EAW DSA230i, DSA250i owner manual Description, Signal Processing, System Overview

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3.7 Signal Processing

The vertical coverage is determined by programming the module’s digital signal processing.

Use DSAPilot to determine the desired coverage. DSAPilot calculates and optimizes the signal processing required to achieve the desired results.

High pass/low pass filters, parametric EQ, delay, and gain are user adjustable for each of the two inputs.

Figure 3.7a DSAPilot Main

Figure 3.7c DSAPilot EQ / Monitor

Figure 3.7b DSAPilot Steering

Chapter 4 Description

4.1 System Overview

DSAi modules, are variable directivity, self-powered line arrays. Their vertical beamwidth is determined by the settings of an internal DSP (digital signal processor) and power amplifier for each transducer. This provides complete, on-site control over the range of possible vertical beamwidth patterns.

EAW’s Windows-based DSAPilot is used to set the coverage required for each module or cluster. The user-friendly DSAPilot optimizes the required signal processing for the design. This data is then uploaded to the DSAi Series modules in the system. DSAPilot normally communicates with the modules using EIA-485*. An optional CobraNet network interface is available.

*Formerly known as RS-485 (Recommended Standard 485)

4.1.1	DSAi SERIES MODELS
	DSA250i: Full range, 2-way, module
	DSA230i: Low frequency and voice-only module	Figure 4.1.1 DSA250i & DSA230i

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Contents Page Safety Precautions Read this First Precauciones DE Seguridad LEA Esto Primero EC Declaration of Conformity Contents Page Shipping Damage ContentsIntroduction Unpacking Quick Start Audio Signal Connection Chapter Returning Products to EAWComputer Control Connection Daisy Chaining Audio and Computer Signal Between ModulesAC Mains Installation Signal End / Power End Physical InstallationSystem Overview Signal ProcessingDescription 4 DSAi Block Diagrams FeaturesElectronic Engineering Design Applications4a Angled Radiation Pattern Designing DSAi Systems DSAPilotLow Frequency Performance Comparison to Traditional ProductsAnalog Audio and EIA-485 Computer Control Installation2 Audio a & Audio B Recommended Conductor Gauge AWG to 18 AWG / 0.2 mm to 1 mm CobraNet Audio and Computer Control 3 Basic CobraNet DiagramCabling Fault Detect Supervisory Monitoring 3a Single DSAi Fault on 2 PowerCon Plug AC Mains Power Connection4 Fuse Grounding2 Signal End / Power End 3 DSAi Cluster Configurations 4a Wall Mounted 6 Mounting Height Lift the enclosure onto the structure-mounted Wall Brackets Initial Set-Up Acoustical InstallationOperational Functions OperationSignal Monitoring Normal Operation Operational Check ListOperational ‘DOS’ and ‘DONTS’ How to Contact EAW Maintenance and ServiceWarranty Service ItemsAppendices Inspections and MaintenanceDSA250i Only TroubleshootingEIA-485 CobraNet EIA-485 Network NotesSupport For CobraNet Support For EthernetDSAi Connections 3a EIA-485 Example 5c Example One path was to the EIA-485 port. So when B responds 6c Example Right Side Back Mechanical DrawingsRight Side Wall Bracket Full Scale