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Installation and Operation Manual
ICM-16/MHI
Intercom Monitor and Headphone Interface
Firmware version 1.15 and above
Manual update 1/09/2004
Due to the dynamic nature of product design, the information contained in this
document is subject to change without notice. Broadcast Tools, Inc., assumes no
responsibility for errors and/or omissions contained in this document. Revisions
of this information or new editions may be issued to incorporate such changes.
Broadcast Tools® is a registered trademark of Broadcast Tools, Inc.
Copyright, 1989 - 2005 by Broadcast Tools, Inc. All rights reserved.
No part of this document may be reproduced or distributed without permission.
Visit www.broadcasttools.com for important product update information.
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Summary of Contents for Broadcast Tools ICM-16/MHI
- Page 1 Manual update 1/09/2004 Due to the dynamic nature of product design, the information contained in this document is subject to change without notice. Broadcast Tools, Inc., assumes no responsibility for errors and/or omissions contained in this document. Revisions of this information or new editions may be issued to incorporate such changes.
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Page 2: Table Of Contents
ICM-16/MHI Installation and Operation Manual Table of Contents Section Title Page # Introduction ..........3 Safety Information . -
Page 3: Introduction
ICM-16/MHI Installation and Operation Manual INTRODUCTION CAUTION! Thank you for your purchase of a Broadcast Tools® ICM-16/MHI, Intercom Broadcast Tools® Monitor/Headphone Interface (referred to as the MHI throughout this manu- Products, as with any al). We’re confident that this product will give you many years of dependable electronic device, can service. -
Page 4: Product Description
The ICM-16/MHI also features a headphone amp with a front panel 1/4” T/ R/S jack, level control, selectable microphone and/or line amplifier with front and rear panel XLR con- nectors. - Page 5 ICM-16/MHI Installation and Operation Manual DND Switch and LED: DND allows the operator to control interruptions during an open microphone (“MUTE”) situation. Pressing this push button will activate the function and light the DND (Do Not Disturb) LED. Pressing it again turns the function and LED off.
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Page 6: Remote Control Terminology
ICM-16/MHI Installation and Operation Manual Remote Control Mute: One 3 to 28 vdc wet or dry optically isolated input and one 5-volt TTL/CMOS com- patible momentary input are provided. This feature notifies the MHI that a micro- phone is in use in conjunction with the DND function and also instructs the monitor output to mute, if configured to mute. -
Page 7: Installation Guidelines
The following is a list of areas that you need to address first. ICM-16/MHI with the studio name of its desti- 1. Placement of your Broadcast Tools® ICM-16/MHI nation. You may end In some situations, the MHI can be placed in a countertop rack next to the console up changing jumpers and you won’t need to worry about out boarding the controls via the remote connec-... - Page 8 ICM-16/MHI Installation and Operation Manual INSTALLATION GUIDELINES 1) SPLIT HEADPHONES This is the ability to put the Talkback signal into either, both or none of the channels and adjust the amount of dimmed monaural air signal. This is selec- table by Dipswitch SW25.
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Page 9: Interfacing To The Studios
ICM-16/MHI Installation and Operation Manual INTERFACING TO THE STUDIOS CAUTION! Most likely you have different consoles, headphone amps, and other associated DO NOT CONNECT equipment in each of your studios. By preparing a setup form, you can help prepare THE LOW (-) yourself for the installation. - Page 10 The MHI is equipped with a selectable microphone/line talkback input. If your microphone pre-amp (insert point) feeds a line level DA, you could take one output and feed the Broadcast Tools® ICM-16/MHI. In this case, you would set-up the ICM-16/MHI’s microphone/line talkback input for line level (“Mic/Line switch SW24 IN”).
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Page 11: Calibration
TB Send rear panel trimmer pot to read your reference level on pins 4 & 5 on J9 (T/B SND). You should have your voice peaks reach your reference level. This needs to be set on all of the Broadcast Tools® ICM- 16/MHI units so levels match each other. -
Page 12: Hyperterminal Setup
ICM-16/MHI Installation and Operation Manual HYPERTERMINAL SETUP ON YOUR COMPUTER NOTE: The following instructions are for use with Windows 95/98/ME/NT/XP/2000 HyperTerminal. MENU Setup 1) You can start HyperTerminal by a) clicking Start, b) pointing to Programs, c) pointing to Accessories,... -
Page 13: Menu Setup
ICM-16/MHI Installation and Operation Manual MENU SET UP Plug one end of the supplied serial cable into J1 on the MHI and the other end into your computer’s serial (COM) port. Type (in the blind) the following command to access the menu: *m enter. The screen below will be displayed. Select which func- tion you need to change. -
Page 14: Specifications
ICM-16/MHI Installation and Operation Manual SPECIFICATIONS Talkback Microphone Input Type: Balanced, Transformerless Input impedance: < 2k ohms Maximum input level: -30 dbu Gain: > 55 db / Phantom voltage: Approximately 24Vdc Connectors: Front and rear panel female XLR’s Talkback Line Input Type:... -
Page 15: Warranty
If Broadcast Tools is notified, in writing, of a failure of any item manufactured by Broadcast Tools to conform to the foregoing Limited Warranty within one (1) year following the date of the Buyer’s acquisition of the item, and if the item is returned to Broadcast Tools in accordance with Broadcast Tools’...
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