AEQ DIGITAL COMMENTARY UNIT Customer's Manual page 9

1.3.- Commentary Control Unit (CCU)
The Commentary Control Unit (CCU) is designed to control and monitor up to
ten commentator signals from the commentator units, as well as provide the
required remote powering.
Each of the ten modular control sections has:
• a level meter for the PRG output
• an output selector (oscillator, ID, program)
• a digital mixing section, where the selected IS can be added to the
commentary signals to get the PROG/IS feed. The IS signal can be
upgraded by the Digital Level Processor (DLP). Audio parameters
associated with the DLP are fully programmable under the control software.
• A section to enable the AUX and GUIDE signals to the commentator
• A section for the routing and aperture of CUE 1 and CUE 2 signals to the
commentator
• An individual remote control and configuration section for each of the four
CU channels (COM 1, COM 2, COM 3 and MIC/LINE)
• A section for switching and signaling talkback calls
• A line identification section (ID) for the program and coordination circuits.
The monitor unit provides the operator with access to all program and cue
circuits for listening via a built-in speaker or set of earphones. A precision dB
meter is provided to measure absolute levels on all circuits. The unit also has
intercommunication functionality with the program and coordination circuits.
The monitor allows access to the local talk back circuit or a connection to the
external 4 wire circuit.
The power supply section, located on the rear panel, consists of two
independent modules, giving the redundancy level required for these types of
events. Each one of the modules is thus able to fulfill the power requirements of
the CCU and the associated CUs. The power supply design includes advanced
techniques like power factor correction, input voltage autoranging, high
efficiency switching conversion, etc.
Digital Commentary System
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