Bosch CCSD-CU Control Unit For CCS 1000D Digital Discussion System

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 makes for fast installation and reconfiguration.

Basic and advanced system settings, including microphone management and recording functions, can be easily viewed and managed/configured by using a web browser in combination with a tablet, laptop, or desktop computer. Changes made in the web browser interface are automatically updated in the Control Unit and vice versa. Via the web browser, the Control Unit and connected devices can be set to be automatically shut down for energy saving purposes. Separate login rights are available for operators and technicians to prevent unauthorized access to system settings.

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.

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 his 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 his 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.

The Control Unit enables the following equipment to be connected to the CCS 1000 Digital Discussion System:

• 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.

Features

• Plug-and-play functionality for quick and easy connection of up to 80 Discussion Devices to a single Control unit (the system can be expanded to a maximum of 245 Discussion Devices by using Extension Units CCSD‑EXU)
• Intuitive web browser interface control for advanced configuration and control
• On-board support for automatic HD camera control
• Touch‑button control allows for easy configuration and operation of the unit, while intuitive LED indicators give a clear indication of the system settings
• Connections at the rear of the unit enable peripheral equipment to be connected such as audio equipment, Ethernet switches, video switches, HD Conference Domes (ONVIF protocol compatible), and PC or laptop

Specifications

Supply voltage Adaptor	100 to 240 VAC, 50/60 Hz
Current Consumption voltage Adaptor	1.9 A (100 VAC) to 1 A 240 (VAC)
DC voltage Control Unit	24 V, 6.0 A
Maximum number of Discussion Devices for Control Unit (without Extension Unit)	40 Discussion Devices per trunk 80 Discussion Device in total 24 V, Max 5.2 A (short-circuited protected)
Discussion Device loudspeakers volume control	15 steps of 1.5 dB (starting from -10.5 dB)
Limit threshold level to unit	12 dB above nominal level
Gain reduction due to number of open microphones (NOM)	1/SQRT (NOM)
Sample rate	44.1 kHz
Frequency response	30 Hz to 20 kHz
Ethernet speed	1 Gb/s

Nominal input (85 dB SPL)	< 0.5%
Max. input (110 dB SPL)	< 0.5%

XLR nominal microphone input	-56 dBV
XLR maximum microphone input	-26 dBV
RCA nominal input	-24 dBV (+/- 6 dB)
RCA maximum input	+6 dBV
S/N	> 93 dBA
Frequency response	30 Hz to 20 kHz
THD	<0.1%

RCA nominal output

-24 dBV (+6/- 24 dB)