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Installation and Operation Manual

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 - 2011 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.

Firmware Version 1.16 (PCB 103201 Rev E/F)

Manual Update: 12/22/11

Please check the label on U4 for the correct firmware version.

SM-III Plus 

Silence Monitor III Plus

INC

®

Summary of Contents for Silence Monitor III Plus

Page 1: ...editions may be issued to incorporate such changes Broadcast Tools is a registered trademark of Broadcast Tools Inc Copyright 1989 2011 by Broadcast Tools Inc All rights reserved No part of this docum...

Page 2: ...ines 5 Inspection 5 Mounting 5 Connecting user equipment 5 Configured for backup switching 5 Remote control 6 Programming Guidelines 7 Mode setup 7 Sensitivity 7 Delay timing 7 Restore delay timing 8...

Page 3: ...If you experience these problems please research your hardware software instruction manuals or contact the man ufacturers technical support department WHO TO CONTACT FOR HELP If you have any questions...

Page 4: ...or optional RA 1 rack shelf for mounting up to three units in 1 RU PRODUCT FEATURES Transparent stereo or dual monaural program switcher with front panel switcher transfer switch and indicator LED Dip...

Page 5: ...ole Automation etc to LT and LT for the left channel and RT and RT for the right channel This is the nor mally closed contact of the relay switcher and the input to the SM III Connect the source BACK...

Page 6: ...low the selected function Note ALL inputs are 5 volt TTL CMOS compatible and active low pull to ground to activate It is recommended that all cables connected to the SM III Plus be looped through ferr...

Page 7: ...per is installed This provides TWO second resolutions To pro vide longer time resolution remove and stow Jp 1 which will provide 20 second resolution The switches are set at the factory for a 6 second...

Page 8: ...e default for this jumper is installed This provides TWO second resolutions To provide longer time resolution remove and stow Jp 1 which will provide 20 second resolution The switches are set at the f...

Page 9: ...et at the factory for off Each switch has a digit value as shown in the two tables below For the factory default setting Please note the table below refers to the restore time delay in seconds NOTE 1...

Page 10: ...ity setup on either or both channels after the delay time has expired See delay dipswitch SW1 will cause the following action 1 The front panel left and right audio LED s will extinguish 2 Unit switch...

Page 11: ...main source to the backup source of each independent mon aural channel 2 Turn on the failed audio alarm LED 1 or 2 and each relay 3 Turn on the Tripped led and relay 4 Pulse the pulse 1 open collecto...

Page 12: ...gold overlay contacts 1 amp 30 vdc 2 x DPDT for program switcher NOTE For safety do NOT connect 120 Vac circuits to these Relays Open collectors 15 vdc 100ma each Silence delay 2 seconds to 85 minutes...

Page 13: ...OTHER WARRANTIES OR REMEDIES TO THE MAXIMUM EXTENT PERMITTED BYAPPLICABLE LAW BROADCAST TOOLSAND ITS SUPPLIERS DISCLAIMALL OTHER WARRANTIES EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO IMPL...

Page 14: ...h version 1 16 firmware Please check the label on U4 for the correct firmware version Restore timing setup The SM III Plus restore time delay is set via SW 2 the first six positions of the dipswitch a...

Page 15: ...lence Sensor Delay Selection Switches Timing Operation Selection Jumpers Silence Sensor Audio Restoration Function Selection Switches Input 1 Input 2 Switcher Output 131 State Street Sedro Woolley WA...

Page 16: ...ernal Power Supply PS 15VDC 15VDC 5VDC Time Delay Restore and Mode XFER Remote XFer Mute Remote Mute Auto Remote Auto Reset Remote Reset Sonalert Left Valid Audio Right Left AudioAlarm Right Ext Alarm...

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