EAW DSA250i, DSA230i owner manual Operational Functions

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Chapter 6 Operation

This section provides details about DSAi operation. The general operation of a DSAi module is similar to the operation of most loudspeakers. Initial system set-up and overall tuning adjustments detailed in this Chapter must be made using DSAPilot. For details about using DSAPilot functions refer to the DSAPilot Help File. Operation is largely concerned with adjusting the operating levels, avoiding excessive input signals and, if needed, making in-performance “voicing” adjustments using external equalization.

These operation instructions assume that the module has ac mains, audio signal, and computer control lines properly connected, and that they are passing signals correctly.

6.1 Operational Functions

There are several, unique functions that affect and enhance operation. These include Power Management, LED Indicator, and signal Monitoring.

6.1.1 POWER MANAGEMENT

The Power Management feature is a power saving function that improves energy efficiency. This feature automatically puts the DSAi amplifiers into stand-by mode similar to a computer monitor. The initiation of this mode occurs after the input signal is absent for a period of time.

Enable or disable this function using DSAPilot. If enabled, the period of time the input signal must be absent before entering stand-by is adjustable. In addition, DSAPilot allows forcing the standby condition should the need arise to de-activate the amplifiers without disconnecting the ac mains.

6.1.2 LED INDICATOR

The LED Indicator located on the front of a DSAi module at the “Signal End” can be set to indicate the status of several operating conditions. Enable or disable each indication using DSAPilot. The actual conditions monitored by the LED are not affected by enabling or disabling the LED indication.

1Initialization: The LED on the “Signal End” will flash rapidly for about 3 seconds when first powered on. This is normal and indicates the electronics are being initialized. The LED should then go off. This indication is permanently enabled.

2.Input Clip: If this indication is enabled, random flashing shows that the audio input signal is clipping the A to D converters at the input. To correct this condition, reduce the input signal level at the source. Because the input gain is after the A to D converters, the DSAi input gain adjustment will have no effect on this condition.

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Contents Page Safety Precautions Read this First Precauciones DE Seguridad LEA Esto Primero EC Declaration of Conformity Contents Page Contents IntroductionUnpacking Shipping DamageAudio Signal Connection ChapterReturning Products to EAW Quick StartComputer Control Connection Daisy Chaining Audio and Computer Signal Between ModulesAC Mains Installation Physical Installation Signal End / Power EndSystem Overview Signal ProcessingDescription Features 4 DSAi Block DiagramsElectronic Applications Engineering Design4a Angled Radiation Pattern DSAPilot Low Frequency PerformanceComparison to Traditional Products Designing DSAi SystemsInstallation Analog Audio and EIA-485 Computer Control2 Audio a & Audio B Recommended Conductor Gauge AWG to 18 AWG / 0.2 mm to 1 mm 3 Basic CobraNet Diagram CobraNet Audio and Computer ControlCabling Fault Detect Supervisory Monitoring 3a Single DSAi Fault on AC Mains Power Connection 2 PowerCon PlugGrounding 4 Fuse2 Signal End / Power End 3 DSAi Cluster Configurations 4a Wall Mounted 6 Mounting Height Lift the enclosure onto the structure-mounted Wall Brackets Acoustical Installation Initial Set-UpOperation Operational FunctionsSignal Monitoring Operational Check List Normal OperationOperational ‘DOS’ and ‘DONTS’ Maintenance and Service WarrantyService Items How to Contact EAWInspections and Maintenance AppendicesTroubleshooting DSA250i OnlyEIA-485 EIA-485 Network Notes CobraNetSupport For Ethernet Support For CobraNetDSAi Connections 3a EIA-485 Example 5c Example One path was to the EIA-485 port. So when B responds 6c Example Mechanical Drawings Right Side BackRight Side Full Scale Wall Bracket
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