CCS-CU Control and Power Supply Unit
- Conference control without operator
- Four selectable microphone modes and a test mode
- Controls up to 150 contribution units
- Interfaces the system with external audio equipment
- Provides power for 50 contribution units
- Built-in listening facilities
The Control and Power Supply Unit (CPSU) is the heart of a discussion system. This versatile unit incorporates a digital acoustic feedback suppression facility, which allows any acoustic feedback (also known as “howling”) to be automatically eliminated.
Other included features are: managing the number of active microphones and determining the operating mode, without the need for a central operator. External equipment can be connected to extend system possibilities. A built-in loudspeaker allows the conference to be monitored (to allow a stenographer, for example, to take notes on the conference).
Discussion control without operator
The CU can be setup to operate standalone without the need for an operator. The following 5 modes can be chosen using a rotary control on the unit’s top panel:
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Open mode – allows selection of one to four microphones (excluded chairmen microphones) which can be simultaneously active
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Open mode with auto-switch-off – allows selection of one to four microphones (excluded chairmen microphones) which can be simultaneously active. If the delegate does not speak for 30 seconds, microphones are automatically switched off
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Override mode – delegates can override each other simply by activating their microphones. Only one microphone can be active at any one time. (Note: In override mode, delegates cannot override chairmen)
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Chairman only mode – only chairmen can speak. Delegate microphones cannot be activated, even when a chairman is not speaking
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Test mode –checks if system connections are correct. All microphone light rings and contribution unit LEDs
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light up to indicate that units are properly connected
Supplies power for up to 50 contribution units
The CU has two trunk outputs for the loop-through connection of contribution units. It is possible to connect 25 contribution units to each trunk output, with a maximum system cable length of 100 m (109.3 yards).
Provides control for up to 150 contribution units
Up to 3 CUs can be used together in a discussion system to power and control a maximum of 150 contribution units. In this configuration a single CU acts as a master controller for the entire system.
Built-in monitor loudspeaker
The built-in monitor loudspeaker and headphone socket allow the conference to be monitored. |
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Interfaces the system with external equipment
The following equipment can be interfaced to the CCS 900 Ultro Discussion System through the CU:
- External wired or wireless microphone – for guest speakers or audience participation. (Note: The external microphone is muted when the priority button on a chairman unit is pressed, and when the system is operating in ‘chairman only’ mode).
- External PA system – for transmitting the proceedings to an audience in the same room or an adjacent room
- Tape recorder – for external recording and playing back meetings and discussions
- Audio equipment – for providing background music
- Telephone coupler – to allow a remote delegate to participate via telephone
- External audio processing – an insertion connector is provided
Controls and Indicators
Top
- Mains on/off switch
- Graphical display for status information (CCS-CUR, CCS-CURD)
- 5 soft buttons for configuration and control of the built-in MP3 recorder (CCS‑CUR, CCS‑CURD)
- Loudspeaker volume control, for setting output level of loudspeakers of contribution units. This control also determines the maximum level for the headphone outputs of the contribution units and the CU.
- Microphone mode rotary switch, for setting the number of simultaneously active microphones, and selecting one of the four operation modes (plus test mode)
- Power on LED Back
- On/off switch for digital acoustic feedback suppression facility (CCS‑CUD, CCS‑CURD)
- Microphone input gain adjustment
- External recorder input gain adjustment
- Insertion connector bypass switch
Interconnections
Top
- 1 x 3.5 mm (0.14 inch) stereo headphone socket
Back
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2 x 7-pole circular female connectors, trunk in/out loop through interconnection
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1 x 3-pole female XLR connector, microphone input (can be used as line input by included 50dB attenuator)
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1 x Cinch connector pair, line input/output
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1 x Cinch connector pair, telephone input/output
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1 x Cinch insertion input/output
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2 x Cinch connector pairs (R/L channel), external recorder input/output
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USB interface (CCS‑CUR, CCS‑CURD)
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