DBC Network Bridge

4 Operation

4.8 General Firmware Features

Note: The following features are accessed via IQwic software unless otherwise stated. Refer to Figure 4.24, DBC Network Bridge Signal Flow Block Dia- gram for feature locations in the audio signal chain.

4.8.1 Input Level Meters

Audio level peak program meters are provided for each input. The meters sense the audio signal immediately after analog to digital conversion, and respond with 1.7 millisecond attack and 350 milli- second release. Meter range is from –60 to +20 dBu with 0.5 dB resolution. Calibration is in dBu when the input is in “line” mode and set at 0 dB.

4.8.2 Input Dynamic Cut/Boost Meters

Meters are provided for each Input A/B Processing Section to indicate the overall cut or boost being applied from all signal processing features that affect input gain, including Auto-Leveler, Input Compressor, and Auto-Mixing. Meter range is from –60 to +20 dBu with 0.5 dB resolution.

4.8.3 Output Level Meters

Audio level meters are provided for each output. The

4.8.5 Memory Backup

The DBC Network Bridge settings are stored in high-endurance flash memory whenever a parame- ter is changed. Changed settings are updated every few seconds.

4.8.6 Presets

The parameters for all functions in the DBC Network Bridge can be saved as presets and each can be given a unique 32-character name. A total of 32 user presets can be stored in the DBC Network Bridge’s flash memory. Presets can be recalled via the front-panel selector buttons, IQ for Windows preset selector controls, from within events, or by an external system controller via the Multi-Function Control Port.

•Preset Segue: When a preset is selected, the Preset Segue feature provides a smooth transition to the new preset. Preset Segue can be set to either a fixed time in seconds or a fixed rate in dB per sec- ond. Range for fixed time in seconds is 1 to 255 seconds. Range for fixed rate in dB per second is from 0.5 dB to 40 dB.

4.8.7 Real Time Clock

Power Supply

100 VAC - 240 VAC 50/60 Hz

System Control

Front

Display

DSP

Audio

Audio

Input

Output

meters sense the audio signal immediately after the audio output processing block, and respond with 1.7-millisecond attack and 350-millisecond release. Meter range is from –60 to +20 dBu with 0.5 dB resolution.

4.8.4Output Dynamic Cut/Boost Meters

Meters are provided for each output to indicate the overall cut or boost being applied from all signal processing features that affect output gain, includ- ing Ambient-Leveler and Output Limiter. Meter range is from –60 to +20 dBu with 0.5 dB resolu- tion.

The onboard Real Time Clock tracks day, date, hour, minute and second, and may be set to any date and time desired, or to match that of the computer run- ning IQ for Windows software. The clock is used as a time reference for the Events Scheduling feature. Internal capacitor storage allows the clock to run for up to 45 days without power being applied to the DBC Network Bridge.

4.8.8 Events

User presets can be scheduled for recall as an Event at a specific date and time, and also can be set to repeat. A total of 32 Events can be scheduled, and each Event can be given a unique 32-character name.

Control

 

 

 

Port

8

Digital DB25 inputs

CobraNet

 

 

8

Analog DB25 inputs

 

 

 

2

Auxiliary analog inputs

 

Figure 4.24 DBC Network Bridge Signal Flow Block Diagram

Operation Manual

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Crown 137769-3 General Firmware Features Input Level Meters, Input Dynamic Cut/Boost Meters, Memory Backup, Events
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