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User Guide
Audio Converter
BUC 202
Two Channel Balanced and
Unbalanced Audio Converter
68-2351-01
Rev. A
03 14
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Safety Instructions Safety Instructions • English Инструкция по технике безопасности • Русский WARNING: This symbol, , when used on the product, is intended to ПРЕДУПРЕЖДЕНИЕ: Данный символ, , если указан alert the user of the presence of uninsulated dangerous voltage within на продукте, предупреждает пользователя о наличии the product’s enclosure that may present a risk of electric shock. неизолированного опасного напряжения внутри корпуса продукта, которое может привести к поражению ATTEN
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FCC Class B notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. There is no guarantee that int
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Contents Introduction ....................................................1 Features ............................................................. 1 Application Example ........................................... 2 Setup and Operation ......................................3 Rear Panel Features and Cabling ........................ 3 Front Panel Feature ............................................ 5 Adjusting the Trim ............................................... 5 Mounting .....................
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Introduction The Extron BUC 202 is a two channel balanced and unbalanced audio converter and audio line driver. It features two balanced or unbalanced inputs and outputs, both on captive screw connectors. The BUC 202 provides two independent channels of signal matching between unbalanced and balanced audio equipment. Two rotary switches provide precise trim adjustment from -21 to +21 dB in clearly-labeled 3 dB steps. In addition to serving as an interface from consumer products to professio
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Application Example The illustration below is one example of configuring a system using the BUC 202. Extron BUC 202 Two Channel Audio BUC Extron STP20-2 Cable Serial Control/Audio Cable PC Extron DMP 64 Digital Matrix Processor Extron XPA 2003C 70V Combo Power Ampli er Extron SI 26CT Two-Way Ceiling Speakers Extron SI 28 Surface-Mount Speakers Figure 1. BUC 202 Application Example BUC 202 User Gui
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Setup and Operation The Setup and Operation section describes: • Rear Panel Features and Cabling • Front Panel Feature • Adjusting the Trim Rear Panel Features and Cabling 100-240V 50/60 Hz BUC 202 0.2A MAX INPUTS OUTPUTS TRIM 1 1 2 1 2 2 0 0 -3 3 -3 3 6 -6 6 -6 -9 9 -9 9 -12 12-12 12 -15 15 -15 15 -18 -18 18 18 -21 21 -21 21 A B C D AC power Input connector A C Trim adjustment Output connector B D Figure 2. BUC 202 Rear Panel AC power — Connect to standard AC power: 100 to 240 VAC, at
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12 12 12 12 12 12 Input connector — This 3.5 mm, 5-pole captive screw connector accepts line level C balanced or unbalanced, mono or stereo audio signals (see to the illustrations below for proper wiring). ATTENTION: The length of the exposed wires in the stripping process is critical. The ideal length is 3/16 inches (5 mm). Any longer and the exposed wires may touch, causing a short circuit between them. Any shorter and the wires can be easily pulled out even if tightly fastened by the
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Front Panel Feature BUC 202 A Figure 6. BUC 202 Front Panel Power LED — The green lights when the BUC 202 is receiving power. A Adjusting the Trim The BUC 202 can be wired in four different configurations: • Balanced input to unbalanced output • Unbalanced input to balanced output • Balanced input to balanced output • Unbalanced input to unbalanced output Follow the steps below to adjust the trim: 1. Disconnect power from all devices. 2. Wire the BUC 202 for either balanced or unbalanced st
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Mounting The Mounting section describes: • UL Rack Mounting Guidelines • Tabletop Mounting • Rack Rail and Under-Furniture Mounting • Rack Shelf Mounting UL Rack Mounting Guidelines The following Underwriters Laboratories (UL) guidelines pertain to the safe installation of the BUC 202 in a rack. 1. Elevated operating ambient temperature — If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient tempera
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BUC 02 2 100-240V 50/60 Hz BUC 202 0.2A MAX TRIM INPUTS OUTPUTS 1 2 1 2 1 2 -3 0 3 -3 0 3 -9 -6 6 9 -9 -6 6 9 9 -1-215 12 15-12 -15 12 12 15 15 -18-21 2118 -18-21 2118 Rack Rail Mounting ZipClip 200 Side of Rack Back of Rack Inside of Rack Figure 7. BUC 202 Rack Rail Mounting 1. Fasten the ZipClip 200 mounting clip to a convenient location on a rack rail using two rack screws. 2. Insert the bottom of the BUC 202 into the clip, starting with one end. 3. Pivot the other end of the unit toward
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- . INPUTS OUTPUTS 1 2 6 3 0 36 6 3 0 36 9 129 12 9 129 12 1 15 8 21 21 1815 1 15 8 21 21 1815 100 240V 50/60 Hz 0 2A MAX BUC 202 TRIM 1 2 1 2 - - - - - - - - -- - -- - BUC 202 5. To remove the BUC 202 from the ZipClip 200 mounting clip, press down on the locking tab ( ) while lifting up on the unit ( ). 1 2 2 1 Under-Furniture Mounting 1 ZipClip 200 2 Furniture Mounted BUC 202 Figure 8. BUC 202 Under-Furniture Mounting NOTE: The ZipClip is shipped with a set of four wood screws. 1. Attach
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100-240V 50/60 Hz 0.2A MAX BUC 202 TRIM INPUTS OUTPUTS 1 2 1 2 1 2 -3 0 3 -3 0 3 -9 -6 6 9 -9 -6 6 9 9 -12 12-12 12 12 -15-18 18 15 -15 -18 18 15 15 -21 21 -21 21 BUC 202 4. To secure any loose cables and to provide strain relief, attach tie wraps (“zip ties”) around the tie wrap notches on the BUC 202 and through the anchor points on the mounting clip. Tie Wrap ATTENTION: Connect and pull the tie wraps until they are secure. Do not overtighten. 5. To remove the BUC 202 from the ZipClip
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BUC 202 Rack Shelf Mounting 2 RSB 123 Rack Shelf 1 (2) 4-40 x 3/16" Screws Rack Mounted Figure 9. BUC 202 Rack Shelf Mounting 1. Align the threaded holes in the bottom of the BUC 202 with the holes in an Extron rack shelf ( ). Fasten the unit to the shelf with two 4-40 x 3/16-inch screws. 1 2. Bolt the rack shelf to the rack ( ). 2 BUC 202 User Guide • Mounting 10
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Extron Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase. In the event of malfunction during the warranty period attributable directly to faulty workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components, to whatever extent it shall deem necessary to restore said product to proper operating condition, provided that it is returned within t
