Bosch SPB-160, SPB-80-4 Operation Manual

SAFEPATH4

AUDIO BOOSTER

SPB-80/4 P/N 108988

SPB-160 P/N 108989

SPB-160/B P/N 109930

SPB-80/4-B P/N 109931

Installation, Testing,

Operation, and Maintenance

Manual

273 Branchport Avenue, Long Branch, NJ 07740-6899 Ph: (800) 631-2148 Fax: (732) 222-2588 Toll Free 800-631-2148 Web Site: www.wheelockinc.com

Part Number P84296 Revision P Assembly Number A84347 Revision B

E-Mail: info@wheelockinc.com

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Typographical Notation Conventions

Thank you for using our products. Use this product according to this instruction manual. Please keep this instruction manual for future reference.

ANY MATERIAL EXTRAPOLATED FROM THIS DOCUMENT OR FROM WHEELOCK MANUALS OR OTHER DOCUMENTS DESCRIBING THE PRODUCT FOR USE IN PROMOTIONAL OR ADVERTISING CLAIMS, OR FOR ANY OTHER USE, INCLUDING DESCRIPTION OF THE PRODUCT'S APPLICATION, OPERATION, INSTALLATION AND TESTING IS USED AT THE SOLE RISK OF THE USER AND WHEELOCK WILL NOT HAVE ANY LIABILITY FOR SUCH USE.

Certain information contained in this manual has been extracted from the NFPA 72 Manual (1999 Edition) and the Life Safety Code 101™ Manual (2000 Edition).

Notation Conventions

This manual uses the following notation conventions:

WARNING: INDICATES A POTENTIALLY HAZARDOUS SITUATION THAT, IF NOT

AVOIDED, COULD RESULT IN PROPERTY DAMAGE AND SERIOUS PERSONAL INJURY OR DEATH TO YOU AND OR OTHERS.

CAUTION: Indicates a potentially hazardous situation that, if not avoided, could result in

minor or moderate injury. It may also be used to alert against unsafe practices.

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Table of Contents

Typographical Notation Conventions………………………………………………………..…… 3

Table of Contents……………………………………………………………………………..……. 5

List of Figures………………………………………………………………………………..……… 7

List of Tables………………………………………………………………………………..………. 8

Chapter 1 – Safety Precautions……………………………………………………………..……. 9

Section 1-1 – Read This Manual…………………………………………………..………. 9 Section 1-2 – Operational Safety……………………………………………………..…… 9 Section 1-3 – Compliance with Applicable Codes, Regulations, Laws, Standards, And Guidelines……………………………………………………………. 10 Section 1-4 – Property Insurance Recommendation………………………………….. 10 Section 1-5 – Audio Output Considerations……………………………………………. 10 Section 1-6 – RF Interference…………………………………………………………… 11 Section 1-7 – General…………………………………………………………………….. 11

Chapter 2 – Overview and Features……………………………………………………………. 13

Section 2-1 – Description…………………………………………………………………. 13 Section 2-2 – Enclosure and Configuration…………………………………………….. 13 Section 2-3 – Nominal Electrical Data………………………………………………….. 13 Section 2-4 – Operation Modes…………………………………………………………. 13

Chapter 3 – Installation and Setup……………………………………………………………… 19

Section 3-1 – Introduction………………………………………………………………… 19 Section 3-2 – Two Wire and Four Wire Audio Modes………………………..……….. 19 Section 3-3 – General Installation Instructions………………………………………… 22 Section 3-4 – Panel Wiring………………………..……………………………………… 30 Section 3-5 – Mounting…………………………………………………………………… 34 Section 3-6 – System Checkout…………………………………………………………. 35 Section 3-7 – Ground Fault Detection ………………………………………………….. 38 Section 3-8 – Battery Care and Backup Battery Calculations………………………... 38 Section 3-9 – AC Power and Battery Installation Procedures…………………...…… 40

Chapter 4 – Operation…………………………………………………………………………… 42

Section 4-1 – Introduction……………………………………………………………….. 42 Section 4-2 – Supervision……………………………………………………………….. 42 Section 4-3 – Actions That Initiate Alarms…………………………………………….. 43

Chapter 5 – Operational Procedures………………………………………………………….. 44

Section 5-1 – Operator Instructions……………………………………………………… 44

Chapter 6 – Periodic Testing and Maintenance………………………………………………. 46

Section 6-1 – Introduction………………………………………………………………… 46

Section 6-2 – Periodic Testing……………………………………………………………... 46 Section 6-3 – Faulty Equipment……………………………………………………………. 46 Section 6-4 – Qualified Personnel…………………………………………………………. 46 Section 6-5 – Miscellaneous Hardware Testing…………………………………………. 47

Chapter 7 – Troubleshooting………………………………………………………………………. 48

Section 7-1 – Introduction………………………………………………….………………. 48 Section 7-2 – Troubleshooting………………………………….……………..…………… 48 Section 7-3 – Audio Booster Wiring Diagram..……………….……………..…………… 56

Chapter 8 – Technical Data…………………………………………………….…………………. 57

Section 8-1 – Mechanical……………………………………………………….………….. 57 Section 8-2 – Environmental……………………………………………………………….. 57 Section 8-3 – Electrical……………………………………………………………………... 57

Chapter 9 – Module Descriptions…………………………………………………….…………… 59

Section 9-1 – Introduction………………………………………………..…………………. 59 Section 9-2 – Audio Booster Audio Booster PC Board ….………………………..……. 59 Section 9-3 – 24VDC Power Supply (SAPS)……………………….……………………. 60

Chapter 10 – Warranty……………………………………….…………………………………….. 61

Chapter 11 – Battery Backup Calculation Work Sheet………………………………..…………63

Appendix E - Compatible Appliances……………..…………………………………….See Attachment

List of Figures

Figure 2-1 Basic Capabilities of the SPB-80/4 SAFEPATH4 Audio Booster Panel……….… 15

Figure 2-2 Basic Capabilities of the SPB-160/4 SAFEPATH4 Audio Booster Panel…….…. 15

Figure 2-3 Layout of a SPB-80/4 SAFEPATH4 Audio Booster Panel………....…………....... 16

Figure 2-4 Layout of a SPB-160 SAFEPATH Audio Booster Panel………………………..…. 17

Figure 3-1 Connections for Multiple Audio Booster in Two-Wire Mode (SPB-160)………..….. 20

Figure 3-2 Connections for Multiple Audio Booster in Two-Wire Mode (SPB-80/4)…………… 21

Figure 3-3A Location of Field Wire Connections (SPB-160)………………………………….…… 23

Figure 3-3B Location of Field Wire Connections (SPB-80/4)…………………………………...… 24

Figure 3-4 Removable Terminal Block……………………………………………………….….…. 26

Figure 3-5 Power Limited and Non-Power Limited Wiring………………………………….….…. 26

Figure 3-6 Audio and Auxiliary Connections (SPB-160 and SPB-80/4)……………………...…. 27

Figure 3-7 Strobe Input Connections (SPB-80/4)……………………………………………….…. 27

Figure 3-8 Audio and Strobe Output Connections (SPB-80/4)……..……………………….…… 28

Figure 3-9 Audio Output Connections (SPB-160)……..…………………………………….…… 28

Figure 3-10 Alarm and Trouble Connections (SPB-160 and SPB-80/4)…………………….…… 29

Figure 3-11 Power and Battery Connections…………………………………………………..……. 29

Figure 3-12 Wiring Diagram - Visual Only Notification Appliances (SPB-80/4)………………..… 32

Figure 3-13 Wiring Diagram - Combination Audio/Visual Notification Appliances (SPB-80/4)… 32

Figure 3-14 Wiring Diagram - Audio Only Notification Appliance Output……….….…………..... 32

Figure 3-15 Trouble Status Relay Contacts……………….…………..….………..……….….…… 33

Figure 3-16 Input Power Connection Location on the SAPS Power Supply…………..…..….… 33

Figure 3-17 DC and Battery Connection on the Audio Booster PC Board………..…………...… 34

Figure 3-18 SAFEPATH4 Audio Booster Panel Mounting and Grounding Location.…………. 35

Figure 3-19A Jumper/Switch/Variable Resistor Location on SPB-160…….….……………..…….. 36

Figure 3-19B Jumper/Switch/Variable Resistor Location on SPB-80/4…….….…………...…….... 36

Figure 7-1A SPB-160 LED Locations….………………………….………………………………..…. 49

Figure 7-1B SPB-80/4 LED Locations……….…………………………………....………………….. 50

Figure 7-2 Audio Booster Wiring Diagram….…………………………………....……………..….. 56

Figure 9-1A SPB-80/4 PC Board…………………………………………………………………….… 59

Figure 9-1B SPB-160 PC Board…………………………………………………………………….… 60

Figure 9-2 24VDC Power Supply Module (SAPS)…………………………………………………. 60

List of Tables

Table 2-1 Standard Features……………………………………………………………………. 14

Table 3-1 Terminal Connection Definitions……………….…………….……………………… 25

Table 3-2 Jumper/Switch/Variable Resistor Functions………………………………………… 37

Table 6-1 Miscellaneous Hardware Tests………………………………………..……………. 47

Table 7-1 Trouble LED Procedure Cross Reference……………………………………..…… 51

Table 8-1 Mechanical……………………………………………………………………………… 57

Table 8-2 Environmental………………………………………………………………………….. 57

Table 8-3 Electrical………………………………………………………………………………… 57

Table 8-4 Outputs…………………………………………………………………………………. 58

Table 8-5 Wiring Connections…………………………………………………………………… 58

Table 8-6 End of Line Resistor (EOLR)………………………………………………………… 58

Chapter 1 - Safety Precautions

Section 1-1 - Read This Manual

Personnel properly qualified in the application and use of life safety equipment ("qualified personnel") shall read this manual carefully before performing any actions to specify, apply, install, maintain and operationally test SAFEPATH4 Audio Booster products in accordance with the instructions in this manual.

This manual shall be kept with the SAFEPATH4 Audio Booster panel for reference during the life of the system. This manual shall be made available to all qualified personnel who operate, test, maintain, or service SAFEPATH4 Audio Booster products. It is strongly recommend that such personnel read and understand the entire manual.

Section 1-2 - Operational Safety

WARNING: IF SAFETY PRECAUTIONS, INSTALLATION AND TESTING INSTRUCTIONS ARE

NOT PERFORMED PROPERLY, THE SAFEPATH4 AUDIO BOOSTER PANEL MAY NOT OPERATE IN AN EMERGENCY SITUATION WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.

WARNING: IF THE PROTECTIVE SIGNALING SYSTEM SOUNDS AND/OR FLASHES, IT IS A

WARNING THAT A POSSIBLE SERIOUS SITUATION REQUIRES IMMEDIATE ATTENTION.

CAUTION: SAFEPATH4 Audio Booster printed circuit boards are sensitive to static electricity

and have delicate components mounted on it. Discharge any static electricity from your body by touching a grounded object, such as a metal screw, which is connected to earth ground. Handle the board by its edges and be careful not to twist or flex it. The SAFEPATH4 Audio Booster panel is to be installed in a static free area, and the user is to properly attach grounded wrist straps before touching any static sensitive areas. After handling SAFEPATH4 Audio Booster printed circuit board, the panel should be tested in accordance with Section 3-6 “System Checkout” of this manual to verify that it is functioning properly.

NOTE: In areas prone to lighting strikes, using a surge protection device is recommended. Reference TESAN number S002-99 for recommended manufacturers of surge protection equipment.

This TESAN (Technical Engineering Support Application Notice) is available from the Wheelock website, www.wheelockinc.com , and is found under the Technical Support tab

This SAFEPATH4 Audio Booster panel will not work without power. The SAFEPATH4 Audio Booster panel is powered by 120VAC. 24VDC re-chargeable batteries provide backup power. If both sources of power are cut off for any reason, the SAFEPATH4 Audio Booster panel will not operate.

DO NOT assume any installation, operation and testing details not shown in this manual.

Notification equipment cannot last forever. Even though SAFEPATH4 Audio Booster is expected to last up to ten years, any of its parts or components could fail before then. Therefore testing of the entire protective signaling system, including the SAFEPATH4 Audio Booster panel, all notification equipment, as well as all messages and their output channel, and priority assignment, shall be conducted at least twice each year, or more often as required by local, state and federal codes, regulations and laws, by qualified personnel. If the notification equipment is not working properly, immediately contact the installer and have all/any problems corrected immediately. Malfunctioning components should be replaced immediately. Do not attempt to repair malfunctioning components. Malfunctioning components should be returned for factory repair or replacement. In the event you cannot contact the installer, contact the manufacturer.

WARNING: FOR PROPER OPERATION IN LIFE SAFETY APPLICATIONS, THE

SAFEPATH4 AUDIO BOOSTER PANEL SHALL BE CONNECTED TO A LISTED COMPATIBLE AND PROPERLY OPERATING VOICE EVACUATION PANEL SUCH AS THE WHEELOCK, INC SP40/2 PANEL, WHICH CONTROLS ITS ACTIVATION. ALL EQUIPMENT SHALL BE PROPERLY INTERCONNECTED AND OPERATING. THE INSTALLER SHALL CHECK COMPATIBILITY OF ALL EQUIPMENT PRIOR TO INSTALLATION, OTHERWISE THE SAFEPATH4 AUDIO BOOSTER PANEL AND/OR THE VOICE EVACUATION PANEL MAY BE DAMAGED AND/OR FAIL TO OPERATE IN AN EMERGENCY SITUATION.

WARNING: CERTAIN HARDWARE FUNCTIONS ON THE SAFEPATH4 AUDIO BOOSTER PANEL ARE NOT SUPERVISED. IF ANY SUCH HARDWARE FUNCTIONS FAIL, THE SAFEPATH4 AUDIO BOOSTER PANEL MAY NOT PROVIDE THE INTENDED WARNING AND/OR NOT INDICATE A TROUBLE CONDITION.

Section 1-3 - Compliance with Applicable Codes, Regulations,

Laws, Standards, and Guidelines

COMPLY WITH ALL OF THE LATEST APPLICABLE CODES, REGULATIONS, LAWS, STANDARDS, AND GUIDELINES.

WARNING: FOR EMERGENCY, LIFE SAFETY APPLICATIONS USING THE SAFEPATH4 AUDIO BOOSTER, INSTALLATION, TESTING AND MAINTENANCE SHALL BE PERFORMED BY QUALIFIED PERSONNEL IN ACCORDANCE WITH ALL THE LATEST NATIONAL FIRE PROTECTION ASSOCIATION (NFPA), UNDERWRITER’S LABORATORY (UL), NATIONAL ELECTRIC CODE (NEC), OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA), STATE, COUNTY, LOCAL, PROVINCE, DISTRICT, FEDERAL, AND OTHER APPLICABLE BUILDING AND FIRE STANDARDS, GUIDELINES, REGULATIONS, LAWS, AND CODES INCLUDING, BUT NOT LIMITED TO, ALL APPENDICES AND AMENDMENTS AND REQUIREMENTS OF THE LOCAL AUTHORITY HAVING JURISDICTION (AHJ).

It is recommended that the local AHJ inspect and approve the proposed placement of all the notification appliances.

NOTE: When installed in NYC, the background music and the telephone paging signals from the SP40/2 are not permissible.

Section 1-4 - Property Insurance Recommendation

The Voice Evacuation System containing the SAFEPATH4 Audio Booster panel is not a substitute for insurance. All users should have adequate levels of life and property insurance.

Section 1-5 - Audio Output Considerations

WARNING: AUDIBLE SIGNALS MAY MASK MEDICAL EQUIPMENT MONITORING ALARMS. WHERE MEDICAL EQUIPMENT MONITORING ALARMS ARE IN USE, DO NOT USE AUDIBLE SIGNALS; PROVIDE VISUAL NOTIFICATION APPLIANCES IN HIGHLY VISIBLE LOCATIONS.

CAUTION: The output of the audio system may not be heard in all cases. Sound can be

blocked or reduced by walls, doors, carpeting, wall coverings, furniture, insulation, bed coverings, and other obstacles that may temporarily or permanently impede the output of the audio system. Sound is also reduced by distance and masked by background noise. The output of the audio system may not be sufficient to alert all occupants, especially those who are asleep, those who are hearing-impaired, those who are wearing devices that plug or cover the ears, and those who have recently used drugs or alcohol. The output of the audio system may not be heard by an alert person if the output device is placed in an area which is isolated by a closed door, or is located on a different floor from the person in a hazardous situation or is placed too far away to be heard over ambient noise such as, but not limited to, running water, traffic, air conditioners,

machinery or musical appliances

If live microphone announcements, audible tones and/or voice messages cannot be readily heard and understood clearly within the protected areas as intended, it will be necessary to increase the number and/or sound output intensity of speakers within those areas so that they are heard and

understood clearly when activated

Section 1-6 - RF Interference

The SAFEPATH4 Audio Booster panel has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Section 1-7 - General

Each manufacturer's fire alarm control panel and notification appliances operate differently and have different features. Before specifying, installing, operating, testing, maintaining or servicing a system, carefully read the installation, operation and testing manual for each piece of equipment and applicable codes.

Additional copies of this manual may be obtained from:

Wheelock, Inc. 273 Branchport Ave. Long Branch, N.J. 07740 Tel: (800) 631-2148 Fax: (732) 222- 2588

E-mail: info@wheelockinc.com

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Chapter 2 - Overview and Features

Section 2-1- Description

General

The SAFEPATH4 AUDIO BOOSTER panel provides additional or remote amplification for Wheelock, Inc. Voice Evacuation panels. It is designed to boost the capacity of the SP40/2 panel by increasing the output wattage of the 25V or 70.7V audio output. There are two models of the audio booster. Model SPB-80/4 contains an 80 Watt, 25V or 70.7V, supervised audio output with two supervised and synchronized selectable 2 Amp strobe outputs. Model SPB-160 contains 160 Watt amplifier section with two 80 watt outputs each of 25V or 70.7V selectable supervised audio outputs. The SPB-160 does not contain strobe NAC circuits. Figures 2-1 and 2-2 on Page 15 illustrate the basic capabilities.

NOTE: Input and Output audio must be the same throughout the entire system. If 25V is selected as the input voltage, then 25V must be selected as the output voltage for the entire system. If 70.7V is selected as the input voltage, then 70.7V must be selected as the output voltage for the entire system.

The voice evacuation panel and the audio booster panel do hazards such as fire; it is only a part of a system that does sense such conditions. The panel, when activated by a voice evacuation panel, provides an amplified audio output from the voice evacuation panel to speaker notification appliances. When used as part of a protective signaling system, the voice evacuation panel must be properly connected to a compatible control panel that has been approved by a nationally recognized testing laboratory ("LISTED") and to LISTED compatible notification appliances for proper operation.

THE SAFEPATH4 AUDIO BOOSTER PANEL MUST BE PROPERLY INSTALLED AND CONNECTED TO A PROPERLY INSTALLED SP40/2 VOICE EVACUATION PANEL IN ORDER TO FUNCTION IN A VOICE EVACUATION SYSTEM.

not sense an emergency condition or

Section 2-2 - Enclosure and Configuration

See Chapter 8 for Technical Specifications

Section 2-3 - Nominal Electrical Data

See Chapter 8 for Technical Specifications.

Section 2-4 - Operation Modes

Standby Mode

Standby is the normal mode. The panel supervises the connections and internal components to maintain proper operation. All speaker appliances are off. If AC power is lost, the panel goes into a sleep or reduced power mode to conserve battery power.

Alarm Mode

Alarm mode occurs when an emergency signal is initiated by the voice evacuation system through an FACP or control equipment.

Standard Features

Table 2-1 Standard Features

Feature SPB-80/4 SPB-160

Strobe Input Circuit

Strobe Output Circuit

Audio Input Circuit

Audio Output Circuit

Battery Standby Sleep Mode

Power limited 8-33VDC NAC or CC

No Strobe Circuits.

strobe Activation

Two - 24VDC, 2A Max NAC Supervised power limited strobe outputs.

Selectable Outputs: Wheelock Sync, Wheelock Pass Through, or Constant DC.

Trouble LED's for open and short output conditions

Supervised with 10K Ohm EOLR.

One 1.2 Watt 25V or 70.7V input One 1.2 Watt 25V or 70.7V input

One 80 Watt, 25V or 70.7V selectable, supervised, power limited audio output.

Trouble LED's for open and short output conditions.

Supervised with 10K Ohm EOLR.

Two 80 Watt, 25V or 70.7V selectable, supervised, power limited audio output.

Trouble LED's for open and short output conditions.

Supervised with 10K Ohm EOLR.

When Audio Booster is in the standby mode and is on battery backup, the amplifier section shuts down to conserve battery power.

The Two Wire Mode also shuts off non-alarm functions on the SP40/2. When a alarm signal sends a message to the Audio Booster the amplifier section is reenergized and broadcasts the message.

The Four Wire Mode allows non-alarm functions on the SP40/2. An Auxiliary NAC/CC input wakes the Audio Booster for broadcast.

Power Supply Section

120VAC, 3.8A, 50-60Hz input

24VDC, 12AH Battery Backup

24VDC, 0.5A Power Output for Splitter Connections

Ground Fault

Monitors inputs and outputs for 600K Ohms minimum in relation to ground.

Detection

Supervision

Full supervision with on-board diagnostics and trouble reporting circuits for:

Audio NAC circuit wiring  open and short conditions Ground Fault detection Strobe NAC circuit wiring  open and short conditions Amplifier  operation Input voltage/low battery

Trouble Reporting

Form C relay trouble contacts for external notification.

Audio In 25V or 70.7V

Strobe In 8-33VDC or Contact Closure

Auxiliary In. For Alarm Operation of Amplifier when operating on Battery Only. 8-33VDC or Contact closure,

SPB-80/4

Audio Out 25V or 70V at 80 Watts, Supervi sed

Strobe 1 Out 24VDC at 2A, Supervised

Strobe 2 Out 24VDC at 2A, Supervised

Expansion Out 24VDC at 0.5A in Alarm Condition Supervi sed

DC OUT Constant 24VDC at 0.5A Unsupervised for Splitter Power

Trouble Form C Relay Rated at 24VDC at 1A

120 VAC

Figure 2-1

Basic Capabilities of the SPB-8/40 SAFEPATH4 Audio Booster Panel

Audio 1 Out 25V or 70V at 80 Watts,

Audio In 25V or 70.7V

Auxiliary In. For Alarm Operation of Amplifier when operating on Battery Only. 8-33VDC or Contact closure,

SPB-160

Supervised

Audio 2 Out 25V or 70V at 80 Watts, Supervised

Expansion Out 24VDC at 0.5A in Alarm Condition Supervised

DC OUT Constant 24VDC at 0.5A Unsupervised For Splitter Power

Trouble Form C Relay Rated at 24VDC at 1A

120 VAC

Figure 2-2

Basic Capabilities of the SPB-160 SAFEPATH4 Audio Booster Panel

AUD IN

AUD RET

AUX IN

AUX RET

STB IN

STB RET

24VDC

PS+

P82798 REV.

GND

C2A

POWER SUPPLY

GROUNDING TERMINAL STRIP

TB1

POWER

TB4

DC IN

DC OUT

BATTERY

D60

SPB-80/4 PC BOARD

TB5

AUD1 OUT

STB2 OUT

STB1 OUT

TB6

EXP OUT

NO CON

R B

TRANSFORMER

D62

STRB1 OUT

D59

25 70

STRB2 OUT

D61

EXP OUT

D75

J1B

25 70

TB2

R23

1 25 70

D28

SW1

SW4

TB3

LVL

D33

AUX TRB

TROUBLE

D24

D22

AMP TRB

AUD1 OPEN

W10

AC TRB

D27

D26

BAT TRB

AUD1 SHORT

D32

STRB2

D37

SHORT

STRB2 OPEN

D31

D38

STRB1

STRB1 SHORT

OPEN

D36

EXP SHORT

D77

EXP OPEN

D34

D35

D76

12VDC 12AH BATTERY

Figure 2-3

Layout of SPB-80/4 SAFEPATH4 Audio Booster Panel

AUD IN

AUD RET

AUX IN

AUX RET

PS+

P82798 REV.

GND

C2A

POWER SUPPLY

24VDC

GROUNDING

TERMINAL STRIP

TB1

POWER

TB4

DC IN

DC OUT

BATTERY

D60

TB5

AUD2 OUT

AUD1 OUT

TB6

EXP OUT

NO CON

R B

SPB-160

PC BOARD

TRANSFORMER

J1A

25 70

TB2

R23

1 25 70

SW1

AUX TRB

D28

TROUBLE

D24

D22

AMP TRB

AUD1 OPEN

W10

AUD2 OPEN

D30

AUD2 SHORT

D29

AUD1 SHORT

D32

D31

EXP SHORT

D77

EXP OPEN

D34

AC TRB

D27

D26

BAT TRB

D76

D59

25 70

12VDC 12AH BATTERY

EXP OUT

D75

Figure 2-4

Layout of SPB-160 SAFEPATH4 Audio Booster Panel

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Chapter 3 - Installation and Setup

Section 3-1 - Introduction

The lives of people depend upon your safe and proper installation of the voice evacuation system and the Audio Booster Panel. Please read, understand and carefully follow the specific installation instructions set forth below to avoid damage to the panel and equipment connected to it. Only qualified personnel in accordance with the procedures in this manual should conduct installation.

WARNING: SHUT OFF ALL POWER BEFORE STARTING THE INSTALLATION.

ELECTRICAL SHOCK CAN CAUSE DEATH OR SERIOUS INJURY.

WARNING: DO NOT CONNECT AC POWER OR BATTERY BACKUP POWER UNTIL SYSTEM WIRING HAS BEEN CONNECTED, MODULES HAVE BEEN INSTALLED, AND FIELD WIRING HAS BEEN INSPECTED.

CAUTION: The printed circuit board is sensitive to static electricity and has delicate

components mounted on it. Before handling the board or any component on it, discharge any static electricity from your body by touching a grounded object such as a metal screw, which is connected to earth, ground. The panel is to be installed in a static free area and the user is to properly attach grounded wrist straps before touching any static sensitive areas.

The installer, prior to installation should consult with the authorities having jurisdiction (AHJ).

Section 3-2 – Two Wire and Four Wire Audio Modes

Modes

There are two modes of operation for the audio input. These modes are: Two Wire and Four Wire. A maximum of 33 Audio Booster panels can be connected to an SP40/2 panel.

The Two Wire Audio Mode Supervision of the audio booster is performed over the same two wires used by the audio input signal. If any one audio booster connected in the system goes into trouble, all secondary operations (background music (BGM), telephone paging, and night ring) will disengage from all audio boosters connected in the system. This method conserves battery backup power, if AC power is lost. When an alarm message or a live voice message from the microphone is broadcast by the SP40/2, the audio booster is amplifier section is energized and the message is broadcast.

Connecting 1 to 33 Audio Booster panels to an SP40/2 in the two wire mode is done by connecting the audio returns (AUD RET) to the next audio input (AUD IN), and placing the UL Listed 10K Ohm EOLR on the last AUD RET. Jumper W10 shall be installed. This is illustrated in Figure 3-1.

is used with the Wheelock, Inc. SP40/2 voice evacuation panel.

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