Clear-Com KB-702GM User Manual

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KB-702/KB-702GM TWO-CHANNEL SPEAKER STATIONS

INSTRUCTION MANUAL

CLEAR-COM ENCORE

Questions and Answers:

M
Maria MitchellAug 12, 2025
Why am I getting system feedback (acoustical) in my Clear-Com KB-702GM Intercom System?
- X
  xrobinsonAug 12, 2025
  Acoustical feedback in your Clear-Com Intercom System can occur if the intercom level control at one or more stations is set too high. Try adjusting the level. It can also happen if the sidetone null control isn't adjusted correctly; in this case, adjust the sidetone null control. Also, ensure the channel is properly terminated by setting the main station or power supply termination switch for that channel to the on position. If you're using an unconnected channel, set option switch #1 to the on or closed position to link both channel switch positions to the same intercom line. Finally, avoid using headset extension cords as they are not recommended.
S
Samantha BurtonAug 16, 2025
What to do if the speaker does not operate on my Clear-Com KB-702GM but the talk button lights amber?
- M
  Mary ObrienAug 16, 2025
  If the speaker on your Clear-Com Intercom System isn't working, and the talk button lights amber when pressed, first check if the speaker switch is turned off, the volume knob is turned all the way down, or the channel switch is set to an unused channel. Adjust these controls as needed. Also, make sure the speaker is properly connected internally, as a loose speaker plug or wiring could be the cause. Lastly, if you're not using the EB-TW or EB7-4W options, ensure that plug P3 is installed in jack J3 on the circuit board.

Clear-Com KB-702GM Specifications

General

Brand	Clear-Com
Model	KB-702GM
Category	Intercom System
Language	English

Summary

IMPORTANT SAFETY INSTRUCTIONS

EMC AND SAFETY

OPERATION

INTRODUCTION

Provides a welcome and general guidance for using the product manual.

DESCRIPTION

Details the features and functionalities of the KB-702 and KB-702GM speaker stations.

FRONT PANEL

Details the controls, indicators, and connectors located on the front panel.

Talk Button and Indicator

Explains the dual-action talk button and its indicator lights for communication.

Call Button and Light

Describes the function of the call button for signaling and its indicator status.

Tone Alert

Details the audible tone alert for incoming call signals and its adjustability.

Volume Control

Explains how to adjust the listening volume for the speaker or headset.

Sidetone Control

Describes how to adjust the level of the user's own voice heard in the headset.

Program Level Control

Explains how to set the level for the program audio input.

Speaker On/Off Switch

Details the switch to turn the front panel speaker on or off.

Mic Select Switch

Explains the switch for selecting between panel mic and headset mic.

Channel Switch

Describes how to select between intercom channels A and B.

Headset Connector

Details the front panel connector for headsets and microphones.

Panel Mic Connector

Describes the connector for optional gooseneck panel microphones on the KB-702GM.

VOX Control

Explains the adjustment of the Voice Operated Exchange control for the panel mic.

INTERNAL ADJUSTMENTS AND CONNECTIONS

Call Alert Tone Level Control

Explains the control for adjusting the volume of the call alert tone.

Option Switches

Details the function of the three internal option switches for system setup.

Call Signal Jumper

Describes the jumper for configuring call signal reception on selected or either channel.

Intercom Line Connection

Details the 5-terminal connector for interfacing with the intercom line.

Program Input

Explains the 3-terminal connector for program audio input.

Option Board Jumpers

Details the function of jumper plugs for optional modules.

INSTALLATION

MAINTENANCE

BLOCK DIAGRAM FOR THE KB-702

Presents the functional block diagram for the KB-702 model.

BLOCK DIAGRAM FOR THE KB-702GM

Presents the functional block diagram for the KB-702GM model.

TROUBLESHOOTING

TECHNICAL SPECIFICATIONS

Front Panel Connectors

Lists the connectors available on the front panel of the units.

Front Panel Controls & Indicators

Summarizes the controls and indicators found on the front panel.

Environmental

Provides the operating temperature range for the equipment.

Dimensions

Specifies the physical dimensions of the KB-702/KB-702GM units.

Weight

Lists the weight of the KB-702 and KB-702GM models.

Notice About Specifications

Notes that specifications are subject to change and are for guidance.

LIMITED WARRANTY

WARRANTY PERIOD

Details the different warranty periods for various product components.

TECHNICAL SUPPORT

Explains how to access technical support services.

WARRANTY REPAIRS AND RETURNS

Outlines the procedure for obtaining warranty repairs and returning equipment.

NON-WARRANTY REPAIRS AND RETURNS

Describes the process for non-warranty repairs and returns.

EXTENDED WARRANTY

Information on purchasing and benefits of an extended warranty.

SERVICE CONTRACT

Information on available service contracts and their benefits.

LIABILITY

States the limitations of VGC's liability regarding the product.

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