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Fire Management Accessories Manual

445

Audio Amplifiers Section

Technical Bulletin

Issue Date

0394

© 1994 Johnson Controls, Inc.

1

Order No. 445-020

Introduction

Page

3

●

Description

3

Installation Procedures

5

●

Mounting the AA-30

5

●

Connecting the AA-30 Amplifier

7

●

Adjusting the AA-30 Audio Gain Level

9

●

4-Wire Supervision for Audio Amplifiers

10

Audio Amplifier (AA-30)

1
2
3
...
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Содержание Metasys AA-30

Страница 1: ...in Issue Date 0394 1994 Johnson Controls Inc 1 Order No 445 020 Introduction Page 3 Description 3 Installation Procedures 5 Mounting the AA 30 5 Connecting the AA 30 Amplifier 7 Adjusting the AA 30 Audio Gain Level 9 4 Wire Supervision for Audio Amplifiers 10 Audio Amplifier AA 30 ...

Страница 2: ...2 Audio Amplifiers Audio Amplifiers AA 30 ...

Страница 3: ...tteries failure of audio output wiring if configured for 4 wire output or amplifier failure Individual LEDs signal each source of trouble to aid in troubleshooting During total loss of primary power all LEDs are extinguished to conserve battery power An AA 30 can also be configured as a backup amplifier for one or more AA 30s In the event of an amplifier failure backup amplifier switching is autom...

Страница 4: ...4 Audio Amplifiers Audio Amplifiers AA 30 ...

Страница 5: ...cedures The AA 30 mounts in a CHS 4L Chassis Two AA 30s can be placed side by side in a CHS 4L The AA 30 may be mounted either in the same cabinet as the AMG 1 or in a remote cabinet See Figure 1 for more information on installing the AA 30 Mounting the AA 30 ...

Страница 6: ...employ AA 30 audio amplifiers For proper grounding of the AA 30 audio amplifiers to the cabinet connect a grounding cable to one of the chassis mounting screws as illustrated Step 2 Position the lower end of the AA 30 audio amplifier into the slot in the bottom of the CHS 4L chassis Step 3 Secure the AA 30 audio amplifer to the CHS 4L with the washers and nuts provided ...

Страница 7: ...h Ground Hot Neutral In Out In Out Secondary DC Power 24 VDC System Common FFCC08 Audio Amplifier Gain Adjust Audio Input and Output Connectors for Remote Mounting See Figure 3 Audio Input and Output Terminals for Mounting in the Same Cabinet See Figure 3 Figure 2 AA 30 Back Board Terminal Assignments Notes Primary AC and secondary 24 VDC battery power must be connected to each AA 30 You must also...

Страница 8: ...ield s Style Z Return for Audio Output Signal 1 Last XPC 8 P4 or P6 or P8 or P10 Style Z Return for Audio Signal Output Signal 2 Last XPC 8 P4 or P6 ro P8 or P10 Style Z Return for Audio Output Shield From Speaker IAC Shield s P8 FFCC08 Style Z Return for Differential 25 VRMS Audio Output Signal To XPC 8 P10 Differential 25 VRMS Audio Output Signal To Primary AA 30 P4 or XPC 8 P3 Backup Differenti...

Страница 9: ...n or audio out circuitry Battery Trouble LED The secondary DC power source has fallen below a suffficient voltage level Brownout LED The primary AC power source has fallen below a sufficient level Note D uring a complete loss of AC no LEDs will light on the AA 30 Incorrect Level LED During normal non alarm conditions this LED indicates that the AA 30 is out of adjustment When this LED is on and th...

Страница 10: ... transponder If the amplified high level audio wiring extends outside the transponder it should be supervised To enable supervision of the audio output circuit configure it as Style Z 4 wire by cutting resistors R8 and R9 on the AA 30 amplifier The two resistors R8 and R9 are located right below P6 on the AA 30 as shown in Figure 5 P8 aa30 P5 P6 P4 P10 P9 P1 P2 P7 P3 R9 R8 Figure 5 Resistors R8 an...

Страница 11: ...Audio Amplifiers Audio Amplifiers AA 30 11 Notes ...

Страница 12: ...12 Audio Amplifiers Audio Amplifiers AA 30 Notes Controls Group FAN 445 507 E Michigan Street Fire Management Accessories Manual P O Box 423 Printed in U S A Milwaukee WI 53201 ...

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