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ALARM-24 Series
1U Audio Alarm Monitor
Analog or Digital Inputs, Up To 24-Channels,
Loss-of-Audio/Clipping/Phase Monitoring,
with Visual and Audible Alarm Indication
Title and Contents ...........................................................
Introduction ............................................................................................
Description and Features .......................................................................
Applications, Specifications, Standard Models, and Other Options ......
Rear Panel Configurations .....................................................................
Section 2: Operation .......................................................
Installation .............................................................................................
Alarm Sounder Enable/Disable Instructions ..........................................
Front Panel Features ..............................................................................
Rear Panel Features ...............................................................................
Alarm Profile Editor Installation and Operation ....................................
Section 3: Technical Information .................................
RS232 Status and Control ......................................................................
ALARM-24 Internal Settings - Channel Address ...................................
ALARM-24A (Analog) Interconnect Block Diagram .............................
ALARM-24D (Digital) Interconnect Block Diagram .............................
© 2003 Wohler Technologies Inc. ALL rights reserved
Document P/N 821542 Rev-A
User Manual
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Summary of Contents for Wohler ALARM-24 Series
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Page 1: Table Of Contents
Alarm Profile Editor Installation and Operation ........Section 3: Technical Information ......... RS232 Status and Control ..............ALARM-24 Internal Settings - Channel Address ........ALARM-24A (Analog) Interconnect Block Diagram ......ALARM-24D (Digital) Interconnect Block Diagram ......© 2003 Wohler Technologies Inc. ALL rights reserved... -
Page 2: Introduction
Introduction Congratulations on your selection of a Wohler Technologies product. We are confident it represents the best performance and value available, and we guarantee your satisfaction with it. If you have questions or comments you may contact us at: Wohler Technologies, Inc. -
Page 3: Section 1: General Features And Specifications
ALARM-24 Series User Manual P/N 821542 Rev-A Section 1 General Features and Specifications Description Features Applications Specifications Standard Models Other Options © 2003 Wohler Technologies Inc. ALL rights reserved... - Page 4 Description The Wohler ALARM-24 audio error alarm systems provide audible and visual alarms for loss of audio, over-range (clipping), and phase/polarity reversal. When a fault condition occurs, it activates individual channel LEDs and sets off an acoustic alarm. It also energizes a rear-panel relay contact closure(s) for remote alarm.
- Page 5 • Eight (8) and sixteen (16) channel models Other custom options are possible. Call your dealer or Wohler Technologies to discuss your specific needs. Units are designed to meet, at time of manufacture, all currently applicable product safety and EMC requirements, such as those of CE.
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Page 6: Rear Panel Configurations
The following illustration shows three types of input panel section modules (two digital and one analog) available for use in the ALARM-24 series. Analog models are referred to with an "A" appended to the standard product name and Digital (AES) models are referred to with a "D"... -
Page 7: Section 2: Operation
ALARM-24 Series User Manual P/N 821542 Rev-A Section 2 Operation Installation Alarm Sounder Enable/Disable Instructions Front Panel Features Rear Panel Features Wohler Alarm Profile Editor Installation and Operation © 2003 Wohler Technologies Inc. ALL rights reserved... - Page 8 ALARM-24 Series User Manual P/N 821542 Rev-A Section 2: Operation © 2003 Wohler Technologies Inc. ALL rights reserved...
- Page 9 Alarm Sounder Enable/Disable Instructions All ALARM-24 Series units feature a Piezo Alarm Sounder located on the front panel (Item 1, page 10). This sounder produces an audible alarm when the configured alarm threshold has been exceeded. This sounder may be disabled or enabled using the instructions below.
- Page 10 ALARM-24 Series User Manual P/N 821542 Rev-A Section 2: Operation Front Panel Features Please refer to the example in Figure-2a on the following page to familiarize yourself with the front panel features of the ALARM- 24 Series units. The following sections describe these functions and are referenced, by number, to Figure-2a.
- Page 11 ALARM-24 Series User Manual P/N 821542 Rev-A Section 2: Operation Figure-2a: Front Panel Features (ALARM-24xS/x Example) © 2003 Wohler Technologies Inc. ALL rights reserved...
- Page 12 Section 2: Operation Rear Panel Features Please refer to Figure-2b on the following page to familiarize yourself with the rear panel features of the ALARM-24 Series units. The following sections describe these features and are referenced, by letter, to Figure-2b.
- Page 13 ALARM-24 Series User Manual P/N 821542 Rev-A Section 2: Operation CALIB CALIB CALIB CALIB CALIB CALIB ALARM-24Ax/P ALARM-24Dx/P ALARM-24Dx/B Figure-2b: Rear Panel Features © 2003 Wohler Technologies Inc. ALL rights reserved...
- Page 14 Set to position 3 for normal operation. See table below for settings. Note: For position 2, see page 17 (Wohler Alarm Profile Editor Installation and Operation: Equipment hookup and Data Download) for instructions for downloading alarm threshold settings.
- Page 15 ALARM-24 Series User Manual P/N 821542 Rev-A Section 2: Operation CALIB CALIB CALIB CALIB CALIB CALIB ALARM-24Ax/P ALARM-24Dx/B ALARM-24Dx/P Figure-2b: Rear Panel Features © 2003 Wohler Technologies Inc. ALL rights reserved...
- Page 16 Wohler Alarm Profile Editor Installation and Operation Background The Wohler Alarm Profile Editor is a Windows application designed to allow the user of the Wohler Alarm products to be able to change alarm trip thresholds. The application targets the following operating systems: WIN 95, WIN 98, WIN 2000, WIN NT4.0 and WIN XP.
- Page 17 • To put the Wohler Alarm unit into Load Profile mode, remove power, set the rear panel Option Select BCD switch (Item E, page 14) to position 2, reapply power. The unit is then ready to receive its' new set of profiles.
- Page 18 ALARM-24 Series User Manual P/N 821542 Rev-A Section 2: Operation © 2003 Wohler Technologies Inc. ALL rights reserved...
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Page 19: Section 3: Technical Information
ALARM-24 Series User Manual P/N 821542 Rev-A Section 3 Technical Information • RS232 Status and Control • ALARM-24 Internal Settings - Channel Address • ALARM-24A (Analog) Interconnect Block Diagram • ALARM-24D (Digital) Interconnect Block Diagram © 2003 Wohler Technologies Inc. ALL rights reserved... - Page 20 ALARM-24 Series User Manual P/N 821542 Rev-A Section 3: Technical Information RS232 Status and Control 1) Interface Type The RS232 connector on the ALARM units is a female DB9, configured for Data Communications Equipment (DCE). This port will connect directly to a COM port on an IBM compatible computer with a "straight through" 9-way RS232 cable.
- Page 21 ALARM-24 Series User Manual P/N 821542 Rev-A Section 3: Technical Information ALARM-24 Internal Settings - Channel Address ALARM-24 Internal 10-Position DIP Switch Settings Channel Address (Factory Set) 1 2 3 4 1 2 3 4 1 2 3 4 Chan. 1 to 4 Chan.
- Page 22 ALARM-24 Series User Manual P/N 821542 Rev-A Section 3: Technical Information © 2003 Wohler Technologies Inc. ALL rights reserved...
- Page 23 ALARM-24 Series User Manual P/N 821542 Rev-A Section 3: Technical Information © 2003 Wohler Technologies Inc. ALL rights reserved...
- Page 24 ALARM-24 Series User Manual P/N 821542 Rev-A Wohler Technologies, Inc. Wohler Technologies, Inc. 713 Grandview Drive 31055 Huntwood Avenue South San Francisco, CA 94080 Hayward, CA 94544 650 589-5676 Fax: 650 589-1355 Phone: (510) 870-0810 Fax: (510) 870-0811 web: www.wohler.com US Toll-Free: 1-888-596-4537 e-mail: support@wohler.com...
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