) buttons to increase or decrease the 

level. The corresponding LED bar will show the volume setting.

4.  Decrease customer (Volume Out) volume until feedback is eliminated.

Setup Area 2:

Ducking Adjustment (LED 2 flashes)

Setup Area 2 allows you to adjust the Ducking level or to turn it on/off. 

The ducking function is provided to reduce feedback on a window intercom 

system. Feedback occurs when the overall setting of both volume controls 

is too high. The ducking system works by detecting which microphone in the 

conversation is being used, and temporarily reducing the volume setting.  

Increase  

ducking level
Decrease  

ducking level

Ducking on

Ducking off

Increase drive

Decrease drive

The drive levels should be adjusted so the red LED 8 is illuminated only when 

there are peaks in the speech volume. 

If the amplifier does not have a loop attached, turn the Hearing Loop Drive off 

as indicated in the diagram above.

Setup Area 3:

Hearing Loop Drive Adjustment (LED 3 flashes)

Setup Area 3 allows you to adjust the Hearing Loop Drive or to turn it on/off. 

Hearing loops improve communication by enabling hearing device users to 

hear sound sources directly, cutting out background noise. 

Hearing Loop Drive on

Hearing Loop Drive off

Summary of Contents for STS-K072

Page 1: ...Installation User Guide December 2020 Window Intercom System Speaker Pod and Screen Mounted Microphone STS K072 ...

Page 2: ... Visitor Installation Hearing Loop Installation Amplifier Setup Troubleshooting Engineer s Mode 3 3 4 5 6 6 7 9 10 12 13 Contacta has a policy of continuous product development and therefore small specification changes may not be reflected in this manual Images labels packaging accessories and product colours are subject to change without notice ...

Page 3: ...lar barriers There is an optional hearing loop facility providing additional assistance for hearing device wearers 1 Installation and User Manual 2 Amplifier 3 IEC Lead 4 Power Supply 5 Hearing Loop Aerial optional Fixing Kit Adhesive Clip x 10 No 6 x 1 2 Countersunk Screws x 15 P Clips x 6 5 General Components 1 Speaker Pod 2 Staff Pod 3 Screen Mounted Microphone with Bent Stem 4 3 2 1 1 3 2 4 ...

Page 4: ...t tone for the attention of staff Staff microphone Customer visitor microphone Confidence LED if required for status alerts and fault detection Hearing loop aerial Line in connection for external audio source Staff speaker Customer visitor speaker Power input connection Use power supply through ground supply only ...

Page 5: ... power supply to the required length to connect to the back of the amplifier Bare approximately 6mm of the cable ends to connect to the 2 pin plugs Wire Cutters Strippers Tape Measure Pencil or Marker Pen Cable Ties Trunking Screwdrivers Flat or Blade 2 5mm and Phillips Head PH2 Battery or Mains Drill Drillbits 2mm 3mm 5mm and 7mm Cable Tacking Gun 10mm Recommended Tools Staff Counter Side Custome...

Page 6: ...re sitting 2 Mark the four fixing points for the amplifier under the counter 4 Drill and fix the amplifier in place using the supplied screws 6 Install the amplifier s power supply close to a power socket outlet using the supplied mounting bracket and fixing screws Fixing points Amplifier Installation ...

Page 7: ...the cable hole back to the amplifier and fix the microphone in place using the supplied screws 5 Fix the microphone head to the screen using the double sided pad supplied 6 Place the staff pod on the staff side of the counter top ensuring it does not cause an obstruction and is as close to staff as possible The recommended minimum distance between this pod and the screen mounted microphone is 300m...

Page 8: ...management holes drill suitable locations near the rear of both the staff and customer sides of the counter 10 Remove the top of the pods to gain access to the fixing points 11 Mark the two fixing points on the bottom of both pods Then mark two cable holes to be drilled one for both the customer visitor side and the staff side 12 Ensure there will be access to retrieve the cables then drill the ho...

Page 9: ...ion the aerial under the counter using either the provided P clips or another fixing 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 field will be directed towards user s head heights Ensure all hearing loop signage is displayed ...

Page 10: ...ume In or buttons to increase or decrease the level The corresponding LED bar will show the volume setting 6 Ensure the mouse microphones are placed as close to their intended users as possible 7 Check the amplifier is fully functional by ensuring the red fault light is NOT showing on the front 8 The Amplifier is now set up Our Window Intercom System amplifiers are pre set to volume levels suitabl...

Page 11: ...EDs illuminated while the Volume Out LED bar will display the firmware revision number in a fixed pattern of LEDs This indicates that default settings have been restored Fault Diagnosis LEDs Volume In LED 8 will stay red if there is a fault with the staff microphone Volume Out LED 8 will stay red if there is a fault with the customer visitor microphone Volume In LED 8 will flash red if there is a ...

Page 12: ...nections 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 off any third party equipment to id...

Page 13: ... no buttons are pressed for 2 minutes There are 3 editable setup areas in Engineer s Mode You will always enter setup area 1 first The green Volume In LED bar will flash to indicate which setup area you are in Setup Area 1 Maximum Volume Adjustment LED 1 flashes Setup Area 1 allows you to adjust the Volume In and Volume Out levels to further optimise the system for the environment in which it is i...

Page 14: ...dback on a window intercom system Feedback occurs when the overall setting of both volume controls is too high The ducking system works by detecting which microphone in the conversation is being used and temporarily reducing the volume setting Increase ducking level Decrease ducking level Ducking on Ducking off Increase drive Decrease drive The drive levels should be adjusted so the red LED 8 is i...

Page 15: ......

Page 16: ...s contacta co uk 44 0 1732 223900 Technical Support Ext 5 Further information is available on our website and our YouTube channel Window Intercom STS A31H Amplifier Setup Video Window Intercom Unboxing Positioning Guide Video ...

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