The Control Unit is the main component of the CCS 1000 Digital Discussion System. It supplies DC power to all connected Discussion Devices and monitors and controls the discussion system.

Touch‑button control allows for easy configuration and operation of the unit, while intuitive LED indicators give a clear indication of the system settings. Conveniently positioned connections at the rear of the unit enable peripheral equipment to be connected to the discussion system, such as audio equipment and Bosch HD Conference Domes. Intuitive web browser control allows basic and advanced system settings to be easily viewed and changed, as required.

Two types of Control Unit are available:

• CCSD-CURD that has additional features such as MP3 recording and Digital Acoustic Feedback Suppression (DAFS). The four RCA outputs at the rear of the CCSD-CURD ensure that the unit is optimized for use in courtrooms, i.e. for the recording of individual speakers.


*Thumb drive not included

Bosch CCSD-CURD CCS 1000 D Control Unit Recorder DAFS

Color: Black
  • Plug-and-play functionality

    The plug-and-play functionality of the Control Unit allows Discussion Devices and system cameras to be conveniently connected to and removed from  the system as required. A power down or restart of the system is not necessary, which ensures for fast installation and reconfiguration times.

    Web  browser control

    Basic and advanced system settings, including microphone management and recording options, can be easily viewed and managed/configured by using a web browser in combination with a tablet, laptop or PC.  Changes made in the web browser are automatically updated in the Control Unit and vice‑versa. An option in the web browser allows the Control Unit and connected devices to be automatically shut down for energy saving purposes. To prevent unauthorized access to system settings, separate login  rights are  available for operators and technicians.

    Open  microphone control

    The maximum number of microphones that can  be activated by pressing the microphone buttons on the Discussion Devices can  be selected with the ‘Number of Open Microphones’ (NOM)  button on the Control Unit.

    A maximum of four  microphones can  be selected on the Control Unit.  This can  be further extended to 10 microphones in the web browser.

    Discussion control

    One  of the following microphone modes can  be

    selected by pressing the ‘Microphone-mode’ button on the front of the Control Unit:

    •   Open mode – Participants can  speak by pressing their microphone buttons. When the maximum number of open microphones is reached, the next participant that presses their microphone button is added to a waiting list.  The first participant in the ‘waiting list’ is allowed to speak when an  activated microphone is disabled.

    •   Override mode – Participants can  override each other by pressing their microphone buttons. When the maximum number of open microphones is reached, the next participant that presses their microphone button will deactivate the microphone that has been activated for the longest time (the chairperson’s microphone is not included in the number of open microphones and, therefore, cannot be overridden by a participant).

    •   Voice activation mode – Participants can  activate their microphones by speaking into them. A microphone can be temporarily muted by pressing and holding down the microphone button.

    •   Push to talk  (PTT) mode – Participants can  speak by pushing and holding in their microphone buttons. The microphone is deactivated when the microphone button is released. The maximum number of participants that can  speak is determined by the number of open microphones.

    Interface for peripheral equipment

    The Control Unit enables the following equipment  to

    be connected to the CCS  1000 Digital  Discussion


    •   System cameras – for giving  a clear visual overview of the proceedings. A maximum of six Bosch HD Conference Dome cameras can  be connected to the system with native support (the camera presets can be configured in the web browser).

    •   External wired or wireless microphone – to allow a guest speaker or an  audience to participate in a discussion

    •   Sound reinforcement system – for transmitting the proceedings to an  audience in the same room or an adjacent room

    •   Audio  equipment – for broadcasting music through the loudspeakers of the discussion system

    •   External audio processor – for modifying the floor signal distributed to the participant loudspeakers and headphones (i.e. equalizing)

    •   Telephone coupler – to allow a remote participant to join  a discussion via a telephone/video connection

    •   External recorder – for recording and playing back discussions

    •   Computer (connected via micro USB connector at rear of Control Unit)  – for transferring recordings (discussions) from  the internal memory of the Control Unit

    Built-in  MP3 recorder

    (CCSD-CURD only)

    The built‑in recorder can  record discussions in the MP3 format to the internal memory or a USB memory stick with a maximum capacity of 128  GB, which can store up  to 4,000 hours discussion. To ensure that discussions are  manageable, recordings are  divided into files  of one hour’s duration containing the date and time of recording.

    •   Internal memory – recordings are  automatically saved in the internal memory unless a USB memory stick is connected to the USB connector at the front of the Control Unit.  The internal memory can  record up  to 8 hours discussion.

    •   USB memory stick – recordings are  automatically saved to a USB memory stick when it is connected to the Control Unit.  A USB memory stick of 128  GB can record up  to 4,000 hours discussion.

    LED indicators inform users when data is being recorded to the internal memory or USB memory stick. Three short beeps and a red flashing LED indicate when 5 minutes of recording are  left. A long  beep and a red/green flashing LED indicate when it is not possible to record a discussion (i.e. internal memory full and USB memory stick not connected to the Control Unit,  USB memory stick full or damaged).

    Built-in  monitor loudspeaker

    (CCSD-CURD only)

    The built-in loudspeaker and headphone socket allows for:

    •   live monitoring of a meeting from  the CCSD-CURD Control Unit

    •   prelistening of audio files  before replaying them to the Floor.

    Built-in  Digital Acoustic Feedback Suppression

    (DAFS) (CCSD-CURD only)

    The built-in Digital  Acoustic Feedback Suppression (DAFS)  feature suppresses acoustic feedback (also known as ‘howling’ or ‘Larsen effect’). This improves speech  intelligibility by allowing the speaker volume to be set as loud as required without any  risk  of acoustic feedback.

    Controls and Indicators

    •   Mains power on/off button with red/green LED

    indicator. Red  indicates that the system is off (no power available from  the external power supply). Green indicates that the system is active (Control Unit and all connected devices powered up).

    •   Plus/minus buttons for setting the volume range of all connected Discussion Devices – used in combination with LED indicators for showing the selected volume

    •   Microphone-mode button for selecting one of the microphone operating modes – used in combination with LED indicators for showing the selected mode

    •   Open microphone button for selecting the number of microphones that can  be activated at the same time – used in combination with LED indicators for showing the number of activated microphones