ClearCom KB-212 Instrukcja Użytkownika Pobierz pdf (Strona 10)

Clear-Com Intercom Systems KB-212 Speaker Station

Rev. B

FIGURE 5: KB-212 Block Diagram

Troubleshooting

•

System does not operate. The Talk Light does not come on when

Talk button is pressed

Scenario 1

No intercom connection to the KB-212. If the EB-4W 4-Wire Option Module is

connected, no AC power to the KB-212.

EQ/

LIM

Talk

Min

Vol

Call

Light

Call

Intercom

Volume

TW Option

Intercom

Speaker

Power

(NC)

Call Send &

Receive

Microprocessor

Talk

Balanced

Program

Input

Speaker

Mute

Program

Mute

Mic Mute

Common

+30 VDC

Ground

Operating

Mode

Options

Mic Gain

Program

Level

Call Alert

Tone Level

4-Wire

Input

4-Wire

Output

2-Wire / 4-Wire

Select

Rectifier

16 VAC

Power

4-Wire

Option

Panel Mic

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 21 22

USER MANUAL 1
Introduction 2
Description 2
Quick Start 3
Operation 4
10—Minimum Volume Control 6
11—Option Switches 7
12—Intercom Line Connection 8
13—Program Input 8
14—Option Board Jumpers 9
Troubleshooting 10
Parts Lists 13
Diodes and Transistors 14
Miscellaneous 14
15 Rev. B 16
This page is a place holder 17
Technical Specifications 18
Dimensions 19
Notice About Specifications 19
Environmental 19
Clear-Com Limited Warranty 20
Non-Warranty Repair 21

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