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Telex Audiocom US-2000 - User Manual

Telex Audiocom US-2000
22 pages
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Telex
®
Operating Instructions
US-2000
User Station
Audiocom
®
Intercom
System
®
US-2000
Mic Kill
Headset
PA
Panel Mic
Vox
Side Tone
All Talk
Listen
Listen
Call
Call
1
2
Talk
Talk
Volume
R
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Summary

GENERAL INFORMATION AND SYSTEM POWER

SYSTEM POWER

Details how the US-2000 receives power externally via input jack or channel connectors.

FCC STATEMENT

Equipment tested and found to comply with Class A limits, may cause interference in residential areas.

INITIAL US-2000 SETUP AND CONTROLS

MICROPROCESSOR FUNCTIONS

Describes functions like RESET and TEST SIGNAL for microprocessor control.

EXTERNAL CONNECTIONS & CONTROLS

Refers to callouts in Figure 1 for external connections and controls.

FRONT PANEL CONTROLS

VOLUME and SIDETONE Controls

Adjusts headset listen level and own voice level heard in earphones.

VOX Level Adjustment

Adjusts voice activation level for headset and panel microphones.

Headset and Panel Mic Keys

Explains operation modes (latched, momentary) for headset and panel mic keys.

ADDITIONAL OPERATIONAL CONTROLS

VOX Mode Operation

Details how to turn VOX mode on and off for microphones.

All Talk and PA Functions

Explains how to talk on all channels or public address system.

Mic Kill Key Features

Describes microphone kill, program kill, and audible call alert features.

TALK AND CALL FUNCTIONS

Talk Key Operation

Explains latched and momentary operation for talk keys on each channel.

Call Key Functions

Describes sending and receiving call signals on the intercom system.

LISTEN, PROGRAM, AND POWER INTERFACES

Listen Key Operation

Explains latched and momentary operation for listen keys on each channel.

Program Inputs and Volume Controls

Details program inputs, volume controls, and their functions.

Power and PA Jacks

Explains 12-15 VDC input and PA output jacks.

CONNECTORS AND TERMINATION

Expansion and Speaker Outputs

Describes EXP OUT and Speaker Output jacks.

Intercom Channel Connectors

Details the XLR connectors for intercom channels and loop-through wiring.

CHANNEL TERMINATION

INTERNAL COMPONENTS AND CONFIGURATION

CONFIGURATION SETTINGS

Clear-Com Setup

Specifies switch and jumper changes for using the US-2000 with Clear-Com equipment.

Speaker Setup

Specifies switch and jumper changes for routing audio to separate powered speakers.

DIP SWITCHES (SW2) FUNCTIONS

BALANCED;UNBALANCED SWITCH (SW1)

ADJUSTMENTS AND PIN CONFIGURATIONS

Adjustments

Explains internal adjustments for Return Cancellation and Limiter.

Connector Pin Configurations

Provides pinout details for headset and panel mic/stereo headset connectors.

CONNECTOR PIN CONFIGURATIONS (continued)

Program Inputs Pinout

Details the pinout for the DB9F Program Inputs connector.

PA Output Pinout

Describes the pinout for the 1/8-inch Stereo Phone Jack P.A. Output.

Speaker Outputs Pinout

Details the pinout for RCA Phone Jack Speaker Outputs.

INTERFACE CONNECTORS

Intercom Channel Connectors

Explains the XLR connector pinouts for Audiocom and Clear-Com modes.

Expansion and Power Interfaces

Describes Expansion Out and External Power jacks.

SPECIFICATIONS

INTERFACE REQUIREMENTS

Details electrical interface requirements for headset and panel microphone.

INTERFACE SPECIFICATIONS

Balanced Intercom Channel Specs

Provides output level, impedance, and cancellation specs for balanced channels.

Unbalanced Intercom Channel Specs

Provides output level, impedance, and cancellation specs for unbalanced channels.

Program Input Specs

Details specifications for voltage gain, output level, and input impedance.

PA Output and Headphone Amplifier Specs

Specifies PA output level and headphone amplifier performance.

AUDIO SPECIFICATIONS

Sidetone and Panel Mic Amplifier Specs

Details sidetone level and panel microphone amplifier performance.

VOX and Speaker Output Specs

Specifies VOX range and speaker output characteristics.

FACTORY SERVICE INFORMATION

QUICK REFERENCE GUIDE

Telex Audiocom US-2000 Specifications

General IconGeneral
BrandTelex
ModelAudiocom US-2000
CategoryIntercom System
LanguageEnglish

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