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User Guide
Audio Products:
Mixers and Processors
DMP 44 LC
Four-Line Input and Four-Line Output
Digital Matrix Processor
68-1938-01
Rev. B
05 12
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Safety Instructions • English Warning Power sources • This equipment should be operated only from the power source indicated on the product. This This symbol is intended to alert the user of important operating and mainte- equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third nance (servicing) instructions in the literature provided with the equipment. (grounding) pin is a safety feature, do not attempt to bypass or disable it. This symbol i
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FCC Class A Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. The Class A limits are designed to provide reasonable protection against harmful interference when the equipment is operated
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Conventions Used in this Guide In this user guide, the following are used: NOTE: A note draws attention to important information. TIP: A tip provides a suggestion to make working with the application easier. CAUTION: A caution indicates a potential hazard to equipment or data. WARNING: A warning warns of things or actions that might cause injury, death, or other severe consequences. Commands are written in the fonts shown here: ^AR Merge Scene,,Op1 scene 1,1 ^B 51 ^W^C [01] R 0004 00300 00400
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Contents Introduction .....................................................1 Special Characters............................................. 42 Command/Response Tables for DSP SIS About This Guide ................................................ 1 Commands ...................................................... 46 About the DMP 44 LC Digital Matrix Processor .... 1 Command/Response Tables for Audio SIS Features .............................................................. 1 Commands ........
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DMP 44 LC • Contents vi
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Introduction This section describes this guide and the DMP 44 LC, including: • About This Guide • About the DMP 44 LC Digital Matrix Processor • Features • DMP 44 LC Application Diagram About This Guide This guide contains installation, configuration, and operating information for the Extron DMP 44 LC Digital Matrix Processor, software controlled digital audio processor. In this guide, the DMP 44 LC may also be referred to as “the DMP” or “device.” About the DMP 44 LC Digital Matrix Processo
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• Outputs — Four balanced or unbalanced line on 3.5 mm, 6-pole captive screw connectors. • 4x4 line level audio matrix mixer — The DMP 44 LC is a compact matrix processor with DSP. It features four line level inputs that can be processed, mixed, and routed to four line level outputs. • DSP audio signal processing — The DMP 44 LC provides digital signal processing on all input and output paths. • 24-bit/48 kHz analog-to-digital and digital-to-analog converters — High performance converters
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• 16 DSP Configurator presets — Using the DSP Configurator software, parameters for DSP processing, signal levels, or audio routing can be saved as presets. These settings can be saved for the entire system, or any selected group of inputs, outputs, mixing points, and DSP blocks. • Group masters — The DMP 44 LC provides the capability to consolidate gain or mute control throughout the system. Any gain or mute block within the graphical user environment can be selected and added to a group
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DMP 44 LC Application Diagram ™ TouchLink Control System TCP/IP Extron RS-232 XPA 1002 Power Ampli er Extron MLS 102 VGA MediaLink Extron Switcher DMP 44 LC Digital Matrix Processor Extron Laptop with SI 26 VGA Out Two Way Surface Line Output for PC with VGA Out Mount Podcast/Recording Speakers PC Extron SW8 DVI A Plus DVI Switcher PC with DVI Out With Audio Laptop with DVI Out PC with DVI Out DMP 44 LC • Introduction 4 1 2 INPUTS OUTPUT AUDIO INPUTS AUX/MIX OUT CONTROL/ 1 2 L 3 R L 4 R
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Installation This section describes the installation of the DMP 44 LC, including: • Mounting the DMP 44 LC • Rear Panel Features and Cabling Mounting the DMP 44 LC The 1U high, quarter rack width, 3.0 inch deep DMP 44 LC Digital Matrix Processor can be: • Set on a table, • Mounted on a rack shelf, • Mounted under a desk or tabletop, or • Mounted on a projector bracket. See “Mounting” in the “Reference Information” section for detailed mounting instructions. Rear Panel Features and Cabling
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2-Pole Captive Screw Connector Tie Wrap SECTION A–A 3/16” (5 mm) Max. Smooth Ridges Power Supply Output Cord Figure 2. Power Supply Wiring WARNING: The two power cord wires must be kept separate while the power supply is plugged in. Remove power before wiring. CAUTIONS: • Always use a power supply supplied by or specified by Extron. Use of an unauthorized power supply voids all regulatory compliance certification and may cause damage to the supply and the end product. • Unless otherwise s
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b Power/Reset LED — The green LED indicator duplicates the front panel LED operation (see the “Reset Actuator and LED” section for additional information). c Line 1-4 input connectors — 6-pole 3.5 mm double-stacked captive screw connectors accept balanced or unbalanced mono line level signals. Line inputs provide gain settings to accommodate consumer (-10 dBV) and professional (+4 dBu) operating line level sources. Up to four mono line inputs, balanced and unbalanced in any combination may
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The digital input port is used to monitor TTL level digital signals. Voltages greater than 2 V indicate a logic “high” signal while voltages less than .8 V indicate a logic “low.” NOTE: These ports are configured via DSP Configurator (see the “Digital input ports” section for additional information). Do not tin the wires! _ 1 2 3 Digital I/O Wiring Both the RS-232 and digital input connectors may be used simultaneously by using a 6-pin captive screw connector with two wires sharing the
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Operation This section describes the operation of the DMP 44 LC, including: • DMP 44 LC Operation • Front Panel Operation • Rear Panel Operation • DSP Processing/Signal Flow • Processor Blocks • Mix Matrix • Line Output Channels DMP 44 LC Operation The DMP 44 LC does not have physical controls. Configuration and operation are ® accomplished using a PC running Windows XP or better and the DSP Configurator software (available on the included disc or at www.extron.com), or the Extron Simple Inst
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Front Panel Operation CONFIG DMP 44 LC DIGITAL MATRIX PROCESSOR 1 2 Figure 6. DMP 44 LC Front Panel Power/Reset LED — Green power indicator lights when the DMP 44 LC is a operational. Configuration connector — The USB 2.0 port uses a mini type-B connector to b connect to a host computer for control. The DMP 44 LC USB driver must be installed prior to using the port (see the “Install the USB Driver” section for details). The DMP 44 LC appears as a USB peripheral with bi-directional com
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Firmware Updates The firmware of the DMP 44 LC can be updated through USB or RS-232 connection. The user can obtain new firmware from the Extron website. After obtaining the new firmware, upload it to the unit using the Firmware Loader option in the DSP Configurator program (see the “Software Control” section), or using the Extron standalone Firmware Loader application available on the included disc or at www.extron.com. Reset Actuator and LED A recessed button on the rear panel ( ) initiate
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Digital Input Ports The three-pin Digital Input port is used to monitor or drive TTL level digital signals. The port consists of three input pins with the fourth pin being used as a ground providing three inputs total. The DSP Configurator software provides a selection of functions to be loaded to the DMP 44 LC (see the “Software Control” section). 1. From the menu bar, click Tools > Configure Digital Inputs to access the Configuration utility. 2. Select the digital input to configure. DMP 4
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3. Select the event or “trigger” to configure the input. 4. Select the action that results when the trigger occurs. 5. Select the group to act upon when the trigger event occurs. 6. Select Apply to accept the changes. DMP 44 LC • Operation 13
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DSP Processing and Signal Flow The diagram below shows the signal flow and DSP processing per signal chain. Signal chains and the matrix are described in the following sections. All signal routing, processing, and level control (gain/trim/volume), are accomplished using software control from a PC connected to the DMP 44 LC via the USB configuration port or the RS-232 port. The DSP Configurator program provides complete control while SIS commands provide more limited control. This section des
