Summary of Contents for HME Clear-Com Encore AB-120
- Page 1 User Guide Clear-Com Encore AB-120 Announcer Console User Guide Date: December 11, 2019 Part Number: 399G309 Rev B...
- Page 2 Document reference AB-120 Announcer Console 399G309 Rev B Legal disclaimers Copyright © 2019 HME Clear-Com LtdHME Clear-Com Ltd All rights reserved Clear-Com, the Clear-Com logo, and Clear-Com Concert are trademarks or registered trademarks of HM Electronics, Inc. The software described in this document is furnished under a license agreement and may be used only in accordance with the terms of the agreement.
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Page 3: Table Of Contents
AB-120 Announcer Console Table of contents 1 Important Safety Instructions and Compliance 1.1 Compliance Section 2 Operation 2.1 Introduction 2.2 Description 2.3 Operation 3 Installation 3.1 Sportscaster Mode -Momentary Microphone Mute 3.2 Announcer Mode - Latching Microphone 3.3 AB-120 System Block Diagram 4 Specifications 4.1 Headset Microphone Input 4.2 Headset Output... -
Page 4: Important Safety Instructions And Compliance
AB-120 Announcer Console Important Safety Instructions and Compliance 1. 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 manufacturer’s instructions. -
Page 5: Compliance Section
AB-120 Announcer Console Safety Symbols Compliance Section Applicant Name: Clear-Com LLC Applicant Address: 1301 Marina Village Pkwy, Suite 105, Alameda CA 94501, USA Manufacturer Name: HM Electronics, Inc. Manufacturer Address: 2848 Whiptail Loop, Carlsbad, CA 92010, USA Country of Origin: USA Brand: CLEAR-COM Product Regulatory Model Number: AB-120 Caution: All products are compliant with regulatory requirements detailed in this document... - Page 6 AB-120 Announcer Console 1.1.1 FCC Class A 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. 1.1.2 Canada ICES-003 Industry Canada ICES-003 Compliance Label: CAN ICES-3 (A)/NMB-3(A) This Class A digital...
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Page 7: Operation
AB-120 Announcer Console Operation Introduction Congratulations 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. -
Page 8: Operation
AB-120 Announcer Console XLR-6M connector. Microphone gain is jumper selectable to accommodate all microphone types. The microphone output stage uses a high grade transformer for driving the microphone output. Output levels from 0 dB to -50 dB are jumper selectable. A high output stereo headphone amplifier provides talent with both program audio and cues from the control room, even in the most noisy environments. - Page 9 AB-120 Announcer Console 2.3.1 Front Panel Mute Mute Talk Back Talk Back Indicator Button Indicator Button Announcer Console AB-120 Interrupt Non-Interrupt Interrupt Non-Interrupt Level Level Control Control AB-120 Front Panel Controls Selecting Microphone Amplifier Gain The microphone preamplifier and the output line drive amplifier have selectable gains allowing the user to tailor the gain structure to the type of microphone being used and the desired output level.
- Page 10 AB-120 Announcer Console Internal jumpers JP9 and JP10 are normally factory set for -60 dB (dynamic microphone). Line Output Level Select The operating level at the output is selectable to accommodate the various types of devices that are to be fed. The microphone input of a console would need -60 dBu whereas the line input of a console might need a level of -10 dBu.
- Page 11 AB-120 Announcer Console Headset connectors Microphone Out Connector Male/Female Pair of Intercom Connectors IFB Input Connector 30 VDC Power Connector Channel Select Switch Channel Select 0.45A MAX Pin 2 (RTS) Pin 3 (CC) Headset Intercom/Talkback Mic Out AB-120 Rear Connectors Headset Connector The standard AB-120 is shipped with a headset connector designed for use with any type of announcer headset.
- Page 12 AB-120 Announcer Console The connector is also 5 pin compatible and most standard intercom headsets can be directly plugged into the unit. Options The construction of the AB-120 lends itself to modification. The 6 pin XLR could be replaced with a 5 pin XLR. Next to the headset connector is a 1/4 inch hole intended for the user to install a stereo phone jack for a separate set of headphones.
- Page 13 AB-120 Announcer Console IFB (XLR 3 female) The AB-120 has female XLR-3 connectors for the IFB input and is as follows: Pin 1 - ground shield Pin 2 = IFB 1 and power (+25 to +30 VDC) Pin 3 = IFB 2 2.3.3 Description of internal jumper options and adjustments The AB-120 has internal jumper options, connector selectable microphone output levels, dip...
- Page 14 AB-120 Announcer Console through hole components, while the AB-120 MK2 uses surface mounted components. If the circuit board is marked MK2, then you have the Mark 2 version. Otherwise, you have the original Mark 1 version. Original AB-120 (2007 to 2019) jumper setting locations Page 14...
- Page 15 AB-120 Announcer Console AB-120 MK2 (2019 onwards) Jumper setting locations Jumper Options There are eleven two position jumpers that provide many options for the operation of the AB- 120. To access these jumpers, remove the bottom cover of the unit. Inside the bottom cover is a label describing the functions of jumper and switch.
- Page 16 AB-120 Announcer Console JP7 (CC/RTS -TW Level Selection) JP7 allows the send gain on the partyline intercom channel to be increased when driving a TW type intercom line, such as RTS. Placing the jumper between pins 2 and 3 increases the send gain approximately 4 dB.
- Page 17 AB-120 Announcer Console DIP Switch Settings for S2 and S3 It will be noted that each of the IFB inputs has two dip switches and each has different gains associated with it. Dip switch 4 is for a 0 dB input on the IFB channel. Dip switch 3 is for a lower level on the same IFB input.
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Page 18: Installation
AB-120 Announcer Console Installation The AB-120 is a versatile interconnection box and can accommodate many types of installation. The AB-120 has two modes of operation; sportscaster mode and announcer mode. When shipped from the factory the AB-120 has its internal jumpers and dip switches set to implement the Clear-Com party-line setup. -
Page 19: Ab-120 System Block Diagram
(Undefined variable: Document types.User Guide)| AB-120 Announcer Console AB-120 System Block Diagram LINE LEVEL OPTIONAL GAIN SELECT LINE LEVEL OUT 30 DB 1/2 6-PIN PREAMP GAIN HEADSET MUTE ELECTRET SELECT CONNECTOR POWER INTERCOM CC/RTS GAIN A/B CHANNEL CLEAR-COM/RTS LOOPS THRU SELECT INTERCOM 1 (REAR PANEL) -
Page 20: Specifications
AB-120 Announcer Console Specifications Note: 0 dBu is referenced to 0.775 V RMS Headset Microphone Input Input Type Dynamic, Electret Input Impedance 1K Ohms Max Input Level -60 dBu to -40 dBu switchable Headset Output Load Impedance >= 4 Ohms Output Impedance 47 Ohms Output Limiter Threshold... -
Page 21: Max Distortion
AB-120 Announcer Console Max Distortion Dynamic Mic - Party Line <0.1% Dynamic Mic - Line Out <0.05% IFB Input - Headset Out <0.5% Party Line - Headset out <0.1% Noise Dynamic Mic - Party Line <-75 dBu Dynamic Mic - Line Out <-85 dBu IFB Input - Headset out <-65 dBu... -
Page 22: Power Requirements
AB-120 Announcer Console (1) Talk back button (1) Talk back indicator LED (green) (1) Interrupt level control (1) Non-interrupt level control 4.11 Power Requirements Intercom/IFB Voltage 25-30 VDC Current 100mA idle, 120mA max DC Adapter 100 - 240V Voltage 30V @ 0.5A 4.12 Physical Specifications Dimensions... -
Page 23: Glossary
AB-120 Announcer Console Glossary Some of the terms used when discussing critical communications for television or theatre may be new to you as they are unique to intercom applications. Although many of the terms are common to other audio applications, to be certain you understand their meanings we offer the following definitions: All Call: Ability to push one button from the main station and talk to all channels at once on a multiple channel system. - Page 24 AB-120 Announcer Console IFB: The term means “Interrupt Fold Back.” A fold-back is a monitor system that allows, for example, talent to hear their voices or musicians to hear their voices and instruments on stage. IFB (program interrupt) disconnects the audio source while the talk button on the main station is pushed.
- Page 25 AB-120 Announcer Console Termination: Passive network that is connected in each channel, usually on the power supply or main station. Page 25...
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Page 26: Technical Support And Repair Policy
AB-120 Announcer Console Technical Support and Repair Policy To ensure that your experience with Clear-Com and our World Class products is as beneficial, effective and efficient as possible, we would like to define the policies and share some "best practices" that can accelerate any problem solving processes which we may find necessary and to enhance your customer service experience. -
Page 27: Return Material Authorization Policy
AB-120 Announcer Console iii. Asia-Pacific: Hours:0800 - 1700 Pacific Time Days:Monday - Friday Tel:+1 510 337 6600 Email:Support@Clearcom.com d. Email Technical Support is available for all Clear-Com branded products free of charge for the life of the product, or two years after a product has been classified as obsolete, whichever comes first. - Page 28 AB-120 Announcer Console f. Advance Warranty Replacements (AWRs); i. During the first 30 days of the Standard Warranty Period: Once the equipment fault has been verified by Clear-Com or its authorized representative, Clear-Com will ship a new replacement product. The Customer will be provided with an RMA number and be required to return the faulty equipment within 14 days of receipt of the replacement or will be invoiced for the list price of a new product.
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Page 29: Repair Policy
AB-120 Announcer Console viii. Note: Shipping AWRs from Clear-Com is at Clear-Com's expense (normal ground or international economy delivery). Requests for expedited shipping (E.g. "Next-Day Air"), customs duties, and insurance are the responsibility of the Customer. Repair Policy a. Repair Authorizations: All products sent to Clear-Com or a Clear-Com Authorized Service Partner for repair must be identified by a Repair Authorization (RA) number.
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