TeamConnect Meeting and audio conference solution Instruction Manual
Contents Contents Important safety instructions.................................................................................5 Package contents.......................................................................................................7 Products...................................................................................................................... 7 Accessories.................................................................................................................
Contents Using the Device Toolbox..................................................................................... 56 Using the Mixer Console....................................................................................... 59 Using presets.......................................................................................................... 61 Cleaning and maintaining the TeamConnect components..................................62 Specifications..................................................
Contents 4 | TeamConnect
Important safety instructions Important safety instructions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
Important safety instructions Risk of fire due to overloading Do not overload wall outlets and extension cables as this may result in fire and electric shock. Danger of hearing damage due to high volumes This product is used for commercial purposes. Commercial use is subject to the rules and regulations of the trade association responsible. Sennheiser, as the manufacturer, is therefore obliged to expressly point out possible health risks arising from use.
Package contents Package contents Products SL TeamConnect CUCB1 Art. No.
Package contents MEB 102-L TC black: Art. No. 506729 white: Art. No. 506763 grey: Art. No. 506764 1 1 1 1 MEB 102-L XLR-5 to 5-pin terminal connector cable quick guide safety guide MEB 104-L TC black: Art. No. 506730 white: Art. No. 506765 grey: Art. No. 506766 1 1 1 1 MEB 104-L XLR-5 to 5-pin terminal connector cable quick guide safety guide MEB 114-S TC black: Art. No. 506600 white: Art. No. 506601 grey: Art. No.
Package contents TeamConnect System TeamConnect Standard Fix TeamConnect Standard Flex TeamConnect Large Fix TeamConnect Large Flex Bundles SL TeamConnect CUCB1 1 1 1 1 1 SL Mobile Adapter 1 1 1 1 1 1 SL Mic Hub 1 - 1 1 2 2 SL Loudspeaker 52 A - 2 2 2 2 MAS 1 TC - 1 - 2 - MAS 2 TC - 1 1 1 1 MEB 104-L TC - 4 - 8 - MEB 114-S TC - - 4 - 8 Mains cable 5 m - 2 2 2 2 Mains cable 1.8 m 1 1 1 1 1 3.
How to read this manual How to read this manual This instruction manual is divided into two parts: • The first part gives a general overview of the TeamConnect system, introducing its usage and components. See “The Sennheiser TeamConnect solution” on page 11. • The second part is the installation guide which contains detailed information on how to install, connect and configure the TeamConnect components. See “Installing and connecting the TeamConnect components” on page 22.
The Sennheiser TeamConnect solution System Introduction The Sennheiser TeamConnect solution The Sennheiser Group, with its headquarters in Germany, is one of the world‘s leading manufacturers of microphones, headphones and wireless transmission systems. We are shaping today the audio world of tomorrow – that is the ambition that we and our company live by from day to day. This vision statement describes what we are hoping to achieve together.
Using the TeamConnect system Using the TeamConnect system The Sennheiser TeamConnect system can be used for both teleconferencing and web conferencing applications. In teleconferences the system is operated with a mobile dialer iOS App for iPad / iPhone or with a browser-based dialer for computers (e.g. laptop, tablet, etc.). With the dialer you can establish the telephone connection and control the audio signals of the teleconference.
Using the TeamConnect system Using the TeamConnect system for teleconferencing For teleconferences the TeamConnect system is used to establish the telephone connection and to process all audio signals of the teleconference. The mobile dialer iOS App or the browser-based dialer are used to operate the TeamConnect system. You can use the dialer to dial the desired telephone number and to control all audio signals of the teleconference.
Using the TeamConnect system 14 | TeamConnect XX Select the desired meeting room in the “TeamConnect” App. XX Log in using the room password provided by the system administrator. XX Dial a telephone number or select a number from the TeamConnect Phonebook or the Address Book of your iPad / iPhone to start the teleconference.
Using the TeamConnect system browser-based dialer on computer To start a teleconference with the browser-based dialer: XX Connect your computer via WLAN or LAN to the desired network. XX Open a web browser on your computer. Enter the address of the meeting room in the address bar of the browser. The address is provided by the system administrator. XX In order to use the browser-based dialer please note that JavaScript and Cookies must be enabled in your web browser.
Using the TeamConnect system 16 | TeamConnect XX Enter the room password provided by the system administrator. XX Dial a telephone number or select a number from the TeamConnect Phonebook to start the teleconference.
Using the TeamConnect system Using the TeamConnect system for web conferencing For web conferences the TeamConnect system is used to process all audio signals of the web conference. The web conference must be started with a web conferencing software (e.g. WebEx, Skype, etc.) installed on a computer.
Using the TeamConnect system Using the TeamConnect system for conferencing applications with mobile phones or tablet PCs An additional possibility to start a telephone or web conference is connecting any mobile phone or tablet PC with a 3.5 mm jack socket to the Headset port of the TeamConnect Combox. For that purpose you need the SL Mobile Adapter 1 from 3.5 mm jack socket to RJ-9, which is available as an accessory of the TeamConnect system. In addition to the SL Mobile Adapter 1 you need a 3.
The TeamConnect components The TeamConnect components The following Sennheiser components are part of or compatible with the TeamConnect system. TeamConnect Central Unit The TeamConnect Central Unit is an automatic mixer for processing audio inputs (e.g. microphones, telephone audio, computer audio) and outputs (e.g. loudspeakers) for teleconferencing and web conferencing applications. All components used with the TeamConnect system are connected to the Central Unit.
The TeamConnect components SpeechLine microphones and microphone accessories The Sennheiser SpeechLine microphone series offers a variety of different microphones and microphone accessories for different applications.
The TeamConnect components Configuration Manager software The Configuration Manager software is used by the system administrator to set up and configure all components used with the TeamConnect system. It is not used for operating the TeamConnect system for teleconferencing and web conferencing. The Configuration Manager software is required to adjust the settings of the installed components.
Installing and connecting the TeamConnect components Installation Guide Installing and connecting the TeamConnect components The Installation Guide is the second part of this instruction manual and provides detailed information on how to install, connect and configure the different components and devices of the TeamConnect solution. The following illustration provides a schematic overview of the components and connections of the TeamConnect system.
Installing and connecting the TeamConnect components SL TeamConnect CU1 - Product overview Front 1 2 3 1 ON / OFF hook indicator 4 Indicates if the telephone line is active (blue) or inactive (red) Indicate which microphone channels are active (blue) or muted (red) 2 MICROPHONE indicators Indicate current meter level of the output chosen as the volume channel in the Configuration Manager software USB 2.
Installing and connecting the TeamConnect components SL TeamConnect CB1 - Product overview Front C TeamConnect C POWER indicator Back D E D CONTROL / STATUS socket E USB port F HS RJ-9 socket G LINK OUT RJ-45 socket 24 | TeamConnect F G GPIO port for connecting external switches or status indicators or the SL Mic Hub 1 For information on the pin allocation refer to page 31. USB 2.
Installing and connecting the TeamConnect components SL Mic Hub 1 - Product overview Front H I J Back J H CONTROL / STATUS sockets I AUDIO OUT socket J MIC 1 - MIC 4 sockets K MUTE socket K H Logic ports for connecting the MAS 2 TC hook button, the SL TeamConnect CB1 or a second SL Mic Hub 1 RJ-45 socket for connecting the SL Mic Hub 1 to the SL TeamConnect CU1 using the supplied RJ-45 to 12-pin terminal connector adapter cable 5-pin terminal for connecting the TeamConnect microphones 7-pin termin
Installing and connecting the TeamConnect components Installing the SL TeamConnect CU1 All components of the TeamConnect system used in the meeting room setup must be connected to the central control unit SL TeamConnect CU1. When all cables are connected, the SL TeamConnect CU1 can be installed permanently. The user does not need to access the SL TeamConnect CU1 directly. All further configuration and operation is performed via iPad / iPhone or computer.
Installing and connecting the TeamConnect components Establishing a network connection You can either connect the SL TeamConnect CU1 to an existing network or you can set up a separate wireless network for directly accessing the SL TeamConnect CU1 in telephone or web conferences. After establishing a network connection the mobile dialer iOS App “TeamConnect” or the browser-based dialer can be used to operate the system during conferences.
Installing and connecting the TeamConnect components Setting up a separate wireless network For exclusive access to the SL TeamConnect CU1 you can set up a separate wireless network. To connect the SL TeamConnect CU1 to a WLAN router: CU1 LAN4 RJ-45 LAN3 LAN2 LAN1 RJ-45 Plug an RJ-45 cable into the LAN socket 7 of the SL TeamConnect CU1. XX Plug the other end of the RJ-45 cable into a network socket of the WLAN router.
Installing and connecting the TeamConnect components Connecting the SL TeamConnect CU1 to the telephone landline network For teleconferencing the SL TeamConnect CU1 is needed to establish the telephone connection. It must be connected to the analog telephone landline network. The SL TeamConnect CU1 also offers the possibility of connecting an analog telephone set.
Installing and connecting the TeamConnect components Connecting the SL TeamConnect CB1 to the SL TeamConnect CU1 The SL TeamConnect CB1 is the audio interface of the TeamConnect system. It must be installed in the meeting room. The user can connect a computer for using the TeamConnect system for processing the audio signals of web conferences. The SL TeamConnect CB1 can also be used to connect a telephone headset or the headset connector of an enterprise telephone for teleconferences.
Installing and connecting the TeamConnect components Using the GPIO port of the SL TeamConnect CB1 The SL TeamConnect CB1 has a GPIO port where you can connect external switches or status indicators for controlling or indicating the mute status of a microphone or for opening and closing the telephone line. GPIO port pin allocation For connecting switches or status indicators observe the following pin allocation: Pin Allocation Function Pin 1 Microphone mute control (3.
Installing and connecting the TeamConnect components Connecting a computer For web conferencing applications the user can use the TeamConnect system to process the audio signals of the web conference. For that purpose the computer must be connected to the SL TeamConnect CB1, which is installed in the meeting room. To connect a computer to the SL TeamConnect CB1: CB1 Type B Type A Plug the type B plug of the USB cable into the USB port E of the SL TeamConnect CB1.
Installing and connecting the TeamConnect components configuration window of the Configuration Manager software (see page 54). For additional information refer to the instruction manual of the headset or the enterprise telephone. Connecting the SL TeamConnect CU1 to a media control system CU1 The TeamConnect system can be used with media control systems of third-party manufacturers (e.g. AMX, Crestron, etc.).
Installing and connecting the TeamConnect components Connecting and positioning microphones Microphones can either be connected using the SL Mic Hub 1 or directly to the SL TeamConnect CU1. Connecting microphones using the SL Mic Hub 1 The SL Mic Hub 1 allows for a very easy and quick connection of the TeamConnect microphones and the TeamConnect logic control buttons.
Installing and connecting the TeamConnect components To connect the TeamConnect microphones and accessories: XX Connect the AUDIO OUT socket of the SL Mic Hub 1 to the MIC / LINE IN terminal of the SL TeamConnect CU1 using a shielded Cat 5 cable with RJ-45 connectors and the supplied RJ-45 to 12-pin terminal adapter. XX Connect the CONTROL / STATUS port of the SL Mic Hub 1 to the CONTROL / STATUS port of the SL TeamConnect CB 1 using the supplied 6-pin to 6-pin terminal connector cable.
Installing and connecting the TeamConnect components TeamConnect system setups with the SL Mic Hub 1 Application A.
Installing and connecting the TeamConnect components Application C: up to 8 on-table microphones • 2 x SL Mic Hub 1 • 8 x MEB 114-S TC • 1 x MAS 2 TC Three Cat 5 cables needed between table and Central Unit SL Mic Hub 1 Central Unit SL TeamConnect CU1 SL Mic Hub 1 Combox SL TeamConnect CB1 Application D: up to 8 in-table microphones • • • • 2 x SL Mic Hub 1 8 x MEB 102-L TC or MEB 104-L TC 2 x MAS 1 TC 1 x MAS 2 TC Three Cat 5 cables needed between table and Central Unit SL Mic Hub 1 Central Unit SL
Installing and connecting the TeamConnect components Connecting microphones directly to the SL TeamConnect CU1 CU1 You can connect up to eight microphones to the orange MIC / LINE IN terminal of the SL TeamConnect CU1. For attaching the microphone cables you need the supplied terminal connectors. To connect a microphone to the SL TeamConnect CU1: Remove the insulation from the wires at the end of the microphone cable.
Installing and connecting the TeamConnect components Connecting audio output signals CU1 The black LINE OUT terminal of the SL TeamConnect CU1 has eight audio output channels for connecting audio output signals (e.g. active loudspeakers or other audio devices). To connect an audio output signal to the SL TeamConnect CU1: Remove the insulation from the wires at the end of the audio cable. XX Attach the three wires to the terminal connector observing the correct pin allocation (see figure on the left).
Installing and connecting the TeamConnect components Preparing the Quick Guide and the Room Sticker for the user The Quick Guide delivered with the product is intended to be placed in the meeting room as a resource to help the user getting started with the TeamConnect system for teleconferencing and web conferencing. The Quick Guide is available in two variants: as a paper variant and as a sticker.
The Configuration Manager software The Configuration Manager software The Configuration Manager www.sennheiser.com. software is available for download at Installing the Configuration Manager software For installing and using the Configuration Manager software, you need administrator rights on the computer. Without administrator rights the software cannot be installed or used. To install the software: Navigate to the folder where you downloaded the software and double-click Setup.exe.
The Configuration Manager software Connecting the computer to the SL TeamConnect CU1 via USB To connect your computer to the SL TeamConnect CU1 via USB: Install the Configuration Manager software on your computer, so that the USB driver for the SL TeamConnect CU1 is installed on your computer. XX Plug the type B plug of the USB cable into the USB port 4 at the front of the SL TeamConnect CU1. XX Plug the type A plug of the USB cable into a USB port of your computer.
The Configuration Manager software Navigating the Configuration Manager software For installing and using the Configuration Manager software, you need administrator rights on the computer. Without administrator rights the software cannot be installed or used. After starting the Configuration Manager software the start screen is displayed. The following elements are important for navigating the Configuration Manager software.
The Configuration Manager software Status Indicators The status indicators on the bottom of the window indicate the following information. Status Indicator Status Communications Indicates if an SL TeamConnect CU1 is connected via USB, RS-232 or Ethernet or not connected. Telephone In Use Indicates if the telephone line is in use. Mic / Mute Gating Indicates if a microphone channel is muted or gated.
The Configuration Manager software Option Settings Run Preset 1 Applies the stored Preset 1 Run Preset 2 Applies the stored Preset 2 Run Preset 3 Applies the stored Preset 3 Run Preset 4 Applies the stored Preset 4 Tools menu Option Settings Network Find Opens a search dialog to find an SL TeamConnect CU1 device in the network via the network name or the IP address. Phonebook Edit Opens the Phonebook of the SL TeamConnect CU1.
The Configuration Manager software Configuring the SL TeamConnect CU1 The audio and communication settings of an SL TeamConnect CU1 are adjusted in the configuration screen of the respective SL TeamConnect CU1. To open the configuration screen of an SL TeamConnect CU1: XX Click on the icon of the desired SL TeamConnect CU1 in the Connections list. The configuration screen of the selected SL TeamConnect CU1 opens.
The Configuration Manager software Configuring microphone settings The audio settings of microphones and audio devices connected to the orange MIC / LINE IN terminal of the SL TeamConnect CU1 are configured in the Mics area of the configuration screen. To configure the microphone settings: XX Click on the Mics icon in the configuration screen. The Mic Settings configuration window opens.
The Configuration Manager software Option Settings Max Number of Microphones Defines the maximum number of microphones which are active simultaneously. Gate Mode • Auto (default): Gating depends on the maximum number of microphones. • Man On: Gates the channel on. The audio signal is on permanently. The channel is counted in the maximum number of microphones. • Man Off: Gates the channel off. The audio signal is attenuated by the specified Off Attn level. • Override On: Gates the channel on.
The Configuration Manager software Configuring audio processing settings You can configure three general audio processing channels with different audio settings (equalizer, filter, etc.) which you can apply to selected input and output channels. To configure the audio processing settings: XX Click on the Processing icon in the configuration screen. The Processing Settings configuration window opens.
The Configuration Manager software Configuring line input settings The audio settings of audio devices connected to the green LINE IN terminal of the SL TeamConnect CU1 are configured in the Inputs area of the configuration screen. To configure the line input settings: XX Click on the Inputs icon in the configuration screen. The Input Settings configuration window opens.
The Configuration Manager software Configuring audio output settings The audio settings of the audio output channels of the black LINE OUT terminal of the SL TeamConnect CU1 are configured in the Outputs area of the configuration screen. To configure the audio output settings: XX Click on the Outputs icon in the configuration screen. The Output Settings configuration window opens.
The Configuration Manager software Configuring teleconference settings The teleconference settings of the TeamConnect system are configured in the Telco area of the configuration screen. To configure the teleconference settings: XX Click on the Telco icon in the configuration screen. The Telephone Settings configuration window opens.
The Configuration Manager software Tab Option Settings Level Receive ALC Activates auto level control, which keeps the telephone audio level consistent with audio levels coming from other sources. Telco Receive Adjusts the incoming telephone audio signal. ClearEffect Activates the ClearEffect. Telephone lines limit audio bandwidth to a range of 300 Hz to 3.3 kHz.
The Configuration Manager software Configuring the settings of the SL TeamConnect CB1 The settings of the USB and Headset ports of the SL TeamConnect CB1 are configured in the COM Settings area of the configuration screen. To configure the settings of the SL TeamConnect CB1: XX Click on the COM Settings icon in the configuration screen. The COM Settings configuration window opens.
The Configuration Manager software Configuring communication settings The settings of the network and serial connections of the SL TeamConnect CU1 are configured in the Communications area of the configuration screen. To configure the communication settings: XX Click on the Communications icon in the configuration screen. The Communication Settings configuration window opens.
The Configuration Manager software Some changes might require a reboot of the SL TeamConnect CU1. During the reboot the audio signals are interrupted. Using the Device Toolbox The Device Toolbox is a list of audio setting presets for certain audio devices. It contains audio setting presets for the Sennheiser SL Loudspeaker 52 A, for the Sennheiser MEB 102, MEB 104 and MEB 114-S microphones as well as audio setting presets for other common Sennheiser microphones.
The Configuration Manager software To add a new device to the Device Toolbox: Open the Device Toolbox Editor. XX Click Add. The Add Device dialog box opens. XX XX Select a device type in the Device Type dropdown menu. The following device types are available: Device Type Description Video Codec Use for audio setting presets for e.g. video conferencing systems, etc. Sound Card Use for audio setting presets for e. g. PC sound cards.
The Configuration Manager software To edit an existing device in the Device Toolbox: Open the Device Toolbox Editor. XX Select the desired device in the list of existing devices. XX Click Edit. The Edit Device dialog box opens. It has the same features as the Add Device dialog box. XX Configure the desired audio settings. XX Click OK to save the changed settings of the device in the Device Toolbox. XX To delete an existing device from the Device Toolbox: Open the Device Toolbox Editor.
The Configuration Manager software Using the Mixer Console The Mixer Console is used to route the audio signals of the inputs to the desired outputs using a matrix array. Any input or combination of inputs can be routed to any output or combination of outputs. To open the the Mixer Console: XX Click on the Mixer Console icon in the configuration screen. The Mixer Console configuration window opens The inputs are listed on the left and the outputs are listed along the top of the matrix.
The Configuration Manager software Virtual Reference outputs The Virtual Reference outputs allow the combination of multiple audio sources to create a single combined audio signal which can be used as the reference signal for echo cancellation. To combine the desired audio signals as a single virtual reference in the Mixer Console: XX Route the desired audio signals to the desired Virtual Ref channel in the Mixer Console.
The Configuration Manager software Using presets All configuration settings adjusted in the different configuration menus of the Configuration Manager software can be saved as presets for later use. There are four preset slots for saving the settings. The presets are stored directly on the SL TeamConnect CU1. They can be applied later by the user with the dialer. If you save the configuration settings as a configuration settings file (.
Cleaning and maintaining the TeamConnect components Cleaning and maintaining the TeamConnect components CAUTION Damage to the product caused by liquids! Liquids entering the product can short-circuit the electronics or damage the mechanics. Solvents or cleansing agents can damage the surface of the product. XX Keep all liquids away from the product. XX Do not use any solvents or cleansing agents. Before cleaning, switch all devices off and disconnect them from the mains power supply.
Specifications Specifications SL TeamConnect CU1 Housing Dimensions (W x H x D) Weight 17" x 7.5" x 2" (43.2 cm x 19.1 cm x 5.1 cm) 4.5 lbs. (2.25 kg) Audio performance Conditions Frequency response Noise (EIN) THD+N Dynamic range Crosstalk Sampling rate A/D - D/A converters Unless otherwise specified, all measurements are performed with a 20 Hz to 22 kHz BW limit (no weighting) 20 Hz to 22 kHz BW, max gain -124 dBu, 22 kHz BW, max gain Rs = 150 Ω < 0.
Specifications Telco line echo cancellation Telephone noise cancellation Tail time: 32 ms Null: 55 dB nominal 6-15 dB attenuation RS-232 Control port Connector Baud rates Protocol Hardware flow control DB9 female 9,600 / 19,200 / 38,400 / 57,600 (default) / 115,200 8-bit / 1 stop / no parity ON (default)/OFF Operating and storage conditions Temperature Relative air humidity Operation: 0 to +40 °C Storage: -30 to +85 °C 20 to 90 % SL TeamConnect CB1 Housing Dimensions (W x H x D) Weight 4.7" x 5.
Specifications Terminal connectors 3-pin terminal connector 6-pin terminal connector Contact spacing Phoenix Contact MC 1.5/ 3-ST-3.5 (or similar) Phoenix Contact MC 1.5/ 6-ST-3.5 (or similar) 3.5 mm In compliance with Europe USA/Canada Access and Terminals (AT): ETSI ES 203021-1/2/3 EMC: EN 55022 EN 55024 EN 61000-3-2 EN 61000-3-3 Safety: EN 60950-1 RoHS: EN 50581 Energy Efficiency: EC Regulation No.
Specifications SL Loudspeaker 52 A Acoustics Frequency response ± 3 dB Max. SPL at 1 m (150 - 5,000 Hz) THD at 90 dB SPL at 1 m > 200 Hz 53 - 30,000 Hz 97 dB SPL <1% Electronics Nominal output power woofer RMS at 1 % THD (with deactivated limiter) Nominal output power tweeter RMS at 1 % THD (with deactivated limiter) THD + N vs.
Specifications Operating and storage conditions Temperature Relative humidity Operation: 0 - +40 °C Storage: -25 - +70 °C 95 % (non-condensing) In compliance with Europe USA Canada EMC: EN 55103-1/-2 Safety: En 60065 47 CFR 15 subpart B CAN ICES-3 (B)/NMB-3(B) SL Mic Hub 1 Housing Dimensions metal 144 x 76.3 x 31.
Specifications MEB 102-L TC Transducer principle Acoustic principle Pick-up pattern Frequency response Nominal impedance at 1 kHz Sensitivity Maximum sound pressure level Equivalent noise level Equivalent noise level weighted as per CCIR 468-3 Dynamic range Phantom power Current consumption Connector Pin assignment XLR-5M out LED light ring color TTL levels for LED activation Connection cable Weight Height Diameter Thread Operating temperature pre-polarized condenser microphone boundary layer microphone
Specifications TTL levels for LED activation Connection cable Weight Height Diameter Thread Operating temperature high > 2.4 V low < 0.4 V XLR-5F / Terminal connector 5-pin, length 3 m 60 g 90 mm (19 mm above surface) 28.
Manufacturer Declarations Manufacturer Declarations Warranty Sennheiser electronic GmbH & Co. KG gives a warranty of 24 months on this product. For the current warranty conditions, please visit our website at www.sennheiser.com or contact your Sennheiser partner.
Manufacturer Declarations Trademarks Sennheiser is registered trademark of Sennheiser electronic GmbH & Co. KG. Other company, product, or service names mentioned in this instruction manual may be the trademarks, service marks, or registered trademarks of their respective owners. Adobe® Flash® Player. Copyright © 1996 - 2010. Adobe Systems Incorporated. All rights reserved. Adobe and Flash are trademarks or registered trademarks in the United States and/or other countries.
Manufacturer Declarations be connected to a compatible modular jack that is also compliant. See installation instructions for details. WARNING: The country code must be set correctly in Console to ensure that the unit operates properly when connected to the Telco network, and that it complies with the country’s Telco requirements. Changing this code to a country other than the intended country of operation might cause TeamConnect devices to be noncompliant. 304.
Manufacturer Declarations Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by Sennheiser Electronic Corp. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
Sennheiser electronic GmbH & Co. KG Am Labor 1, 30900 Wedemark, Germany www.sennheiser.com Publ.
