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Demonstration Network
Car Audio
System Installation Manual
2048 Mercer Road, Lexington, Kentucky 40511-1071
Phone: 859-233-4599 • Fax: 859-233-4510
Customer Toll-Free USA & Canada: 800-322-8346
Website: http://www.audioauthority.com
™
The Access Demonstration Network is protected by U.S. Patent numbers 5,422,631 and 5,646,602 with
foreign patents pending.
Audio Authority, and the double-A symbol are registered trademarks of Audio Authority Corporation.
Access, AccessEZ, AccessPC, SilenTouch, A
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Contents Orientation INTRODUCTION .................................................................................. 4 DEFINITION OF TERMS ...................................................................... 5 ™ HOW THE ACCESS SYSTEM WORKS ............................................. 7 ACCESS SYSTEM COMPONENTS .................................................... 8 Planning CHOOSING THE CORRECT SWITCHING MODULES ..................... 12 HEAD UNITS ..............................................
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Orientation INTRODUCTION ™ The AccessEZ series of demonstration system modules provides a plug-in solution for car audio, hi-fi, and video switching systems in retail display environments. This second generation of the highly capable, indus- ™ try-acclaimed Access System modules offers many new features and benefits: • AccessEZ offers a compact module to fit each kind of product, compared with a patchwork of printed circuit boards. • Modules are protected by attractive and rugged steel covers. •
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™ What is the Access System? ™ The Access System consists of a variety of intelligent switching modules. These modules communicate with each other via the “system bus,” allowing you to construct the exact demonstration system configuration you desire from the sources, processors/equalizers, amplifiers, speakers, and subwoofers in your display. The switching modules are located near the actual products on display creating a “distributed switching net- work.” The products are connected to the m
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Bypass A way to hear a system without a particular in-line component (EQ, Crossover, Amplifier, etc.). For example, when you wish to hear a system without the processor, the system can route the signal past the processor group and directly to the amplifiers. In this expample, Position #4 on the last module in the Processor Product Group is used as the bypass location. When this position is selected, or the Product Group is deselected, the audio signal continues through the bypassed group to t
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™ HOW THE ACCESS SYSTEM WORKS When a product is selected for demonstration, signals are sent through a network of buses between switching modules to activate that particular product position. Selecting Products in the Access System Products can be selected in a system in different ways that can all be combined into a single system, if desired. You may select products in the following ways: • By pressing a Product Select Button (PSB) connected to a switching module. This allows the user to build
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ACCESS SYSTEM COMPONENTS If you have already planned your system with the assistance of your account manager, you may wish to skip directly to the Installation section. If you do not have a complete plan for your system, get help from your ® Audio Authority Account Manager by calling 800-322-8346. Access™ User Interfaces Control Panels 902 Full-Featured Control Panel Includes one 987 Equal Volume Comparison (EVC) module, one microphone with 25’ cord, and one 905 IR Remote Control. Because the
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• The control panel or any specific Product Group can be “locked out” from unauthorized user input. • Auto SPL controls the maximum volume level of the currently selected system. The maximum is 120 dB. 903 Control Panel Similar to the 902 Control Panel, but does not include the 987 EVC module, so Equal Volume Com- parison and Auto SPL are not available. The 905 IR Remote will operate the 903 Control Panel but is not included, and must be purchased separately. All other functions of the 902 ar
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940EZ High-Level Selector Controls two channel high-level signals routed to or from four high-level products. Controls two channels of four products (e.g., high-level sources). Use Model 932 for applications where Au- ™ toDamping is desired. 942 2-Channel Amplifier Selector Switches the low-level inputs and high-level outputs of four 2-channel amplifiers. 958 EQ or Crossover Selector Controls low-level inputs and six channels of low-level outputs from four crossovers or equalizers. System Modu
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982A Low-Level Isolator Small in-line, low-level device that eliminates ground loops inherent in car audio displays. One required per amplifier group (982A is not recommended with subwoofer groups). 983 Four-Channel AutoMatch Module Device used to protect high-level in/out products on display that have different ground schemes. Device will protect products from harm when a floating ground source is selected to play with an amplifier. If needed, only one unit is required per display when demon
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CHOOSING THE CORRECT SWITCHING MODULES ™ The Access System is very versatile and can be installed and wired in many different ways, including the wrong way. Your Source Units Front Speakers Front Amps Account Manager can help you choose the modules that will best suit your needs. If at any time you wish to change your mer- Processor/EQs chandising approach, Access can be rewired and additional Rear Speakers Rear Amps modules can be installed to accommodate a different configu- Figure 5. Basic
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Head Unit Low-Level Bus Amplifier Product Groups The low-level outputs of products in the Processor/EQ/Crossover group are Dedicated EQ connected to the next logical component in the signal path, the Amplifier Low-Level Product Group. Generally, amplifiers come in two different varieties; those Buses 916X that have low-level and high-level inputs and those that only have high-level inputs, normally called “boosters.” These two types of amps require different switching modules and belong in dif
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Ampifier Bypass The source signal is supplied when no products in an amp group are selected. For the bypass option, remem- ber to leave the fourth position open on the last 942 module in each Amp Product Group. That position is reserved for the bypass connection, so no amp can be connected there (see pp. 6, 40). There are many other hookup and demonstration possibilities for amplifiers, many of which are shown in this manual. Please call us at 800-322-8346 if you have questions about the type
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BEGIN INSTALLATION 1. Preparation Follow these steps carefully: A. Review the design of the demonstration area. • Make sure the display fixture is correct for your installation. • Look at the supplied system wiring diagram, or choose one from this manual to serve as an example. Examples are in Appendix A: Sample Systems. • Gather the owner’s manuals of other products that are part of your system for reference during the installation. B. Gather the tools and materials you will need. You will n
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Note that the front amps and speakers have matching group numbers as do ASD the rear amps and speakers. As a rule, SOURCES å Demonstration Network related amps and speakers have match- Patents Pending ing group numbers; this determines PROCESSOR/EQ 123 A how the 902 Control Panel, if used, 456 B FRONT AMP handles Volume Compensation of the products in these Groups. Figure 15 789 C FRONT SPEAKERS shows how the 902/903 Control Panel 0 SECURE would arrange these product groups on REAR AMP its Pr
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C. Set the Address Switches. Some Group settings are made at the factory, and cannot be changed later. Figure 16 shows the first switch module (Model 910D) in the first Product Group (head units). It has a default address of Group #0 (set at the factory) and the Module ID is set to #00 (this lets the system know this Figure 16. First head unit Module with the module is connected to the first four products in this address 0/00 (Group/Module ID). product group). The second 910 would be address
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“B” should be set to “OFF” unless you wish to BYPASS the product group associated with the module. The bypass module is always the last module in the product group to be bypassed (only the bypass module should have the “B” switch turned ON). A product group will be bypassed when all products in that group are unselected. Bypass is commonly used in systems where there are both low-level and high-level output signals from head units (see Appx A, page 40 for a hookup diagram). “M” has specia
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3. Installing the System Hardware A. Designate the Switching Module Locations. Each switching module controls either 4 or 8 components. Follow your system plan drawing to determine the location of the switching modules in the display fixture. If you are using factory provided bus cables, you may wish to connect all the modules that share the system bus with system bus cable, power up the system on a bench or table, and check the switching modules and control panel logic before actually install
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BLACK BLUE RED YELLOW 4. Installing the Bus Cables Pre-assembled bus cables or the raw materials to make the necessary bus cables on the job site were included with your system purchase. Pre-assembled bus cables have connectors every two feet (RCA patch cords are available in lengths from three to twenty feet). If you plan to make your bus cables on the job site, you’ll need a special assembly tool available from the factory. If you are making your own bus cables, be very careful to follow the
