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  • AB-120 ANNOUNCER CONSOLE

    INSTRUCTION MANUAL

    CLEAR-COM ENCORE

  • AB-120 Announcer Console Instruction Manual 2009 Vitec Group Communications Ltd. All Rights Reserved.

    Part Number 810496Z Rev. 1

    Vitec Group Communications LLC850 Marina Village ParkwayAlameda, CA 94501U.S.A

    Vitec Group Communications Ltd7400 Beach DriveIQ CambridgeCambridgeshireUnited KingdomCB25 9TP

    Vitec Group CommunicationsRoom 1806, Hua Bin BuildingNo. 8 Yong An Dong LiJian Guo Men Wai AveChao Yang DistrictBeijing, P.R. China 100022

    Clear-Com, CellCom/FreeSpeak and the Clear-Com Communications Systems logo are registered trademarks of The Vitec Group plc.

    Website: www.clearcom.com

  • CONTENTSOPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

    Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Selecting Microphone Amplifier Gain. . . . . . . . . . . . . . . . . . . 1-3 Microphone Preamplifier Gain . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Line Output Level Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Options for Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Power from the IFB Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Power from the Intercom Line . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Power from an External DC Supply . . . . . . . . . . . . . . . . . . . . 1-4

    Rear Panel Connectors and Controls . . . . . . . . . . . . . . . . . . . . . . 1-5Headset Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

    Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Mic Out Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

    Intercom Line Connectors (XLR 3 male and female). . . . . . . . . 1-6IFB (XLR 3 female) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

    Description of internal jumper options and adjustments . . . . . . . . 1-7Jumper Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

    JP1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 JP7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 JP8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 JP9 and JP10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 JP11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

    Microphone Output Pad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9Dip Switch Selection of Earphone Output . . . . . . . . . . . . . . . . 1-10Headphone Sidetone Adjustment . . . . . . . . . . . . . . . . . . . . . . 1-10

    Application of Various Intercom System Types . . . . . . . . . . . . . . 1-11Clear-Com Party-Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

    IFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 INTERCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

    Setting Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12Setting Dip Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12Wiring of Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12TW Party-Line Systems (RTS) . . . . . . . . . . . . . . . . . . . . . . . . 1-13

    IFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 INTERCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

    Channel Select Switch = 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

    Clear-Com Communication SystemsAB-120 Announcer Console Instruction Manual

    1

  • Setting Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14Setting Dip Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14Wiring of Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

    INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Sportscaster Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

    Momentary Microphone Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Announcer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

    Latching Microphone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1AB-120 System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

    SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

    GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

    LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . W-I

    TECHNICAL SUPPORT & REPAIR POLICY. . . . . W-VTECHNICAL SUPPORT POLICY. . . . . . . . . . . . . . . . . . . . . . . . . . W-vRETURN MATERIAL AUTHORIZATION POLICY . . . . . . . . . . . . . W-viREPAIR POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W-viii

    Clear-Com Communication SystemsAB-120 Announcer Console Instruction Manual

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  • IMPORTANT SAFETY INSTRUCTIONS1. Read these instructions.2. Keep these instructions.3. Heed all warnings.4. Follow all instructions.5. Do not use this apparatus near water.6. Clean only with dry cloth.7. Do not block any ventilation openings. Install in accordance with

    the manufacturers instructions.8. Do not install near any heat sources such as a radiators, heat

    registers, stoves, or other apparatus (including amplifiers) that produce heat.

    9. Only use attachments/accessories specified by the manufacturer.10. Use only with the cart, stand, tripod, bracket, or table specified by

    the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

    11. Unplug this apparatus during lightning storms or when unused for long periods of time.

    12. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

    13. WARNING: To reduce the risk of fire or electric shock, do not expose this product to rain or moisture.

    Please familiarize yourself with the safety symbols in Figure 1. When you see these symbols on this product, they warn you of the potential danger of electric shock if the station is used improperly. They also refer you to important operating and maintenance instructions in the manual.

    Please read and follow these instructions before operating this product.

    Clear-Com Communication SystemsAB-120 Announcer Console Instruction Manual

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  • Figure 1: Safety Symbols

    EMC AND SAFETY

    The GPI-6 General Purpose Inputs Interface meets all relevant CE and FCC specifications set out below:

    EN55103-1 Electromagnetic compatibility. Product family standard for audio, video, audio-visual, and entertainment lighting control apparatus for professional use. Part 1: Emissions.

    EN55103-2 Electromagnetic compatibility. Product family standard for audio, video, audio-visual, and entertainment lighting control apparatus for professional use. Part 2: Immunity.

    And thereby compliance with the requirement of Electromagnetic Compatibility Directive 2004/108/EC and Low Voltage Directive 2006/95/EC

    This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

    CAUTIONRISK OF ELECTRIC SHOCK

    DO NOT OPEN

    This symbol alerts you to the presence of uninsulated dangerousvoltage within the product's enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the product's case.

    This symbol informs you that important operating and main-tenance instructions are included in the literature accompanyingthis product.

    Clear-Com Communication SystemsAB-120 Announcer Console Instruction Manual

    4

  • OPERATIONINTRODUCTIONCongratulations on choosing this Clear-Com product. Clear-Com was established in 1968 and remains the market leader in providing intercoms for entertainment, educational, broadcast and industrial applications. The ruggedness and high build-quality of Clear-Com products defines the industry standard. In fact, many of our original beltpacks and main stations are still in daily use around the world.

    The systems main station is a powerful, yet user-friendly unit that can serve as the hea