Sennheiser SDC 3000 System Manual
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Sennheiser SDC 3000 System Manual

Sennheiser SDC 3000 System Manual

Sdc conference system
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Summary of Contents for Sennheiser SDC 3000

  • Page 1 SDC Conference System System Manual...
  • Page 3 SDC Conference System System Manual Installation and Operating Manual...
  • Page 4 Over half a century of accumulated expertise in the design and manufacture of high-quality electro-acoustic equipment have made Sennheiser a world-leading company in this field. Please take a few moments to read these instructions carefully, as we want you to enjoy your new Sennheiser products quickly and to the fullest.

  • Page 5: Table Of Contents

    Overview Contents Safety information SDC – the digital conference system The components of the SDC conference system Structuring the SDC conference system Setting up the conference system Configuring the conference system Operating the components of the conference system PC operation of the SDC conference system The “SDC 3000 Configuration”...

  • Page 7: Safety Information

    SDC 3000 DC delegate unit ........

  • Page 8: Configuring The Conference System

    Turning the central unit on ........49...

  • Page 9: The "Sdc 3000 Configuration" Program

    Exiting the configuration program ......88 Creating a detailed location plan ....... . . 89 Adding a conference console icon .

  • Page 10: The "Sdc 3000 Control" Conference Management Program

    Setting the speaker limit ........

  • Page 11: Safety Information

    Ensure sufficient air circulation in the vicinity of the power supply units and the central units. Do not cover any air vents. There must be at least 10 cm (3.9 in.) of open space around the air vents of the power supply units and central units.
  • Page 12 Safety information...

  • Page 13: Sdc - The Digital Conference System

    600 participants. An important feature of the SDC conference system is its modular design. Even if, at first, the system is only required for small conferences, you can later easily add conference consoles and a software contro programl. In...

  • Page 14: The Components Of The Sdc Conference System 15

    The console’s electret microphone transmits every word in excellent audio quality. The red signal light ring on the microphone serves as an indicator of who is allowed to take the floor, who has “applied” for a comment, etc. The conference participants can participate in voting sessions from the consoles.

  • Page 15: The Power Supplies

    The technology used The power supplies One power supply can power up to 25 consoles. For setting up conference systems with more than 25 consoles, simply add power supplies. The system cables Power supply of the conference consoles is via the system cables which also transmit the digital audio and status information.
  • Page 16 The technology used...

  • Page 17: The Components Of The Sdc Conference System

    27). The delegate units Two delegate unit versions with varying levels of functions are available. The SDC 3000 DC delegate unit differs from the SDC 3000 D in the following features: an additional key for selecting an interpretation channel...

  • Page 18: Sdc 3000 D Delegate Unit

    In voting mode: In conference mode: key * In voting mode: In conference mode: In voting mode: ABSTAIN Red LED Headphone connection, 3.5 mm jack socket (mono) 8-pole socket (IN) 6-pole socket (OUT) * (only operative when configured as a chairperson unit)

  • Page 19: Sdc 3000 Dc Delegate Unit

    In voting mode: ABSTAIN Red LED SELECT key for channel selection LC display for channel / volume VOLUME Headphone connection, 3.5 mm jack socket (mono) 8-pole socket (IN) 6-pole socket (OUT) * (only operative when configured as a chairperson unit)

  • Page 20: Sdc 3000 Cu Central Unit

    25-pole sub-D socket for output signal (CONFERENCE OUT) 9-pole sub-D socket, RS 232 interface for connecting a computer 25-pole sub-D socket for output signal (INTERPRETER OUT – 11 channels) 25-pin sub-D connector for input signal (INTERPRETER IN – 11 channels)
  • Page 21 The central unit serves to manage conference systems with up to 150 conference consoles. For larger conference systems with a maximum of 600 consoles, you can interconnect up to four central units via the system cables (see “Possible expansion stages” on page 27).

  • Page 22: Sdc Ps 25 Power Supply

    SDC PS 25 power supply In small conference systems with up to 25 conference consoles, the consoles are powered via the integrated power supply of the central unit. If your conference system comprises more than 25 consoles, one additional power supply per 25 consoles is required (see “Possible expansion stages”...

  • Page 23: The System Cables

    Via the system cables with lengths of 5 m, 10 m, 20 m and 80 m, you connect the cable strings to the central units (see “Possible expansion stages”...
  • Page 24 The system cables...

  • Page 25: Structuring The Sdc Conference System

    In the following examples, the standard length of “3 m” is always given for the system cables between the conference consoles. However, it is no problem to use other cable lengths or cables of differing lengths within the same string.
  • Page 26 3. string: 8 conference consoles The distances between the central unit and the first conference console of a string can vary or not, but the maximum distance of 80 m must not be exceeded. The length of the system cables between two consoles is typically 3 m so that one cable string is not longer than 155 m.

  • Page 27: Expansion Stage (2): Up To 50 Conference Consoles

    The central unit’s integrated power supply powers the 25 conference consoles of cable string II. For the subsequent 25 consoles of cable string II as well as for cable strings I and III, a total of five additional power supplies is required.

  • Page 28: Expansion Stage (4): Up To 600 Conference Consoles

    PC controlled, the PC must be connected to the “master” central unit. To set up a conference system with up to four central units, you first have to interconnect the cable strings of each central unit as described for conference systems of expansion stage (3) (see “Expansion stage (3): up...
  • Page 29 Possible expansion stages ≤ 3 m RS 232 ≤ 3 m ≤ 230 m...

  • Page 30: Determining Maximum Cable Lengths

    However, if you want to use longer cables, make sure that all conference consoles – including the last one in a string – are supplied with a voltage of at least 20 V! Calculating the voltage drop on the system cables Every meter of system cable and every conference console in a string causes a voltage drop.

  • Page 31: Attenuation Characteristics Of The System Cables

    33 V - 11.6 V = 21.4 V This voltage must be higher than 20 V! If the voltage is lower than 20 V at the last conference console, you must either use shorter cables in this cable string or connect less conference consoles.

  • Page 32: Selectable Conference Modes

    If a conference has more than one chairperson, their chairperson units function like normal conference consoles, i.e. the chairpersons can take the floor immediately, provided that the preset speaker limit has not yet been reached. If the limit for simultaneously active...

  • Page 33: Overrun" Mode

    If the speaker limit has been reached and the next participant presses the to join in the discussion, the microphone of the first speaker in the discussion group will be turned off (FIFO First-In-First-Out).

  • Page 34: Request" Mode

    In “Request” mode, – depending on the speaker limit – a maximum of six participants can take the floor simultaneously. In addition, the next nine participants who make a request to speak will join a request-to-speak list.

  • Page 35: Additional Equipment For Your Conference System

    Connecting wireless microphones In order to enable a speaker to move around freely and to speak from anywhere in the room, you can even connect wireless microphones to the SDC conference system.

  • Page 36: Transmitting The Floor Channel To Broadcasting And Tv Stations

    XLR-3M audio output. With international conferences, however, the signals of the floor channel and the up to 11 interpretation channels should be available at one of the two 25-pole sub-D sockets, so that broadcasting and TV stations worldwide can transmit contributions to the conference in the desired language.

  • Page 37: The Voting Function

    However, only these votes are counted which were cast in the preset voting time. The number of participants who didn’t cast their vote is not recorded. The result of the vote (yes-votes, no-votes and abstentions) is indicated...
  • Page 38 The voting function...

  • Page 39: Setting Up The Conference System

    Connect the mains cable to the mains (100–240 V, 50–60 Hz). Rack-mounting the system components For larger conference systems, we recommend mounting the system components into a rack. To do so, screw the supplied rack mount “ears” to the front panel of the central units or power supplies. Power supply Connect the mains cable to socket Connect the mains cable to the mains (100–240 V, 50–60 Hz).

  • Page 40: Interconnecting The Components Of The Conference System

    2. integrate the required number of power supplies into the cable strings (expansion stages (2) to (4)), 3. interconnect the central units, 4. connect a PC to the “master” central unit if the system is to be PC controlled (PC control optional). Interconnecting the conference consoles The conference consoles are interconnected via the 8-pole socket (IN) and the 6-pole socket (OUT) on their bottom side.

  • Page 41: Connecting The Power Supplies

    (see “Expansion stage (1): up to 25 conference consoles” on page 27). Via the 8-pole socket (IN) and the 6-pole socket (OUT) on their bottom side, the consoles are connected to the power supply units.

  • Page 42: Interconnecting Up To Four Central Units

    “master” central unit. The subsequent central units are linked as “slaves”. If the conference system is to be PC controlled (optional), the PC has to be connected to the “master” central unit. Even small conference systems with up to 150 consoles and only one central unit can be PC controlled.

  • Page 43: Connecting Additional Equipment

    Connecting additional equipment Connecting additional equipment Connecting headphones to a conference console If you connect headphones to a conference console, the console’s built-in loudspeaker will be muted. § Connect Sennheiser mono headphones to the 3.5 mm mono jack socket. First, use the...

  • Page 44: Connecting An External Audio Source

    (see “Connecting a wireless microphone system” on page 47), mixing consoles etc. to the conference system. The audio sources to be connected must deliver a balanced mono signal at the XLR-3F socket. Depending on the strength of the audio signal, you can increase the input sensitivity of the conference system by 20 dB.

  • Page 45: Connecting A Wireless Microphone System

    Connecting additional equipment Connecting a wireless microphone system The ew 565, ew 522, ew 365 and ew 322 wireless microphone systems of the Sennheiser evolution wireless series contain either radio microphones or clip-on microphones with bodypack transmitters which can be used together with the SDC conference system.

  • Page 46: Transmitting The Floor Channel

    Connecting additional equipment Transmitting the floor channel The floor channel and up to 11 translations are available at the two 25-pin sub-D sockets CONFERENCE OUT INTERPRETER OUT . You can, for example, connect an infrared multi-channel transmitter to these sockets or transmit the floor channel together with the translations to broadcasting and TV stations.

  • Page 47: Turning Central Units And Power Supplies On And Off

    The red signal light ring and the LED on all connected conference consoles light up for approx. three seconds, then flash up twice and go off again. These conference consoles are now ready for operation. Turning the central unit off...

  • Page 48: Turning The Power Supplies On

    The red signal light ring and the LED on all subsequent conference consoles light up for approx. three seconds, then flash up twice and go off again. These conference consoles are now ready for operation. If, after turn-on, the LED on some or all consoles starts flashing, an error has occurred.

  • Page 49: Configuring The Conference System

    , the submenus have a two-digit number – the first digit refering to the corresponding Main menu level main menu. The second and third level of the submenus have the same numbers as the first level. BEGIN VOTING Voting time Submenu –...

  • Page 50: The Four Menu Buttons

    Introduction to the central unit’s operating menu The four menu buttons buttons on the central unit allow you to navigate through the operating menu. to return to the previous menu item, main menu order: from right to left to return to the previous menu item,...

  • Page 51: Structure Of The Central Unit's Operating Menu

    In the menu tree, the following information is given for each menu item: the buttons that have to be used to get to the desired menu item the setting(s) that can be adjusted the buttons that have to be used for adjusting the setting(s)
  • Page 52 Structure of the central unit’s operating menu the button that has to be used if you want to quit a menu item without saving the setting(s) the menu item to which the program returns after you have saved your setting...
  • Page 53 Structure of the central unit’s operating menu The seven main menus Sennheiser SDC 3000 V 3.0 Volume: ..MENU LANGUAGE Conference Voting XLR-out/in Save Load System Language CONFERENCE Voting XLR-out/in Save Load System Language Conference VOTING XLR-out/in Save Load System...
  • Page 54 Structure of the central unit’s operating menu Menu structure of the CU (1)
  • Page 55 Structure of the central unit’s operating menu Menu structure of the CU (2)
  • Page 56 Structure of the central unit’s operating menu Menu structure of the CU (3)
  • Page 57 Structure of the central unit’s operating menu Menu structure of the CU (4)
  • Page 58 Structure of the central unit’s operating menu Menu structure of the CU (5)

  • Page 59: Setting The Volume Of The Consoles' Built-In Loudspeakers

    Setting the volume of the consoles’ built-in loudspeakers Setting the volume of the consoles’ built-in loudspea- kers Via the start display, you can change the volume of the consoles’ built-in Sennheiser SDC 3000 V 3.0 loudspeakers. You can set the volume between 1 and 8.

  • Page 60: Configuring The Chairperson Units

    Configuring the chairperson units Configuring the chairperson units Up to four delegate units can be configured as chairperson units. A chairperson unit is given special priorities and functions which depend on the conference mode chosen. Defining the chairperson unit With the buttons, choose the main menu item [CONFERENCE].

  • Page 61: Cancelling The Chairperson Function Of A Chairperson Unit

    CONFIGURE Delete all Press the button to activate this menu item. The number of conso- les configured as chairperson units is indicated and the red signal light ring and the LED of these consoles light up permanently. Press the MIC key of the chairperson unit whose chairperson function you want to cancel.

  • Page 62: Setting The Speaker Limit

    Voting The SDC 3000 conference system is equipped with a voting function. The chairperson or conference manager can activate the voting function via the central unit’s operating menu. The normal conference operation is...
  • Page 63 By using the MIC, keys, the participants can now cast their vote. If a participant has cast his or her vote, the red signal light ring and the LED go off. If the allocated voting time has elapsed, the red...
  • Page 64 Voting...

  • Page 65: Operating The Components Of The Conference System

    Operating the delegate units Adjusting the headphone volume (SDC 3000 DC only) Via the connected headphones you can listen to the floor channel or, if an interpretation system is connected, to one of the translations offered. First, use the...

  • Page 66: Making A Request To Speak

    LED on your console light up permanently, indicating that you can now take the floor. If the speaker limit has been reached, you will join a waiting list. In this case, the signal light ring and the LED on your console start flashing.

  • Page 67: Voting

    Once you have cast your vote, the red signal light ring and the LED on your conference console go off. If the preset voting time is over, the red signal light ring and the LED on all conference consoles go off, even...

  • Page 68: Operating The Chairperson Unit

    If a conference has more than one chairperson, and if the chairperson channel is already used by one of the chairpersons, the units of the other chairpersons function like normal delegate units (see “Making a request to speak”...

  • Page 69: The P2 Key

    , the chairperson turns off all active microphones regardless of the conference mode. There is dead silence in the conference room and the chairperson can then re-start to pass on the “speaking right” to the participants who are waiting to speak.
  • Page 70 Operating the chairperson unit...

  • Page 71: Pc Operation Of The Sdc Conference System

    The delegate and chairperson can be used as before. For PC controlling the SDC conference system, you require the “SDC 3000 Config” and “SDC 3000 Control” software and at least one PC that has to be connected to the “master” central unit.

  • Page 72: The "Sdc 3000 Control" Conference Management Program

    View-PC in order to allow all participants to see who is currently speaking or who has made a request to speak, and in order to show voting results.

  • Page 73: System Requirements

    Graphics card, 15" TFT flat screen or 17" monitor with a resolution of 1024 x 768 pixels or higher network card for for connection to a network or a PC for controlling the conference system Microsoft Windows 2000, NT, 98, 98 SE or 95.

  • Page 74: Connecting The Computers

    With most computers, the serial interface corresponds to COM port 1 (or 2). If you want to use a separate View-PC, you have to connect it to the Central Connect both computers via an Ethernet network. Via the configuration program, enter the IP address of the View-PC (see “Entering the address of the View-PC (optional)”...

  • Page 75: Installing The Software

    “Start\Programs” the program icon is to be created. You can also create a new program group Insert the dongle into a free USB port or parallel port of the Central PC. Make sure that the central unit of your conference system is connected to the Central PC and turn the central unit on.

  • Page 76: Removing The Software

    Removing the software Removing the software To completely remove the SDC software from the hard disk of your computer, proceed as follows: Click “Start” (= Start button) and select “Settings” and “Control Panel” one after the other. Double-click “Add/Remove Programs”.

  • Page 77: The "Sdc 3000 Configuration" Program

    All settings of a conference are saved in a configuration file (*.cfg). The screen of the configuration program The screen of the “SDC 3000 Configuration” program consists of:...

  • Page 78: The Title Bar

    The screen of the configuration program The title bar The title bar is at the top of the screen. The title bar shows the program icon and the name of the program and contains the buttons for minimizing, restoring, and closing the program window.

  • Page 79: The "Editor" Dialog Box

    You can move the “Microphone Information” field around by dragging and dropping it with the mouse. In addition, you can enlarge or minimize the field by pointing at one of the eight red sizing handles with the mouse button. Click and hold down the mouse button to move the “Microphone Information”...

  • Page 80: The "List Microphones" Dialog Box

    The status bar, located at the bottom of your screen, displays the current date and time, the file name and path of the currently open configuration file as well as the position of the mouse pointer in the “Editor” window.

  • Page 81: The Menus Of The Configuration Program

    (its title bar is displayed in blue). If no check mark is displayed in front of the name of a dialog box this indicates that the dialog box is not active (its title bar is displayed in grey) or that the dialog box is in the background.

  • Page 82: The "Help" Menu

    [Paste]) or delete (see the button [Delete]) objects. In addition, you can align the conference console icons along the grid of the “Editor” dialog box (“Align to Grid”), re-group overlapping conference console icons and open the “Properties” dialog box.

  • Page 83: Creating, Opening And Saving Configuration Files

    [New] Creating a new configuration file Before you can control a conference via the SDC 3000 software for the first time, you must first create a configuration file. Start the “SDC 3000” program. The “SDC 3000” dialog box opens.
  • Page 84 Select the design of the conference console icons in your configuration. Select “Type 1” if you prefer a design similar to the following examples: Select “Type 2” if you prefer a design similar to the following examples or if your conference has less than 150 participants: Select “Type 3”...

  • Page 85: Opening A Previously Saved Configuration File (*.Cfg)

    The configuration file is saved under the name and in the folder in which it was last saved. If you save this file for the first time, specify the file name and the folder in which the file is to be saved.

  • Page 86: Starting The Conference Management Program

    Creating, opening and saving configuration files [Start Control] Starting the conference management program After you have created a configuration file and assigned the microphone addresses (see “Assigning microphones to the conference console icons” on page 102), you can directly switch to the conference management program.

  • Page 87: Creating A Detailed Location Plan

    To add a conference console icon: Create a new configuration file (siehe: „Creating a new configuration file“ auf Seite 85) or open a configuration file that you want to edit (siehe: „Opening a previously saved configuration file (*.cfg)“ auf Seite 87).

  • Page 88: Positioning The Conference Console Icons

    Creating a detailed location plan Positioning the conference console icons To move a conference console icon to a new location on the screen: To move several conference console icons simultaneously, hold down the mouse button while you draw a rectangle around the group of conference console icons to be moved.

  • Page 89: Editing The "Editor" Window

    You can display or hide this grid. From the “Editor” menu, choose “Show Grid”. If the command is marked with a check mark, the grid is displayed. If there is no check mark in front of the “Show Grid” command, the grid is hidden.

  • Page 90: Editing The "Microphone Information" Field

    Re-start the program. The selected *.bmp file is now used as “wallpaper”. Note: Please note that your *.bmp file is scaled to the full screen size of the “Editor” window. This can result in slight distortion or negatively affect the resolution.
  • Page 91 Creating a detailed location plan Click “Visible” if the “Microphone Information” field is neither to be displayed in the configuration program nor in the conference management program. The check mark disappears. The “Microphone Information” field is not displayed and the conference management program cannot display...

  • Page 92: Editing The Conference Console Icons

    (see page 95), assign the chairperson status (see page 95), enter a short labelling for the console icon and select the font type and size (see page 95), set the border width for a console icon...

  • Page 93: Assigning The Name Of A Conference Participant To A Conference

    Enter the name of the conference participant. Click the button behind the “Name” field. If you now move the mouse pointer over an icon (see “The “Editor” dialog box” on page 81), the name of the corresponding conference participant is displayed.

  • Page 94: Changing The Color Of A Conference Console Icon

    Editing the conference console icons Changing the color of a conference console icon Depending on the icon type chosen, you can select the border width as well as the fill color and the background color of a conference console icon in order to be able to distinguish different participant groups.

  • Page 95: Copying Conference Console Icons

    Hold down the mouse button while you move the icon group to the desired position. Paste the copied icons as often as desired. Note: You can also cut ( ), delete ( ) or move groups of icons.

  • Page 96: Specifying The Technical Details And The Conference Mode

    “Environment Configuration” dialog box or press the “F6” key. [Conference Mode] Choosing the conference mode You have to choose one of the three possible conference modes. During a conference, this selection cannot be changed! To choose the conference mode: Open the “Environment Configuration” dialog box (see “Specifying the technical details and the conference mode”...

  • Page 97: Setting The Maximum Speaking Time

    If you do not want to limit the speaking time, select “00:00”. [Voting] Setting the voting time You have to set a time limit for the voting mode. The participants must cast their votes within this time limit. Open the “Environment Configuration” dialog box (see “Specifying the technical details and the conference mode”...

  • Page 98: Specifying The Com Port

    Specifying the technical details and the conference mode [Communication] Specifying the COM port You have to specify the COM port of your Central PC to which you have connected the central unit. Open the “Environment Configuration” dialog box (see “Specifying the technical details and the conference mode”...

  • Page 99: Adjusting The Output Level Of The Xlr Output

    [XLR-Out] Adjusting the output level of the XLR output You can adjust the volume, the bass and the treble response of the central unit’s XLR output signal: Open the “Environment Configuration” dialog box (see “Specifying the technical details and the conference mode” on page 98).

  • Page 100: Assigning Microphones To The Conference Console Icons

    Microphones” dialog box and then press the “MIC” key of the corresponding conference console. The LED next to the “MIC” key as well as the red signal light ring on the microphone light up. In the “List Microphones” dialog box, the three-...
  • Page 101 Every microphone and every power supply is assigned its own address within the string. If you press the “MIC” key of a wrong conference console, first click the corresponding conference console in the “List Microphones” dialog box and then click the button.
  • Page 102 Assigning microphones to the conference console icons...

  • Page 103: The "Sdc 3000 Control" Conference Management Program

    “SDC Config” program. display the names of the current speakers, those who wish to make a contribution, and those who last had the “speaking right”. assign or withdraw the “speaking right” to/from any participant any time.

  • Page 104: Starting The Conference Management Program

    Starting the conference management program You have two options to start the conference management program: First make sure that your Central PC is connected to the central unit via the serial interface and that all conference consoles are correctly connected to the central unit.

  • Page 105: The Screen Of The Conference Management Program

    The screen of the conference management program The screen of the conference management program The title bar The title bar is located at the top of the “SDC 3000 Control” screen. The title bar displays the name of the program, the version number of the program and the name and path of the currently open configuration file.

  • Page 106: The "Chairman" Box

    The “Speaker History” box displays the names of the last nine speakers, giving you an overview of the most recent contributions to the discussion. The name of the last participant is displayed at the bottom of the list, the participant having spoken before is displayed in the row above.

  • Page 107: The "Requests" Box

    The “Requests” box lists all the participants who have made a request to speak. In “Overrun” mode, this box is without data. The names of the chairpersons are only displayed in this box if you have configured several chairperson units and more than one chairperson has made a request to speak.

  • Page 108: Intervening In A Conference

    Intervening in a conference Displaying the name of a conference participant For the manager of a large conference, it can be helpful to know the name of a participant at a certain seat. To display the microphone address and the name of a conference participant: Move the mouse pointer over a conference console icon.

  • Page 109: Taking A Vote

    To take a vote: Click the button in the “Program” box. The main window switches to voting mode. The lists in the “Speaker” and “Request” boxes are cleared. During the voting session, all conference consoles are deactivated. The countdown of the remaining voting time is displayed in the “Time remaining”...

  • Page 110: Adjusting The Volume Of The Conference Consoles' Built-In

    If you want to save the voting result click the button. The result is saved as a *.csv file. This file can be opened and edited with any standard spread sheet program. To terminate the voting mode, click the button once more.

  • Page 111: Adjusting The Xlr Input And Output Levels During A Conference

    Intervening in a conference If you want to reset the volume to the default setting of the configuration file: Click the button. The volume is reset to the default setting of the configuration file. If feedback noise occurs: Click the button.
  • Page 112 Intervening in a conference...

  • Page 113: If Problems Occur

    If problems occur ... Replacing a fuse If the fuse of a central unit or a power supply has blown, the subsequent delegate units cannot be powered. To replace the fuse of a central unit or a power supply, proceed as follows: Use a screwdriver to carefully loosen the fuse holder and pull it out completely.
  • Page 114 Check if the system cable between power supply and delegate unit or central unit and delegate unit is defective or if the system cable has been pulled out. Check if the central unit or the power supply are connected to the mains and if they are turned on.
  • Page 115 Number of delegate units connected to a central unit Via this menu item you can display – for each central unit separately – the total number of delegate units connected to a central unit and the distribution of the delegate units over the connected cable strings.
  • Page 116 Example: You have a cable string with 25 delegate units but only 15 delgate units are indicated on the display. Possible causes: The 16th delegate unit does not receive any data because it is defective.
  • Page 117 System diagnosis Checking the communication within a cable string To choose menu item 7.3 of the central unit’s operating menu, proceed as follows: With the buttons, choose the main menu item [SYSTEM]. Language Conference Voting Press the button to activate this menu item.
  • Page 118 System diagnosis...

  • Page 119: Maintenance And Care

    Replacing the pop screen If the pop screen shows signs of wear such as tears or holes, replace the pop screen. To do so, pull the old pop screen from the microphone and slide on a new one (see “Accessories”...
  • Page 120 Replacing the microphone...

  • Page 121: Accessories

    Installation and operating manual, English 04973 SDC Manual F Installation and operating manual, French 04776 Sennheiser ew 565 Radio microphone system, consisting of the EM 500 rack-mount receiver and the SKM 500 handheld transmitter 04772 Sennheiser ew 522 Radio microphone system, consisting of the...
  • Page 122 Accessories Note: and 89330) to the Have an electronics expert fit the connectors (89329 cables (80521)! Please observe the below pin assignments: pair 1 stranded wire white white blue blue shielding blue power supply orange orange white white pair 2...

  • Page 123: Specifications

    150 Hz to 14 kHz Fan noise: 36 dB (A) PC interface: RS 232 9-pin sub-D Dimensions: approx. 482 x 96 x 375 mm Gewicht: approx. 4.6 kg XLR AUDIO IN: Max. input level: adjustable from -17 dB to +18 dB...
  • Page 124 AF frequency response: 150 Hz to 14 kHz ≥ 32 W Headphone impedance: Dimensions: approx. 192 x 470 x 174 mm Weight: approx. 600 g Additional feature of SDC 3000 DC: Two-digit seven-segment LC diplay visible size: 18 x 11 mm...
  • Page 125 Specifications...
  • Page 126 For up-to-date information on Sennheiser products, you can also visit the Sennheiser Web site at “www.sennheiser.com”. Sennheiser electronic GmbH & Co. KG Telefon: +49 (0) 51 30 60 00 Printed in Germany D-30900 Wedemark Telefax: +49 (0) 51 30 60 03 00...

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