Fire-Lite ACC-25/50DA(ZS) User Manual

PN: 52265:B ECN 08-087

Distributed Audio Panel

ACC-25/50DA & ACC-25/50DAZS

Document #52265 1/30/08 Rev.

Fire Alarm System Limitations

While a fire alarm system may lower insurance rates, it is not a substitute for fire insurance!

An automatic fire alarm system–typically made up of smoke detectors, heat detectors, manual pull stations, audible warning devices, and a fire alarm control panel with remote notification capability–can provide early warning of a developing fire. Such a system, however, does not assure protection against property damage or loss of life resulting from a fire.

The Manufacturer recommends that smoke and/or heat detectors be located throughout a protected premise following the recommendations of the current edition of the National Fire Protection Association Standard 72 (NFPA 72), manufacturer's recommendations, State and local codes, and the recommendations contained in the Guides for Proper Use of System Smoke Detectors, which are made available at no charge to all installing dealers. These documents can be found at http:/www.systemsensor.com/html/ applicat.html. A study by the Federal Emergency Management Agency (an agency of the United States government) indicated that smoke detectors may not go off in as many as 35% of all fires. While fire alarm systems are designed to provide early warning against fire, they do not guarantee warning or protection against fire. A fire alarm system may not provide timely or adequate warning, or simply may not function, for a variety of reasons:

Smoke detectors may not sense fire where smoke cannot reach the detectors such as in chimneys, in or behind walls, on roofs, or on the other side of closed doors. Smoke detectors also may not sense a fire on another level or floor of a building. A second-floor detector, for example, may not sense a first-floor or basement fire.

Particles of combustion or "smoke" from a developing fire may not reach the sensing chambers of smoke detectors because:

• Barriers such as closed or partially closed doors, walls, or chimneys may inhibit particle or smoke flow.

• Smoke particles may become "cold," stratify, and not reach the ceiling or upper walls where detectors are located.

• Smoke particles may be blown away from detectors by air outlets.

• Smoke particles may be drawn into air returns before reaching the detector.

The amount of "smoke" present may be insufficient to alarm smoke detectors. Smoke detectors are designed to alarm at various levels of smoke density. If such density levels are not created by a developing fire at the location of detectors, the detectors will not go into alarm.

Smoke detectors, even when working properly, have sensing limitations. Detectors that have photoelectronic sensing chambers tend to detect smoldering fires better than flaming fires, which have little visible smoke. Detectors that have ionizing-type sensing chambers tend to detect fast-flaming fires better than smoldering fires. Because fires develop in different ways and are often unpredictable in their growth, neither type of detector is necessarily best and a given type of detector may not provide adequate warning of a fire.

Smoke detectors cannot be expected to provide adequate warning of fires caused by arson, children playing with matches (especially in bedrooms), smoking in bed, and violent explosions (caused by escaping gas, improper stor-

age of flammable materials, etc.). Heat detectors do not sense particles of combustion and

alarm only when heat on their sensors increases at a predetermined rate or reaches a predetermined level. Rate-of-rise heat detectors may be subject to reduced sensitivity over time. For this reason, the rate-of-rise feature of each detector should be tested at least once per year by a qualified fire protection specialist. Heat

detectors are designed to protect property, not life. IMPORTANT! Smoke detectors must be installed in the

same room as the control panel and in rooms used by the system for the connection of alarm transmission wiring, communications, signaling, and/or power. If

detectors are not so located, a developing fire may damage the alarm system, crippling its ability to report a fire.

Audible warning devices such as bells may not alert people if these devices are located on the other side of closed or partly open doors or are located on another floor of a building. Any warning device may fail to alert people with a disability or those who have recently consumed drugs, alcohol or medication. Please note that:

• Strobes can, under certain circumstances, cause seizures in people with conditions such as epilepsy.

• Studies have shown that certain people, even when they hear a fire alarm signal, do not respond or comprehend the meaning of the signal. It is the property owner's responsibility to conduct fire drills and other training exercise to make people aware of fire alarm signals and instruct them on the proper reaction to alarm signals.

• In rare instances, the sounding of a warning device can cause temporary or permanent hearing loss.

A fire alarm system will not operate without any electrical power. If AC power fails, the system will operate from standby batteries only for a specified time and only if the batteries have been properly maintained and replaced regularly.

Equipment used in the system may not be technically compatible with the control. It is essential to use only equipment listed for service with your control panel.

Telephone lines needed to transmit alarm signals from a premise to a central monitoring station may be out of service or temporarily disabled. For added protection against telephone line failure, backup radio transmission systems are recommended.

The most common cause of fire alarm malfunction is inadequate maintenance. To keep the entire fire alarm system in excellent working order, ongoing maintenance is required per the manufacturer's recommendations, and UL and NFPA standards. At a minimum, the requirements of NFPA 72 shall be followed. Environments with large amounts of dust, dirt or high air velocity require more frequent maintenance. A maintenance agreement should be arranged through the local manufacturer's representative. Maintenance should be scheduled monthly or as required by National and/or local fire codes and should be performed by authorized professional fire alarm installers only. Adequate written records of all inspections should be kept.

PrecauLarge.PMD 02/26/2007

Installation Precautions

Adherence to the following will aid in problem-free installation with long-term reliability:

WARNING - Several different sources of power can be connected to the fire alarm control panel. Disconnect all

sources of power before servicing. Control unit and associated equipment may be damaged by removing and/or inserting cards, modules, or interconnecting cables while the unit is energized. Do not attempt to install, service, or operate this unit until this manual is read and understood.

CAUTION - System Reacceptance Test after Software Changes. To ensure proper system operation, this product

must be tested in accordance with NFPA 72 after any programming operation or change in site-specific software. Reacceptance testing is required after any change, addition or deletion of system components, or after any modification, repair or adjustment to system hardware or wiring.

All components, circuits, system operations, or software functions known to be affected by a change must be 100% tested. In addition, to ensure that other operations are not inadvertently affected, at least 10% of initiating devices that are not directly affected by the change, up to a maximum of 50 devices, must also be tested and proper system operation verified.

This system meets NFPA requirements for indoor dry operation at 0-49° C/32-120° F 93 ±2% RH (non-condensing) at 32 ±2° C/90 ±3° F. However, the useful life of the system's standby batteries and the electronic components may be adversely affected by extreme temperature ranges and humidity. Therefore, it is recommended that this system and all peripherals be installed in an environment with a nominal room temperature of 15-27° C/60-80° F.

Verify that wire sizes are adequate for all initiating and indicating device loops. Refer to manual Specifications section for maximum allowable I.R. drop from the specified device voltage.

and at a relative humidity of

Like all solid state electronic devices, this system may operate erratically or can be damaged when subjected to lightning-induced transients. Although no system is completely immune from lightning transients and interferences, proper grounding will reduce susceptibility.

Overhead or outside aerial wiring is not recommended, due to an increased susceptibility to nearby lightning strikes.

Consult with the Technical Services Department if any problems are anticipated or encountered.

Disconnect AC power and batteries prior to removing or inserting circuit boards. Failure to do so can damage circuits.

Remove all electronic assemblies prior to any drilling, filing, reaming, or punching of the enclosure. When possible, make all cable entries from the sides or rear. Before making modifications, verify that they will not interfere with battery, transformer, and printed circuit board location.

Do not tighten screw terminals more than 9 in-lbs. Over-tightening may damage threads, resulting in reduced terminal contact pressure and difficulty with screw terminal removal.

This system contains static-sensitive components.

Always ground yourself with a proper wrist strap before handling any circuits so that static charges are removed from the body. Use static-suppressive packaging to protect electronic assemblies removed from the unit.

Follow the instructions in the installation, operating, and programming manuals. These instructions must be followed to avoid damage to the control panel and associated equipment. FACP operation and reliability depend upon proper installation by authorized personnel.

FCC Warning

WARNING: This equipment generates, uses, and can

radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for class A computing device pursuant to Subpart B of Part 15 of FCC Rules, which is designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user will be required to correct the interference at their own expense.

PrecauLarge.PMD 02/26/2007

Canadian Requirements

This digital apparatus does not exceed the Class A limits for radiation noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

Le present appareil numerique n'emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la classe A prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.

Table of Contents

CHAPTER 1: Product Description .....................................................................................................................10

Product Features ............................................................................................................................................11

Specifications ................................................................................................................................................15

Indicators ......................................................................................................................................................17

LEDs Located on Main Circuit Board: ..................................................................................................17

ACC-ZPM Zone Page Module (ACC-25/50DAZS Only) .....................................................................17

ACC-AAM25 Audio Amplifier Module ................................................................................................ 17

Circuits .......................................................................................................................................................... 18

Components ..................................................................................................................................................19

Optional Modules .........................................................................................................................................20

Getting Started .............................................................................................................................................. 21

ACC-25/50 With ACC-25/50DA(s), System Requiring Greater Than 50 Watts of Audio Power ......... 21

ACC-25/50ZS Wit h ACC- 25/50DAZS, System Requiring Greater Than 50 Watts of Audio Power .... 21

CHAPTER 2: Field Programming ...................................................................................................................... 22

S1 DIP Switch Settings on Distributed Audio Motherboard ......................................................................... 23

S2 DIP Switch Settings on Distributed Audio Motherboard ......................................................................... 24

S3 - Battery Charger Switch on Distributed Audio Motherboard ................................................................. 24

ACC-ZPM Zone Page Module ......................................................................................................................25

S1 DIP Switch Settings on ACC-ZPM .................................................................................................. 25

S2 and S3 Addressing Rotary Switches .................................................................................................25

ACC-ZSM Zone Splitter Module ..................................................................................................................26

Switch SW1 on ACC-AAM25 Audio Amplifier Module .............................................................................26

Switch SW1 Settings on Optional FC-MGM Module .................................................................................. 26

CHAPTER 3: Installation ....................................................................................................................................28

Mounting .......................................................................................................................................................28

Backbox Installation .....................................................................................................................................28

Transformer Installation .........................................................................................................................31

Operating Power ...........................................................................................................................................32

Auxiliary DC Power Output Connections ..................................................................................................... 33

Input Circuits .................................................................................................................................................33

Master Command Bus ............................................................................................................................ 33

CMD Input Circuits ............................................................................................................................... 34

Trouble Contact Input ............................................................................................................................34

Output Circuits .............................................................................................................................................. 35

Trouble Relay - TB1 ..............................................................................................................................35

AC Power Loss Relay - TB11 ................................................................................................................35

Notification Appliance Circuit (Speakers) ............................................................................................. 35

ACC-ZPM Zone Page Module - Zone System Serial Link ....................................................................36

ACC-ZSM Zone Splitter Module .......................................................................................................... 37

UL Power-limited Wiring Requirements ...................................................................................................... 38

Installation of Option Modules .....................................................................................................................39

Audio Amplifier Module [ACC-AAM25] .............................................................................................39

70.7 V

Transformer Module (FC-XRM70) ......................................................................................40

RMS

FC-MGM Message Generator Module ..................................................................................................41

FC-LPS Local Playback Speaker Module ..............................................................................................42

CHAPTER 4: Operating Instructions ................................................................................................................ 43

Message Recording .......................................................................................................................................43

Record Push Button (on optional FC-MGM Module) ...........................................................................43

Playback Button .....................................................................................................................................44

LEDs on Main Circuit Board .................................................................................................................45

LEDs on Optional Message Generator Module (FC-MGM) ................................................................. 45

LEDs on Audio Amplifier Module ........................................................................................................ 45

ACC-25/50DA 52265:B 1/30/08

Table of Contents

LEDs on ACC-ZPM (ACC-25/50DAZS Only) ..................................................................................... 45

Operation ......................................................................................................................................................46

Fire Alarm .............................................................................................................................................. 46

Fire Alarm Restoral ...............................................................................................................................46

General Page Using Optional Remote Microphone (ACC-25/50DA Only) .......................................... 46

Emergency Page Using Optional Remote Microphone (ACC-25/50DA Only) ..................................... 46

Trouble Condition Response ..................................................................................................................46

Trouble Condition Restoral ....................................................................................................................48

CHAPTER 5: Application Examples .................................................................................................................. 49

ACC-25/50 & ACC-25/50DA Step-by-Step Install/Setup ............................................................................ 49

ACC-25/50ZS & ACC-25/50DAZS Step-by-Step Install/Setup ...................................................................49

One Speaker Circuit ...................................................................................................................................... 50

Single Channel ....................................................................................................................................... 50

Dual Channel ......................................................................................................................................... 51

One Speaker Circuit With Backup ................................................................................................................ 52

Single Channel ....................................................................................................................................... 52

Dual Channel ......................................................................................................................................... 53

Two Speaker Circuits .................................................................................................................................... 54

Single Channel ....................................................................................................................................... 54

Dual Channel ......................................................................................................................................... 55

ACC-25/50DA High-Power, Multi-floor Application .................................................................................. 56

ACC-25/50 Series and ACC-25/50DA Installation ...................................................................................... 57

16 Theater Cineplex Utilizing ACC-25/50ZS ............................................................................................... 59

Audio Command Center 24 Zone System .....................................................................................................60

CHAPTER 6: Power Supply Calculations ......................................................................................................... 61

Overview .......................................................................................................................................................61

Calculating the AC Branch Circuit ............................................................................................................... 61

Calculating the System Current Draw ...........................................................................................................61

Overview ................................................................................................................................................ 61

How to use Table 6-2 to calculate system current draws ...................................................................... 62

Calculating the Battery Size .......................................................................................................................... 63

NFPA Battery Requirements .................................................................................................................. 63

Selecting and Locating Batteries ........................................................................................................... 63

Digital Voice Messages ...........................................................................................................................................64

Addressable Module Connections .........................................................................................................................65

Wiring Requirements .............................................................................................................................................66

ACC-25/50DA 52265:B 1/30/08 5

Notes

ACC-25/50DA 52265:B 1/30/08

This audio panel has been designed to comply with standards set forth by the following regulatory agencies:

• Underwriters Laboratories Standard UL 864

• NFPA 72 National Fire Alarm Code

Before proceeding, the installer should be familiar with the following documents.

NFPA Standards This Audio Distribution Panel complies with the following NFPA Standards:

NFPA 72 National Fire Alarm Code Note: Audible signal appliances used in public mode applications, are required to have minimum

sound levels of 75 dBA at 10 feet (3 meters) and a maximum level of 120 dBA at the minimum hearing distance from the audible appliance.

To ensure that the appliance is clearly heard, the audible appliance sound level must be at least 15 dBA above the average ambient sound level or 5 dBA above the maximum sound level with a duration of at least 60 seconds, depending on which level is greater, with the sound level being measured 5 feet (1.5 meters) above the floor.

Underwriters Laboratories Documents:

UL 38 Manually Actuated Signaling Boxes UL 217 Smoke Detectors, Single and Multiple Station UL 228 Door Closers–Holders for Fire Protective Signaling Systems UL 268 Smoke Detectors for Fire Protective Signaling Systems UL 268A Smoke Detectors for Duct Applications UL 346 Waterflow Indicators for Fire Protective Signaling Systems UL 464 Audible Signaling Appliances UL 521 Heat Detectors for Fire Protective Signaling Systems UL 864 Standard for Control Units for Fire Protective Signaling Systems UL 1481 Power Supplies for Fire Protective Signaling Systems UL 1638 Visual Signaling Appliances UL 1711 Amplifiers for Fire Protective Signaling Systems UL 1971 Signaling Devices for Hearing Impaired

Other:

NEC Article 250 Grounding NEC Article 300 Wiring Methods NEC Article 760 Fire Protective Signaling Systems Applicable Local and State Building Codes Requirements of the Local Authority Having Jurisdiction (LAHJ)

Fire•Lite Documents

Fire•Lite Device Compatibility Document Document #15384 FCPS-24F(E) Field Charger/Power Supply Document #50079 FCPS-2404 Field Charger/Power Supply Document #51486 FCPS-24FS Field Charger/Power Supply Document #51883 MS-9200(C)/E Technical Manual Document #51003 MS-9200UDTechnical Manual Document #51906 MS-9600 Technical Manual Document #51335 MS-5210UDTechnical Manual Document #50193 ACC-25/50 Series Manual Document #51889 SLC Wiring Manual (with addressable devices)Document #51309

This product has been certified to comply with the requirements in the Standard for Control Units and Accessories for Fire Alarm Systems, UL 864, 9th Edition. Operation of this product with products not tested for UL 864, 9th Edition has not been evaluated. Such operation requires the approval of the local Authority Having Jurisdiction (AHJ).

ACC-25/50DA 52265:B 1/30/08 7

25W Speaker Circuit

To Additional ACC-25/50DA Panels

ACC-25/50DA

Audio Riser

Audio Command Center Distributed System

Audio Riser

25W Speaker Circuit

Master Command Bus

ACC-25/50DA

FACP Control

Audio Riser

Master Command Bus

Audio Riser

FACP Control

ACC-25/50

CMD inputs on the ACC-25/50 and ACC-25/50DA(s)

1. The F ACP can automatically control the audio system via the

FACP Control

8 ACC-25/50DA 52265:B 1/30/08

2. The Audio Riser connects the audio output of the ACC-25/50

to each of the ACC-25/50DA(s).

the ACC-25/50 to the ACC-25/50DA(s).

configuration.

3. The Master Command Bus provides an All-Call trigger from

4. Maximum of 25 Distributed Audio panels may be used in this

accdadistsys.CDR

Speaker Circuit #9

Speaker Circuit #16

Speaker Circuit #17

Speaker Circuit #24

Audio Riser

Up to 24 Zones @ 150W (max.)

Audio Command Center Zone System

Audio Riser

Speaker Circuit #1

ACC-25/50DA

Speaker Circuit #8

ACC-25/50DA

ACC Control Serial Link (RS-485)

ACC-25/50

Zone Split Configuration

CMD inputs on the ACC-25/50ZS.

50ZS to each of the ACC-25/50DAZS(s) to distribute alarm

or paging audio.

the routing of the alarm or paging audio.

survivability from attack by fire requirements in National

Fire Alarm Code, NFPA 72.

1. The FACP controls the audio system via the ACS Link or

2. The Audio Riser connects the audio output of the ACC-25/

Automatic Control via the

ACS Link or CMD Input

ACC-25/50DA 52265:B 1/30/08 9

3. The ACC-25/50ZS uses the Control Serial Link to control

4. Riser conductors must be installed in accordance with the

accdazsdistsys.CDR

Product Description

CHAPTER 1 Pr oduct Description

The AUDIO•COMMAND•CENTER•25/50DA Distributed Panel (ACC-25/50DA) and AUDIO•COMMAND•CENTER•25/50DAZS Zone System Distributed Panel (ACC-25/50DAZS) are single channel, 25 watt, 25 V gency voice evacuation panels which are designed to interface directly to the AUDIO•COMMAND•CENTER•25/50 (ACC-25/50) Series audio panels. The ACC-25/50DA Series, which supports up to eight speaker circuits, can be used to distribute voice evacuation audio over a building’s speaker system. The audio riser input provides automatic gain control (AGC) which compensates for any audio signal loss due to circuit loading or cable length, ensuring that a full output signal is delivered to the speakers. An optional FC-MGM message generator is available with standard pre-recorded message or programmable message capability (up to sixty seconds). An integral power supply with battery charger supplies operational power. An ACC-AAM25 audio amplifier is provided standard with each base unit. An optional second ACC-AAM25 amplifier is also available for backup purposes or to provide an additional 25 watt speaker circuit. Optional 70 V

conversion modules are also available for installations where 70 V

RMS

to be installed or already exist. The modular design allows for ease-of-serviceability.

The ACC-25/50DA can be automatically activated by the five CMD inputs from an FACP. The ACC-25/50DAZS can be automatically activated via the Zone System serial communications link from the ACC-25/50ZS.

, emer-

RMS

speakers are

RMS

T wo Command Input Circuits can be independently field programmed for activation by an FACP Notification Appliance Circuit reverse polarity or by closure of a supervised normally open contact and three Command Input Circuits activate on contact closure. CMD 1 and CMD 2 provide terminals for NAC input and output to allow instal lati on of the audio panel anywhere along the NAC circuit being used to activate it.

The ACC-25/50DAZS includes an ACC-ZPM Zone Page Module and an ACC-ZSM Zone Splitter Module. These modules provide up to eight speaker circuits that may be manually or automatically activated. Significant technological enhancements set the ACC-25/50DA Series apart from other voice panels. These enhancements include full supervision in both active (alarm or music) and standby conditions. Note: Music cannot be used for ACC-25/50DAZS. Supervision is provided for:

 amplifier outputs  field wiring (shorts and opens)  optional message generator (FC-MGM)  all tone generators  optional remote microphone

If the audio riser input fails, the distributed audio panel can be programmed to switch to the built-in tone generator or optional FC-MGM Message Generator. If the FC-MGM fails or is not installed, the tone generators on the main circuit board can be automatically switched in as backups.

Power is fed independently

to each amplifier so that a short circuit in one amplifier will not shut down the other. Full output power of 25 watts per amplifier is generated while in a low battery condition. Power is not diminished when the optional 70 V

transformer module is installed. Audio is amplified utilizing modern integrated circuits as

RMS

opposed to transformer technology. This provides for very low signal distortion for crystal clear audio.

Primary applications for the audio panels include structures such as restaurants, schools, auditoriums, places of worship, buildings with occupancies over 50, etc. The ACC-25/50DA Distributed Audio Series is designed to interface directly to addressable or conventional fire alarm control panels or with the ACC-25/50 series audio control panels to distribute audio in systems that require more than 50 watts.

ACC-25/50DA 52265:B 1/30/08

Product Features

1.1 Product Features

• 25 watts of 25 V

audio power (expandable to 50 watts) per panel

RMS

• Automatic gain control (AGC) circuit ensures an unattenuated audio signal on the audio riser input

• Optional 70.7 V

conversion module available for each amplifier (note that speaker wiring continues to be

RMS

supervised in standby, alarm and when background music is playing with this option module installed)

• Modular design for maximum system flexibility

• Unobstructed module access and removable terminal blocks for ease of servicing and module replacement

• Designed to allow easy system expansion

• Five Command Input Circuits:  CMD1 and CMD2 are field selectable to be activated from 12 or 24 VDC Notification Appliance

Circuits (reverse polarity) or contact closures

 CMD3, CMD4 and CMD5 are activated by contact closures

• Speaker Circuits

 single Style Y or Z speaker circuit (one ACC-AAM25 Audio Amplifier provided with base unit)  two Style Y or Style Z speaker circuits (with optional second ACC-AAM25 Audio Amplifier instal led)  eight Style Y or four Style Z speaker circuits using ACC-ZSM Zone Splitter Module

• ACC-25/50DAZS can be controlled by the ACC-25/50ZS via the Zone System serial link (EIA-485) to the

ACC-ZPM.

• Optional FC-MGM Message Generator Module with standard, prerecorded message:

“May I have your attention please. May I have your attention please. The signal you have just heard indicates a report of a fire in this building. Please proceed to the nearest exit and leave the building. Do not reenter the building unless directed to do so by the proper authorities.”

• Field selectable message capability and custom message field recording capability using optional FC-MGM

module’s audio input RCA jack or mini Audio jack for connection to a personal computer

• Record/playback control switches on optional FC-MGM

• One 60-second, two 30-second, three 20-second or four 15-second custom messages on optional FC-MGM

• Integral tone generators field selectable for steady, slow-whoop, high-low or chime tones

• Powered by integral AC power supply or batteries during AC fail

• T wo Form-C trouble relays:

 System Trouble Relay - TB1  AC Power Loss Relay - TB11

• 35 mA Special Application auxiliary power output for addressable modules (when interfaced with the

Fire•Lite MS-9200(E), MS-9200UD or MS-9600 FACP or equivalent) and End-of-Line power supervision relays

• Optional FC-RM Remote Microphone (includes cabinet and FC-MIM Microphone Interface Module). Refer

to the FC-RM Product Installation Document #51247 for additional information

• Optional local playback speaker (FC-LPS) for use with optional FC-MGM

• System Status LEDs (refer to Section 1.3 "Indicators" on page 17)

ACC-25/50DA 52265:B 1/30/08 11

Product Features

FIGURE 1-1:Distributed Audio Main Board

Specific Application Power 35 mA nonsupervised power-limited

Form-C AC Loss Relay nonsupervised

Input Triggersupervised (activation by reverse polarityactive polarity shown) use ELR specified for triggering source

nonsupervised OUT IN

shield

All CMD inputs and Trouble Contact Closure are supervised and power-limited and require a 4.7KΩ ELR, P/N: 27072

CMD1 & CMD 2 Input

Trigger by contact closure or NAC reverse polarity - alarm polarity

shown

OUT IN

CMD3, CMD4 & CMD5 Input

Trigger by contact closure

alarm polarity shown (inputs only)

1 2

for monitoring trouble contacts of an external device such as charger or

power supply

1 2

S3 Charger Enable/

Disable Switch

(shown in charger

enabled position)

Connector for Transformer

Form-C Trouble Relay (nonsupervised)

FC-MIM

AC25DAMNT1.CDR

HOT

(supervised,

nonpower-limited)

EARTH

NEUTRAL

AC Power Only (supervised,

nonpower-limited)

Refer to AC Power in Section

1.2 "Specifications" on page 15

ACC-25/50DA 52265:B 1/30/08

Battery

Product Features

FIGURE 1-2:

Distributed Audio Board With Amplifiers

CAUTION: Match proper polarity connections to field wiring and speakers. Polarity shown is in the standby and alarm conditions.

Speaker Circuits are supervised and power-limited ELR Resistor required only for Style Y (Class B) circuits.

4.75 KΩ, 1 watt P/N: 75470

+ - + -

ACC-25/50DA 52265:B 1/30/08 13

AC25DAMNT2.CDR

Product Features

ACC-ZSM and ACC-ZPM Modules for Distributed Audio with Zone Splitter Feature Only

FIGURE 1-3:Distributed Audio Board With ACC-ZPM & ACC-ZSM Modules

Circuits are supervised and power-limited ELRs 4.75KΩ P/N: 27589

Speaker Circuits are supervised and power-limited

5 4 3 2 1

1 2 3 4 1 2 3 4

1 2 3 4

AC25DAZSMNT.CDR

(supervised)

1 2 3 4

ACC-25/50DA 52265:B 1/30/08

Specifications

1.2 Specifications

AC Power - TB10

ACC-25/50DA(ZS):120 VAC, 50/60 Hz, 2.0 amp. Supervised, nonpower-limited circuit Wire size: minimum #14 AWG with 600 V insulation.

AC Loss Relay - TB11

Operation: normally energized fail-safe relay transfers on AC power loss for independent monitoring by DACT. AC Loss relay contact rating: 2.0 amps @ 30 VDC (resistive), 0.6 amps @ 30 VAC (resistive) Nonsupervised circuit

Battery (lead acid only) - P11

Maximum Charging Circuit: Normal Flat Charge - 27.6V @ 0.800 amp Maximum Charger Capacity: 18 Amp Hour battery (cabinet holds maximum 18 Amp Hour Battery.) Supervised, nonpower-limited circuit

Command Input Circuits (alarm polarities shown)

• CMD1 - TB6 Terminals 3(+) & 4(-) are input terminals and Terminals 1(-) and 2(+) are output terminals which provide feed through of the NAC circuits to NAC devices down stream

• CMD2 - TB7 Terminals 3(+) & 4(-) are input terminals and Terminals 1(-) and 2(+) are output terminals which provide feed through of the NAC circuits to NAC devices down stream

• CMD3 - TB2 Terminals 1(+) & 2(-) are input terminals for contact closure only

• CMD4 - TB3 Terminals 1(+) & 2(-) are input terminals for contact closure only

• CMD5 - TB4 Terminals 1(+) & 2(-) are input terminals for contact closure only

Operation: CMD1 & CMD2 circuits are independently field programmable to activate amplifiers on NAC polarity reversal or contact-closure. IMPORTANT! When CMD1 and CMD2 are configured for reverse polarity, the

NAC cannot be Coded.

CMD3, CMD4 and CMD5 are fixed to activate on contact closure only Power-limited and supervised circuitry Normal Operating Voltage: 10.5 VDC - 29 VDC Maximum Voltage: 29 VDC NAC Reverse Polarity Current (requires End-of-Line Resistor from NAC): 1.6 mA maximum. Contact Closure Operation Current (requires 4.7K, ½ watt End-of-Line Resistor P/N 27072): 6.6 mA maximum Maximum Wiring Impedance CMD1 - CMD5 (Contact Closure Operation): 200Ω Maximum Input Impedance:

• CMD1 & CMD2 (Reverse Polarity Operation): 20KΩ

• CMD1 - CMD5 (Contact Closure Operation): 3.4KΩ

Audio Amplifier Module - Standard ACC-AAM25 Amplifier plugs into P1 of main circuit board, optional ACC-AAM25 Amplifier plugs into P2 of main circuit board

Backup Audio In - TB2, Terminals 1(+) & 2(-) [Out Terminals 3(+) & 4(-)] on Amplifier Module

Operation: When TB2 is wired between the two amplifiers of a panel, the optional amplifier provides backup to the standard amplifier. Switch S1 on the backup amplifier must be 'ON' and jumpers placed from backup amplifier TB2 Terminal 3 to standard amplifier TB2 Terminal 1 and from backup amplifier TB2 Terminal 4 to standard amplifier TB2 Terminal 2. Refer to Section 5.4 "One Speaker Circuit With Backup" on page 52, for additional information.

ACC-25/50DA 52265:B 1/30/08 15

Specifications

Speaker Circuit - TB1 Terminals 3(+) & 4(-) Style Y, 3(+), 4(-), 5(+) & 6(-) Style Z, 1 & 2 Shield (Standby and Alarm Polarity Shown) on Amplifier Module

Power-limited, supervised circuitry Operation: Circuit can be wired Style Y or Style Z Normal Operating Voltage: 25 V

(70.7 V

@ 350 mA max. with maximum Load Impedance of 200Ω operation possible by plugging

RMS

@ 1 amp max. and maximum Load Impedance of 25Ω

RMS

optional FC-XRM70 conversion module into P1 of audio amplifier). Circuit wiring is supervised during standby, alarm and when background music is playing Output Power: 25 watts (20 watts when background music is employed). Frequency Range: 400Hz - 4,000Hz Maximum total capacitance for each AAM-25/50: 250 uF. End-of-Line Resistor required for Style Y circuit: 4.75 KΩ, 1 watt (P/N: 75470)

ACC-ZSM Zone Splitter Module and ACC-ZPM Zone Page Module

Power-limited circuitry Operation: Circuits on ACC-ZSM can be wired as eight Style Y or four Style Z Normal Operating Voltage for Speaker Circuits: 25 V

(70.0 V

@ 350 mA max. with maximum Load Impedance of 200Ω operation possible by plugging

RMS

@1 amp Max. and maximum Load Impedance of 25Ω

RMS

optional FC-XRM70 conversion module into P1 of audio amplifier). Speaker circuit wiring is supervised during standby and alarm. (Note that background music is not permitted

Zone Splitter configuration since open-circuit fault detection is not possible)

Output Power: 25 watts total. Frequency Range: 400Hz - 4,000Hz Maximum total capacitance for ACC-AAM25: 250 µF. (Note that the total

capacitance for the ACC-ZSM

speaker outputs must not exceed the maximum of 250 µF).

End-of-Line Resistor required for Style Y (Class B) speaker circuit: 4.75 KΩ, 1 watt (P/N: 75470) TB1 on ACC-ZPM: ACS (EIA-485) electrically isolated link to FACP provides programmed speaker control

Master CMD Bus - TB8 Terminals 1(-), 2(+), 3(+) & 4(-) (active polarity shown)

Provides reverse polarity trigger input from ACC-25/50 Series Master Command Bus Output. Supervised and power-limited circuitry Normal Operating Voltage: 24 VDC regulated, filtered. Maximum Voltage: 25.4 VDC Reverse Polarity Current: 125 mA maximum. Standby Voltage: -5 VDC. Short Circuit Current: 0.5 mA. Maximum Load Resistance: 200 ohms. Wiring connections to Master CMD Bus Circuit:

 End-of-Line Resistor required for Class B using Terminals 2(+) & 1(-): 4.7 KΩ, ½ watt (P/N: 27072)  Class A (no End-of-Line Resistor) requires the wiring of Terminal 2(+) and Terminal 1(-) to next

Distributed Audio Panel

Special Application Power (Aux. Power) - TB9 Terminals 1(+) & 2(-)

Up to 35 mA @ 24 VDC special application power is available for powering addressable modules and associated End-of-Line power supervision relays. Output is unsupervised.

Power-limited circuitry. Refer to the Device Compatibility Document for a list of compatible devices.

Form-C Trouble Relay - TB1

Normally energized fail-safe relay transfers its contacts on any panel trouble condition. TB1 Form-C relay contact rating: 2.0 amps @ 30 VDC (resistive), 0.6 amps @ 30 VAC (resistive).

ACC-25/50DA 52265:B 1/30/08

Indicators

External Audio Inputs - Optional FC-MGM Message Generator Module on P4

• RCA Audio Jack Input (female connector) Input Impedance: 30KΩ maximum

Input Voltage: 700 mV

maximum

RMS

Input Current: 1 mA maximum @ 700 mV Requires preamplifier output. Mates to an RCA phono 'plug' - 3mm diameter, 10mm length, 9mm

shell diameter.

• 3.5 mm PC Audio Jack Input (female connector) Input Impedance: 150KΩ maximum

Input Voltage: 700 mV

maximum

RMS

Input Current: 1 mA maximum @ 700 mV Requires preamplifier output Interfaces to personal computer line output or headset output (Note: Some laptop personal computers

only provide an audio output for headphones. It may be necessary to adjust the headphone output level for proper recording of voice messages.)

• Microphone Connector for optional standard microphone P/N: FC-MICROPHONE

FC-MIM Microphone Interface Module (Optional) - P7 Connector

Connector P7 provides a connection for:

• the optional FC-MIM Microphone Interface Module which is used to connect the FC-RM Remote Micro-

phone Module to provide remote microphone paging capabilities.

Audio Riser - TB5

Magnetically isolated input utilizes signals up to 70.7 V

with a frequency range of 400 Hz to 4 KHz.

RMS

Note: For ACC-25/50DA Only - If background music is enabled, the maximum input signal to the riser:

• with a 20 watt speaker load per amplifier cannot exceed 25 V

• with a 25 watt speaker load per amplifier cannot exceed 20 V

RMS

Trouble Contact Input - TB12

Non-supervised, non-isolated trouble input that can be used by chargers, power supplies, etc. Contact Closure Operation Current: 1.2 mA maximum Standby Current: n/a

1.3 Indicators

1.3.1 LEDs Located on Main Circuit Board:

• Power ON (green)

• AC Power (green)

• Active (green)

• System Trouble (yellow)

• Tone Generator Trouble (yellow)

• Battery Trouble (yellow)

• Charger Trouble (yellow)

• Ground Fault (yellow)

1.3.2 ACC-ZPM Zone Page Module (ACC-25/50DAZS Only)

• ACC Comm (green LED) - indicates Communication is active on the serial link to the ACC-25/50ZS. Off

indicates no communication.

1.3.3 ACC-AAM25 Audio Amplifier Module

• Circuit Trouble (yellow) - Amplifier module

• Amplifier Supervision (green) - Amplifier module

ACC-25/50DA 52265:B 1/30/08 17

Circuits

1.4 Circuits

Input Circuits - CMD1, CMD2, CMD3, CMD4 & CMD5

• Input circuits CMD1 and CMD2 are independently field programmable to accept Notification Appliance Cir-

cuits or normally open contacts. (IMPORTANT! When CMD1 and CMD2 are configured for reverse polarity, the NAC cannot be Coded). Terminals are provided to allow feed-through of the NACs, allowing placement of the ACC-25/50 Series anywhere along a Notification Appliance Circuit. A trouble on the ACC25/50DA will cause relay contacts at the out terminals of CMD1 to open, causing an NAC circuit trouble at the FACP. Note: The ACC-25/50DA will not open the out terminals while in alarm. Monitoring ACC-25/

50DA troubles while in alarm requires use of independent trouble relay at TB1.

• Programming CMD1 and/or CMD2 for activation on contact closure will allow activation of the amplifiers on a normally open contact transfer to the closed condition. Contact wiring is supervised for open conditions. A short will cause amplifier activation (contact closure).

• Input circuits CMD3, CMD4 and CMD5 will only activate on contact closure which will allow activation of the amplifiers on a normally open contact transfer to the closed condition. Contact wiring is supervised for open conditions.

• Contact Closure Trouble Input is used for identification of troubles on an optional external power supply or charger.

Audio Input Jacks (located on optional FC-MGM Message Generator Module)

• RCA Jack provides convenient connection to an audio source such as a tape player for recording a new digital message.

• PC Jack provides convenient connection to an audio source such as a personal computer for recording a new digital message. The jack allows vertical plug-in of a standard mini-jack cable.

• Microphone Jack provides connection for a standard compatible microphone.

Output Circuits

• Specific Application Power Output, 35 mA @ 24 VDC.

• Main circuit provides a 24 Volt Battery Charger (up to 18 AH batteries) @ 800 mA maximum .

Master Command Bus

• Normal Operating Voltage: 24 VDC regulated, fil tered . Reverse Polarity Current 125 mA maximum.

• Control bus from the ACC-25/50 Series or other UL listed compatible audio products.

Notification Appliance Circuit

• One NAC Speaker Circuit Style Y or Style Z with each ACC-AAM25 amplif ier module.

• Four NAC Speaker Circuits Style Z or eight Style Y with ACC-ZSM.

Relays

• One Form-C Trouble Relay. TB1 Contacts are rated 2.0 amps @ 30 VDC (resistive) and 0.6 amps @ 30 VAC (resistive).

• One Form-C AC Loss Relay. TB11 Contacts are rated 2.0 amps @ 30 VDC (resistive) and 0.6 amps 30 VAC (resistive).

FC-MIM Microphone Interface Module

• Connector P7 provides a connection for the optional FC-MIM Microphone Interface Module which is used to connect the FC-RM Remote Microphone Module to provide remote microphone paging capabilities (refer to Remote Microphone Installation document #51247).

ACC-ZPM Zone Page Module

• Connector P3 provides a connection for the ACC-ZPM Zone Page Module which is used to annunciate and control the selection of speaker circuits. Refer to Section 3.6.4 "ACC-ZPM Zone Page Module - Zone System Serial Link" on page 36.

Local Speaker

• The removable local speaker P/N: FC-LPS can be mounted on the ACC-25/50DA main circuit board and connected to the FC-MGM module, to be used for reviewing the digital message without broadcasting over the system speakers. The local speaker must be installed to take adva ntage of the playback feature. The FC-LPS

cannot be permanently installed and therefore must be removed after use.

ACC-25/50DA 52265:B 1/30/08

Components

1.5 Components

Main Circuit Board

Audio Amplifier

FIGURE 1-4:Main Circuit Board

The Distributed Audio main circuit board contains the system's CPU, tone generators, special application auxiliary 35 mA power output, DIP switches for field programmable features, other primary components and wiring interface components. One amplifier module is supplied mounted to the main circuit board along with one ACC-ZPM Zone Page Module and one ACC-ZSM Zone Splitter Module (refer to Figure 1-3 on page 14). The main circuit board is delivered premounted in the cabinet.

Audio Amplifier Module [ACC-AAM25]

A single Audio Amplifier Module is installed in the Distributed Audio Panel. The amplifier provides 25 watts of power at 25 V speaker power to 50 watts. An optional module, P/N: FC-XRM70, converts the 25 V

. A second optional ACC-AAM25 can be installed as a backup to the primary or to expand

RMS

output to 70.7 V

RMS

One fully supervised and power-limited speaker circuit is provided on the amplifier module. The circuit can be wired for Style Y (Class B) or Style Z (Class A) operation.

LEDs are provided to indicate Amplifier Supervision (green indicates amplifier is functional) and Circuit Trouble (yellow indicates field wiring fault or amplifier fault). The LEDs are only visible with the panel door open.

Cabinet

The cabinet is red with an attractive navy blue front overlay . The backbox measures 26.0" x 15.5" x 4.75" and provides space for two batteries (up to 18 Amp Hours).

RMS

AC25DAMAST.CDR

FIGURE 1-5:Cabinet

ACC-2550DA.CDR

Batteries

The cabinet provides space for 18 Amp Hour batteries (charged by integral Power Supply/Battery Charger module).

ACC-25/50DA 52265:B 1/30/08 19

Optional Modules

1.6 Optional Modules

ACC-AAM25 Audio Amplifier Module

An optional second identical audio amplifier can be plugged into connector P2 located in the lower center of the main circuit board in the Distributed Audio Panel. This amplifier also provides 25 watts of power at 25 V can therefore be used to expand system power to 50 watts (providing dual 25 watt speaker circuits) or it can be used as a backup amplifier. An option module can also be used to convert the 25 V

Note: For ease of access, all wiring should be connected to the terminals on the main circuit board terminal blocks prior to installing the secondary Audio Amplifier Module.

output to 70.7 V

RMS

and

FC-XRM70 Transformer Module 70.7 V

RMS

This optional module plugs into connector P1 of the Audio Amplifier Module and provides conversion from 25 V

to 70.7 V

RMS

at full rated 25 watts output power.

RMS

FC-MGM Message Generator Module

This optional module provides custom message recording capabilities and system audio backu p. The cust om message may be recorded from an alternate audio source connected to the audio jack on the FC-MGM. In addition, built-in tone generators, which are located on the main circuit board, provide tones before and after the message as well as backup on message failure. The FACP can automatically control the ACC-25/50DA via CMD2-CMD5 to generate voice messages over its local speaker circuits.

Note: The ACC-25/50DAZS uses the FC-MGM for backup purposes if the message from the ACC-25/50ZS is lost or interrupted.

FC-LPS Local Playback Speaker

This optional speaker module is mounted on the Distributed Audio Panel main circuit board and connects to the optional FC-MGM module. This unit allows reviewing of the digital messages locally without broadcasting over the system speakers. The optional module must be installed in order to take advantage of the Playback feature. It may be temporarily used to test recorded messages. A mounting kit is included for this purpose. The FC-LPS cannot be permanently mounted in the enclosure and must be removed after use.

FC-RM Remote Microphone Module

The optional microphone module FC-RM, provides general paging capabilities through the remote microphone from the ACC-25/50DA. Announcements can be broadcast over the speaker circuits by pressing the Remote Microphone keyswitch. The FC-MIM Microphone Interface Module must be installed in the ACC-25/50DA for connection to the FC-RM (refer to the FC-RM Product Installation Document #51247 for installation information).

Note: All-Call Paging operations initiated from the ACC-25/50 Series main panel will override the remote microphone.

The ACC-25/50DAZS panel does not support the FC-RM. All remote microphone connections are made on the ACC-25/50ZS main panel.

ACC-25/50DA 52265:B 1/30/08

Getting Started

1.7 Getting Started

This section describes the basic guidelines for setting up the ACC-25/50DA Series, assuming that the speaker and FACP cabling has been installed.

1.7.1 ACC-25/50 With ACC-25/50DA(s), System Requiring Greater Than 50 Watts of Audio Power

• Connect the Audio Riser and Master Command Bus (for All-Call) cabling between the ACC-25/50 and ACC-25/50DA panels. Refer to Section 5, 'Application Examples' on page 49.

• Install backboxes and circuit boards as described in Section 3, 'Installation' on page 28.

• Configure the ACC-25/50 for Single Zone operation using DIP switch S3 switches 1, 2 and 3 on the ACC-MCB motherboard. Refer to Section 2, ‘Field Programming’ in the ACC-25/50(ZS) Manual. The ACC-25/50DA DIP switches can be left at the default settings.

• If the optional message generator is installed, record any new voice messages as described in Section 4, 'Operating Instructions' on page 43.

1.7.2 ACC-25/50ZS With ACC-25/50DAZS, System Requiring Greater Than 50 Watts of Audio Power

• Connect the Audio Riser and EIA-485 cabling between the ACC-25/50ZS and ACC-25/50DAZS panels. Refer to Section 5, 'Application Examples' on page 49.

• Install backboxes and circuit boards as described in Section 3, 'Installation' on page 28.

• Configure the ACC-ZPMK on the ACC-25/50ZS with the number of ACC-25/50DAZS panels connected on the Zone System serial link.

• Configure the address wheel located on the ACC-ZPM in the ACC-25/50DAZS panel.

• If the optional message generator is installed, record any new voice messages as described in Section 4, 'Operating Instructions' on page 43.

ACC-25/50DA 52265:B 1/30/08 21

Field Programming

CHAPTER 2 Field Pr ogramming

The ACC-25/50DA can be field programmed using option DIP switches S1 and S2 located in the upper right side of the mother board. It is recommended that tone selection and background music options be reviewed and approved by the local AHJ. Programming DIP switches are also located on the ACC-ZPM Zone Page Module. DIP switches are also located on the optional Message Generator Module (FC-MGM). Refer to the following illustrations for details on DIP switch placement in the ON and OFF positions.

CAUTION: In order to minimize risk of damage to any circuits, do not use conductive tools when configuring DIP

switches.

FIGURE 2-1:Field Programming DIP Switches

S3 shown in Charger Enabled position

FIGURE 2-2:Field Programming DIP Switch for ACC-ZPM

Distributed Audio Panel Mother Board

Switches 1 through 7 shown in OFF position

AC25DAZSSWTC.CDR

Switch 8 shown in ON position

AC25DASWTC.CDR

ACC-ZPM

Switches 1 through 7 shown in OFF position

EIA-485 Addressing Switches

ACC-25/50DA 52265:B 1/30/08

Switch 8 shown in ON position

+ 50 hidden pages