UI 760 - Audio Interface SENNHEISER - Free user manual and instructions

Product type	Audio interface
Brand	Sennheiser
Model	UI 760
Dimensions (mm)	91 x 32 x 101
Weight without battery	137 g
Weight with battery	205 g
Power supply	C battery 1.5 V (IEC LR 14)
Main functions	Headset/handset switching; sound quality adjustment (background noise filter); microphone mute; PC/telephone source selection; earpiece volume adjustment with Dynamic Volume Control; volume limiter at 85 dB(A) per directive 2003/10/EC
Cleaning	Soft, slightly damp cloth. Do not use solvents or cleaning agents.
Safety instructions	Keep out of reach of children (strangulation risk); do not use in damp or dusty environments; use only 1.5 V C alkaline batteries
Spare parts available	Adapter cable connector (ref. 05372); Easy-disconnect cable connector (ref. 05362)
Warranty	24 months from date of purchase (excluding accessories and batteries)
Recycling	Batteries: special waste or return to retailer; end-of-life device: local collection point or WEEE recycling center
Optional accessories	3-in-1 headset stand (ref. 502392); 3.5 mm jack cable to PC (ref. 05373); USB cable (ref. 502394)

Frequently Asked Questions - UI 760 SENNHEISER

How to connect the headset to the UI 760?

Connect the RJ11 4/4 plug of the adapter cable to the HEADSET jack on the front of the interface until it clicks into place.

What should I do if I don't hear a dial tone?

Check that the Headset/Handset button (11) is in the up position (headset activated), the handset is lifted, all cables are properly connected, and the UI 760 is correctly adjusted to your telephone via the ABC switch (6).

How to adjust the headset microphone volume?

Use the VC (7) adjustment control located under the device. Set it to '1' first, then make a call and turn slowly until your voice is clear to the person you are speaking with.

Why can't the other party hear me?

Make sure the Mute (10) button is in the up position (microphone enabled). Also check the microphone placement near your mouth and the microphone volume adjustment.

How to connect the UI 760 to a PC?

Plug in the PC cable (RJ11 to AUX jack on the back) and connect the two 3.5 mm jack plugs to the sound card outputs, or use the optional USB cable on a USB port. Then select the PC source with the PC/Telephone (9) button in the down position.

What should I do if I have no connection to the PC?

Check the connections, increase the PC volume. If the problem persists, the PC and interface may be incompatible. Contact the retailer.

How to limit the earpiece volume to comply with regulations?

Set the UE (8) switch to the 'triangle' position to activate the 85 dB(A) time-weighted average limit, in accordance with European directive 2003/10/EC.

Which battery to use and how long does it last?

Use a 1.5 V C alkaline battery (IEC LR 14). Its lifespan is approximately two years. Low volume and a whistling sound in the earpiece indicate it needs to be replaced.

Can I use a dictaphone with the UI 760?

Yes, connect the dictaphone to the 3.5 mm jack socket DICTAPHONE (2) on the front of the interface. The output allows recording conversations in both directions.

How to clean the UI 760?

Use a soft, slightly damp cloth. Never use solvents or cleaning products that could damage the paint.

USER MANUAL UI 760 SENNHEISER

3D rendered image of a gray rectangular electronic device casing with circular top and side ports (no text or symbols visible)

Instruction manual

Bedienungsanleitung

Notice d'emploi

The UI 760 allows you to connect:

• a standard telephone
- a h a n d s e t
• a headset of the Sennheiser Office or Call Center series
- a PC with sound card or USB port (enabling you to use the headset for VoIP and multimedia applications)
• a dictaphone for voice recording

With the UI 760, you can switch between the headset, handset and PC, set the volume of the headset speaker and microphone and mute the headset microphone.

Delivery includes

• UI 760
  • 1.5 V C-size battery (IEC LR 14)
• Telephone connecting cable
• Modular to Easy Disconnect cable
• Instruction Manual

Safety instructions

• Keep children away from the UI 760. When playing, children can be strangled by the cables.
• Do not use the UI 760 in a damp or dusty environment.
• Only use 1.5 V alkaline C-size (IEC LR 14) batteries for powering the UI 760.

Putting the UI 760 into operation

Connection sockets

The connection sockets are located at the box front and back side.

At the front:

• HEADSET socket 1 for the headset adapter cable
• DICTAPHONE socket ② for voice recording
• HANDSET socket ③ for the handset

At the back:

• PHONE socket 4 for the telephone connecting cable
• AUX socket 5 for the PC connecting cable

1 2 3 4 5

2

Connections

graph TD
    A["Device A"] -->|A/2| Device1["Central Device"]
    B["Device B"] -->|B/4| Device2["Device 1"]
    C["Device C"] -->|C/4| Device3["Device 2"]
    D["Device D"] -->|D/4| Device4["Device 1"]
    E["Device E"] -->|E/4| Device5["Device 2"]
    Device1 -->|Blue Arrow| Device6["Device 1"]
    Device2 -->|Blue Arrow| Device7["Device 2"]
    Device3 -->|Blue Arrow| Device8["Device 3"]
    Device4 -->|Blue Arrow| Device9["Device 4"]

		Box connection Peripheral devices
A	Headset RJ1	11 Secom Quick disconnect
B	Dictaphone	Jack 3.5 mm“Color Black”	Jack 3.5 mm“Color Black”
C	Handset RJ1	11 RJ11
D	Phone	RJ11	Depending on phone
E	Aux/PC RJ1	1 Jack (2x) 3.5 mm/USB

Connecting the headset to the UI 760

A Connect the RJ11 4/4 plug of the adapter cable to the HEADSET socket until it locks in place.

Connecting the dictaphone to the UI 760

B Connect the 3.5 mm jack plug of the dictaphone connecting cable to the JACK socket at the UI 760 front side until it locks in place. Connect the 3.5 mm jack plugs to the outputs of your dictaphone device.

Connecting the handset to the UI 760

C Pull the RJ11 4/4 plug of the handset cable out of the telephone and connect it to the HANDSET socket until it locks in place.

Connecting the telephone to the UI 760

D Connect one of the two RJ11 4/4 plugs of the supplied telephone connecting cable to the PHONE socket until it locks in place. Connect the second RJ11 4/4 plug to the handset socket on your telephone.

Connecting the PC to the UI 760

E Connect the RJ11 4/4 plug of the PC connecting cable to the AUX socket on the UI 760 until it locks in place.

Diagram showing two connected cables with connectors and a panel, no text or symbols present

Connect the two jack plugs to the outputs of your PC sound card as shown or the USB plug to the PC USB port.

Inserting the battery

When inserted into the UI 760, the battery has a service life of approx. two years.

Diagram of a device with battery, battery pack, and housing (no text or symbols)

Remove the lower rear part of the housing. Use included screw to tamper-proof the battery cover-mandatory in some countries. Insert the battery as shown and replace the lower rear part of the housing.

Low battery warning

Reduced output volume and a hum noise are heard in the headset speaker to indicate that the battery is low. Insert a new battery.

Adjusting the UI 760 to your telephone

Use the switch 6 at the bottom of the housing to adjust the UI 760 to your telephone.

First make sure that the handset and the headset are connected correctly. The handset must be activated, i.e. the Headset/Handset button 11 must be in "down" position. Check if you can hear a dial tone in the handset. Press the Headset/Handset button 11 to activate the headset. Check if you can hear a dial tone. Otherwise, please proceed as follows:

Set the ABC switch 6 to the positions "A", "B" and "C" one after the other. In each position, check if you can hear a dial tone. The switch is located at the box bottom side.

A B C 6 4 6 7 1 9 8

UI 760 Technical
ABC switch 6	Clear dial tone adjustment (wiring)
Microphone VC 7	Adjust microphone sensitivity Position 0-9
EU Switch 8	85 dB output limit

When is the UI 760 ready for operation?

The UI 760 is ready for operation as soon as:

• it is connected to your telephone
  • the battery is inserted
• it is adjusted to your telephone

If you disconnect the UI 760 from the telephone, it is immediately put out of operation.

Setting the volume of the headset microphone

With the UI 760, you can set the volume of the headset microphone: a soft voice is slightly amplified and a loud voice is attenuated. The trimmer ⑦ is located at the box bottom side.

Turn the trimmer 7 to the position marked "1".
Make a call and speak into the microphone with a normal voice. Slowly turn the trimmer until the other party can hear you loudly and clearly.

Adjusting the speaker volume output to comply with the EU Directive 2003/10/EC

The UI 760 allows you to limit the speaker volume output in the headset to comply with EU Directive 2003/10/EC.

Move the switch ⑧ from position “square” to “triangle” to reduce the speaker volume output according to EU Directive 2003/10/EC noise at work.

Note:

The Universal Interface UI 760 is a special version featuring a reduced output level. Even with the volume

of the Interface set to the maximum value, the signal transmitted by the connected Sennheiser Communications headset will never exceed the maximum of 85 dB (A) per day as a time-weighted average* value, which is in compliance with the EU Noise Directive**

* The time-weighted average value is based on a breakdown of a typical working day and measured as the sound pressure level with a B&K HATS (Head And Torso Simulator)

** EU Directive 2003/10/EC on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (noise)

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Using the UI 760

graph TD
    A["Mute"] --> B["Mute/Active"]
    B --> C["Not Active/default"]
    D["Headset/Handset"] --> E["Handset/Active"]
    E --> F["Headset/default"]
    G["PC interface"] --> H["Communication through PC/Active"]
    I["Sound clarity"] --> J["Sound clarity/Active"]
    K["Not Active/default"] --> L["Not Active/default"]

9 PC/telephone button
10 Mute button
11 Headset/Handset button
12 Sound clarity button
13 Volume control

Switching between the headset and the handset

Press the button 11 to switch between the headset and the handset. Button down: handset is activated Button up: headset is activated

Muting the headset microphone

Press the button 10 to mute the headset microphone. Button down: microphone is muted Button up: microphone is activated

Adjusting the sound clarity of the headset speaker

With the UI 760, you can adjust the sound clarity of the headset speaker. Annoying background noise coming through the headset speaker is filtered out and speech intelligibility is thus enhanced.

Press the button 12 to filter out annoying background noise. Button down: speech intelligibility enhancement system is activated Button up: speech intelligibility enhancement system is deactivated

Selecting the source — PC or telephone

Press the button ⑨ to select the source — PC or telephone. Button down: PC is selected as the source Button up: telephone is selected as the source

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Note:

If the PC is selected as the source, the button 10 and volume control 13 are deactivated. Consequently, you cannot mute the headset microphone or set the volume of the headset speaker using the UI 760 but you have to set the volume via your PC.

Setting the volume of the headset speaker

Use the volume control 13 to continuously set the volume of the headset speaker.

"Dynamic Volume Control" ensures that the volume set via volume control is kept constant, even if the other party speaks with varying volumes.

The functions of your telephone

Even with the UI 760 connected, you can use all functions of your telephone as usual. To make a call, lift the handset and dial a phone number. To end a call, replace the handset. The "hands-free conversation" function can also be used as usual.

Using the dictaphone output

The output can be used to record a conversation in both directions.

Cleaning the UI 760

Only use a soft – and, if necessary, slightly damp – cloth for cleaning the UI 760. Do not use any solvents or cleansing agents as these can damage the varnish of the UI 760.

If problems occur...

Problem What to do
No dial tone • Make sure that the button is in “up” position. • Make sure that the handset is lifted. • Make sure that the cables are connected correctly. • Make sure that the UI 760 is correctly adjusted to your telephone.	11
Adjustment to your telephone is not possible	• Your telephone does not meet standard requirements. Please contact your dealer.
The other party cannot hear you	• Make sure that button mic. mute 10 is in “up” position.

Problem What to do
No connection to the PC • Make sure that the cables are connected correctly.Increase the volume on your PC.Your PC and the UI 760 are not compatibel.Please contact your dealer.
Your voice can hardly be heard	Make sure that the headset microphone is positioned at the corner of your mouth.Make sure that the volume of the headset microphone is sufficient.Make sure that the UI 760 is correctly adjusted to your telephone.
The speaker volume varies •	Your telephone does not meet standard requirements. Please contact your dealer.The battery may be low.Replace the battery.

If the problem persists, please contact your local Sennheiser Communications agent for assistance. Never repair or attempt to repair the units as this will invalidate the warranty.

Accessories

	Article number
Headset holder 3 in 1 (Headset holder - Desktop mounting plate - Desktop lock plate)	502392
Modular to 2 X 3.5 mm jack plugs cable - for connection of UI box to PC via standard sound card - existing CUIPC 1	05373
Modular to USB plug cable - for connection of UI box to PC directly via USB port	502394
3.5 mm jack plug to 3.5 mm jack plug cable - for connection of UI box to “Dicta- phone device” (PC, PDA, tape recorder etc.)	502391

Spare parts

	Article number
Modular to Modular cable - for connection of UI box to desk phone CPHUI 1	05372
Modular to Easy Disconnect cable - for connection of UI box to headset - CSTD 01 standard bottom cable	05362

Specifications

Dimensions [mm]: 91 x 32 x 101

Weight: approx. 137 g

approx. 205 g with battery

Battery: 1.5 V C-size battery (IEC LR 14)

14

Manufacturer declarations

Warranty regulations

The guarantee period for this Sennheiser product is 24 months from the date of purchase. Excluded are accessory items, rechargeable or disposable batteries that are delivered with the product; due to their characteristics these products have a shorter service life that is principally dependent on the individual frequency of use. The guarantee period starts from the date of original purchase. For this reason, we recommend that the sales receipt be retained as proof of purchase. Without this proof (which is checked by the responsible Sennheiser service partner) you will not be reimbursed for any repairs that are carried out.

Depending on our choice, guarantee service comprises, free of charge, the removal of material and manufacturing defects through repair or replacement of either individual parts or the entire device. Inappropriate usage (e.g. operating faults, mechanical damages, incorrect operating voltage), wear and tear, force majeure and defects which were known at the time of purchase are guarantee claims. The guarantee is void if the product is manipulated by non-authorised persons or repair stations. In the case of a claim under the terms of this guarantee, send the device, including accessories and sales receipt, to the responsible service partner. To minimise the risk of transport damage, we recommend that the original packaging is used. Your legal rights against the seller, resulting from the contract of sale, are not affected by this guarantee.

exclude

The guarantee can be claimed in all countries outside the U.S. provided that no national law limits our terms of guarantee.

Batteries

The supplied batteries or rechargeable batteries can be recycled. Please dispose of them as special waste or return them to your specialist dealer. In order to protect the environment, only dispose of exhausted batteries.

WEEE Declaration

Your Sennheiser product was developed and manufactured with high quality materials and components which can be recycled and/or reused. This symbol indicates that electrical and electronic equipment must be disposed of separately from normal waste at the end of its operational lifetime. Please dispose of this product by bringing it to your local collection point or recycling centre for such equipment. This will help to protect the environment in which we all live.

Further information

Frequently asked questions

For possible solutions to problems, please refer to the FAQ on our web page:

www.senncom.com and see under "Products", "Universal Interface".

Universal Interface UI 760

Diagram showing two connected cables with connectors and a panel, no text or symbols present

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ABC ABC 4 6 1 9 7 8

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graph TD
    A["Device A"] -->|Wireless cable to the main device| B["Central Device"]
    B -->|Wireless cable to the main device via cable to PC| C["Device B"]
    B -->|Wireless cable to the main device via cable to PC| D["Device C"]
    B -->|Wireless cable to the main device via cable to PC| E["Device D"]
    C --> F["Device E"]
    D --> G["Device F"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333

		Collegamento apparecchio	Periferiche
A	Cuffia RJ11		disconnessione Secom Quick
B	Dittafono Jack 3,5 mm “Color Black”		Jack 3,5 mm “Color Black”
C	Ricevitore RJ11 RJ11
D	Telefono	RJ11	In base al telefono
E	Aux/PC RJ11	Jack (2x) 3,5 mm/USB

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Diagram of a battery pack with an open rear panel and internal components, showing battery casing and battery stack (no text or symbols)

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Nota:

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Uso dell'UI 760

graph TD
    A["Outer Ring"] --> B["Muto"]
    A --> C["Cuffia/Ricevitore"]
    A --> D["Interfaccia PC Qualità"]
    A --> E["Suono"]
    B --> F["Muto/Attivo"]
    C --> G["Ricevitore/Attivo"]
    D --> H["Comunicazione mediante PC/Attivo"]
    E --> I["Qualità del suono/Attivo"]
    F --> J["Non attivo/Default"]
    G --> K["Cuffia/Default"]
    H --> L["Non attivo/Default"]
    I --> M["Non attivo/Default"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#ccf,stroke:#333
    style D fill:#cfc,stroke:#333
    style E fill:#cfc,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#ffc,stroke:#333
    style H fill:#ffc,stroke:#333
    style I fill:#ffc,stroke:#333
    style J fill:#fcc,stroke:#333
    style K fill:#fcc,stroke:#333
    style L fill:#fcc,stroke:#333

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Parti di ricambio

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Universal Interface UI 760

El UI 760 le permite conectar:

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Conexiones

graph TD
    A["Device A"] -->|Wireless cable to the main device| B["Central Device"]
    B -->|Wireless cable to the main device| C["Device B"]
    B -->|Wireless cable to the main device| D["Device C"]
    B -->|Wireless cable to the main device| E["Device D"]
    B -->|Wireless cable to the main device| F["Device E"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333

Simple geometric diagram with a blue rectangle, intersecting lines, and a central circle (no text or symbols)

Diagram showing two USB cable connectors connected to a panel with ports and connectors (no text or symbols)

Diagram of a battery pack with an open rear panel and internal components, showing battery, battery, and casing (no text or symbols)

Technical diagram of a device panel with labeled ports and indicator lights, showing connections between components.

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Nota:

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Uso del UI 760

graph TD
    A["silenciador"] --> B["silenciador/activo"]
    B --> C["inactivo/predeterminado"]
    D["headset/auricular del teléfono"] --> E["auricular del teléfono/activo"]
    E --> F["headset/predeterminado"]
    G["interfaz del PC"] --> H["interfaz del PC/activo"]
    H --> I["inactivo/predeterminado"]
    J["sistema de optimización de voz"] --> K["sistema de optimización de voz/activo"]
    K --> L["inactivo/predeterminado"]
    style A fill:#333,stroke:#fff,color:#fff
    style D fill:#333,stroke:#fff,color:#fff
    style G fill:#333,stroke:#fff,color:#fff
    style J fill:#333,stroke:#fff,color:#fff
    style K fill:#333,stroke:#fff,color:#fff
    style L fill:#333,stroke:#fff,color:#fff

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10

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Nota:

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12

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Piezas de recambio

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Universele Interface UI 760

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Wordt geleverd met

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Aansluitingen

graph TD
    A["Device A"] -->|A USB cable routing| Device1["Mobile Phone"]
    A -->|B USB cable routing| Device2["Mobile Phone"]
    A -->|C USB cable routing| Device3["Mobile Phone"]
    A -->|D USB cable routing| Device4["Mobile Phone"]
    A -->|E USB cable routing| Device5["Computer"]

		Boxverbinding Randapparatuur
A	Hoofdset RJ11 Secom Quick-ontkoppeling
B	Dictafoon jackplug 3,5 mm „Color Black“		jackplug 3,5 mm „Color Black“
C	Handset RJ11 RJ11
D	Telefoon	RJ11	Afhankelijk van merk en type telefoon
E	Aux/PC RJ11	jackplug (2x) 3,5 mm	/USB

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Diagram of a battery pack with an open rear panel and internal components, showing battery casing and battery stack (no text or symbols)

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Opmerking:

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12

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Sennheiser Communications A/S

6 Langager

2680 Solrød Strand

Denmark

www.senncom.com

Printed in China

Publ. 03/09

525109/A02