Page 1©2005 Whelen Engineering Company Inc.Form No.13948B (042308)

WPS-2900 SERIESHIGH POWER VOICE

& SIREN SYSTEMOPERATING & TROUBLESHOOTING

MANUAL

51 Winthrop RoadChester, Connecticut 06412-0684Phone: (800) 63SIRENPhone: (860) 526-9504Fax: (860) 526-4784Internet: www.whelen.comSales e-mail: iowsales@whelen.comCustomer Service e-mail: iowserv@whelen.com

Mas

s N

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ENGINEERING COMPANY INC.

Page 2

Table Of Contents

Section I: Overview of System Componentsa) Station Component Locations........................................................................... page 5b) Station Components Defined ............................................................................ page 6

Section II: System Operationsa) Remote Operations ............................................................................................ page 9b) Local Operations ............................................................................................... page 9

Section III: Understanding Station AddressingCentral Point Source.............................................................................................. page 11Governmental ......................................................................................................... page 17

Section IV: TroubleshootingAudio Loss .............................................................................................................. page 18Solar Regulator ...................................................................................................... page 19AC Battery Charger............................................................................................... page 19Digital Voice............................................................................................................ page 21Partial or Full Diagnostic Failure......................................................................... page 21

Section V: System MaintenanceFrequency of Testing and Activation.................................................................... page 22Quarterly Maintenance ......................................................................................... page 23Visual Siren Station Inspection ............................................................................. page 24Siren Cabinet and Components ............................................................................ page 24Speaker Assembly and Pole Top Equipment....................................................... page 24Station Performance Testing ................................................................................. page 25Maintenance Check List........................................................................................ page 27

Illustrations

Fig. 1a: Station Wiring Diagram (designations) ............................................................................ page 3Fig. 1b: Station Wiring Diagram (voltages) ................................................................................... page 4Fig. 2: Siren Cabinet Door Components ........................................................................................ page 5Fig. 3: Station Control Panel ........................................................................................................... page 10Fig. 4: Central Point Source Divisions ........................................................................................... page 11Fig. 5: Single Station Selection ........................................................................................................ page 12Fig. 6: Group Selection - Radial Sector.......................................................................................... page 13Fig. 7: Group Selection - Sub Sector .............................................................................................. page 14Fig. 8: Group Selection - Quadrant ................................................................................................ page 15Fig. 9: Group Selection - All-Call ................................................................................................... page 16Fig. 10: Solar Regulator Connector Pin-Outs ............................................................................... page 20Fig. 11: System LED Diagnostic Indicators ................................................................................... page 29Fig. 12: Control Board Wire Colors ............................................................................................... page 30

IMPORTANT! THIS MANUAL ASSUMES THE READER/TECHNICIAN HAS ANINTERMEDIATE TO ADVANCED LEVEL OF PROFESSIONAL TRAINING IN THEFIELD OF ELECTRONICS.

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Page 5

2

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1

6 a

b

c

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Digital Voice Board

Siren Control Board

Radio or Landline Board*

Control Board Serial Port

Amplifier LED Status Board

Siren Amp 1

Siren Amp 2

Siren Amp 3

Siren Amp 4

Siren Amp 5

Siren Amp 6

Solar Charger Card

Siren Amp 7

Siren Amp 8

Siren Amp 9

Siren Amp 10

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(Optional)

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21

Section I: Overview of System Components

a) Station Component LocationsThe WPS-2900 High-Power Voice and Siren System is comprised of 10 basic models:

Model Driver Info CabinetWPS-2900-1 One (1), 400 Watt Driver Type IIWPS-2900-2 Two (2), 400 Watt Drivers Type IIWPS-2900-3 Three (3), 400 Watt Drivers Type IIWPS-2900-4 Four (4), 400 Watt Drivers Type IIWPS-2900-5 Five (5), 400 Watt Drivers Type IIWPS-2900-6 Six (6), 400 Watt Drivers Type IIWPS-2900-6A Six (6), 400 Watt Drivers Type IIIWPS-2900-7 Seven (7), 400 Watt Drivers Type IIIWPS-2900-8 Eight (8), 400 Watt Drivers Type IIIWPS-2900-9 Nine (9), 400 Watt Drivers Type IIIWPS-2900-10 Ten (10), 400 Watt Drivers Type III

Each system essentially functions in the same manner as do the others. This manual willprovide the necessary information to properly operate, program and diagnose this systemregardless of specific model. If information relevant to a specific model is required, it shallbe presented and noted as such.

The 2900 series systems are comprised of several major components common to all models,although quantities of some components will vary from model to model.

Fig. 2: Siren Cabinet Door Components

Page 6

b) Station Components DefinedControl Board - This component (located on the inside of the upper cabinet door) controlsthe key functions of the WPS2900 system including:

Tone Generation Remote ActivationEvent Timing Rotor ControlRemote Station Status Reporting* (encoding) Local ControlSystem Diagnostics (incl. SI TEST®)

The control board contains a microphone jack for public address and a serial port to allowconnection of our Siren Diagnostic Programming Tool Software (hereafter referred to asSDPTS) to the remote station. The control board is also the location of the diagnostic LED’s.

Siren Amps - These components (located on the inside of the upper cabinet door) receivethe desired tone or message generated by the control board, amplify it and deliver it to thesiren driver.

Siren Driver - This component (located in the speaker assembly) produces the desiredaudible tone or voice message.

Radio or Landline Board (Optional) - This component (located on the inside of the uppercabinet door) receives signals from either the antenna or landline and delivers them to thecontrol board for processing. Through the use of the included radio, the station is alsocapable of transmitting status information back to the control center.

Motherboard - This component (located on the inside of the upper cabinet door) distributesBattery Voltage and signals to all system components that require this voltage. Themotherboard is fused @10 Amps to protect all connected components EXCEPT for the sirenamplifiers and the rotor (they contain their own fuse). The 2nd motherboard (WPS2900-6thru WPS2900-10) is also fused @10 Amps. The Motherboard also distributes signalsbetween the amplifiers and the control board.

AC Battery Charger - This component (located on the inside of the lower cabinet door) uses110 VAC (or 220 VAC) single-phase service to maintain the stations batteries at their propervoltages.

Page 7

Solar Regulator (optional) - This component (located on the inside of the lower cabinetdoor) uses electrical energy collected by a pole-mounted solar panel to maintain the stationbatteries at their proper voltages.

Ammeter - This component (located on the inside of the lower cabinet door) provides avisual indication for the charge current flowing into the batteries from the charger orregulator.

Voltmeter - This component (located on the inside of the lower cabinet door) provides avisual indication of the DC voltage across the batteries.

Auxiliary Control Status Board (optional) - This component (located on the right insidewall of the upper cabinet) is wired to remote switches to facilitate remote operation of aspecific siren station.

Auxiliary Input Control (optional) - This component (located below the “Radio/LandlineBoard” on the rear inside wall of the upper cabinet) is wired to remote switches to facilitatelimited remote operation of a siren station. In contrast to the Auxiliary Control StatusBoard, the Auxiliary Input Control Board does not offer feedback capabilities and is limitedto the following remote activation commands:• All Siren Tones• Cancel• SI TEST®• Digital Voice Messages 1 thru 4

Batteries - These components (located on the inside of the lower cabinet) provide the28VDC necessary for the system to operate.

Battery Disconnect Switch - This component (located on the rear inside wall of the uppercabinet) allows all system batteries to be completely disconnected from the system. NOTE:This switch does not disconnect the batteries from the battery charger or regulator.

Antenna Poly Phaser (optional) - This component suppresses high-voltage (static) chargesthat could be present on the antenna.

Page 8

Antenna (optional) - This component (located on the utility pole) is capable of eitherreceiving signals broadcast from the control center (one-way) or can both transmit andreceive signals to and from the control center (two-way), depending how the system wasordered.

Solar Panel (optional) - This component (located on the utility pole) collects solar energy,converts it to electrical energy and delivers it to the Solar Regulator to maintain the stationbatteries at their proper voltage.

Strobe Control Board (optional) - This component (located on the rear inside wall of theupper cabinet) is a user-defined device that controls a pole-mounted strobe light. This lightcan be configured to activate during specific conditions (example: when any tone or messageis generated).

Intrusion Alarm (optional) - This sensor (located on the door jam of the upper cabinetdoor) detects the opening of the cabinet door. If the station is equipped with this option, thealarm is configured to transmit a signal back to the control center.

Paging Interface (optional) - This component (located below the “Strobe Control Board”on the rear inside wall of the upper cabinet) is a user-defined device that serves as aninterface between the siren cabinet and an existing, in-house public address system. Thisboard has an output relay with a 1 Amp rated closure that can be used for a “Push To Talk”function.

Page 9

Section II: System Operations

a) Remote OperationsRemote operation of a WPS-2900 series siren involves transmitting signals from the controlcenter to the desired station. This is accomplished by using either an encoder andtransmitter or, if the station is so equipped, using an auxiliary control status board that hasbeen wired to switches/controls at the control center. Remote operation is beyond the scopeof this document and will therefore not be addressed. If your system is equipped with anencoder, please refer to the encoder operating manual for information regarding remoteoperation. If your station has been wired to use the auxiliary control status board, refer tothe reference materials provided by the electrical engineer or installer.

b) Local OperationsLocal operation is accomplished through the control panel on the front of the stationcabinet. The functions of these controls are as follows:

Cancel Abruptly stops siren tones without the normal “rampdown” found in several tones. Helpful in the event of anaccidental tone activation.

Wail Produces a slow rise and fall tone.

Attack Produces a faster rise and fall tone (used for designatedCivil Defense National Attack tone).

Alert A steady tone (Civil Defense alert).

Whoop A repetitive rise-only tone.

Hi-Low An alternating two-tone sound.

Air Horn A pulsing air horn sound.

SI TEST® Initiates SI TEST® tone and the optional diagnostic SITEST® routine.

X-mit Carrier Actuates remote station radio transmitter PTT circuit.When tone squelch is used with the transmitter, thetransmit function is used when adjusting tone squelchmodulation.

Page 10

CANCEL

X-MITAUDIO

WAIL ATTACK ALERT

WHOOP HI-LO AIRHORN

SI-TEST

DVMTEST

OPTION

X-MITSTATUS

X-MITCARRIER

ROTORCW

ROTORCCW

X-mit Audio For use with remote station radio transceiver, causestransmission of DTMF tone via RF link for tonemodulation adjustment. The transmit tone level isadjusted with the transmit audio potentiometer locatedon the controller board (see “Fig. 11: System LEDDiagnostic Indicators” page 29).

X-mit Status Transmits station status information and battery voltageto the control center.

DVM Test Activates the Digital Voice Message (DVM) assigned tothe test procedure in the configuration software.

Rotor CW No function with 2900-series equipment.

Rotor CCW No function with 2900-series equipment.

Option As of this printing, the “Option” control has not yet beendefined.

Fig. 3: Station Control Panel

Page 11

4 4

3 3

1 11

QUADRANTS 1-4

RADII

QUADRANT SECTORS

INDIVIDUAL STATIONS

2

3

4

1 2 3 4 5

2 2

4 4

3 3

1 1

2 2

Section III: Understanding Station AddressingEvery Siren Station in a given area code has its own, unique “Station Address”. This addressallows the user to select an individual or a group of stations. As stated elsewhere in thismanual, a valid station address can be any number from 0000 to 9999. This allows for10,000 unique addresses; a staggering number of stations to keep track of. Although it islogistically impossible to have that many stations in a single area code, it does illustrate theimportance of a sensible, intuitive numbering convention for station addresses. This sectionwill outline two types of conventions

Central Point Source: Quadrant, Sector, Radial & Station

Frequently, warning systems are used to notify the public of emergency situations that mayoccur from a single, centralized location. Typically, siren stations would be locatedthroughout a 360° area surrounding this location for a specified distance from the source. Inthis scenario, the Central Point Source convention would be well suited.

For illustration purposes, assume the siren stations are installed within a 5 mile radius of theCentral Point. As such, a Quadrant, Sector, Radial & Station numbering convention wouldallow the selection of any of the following:

• any siren station• all siren stations• any one of four sectors• any one of 5 radii within the sectorsThe area of coverage in this system, a circle, is divided into 4 quadrants. Each quadrant isthen divided into 4 sectors. Each sector is further divided into 5 segments or radii emanatingfrom the center of this siren system.

Fig. 4:Central Point Source Divisions

Page 12

In this system, a stations address is structured as follows:

Digit Allocation

1 Quadrant (1 to 4)2 Sector (1 to 4)3 Radii (1 to 5)4 Individual station within a radian

Here are some sample activations to further illustrate this concept.

Sample 1:

A station with address 1354 would be located in:

Quadrant: 1

Sector: 3 of Quadrant 1

Radial: 5 Station: 4

If an operator selects station 1-3-5-4, only that station will be selected, as shown.

1

1 2

3 4

5

2 3 4 5

1 3 5 4

SINGLE STATION SELECTION

STATION 1354

Fig. 5:Single Station Selection

Page 13

1 2 3 4 5

GROUP SELECTION-RADIAL SECTOR

GROUP 134#

Sample 2:

If the activation of a group of remote stations within a whole segment of a radius within aquadrant and sector is desired, the fourth digit address is substituted with a “Wild Card”,the “#” pound sign.

An address selection of 1 - 3 - 4 - # would activate the system as follows:

Quadrant: 1

Sector: 3 of Quadrant 1Radial: 4

Station: # All stations defined by above

This selection is shown below.

Fig. 6:Group Selection -Radial Sector

Page 14

1 2 3 4 5

GROUP SELECTION-SUB-SECTOR

GROUP13##

Sample 3:

Selection of an entire sector can be accomplished by using the following address:

Quadrant: 1

Sector: 3 of Quadrant 1

Radial: # All radial 1 - 3Station: # All stations defined by above

In selecting a sector, the first two digits of the address are set for the sector address, forexample 1 - 3 (Quadrant 1 - Sector 3). The third and fourth digits are substituted with a #(Wild Card). Therefore, the address to select all stations in sector 1-3 is 1 - 3 - # - #. Thisselection is represented below.

Fig. 7:Group Selection -Sub Sector

Page 15

1 2 3 4 5

GROUP SELECTION-QUADRANT

GROUP###

Sample 4:

The selection of a complete quadrant can be achieved by using the following address:

Quadrant: 1

Sector: # All sectors of Quadrant 1

Radial: # All radials in all sectors of Quadrant 1Station: # All stations defined by above

When selecting a quadrant, the first digit designates the Quadrant (1). the second, third andfourth digits are replaced with Wild Cards (#,#,#). Therefore, the address for selecting allstations in quadrant 1 is 1 - # - # - # as illustrated below.

Fig. 8:Group Selection -Quadrant

Page 16

1 2 3 4 5

GROUP SELECTION-“ALL-CALL”

GROUP ####

Sample 5:

All stations in a system may be accessed by using the Wild Card (#) for all address numbers.The address would be # - # - # - #.

Quadrant: # All Quadrants

Sector: # All sectors of all QuadrantRadial: # All radials of all sectors of all Quadrants

Station: # All stations defined by above

This “All Call” is illustrated as shown.

Fig. 9:Group Selection -All-Call

Page 17

Governmental: County, City & Station

For this next type of address structure, assume that the siren system in question is usedprimarily for tornado warnings throughout a major population center. This centerencompasses three counties with each county having no more than ten cities. Two citiescontain more than 50 high-power voice and siren stations.

The following represents a Governmental System 4-digit address configuration, allowingactivation by “All Call”, county group activations, city group activations and individualstation activations:

X X X X: : : . . . . . . . . . . . : . . . . . . . . . . . Individual Siren Station (00 - 99): :: : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . City (0 - 9)*:: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . County (0 - 9)

*One digit could also be reserved for unincorporated areas.

An address of 2 - 5 - 4 - 5 would indicate the following individual station:

Siren Station 45, in City 5, in County 2.

The WIld Card (#) permits the use of several different types of group activations. Threesamples follow:

Sample 1: County Activation (1 - # - # - #)All Siren Stations in all Cities in County 1 will be activated by this transmission.

Sample 2: City Activation (1 - 5 - # - #)All Siren Stations in City 5 of County 1 will be activated by this transmission.

Sample 3: System All Call (# - # - # - #)All Siren Stations in all Cities in all Counties will be activated by this transmission.

Page 18

Section IV: Troubleshooting

Audio LossIf after activating the siren there is no audio output, perform the following procedure stepby step. This procedure will require a digital multimeter.

1. Locate the Audio Presence LED on the controller board (see “Fig. 11: System LEDDiagnostic Indicators” on page 29). When audio is present on the board, this LEDwill be on.

2. Activate the WAIL siren tone from the control panel on the siren cabinet. Confirmthat the Audio Presence LED is on. If this LED is not on or if it turns off quickly,measure the battery voltage. The siren will not activate if battery voltage drops below19 VDC. Be sure to measure the battery voltage at the same time you activate thesiren. The batteries may show a good float voltage while they are not under load, butupon activation, the battery voltage may drop below 19 VDC if their capacity is low.Note that when the siren shuts down and the load is removed from the batteries, thevoltage may rapidly return to 25 VDC or more. If this condition is occurring, thebatteries will need to be replaced. If the voltages are in the normal range, proceed tostep 3.

3. Locate connector J2 on the control board. With your multimeter set to AC volts,measure across pins 6 and 7 (White with Orange stripe and White with Brownstripe). With the siren tone running, 5 VAC should be present. If no voltage is present,the controller board is probably at fault.NOTE: Confirm that the audio presence LED is on while performing thesemeasurements. It indicates that the siren controller is still activated. If the specifiedvoltages are present, proceed to step 4.

4. With the siren tone still active, measure across pin 1 (Blue wire) and pin 2 (Black w/White trace) on each of the siren amplifiers. 5 VAC should be present at eachamplifier. If so, proceed to step 5. If no voltage is measured, this is indicitive of awiring problem between the controller board and the siren amplifiers. Check thewiring between these components

5. Remove the Red siren driver lead from each siren amplifier. Press “Cancel” on thecontrol panel and then press “Wail”. Measure across the output of each amplifier(White Weco connector) with the siren driver disconnected. 70 VAC should bemeasured. If this voltage level is measured, proceed to step 6. If this voltage level isnot found and 5 VAC was measured at the input, proceed to step 7.

6. Set your meter to measure resistance at its lowest scale. Measure across each of thespeaker drivers, making sure that at least one wire of each driver is removed fromthe power amplifier (or else the transformer in the amp is being measured as well).Each driver should have a DC resistance of approximately 3 Ohms +/- .3 Ohms. If aresistance value outside of this range is found, contact factory.

Page 19

7. Set your meter to measure DC Volts. Connect the negative lead of your meter toground (one of the solid black wires in the multi-position connector on the amplifieris a good ground source). With a siren tone activated, measure the following wires forthe following voltages (approximately):

Grey 6 VDCBrown 5 VDCSolid White (all) 24 VDC

AC Battery ChargerThe AC-powered battery charger has two charging modes: Equalization Mode and FloatCharge Mode. The charger is in equalization mode when AC power is first applied; thecharger will stay in equalization mode until the battery voltage reaches approximately30VDC. Once the battery voltage reaches that point, the charger will switch to float voltagemode. In that mode it will charge the batteries to the appropriate voltage relative to thetemperature of the batteries (25 to 29VDC).

The AC battery charger contains three circuit boards. The filter board contains a single,green LED, while two charging boards each contain a pair of LED’s, one green and oneyellow. This pair of LED’s provides diagnostic information for the battery charger. Thefollowing chart defines their various diagnostic states.

Solar RegulatorThe following procedure can be performed to confirm proper operation of the solarregulator:

1. Disconnect the solar panel from the charger. With a DC voltmeter, measure thevoltage across the wires coming from the solar panel. The voltage should be greaterthan 32 VDC (NOTE: The solar panel must be in direct sunlight).

2. Reconnect the solar panel to the charger. Monitor the battery voltage with thecabinet voltmeter. The float voltage will vary between 25 to 30 VDC, depending onbattery temperature. When the solar regulator is charging, the DC LED on thecircuit board will be on. During normal operation the charger will cycle on and off.

Not Working

No AC voltage present

Green LED

Normal Condition

Not Applicable

Yellow LED

OFF

OFF

ON

ON

Charger Operating Properly

AC voltage is present

Equalization voltage mode

Not Applicable

Charging Board

Filter Board

Page 20

Pin Position 1

Pin Position 2

Pin Position 3

Pin Position 4

Pin Position 5

Pin Position 6

RED - Battery Voltage to Ground (BLK wire in BC-1)Note: Voltage present only when siren ispowered up.; this is sourced from the sirenmotherboard

Charger output wires (25 to 31 VDC)

GREY - 19VDC from GREY to Ground(BLK wire in BC-1)

ORANGE - VDC from ORANGE to Ground(BLK wire in BC-1)

Not Used

WHITE - Charger output wires (25 to 31 VDC)

BLACK -

5

REAR VIEW OF PIN HOUSING

GREY RED14

25

36

POS. 1 (REF)

ORANGE WHITE

BLACK

The float voltage will vary with battery temperature. The following is a brief description ofthe normal charging cycle:

If the float voltage for the current temperature of the batteries is 26 VDC, the regulator willturn on at 26 VDC (LED will come on) and it will charge the batteries to 28 VDC. Once thebattery voltage reaches 28 VDC, the regulator will turn off (LED will go off), and thebattery voltage will be allowed to drop to 26 VDC. The cycle would then repeat itself. If thefloat voltage was 27 VDC, it would cycle from 27 VDC to 29 VDC.

When AC power is applied to the battery charger, the following voltages should bemeasured on the wires coming off the charger:

Note: Refer to “Fig. 1a: Station Wiring Diagram (designations)” page 3.

Fig. 10:Solar Regulator Connector Pin-outs

Page 21

Digital Voice1. Remove all amplifier fuses.

2. Install an 8 ohm speaker at amplifier audio input connector pins 1 and 2 (Blue andBlack w/White wires) in the 16 position connector.

3. Select a siren tone by pressing one of the controls on the front panel.

4. If the tone can be heard through the speaker, press the DVM-Test control to play thepredesignated message.

Partial or Full Diagnostic FailureThis procedure is to be used if the Partial or Full diagnostic LED (located on the controllerboard) indicates that a problem has been detected. A Partial indication means that at leastone speaker and/or amplifier is operational. A Full indication means that all speakers andamplifiers are operational. NOTE: In order for a good Full indicator to be valid, a goodPartial indicator must also be present).

1. Connect the SDPTS to the siren station via the com port on the front of the sirencabinet control panel.

2. Display the “Status” screen on the SDPTS.

3. Press the SI TEST® control on the front control panel.

4. Each amplifier contains a red LED that is visible on the front of the control panel.Note if all the LED’s are on. Tap the “Update Status” button on the SDPTS and notewhich amp is displaying an error.

5. Open the front panel and swap the speaker driver wires from the amplifier thatindicated a failure, with an amplifier with a lit LED. For example: if the LED foramplifier 1 is the only LED not on, install amplifier 1 speaker wires onto amplifier 2and install amplifier 2 speaker wires onto amplifier 1. This will diagnose if it is thespeaker or the amplifier that has failed. You may also measure the DC resistance ofthe speaker driver with your ohm meter. Be sure that the speaker driver wires aredisconnected from the amp prior to measuring. A good driver will read 3 ohms +/- .3ohms.

Page 22

Section V: MaintenanceAlthough The WPS-2900 is of a dependable, solid-state design, periodic activation, fieldinspection and preventive maintenance is recommended to insure the maximumperformance of each station.

Frequency of Testing and ActivationA system of twice-monthly activation and confirmation, combined with a quarterly serviceand preventive maintenance is recommended to help insure the successful performance of astation. Increasing the frequency of testing will support and improve a station’s test record.

Stations located in environmentally adverse locations will require inspection and preventivemaintenance at more frequent intervals than just discussed.

IMPORTANT! STATIONS SHOULD ALWAYS BE INSPECTED IMMEDIATELYFOLLOWING SEVERE STORMS.

If a station is activated by remote control (landline or radio), the twice-monthly activationshould be performed using the remote control link.

The twice-monthly activation of a station can be confirmed by several different methods,depending upon the options selected with each Whelen System.

Local Site Confirmation

For a basic station activated at the cabinet, or by landline or radio, have an observerconfirm that the station activated audibly. The observer should report successful as well asfailed station tests. Station Performance Logs should be maintained. It is important tounderstand that audible confirmation alone is not assurance that the station is operating at100% power. This requires inspecting the station in greater detail.

Stations may be optionally equipped with counters that advance upon radio or tonegenerator activation. These counters do not confirm total operation or the final expectedoutput of an outdoor warning device.

If a station is equipped with the “Status Display” option, full power station activation can bevisually confirmed from outside the siren cabinet. This diagnostic display, located on theright side of the cabinet, will indicate the following:

(from left to right)Red indicates the presence of AC power (if equipped with an AC Battery Charger)Yellow indicates the presence of DC power at minimum operating level (at least 19VDC)Red indicates partial amplifier/driver functionGreen indicates full amplifier/driver functionRed indicates rotor operation (WPS-4000 systems only)

Page 23

This diagnostic function is enabled by either a full power siren tone activation or byperforming a SI TEST®.

The same information is available on the control board LED numbers 4 - 8. The “Status”option is not required for the on-board LED’s to function.

Following activation and observation, the results should be noted in the performance log.Any indication of incomplete operation presented by the LED indicators should promptIMMEDIATE service attention.

The system retains diagnostic information until cleared by a specific command.

The diagnostic information stored at the station, if not cleared, will update itselfautomatically with subsequent SI TEST® or siren tone activations.

Remote Monitoring and Confirmation

Stations equipped with the optional Whelen COMM/STAT™ Command and StatusMonitoring control, allow remote monitoring of status as well as confirmation of systemactivation. COMM/STAT™ returns the results of a remote station activation (both SITEST® and siren warning mode) in a DTMF encoded format via radio link.

Remote monitoring by RF link eliminates the necessity of physically visiting a station toconfirm an activation.

Following the activation of a station, a “Status Request” may be sent to that station byDTMF encoded radio command. Diagnostic information is then presented to the statusencoder at the station, converted into DTMF code and transmitted back to the controlcenter, where one of several COMM/STAT™ base station products will convert the DTMFcode into meaningful information.

Quarterly MaintenanceDeveloping a quarterly inspection and preventive maintenance program for an outdoorwarning station requires a thorough understanding of all the elements and expectations ofthe system. The following section provides an overview and basic guideline for quarterlystation inspection and preventive maintenance program for the sample station.

Page 24

Visual Siren Station Physical Inspection• Observe the speaker cluster, siren cabinet and AC Service for any signs of damage or

loose mounting hardware (Some shrinkage of a newly treated utility pole may occur in the first several years following installation, requiring the tightening of mounting hardware.

• Check all conduit for watertight connection and entrance into the siren cabinet.

• Inspect the AC Service for damage, blown fuses, degraded (corroded) power connections and integrity of the lightning arrestor.

• Inspect the grounding system for AC Service, Siren Cabinet and pole top equipment. Verify connections and acceptability of earth ground.

• Observe the pole for any shifting and/or leaning. Poles that are not plumb will not properly direct alerting sounds.

• Examine entire station for any signs of vandalism or forced entry.

Siren Cabinet and Components• Inspect AC Outlet, fuse and surge suppression equipment. Examine system for

infiltration of foreign material(s), rodents, insects or other pests.

• Inspect and, if necessary, clean all drain holes and vent screens.

• Inspect battery terminal connections and clean if necessary. Re-apply silicone coating to battery terminals if necessary. Observe battery voltage with siren in inactive state (AC power must be on to station, otherwise station must be powered up to observe meter).

• Examine all wiring harnesses for chafing. Verify wiring terminations for tightness and wiring connections for proper electrical connections. Replace and correct any corroded or marginal connections. Inspect antenna for proper connection.

Speaker Assembly and Pole Top EquipmentNOTE: Any examination of Pole Top equipment should be performed with the station audibly

disabled.

• Inspect speaker for blockage by rodents, pests, insects or other foreign material. Clean if necessary. Inspect any wiring cables or harnesses for chafing. Inspect the siren driver compartment for infiltration of foreign materials, rodents or pests. Clean if necessary. Confirm that the driver compartment will allow for water or moisture drainage. Inspect speaker wiring connections for any sign of corrosion.

Page 25

• Verify tightness of all mounting hardware.

• Check all wiring terminations and connections.

Station Performance TestingNOTE: Depending on local conditions and station options selected, the station may be tested

on or off line. Off line testing of the station involves disconnecting the speaker driversfrom the siren amplifiers, so as not to disturb the public when verifying tone generatoroperation. A complete test must, however, include the testing of the siren amplifieroperation. This can be accomplished inaudibly using the SI TEST® command.

A basic routine, verifying the performance and operation of the sample station previouslydescribed, would be as follows:

1. Local and Remote Activation - Activation of each remote station function by local control and remote control. Withamplifiers on and off line as needed. An examination of each activation function willalso facilitate a verification of related and subsequent system module activations andelectrical connections that would be caused by an activation command. Also confirmfunction time outs (ex.: does the Alert signal time out at three minutes as per userspecification?).

2. Response to Station Address and All Call address programming - Control Center reception and activation on SI TEST® or non-tone activation, forindividual station address and All Call address selection.

3. Public Address - With the station on line, activation of PA for both local and remote control, verifyingPA Audio path and proper set up level of volume.

4. Siren Amplifiers - Inspect for complete operation with speaker drivers (observe LED’s).

5. SI TEST® Station Analysis - Observe and confirm diagnostic status of:ACDCPartial Amplifier & Speaker Driver Operation (disable one amplifier to confirm thistest).Full Amplifier & Speaker Driver OperationNOTE: Verify AC drop out during SI TEST® mode.

6. Battery Charger Operation - Observe for proper charging operation.Verify AC drop out in PA or SI TEST® mode.

Page 26

7. Batteries - Verify voltage stability under load.Perform a load test.

8. Status Encoder - Perform a diagnostic SI TEST® of the station.Compare status information with observations made locally at the station.Disable one speaker and verify that the “Full” LED indicator is off.Disable AC and verify that the “AC” LED indicator is off.Compare battery voltage return status with observed and measured battery voltage.

9. Transmitter - Check status encoder DTMF tone level modulation with transmitter.

Check transmitter set up.Verify power output and SWR.

NOTE:On concluding any examination of a station where connectors have been opened andclosed , a final radio test by either SI TEST® or full power should be performed and the resultsobserved for a complete successful test. The PA audio path should also be audibly verified bysending PA and broadcast a voice message.

The following is a sample form that may be used for quarterly inspection and maintenance.

2.5 kHz deviationWithout CTCSS

With CTCSS 3.1 kHz deviation

Wide Band

1.5 kHz deviationWithout CTCSS

With CTCSS 1.8 deviationkHz

Narrow Band

Page 27

MAINTENANCE CHECK LIST

Station #: Siren Address:

Installation Date: / / Inspection Date:

Inspector:

PHYSICAL INSPECTION:OK NOT OK COMMENT

Mounting Hardware _____ _____ _____________________________Speaker Assembly _____ _____ _____________________________AC Service _____ _____ _____________________________Proper Grounding _____ _____ _____________________________Solar Panels* _____ _____ _____________________________Antenna* _____ _____ _____________________________Conduit Connections _____ _____ _____________________________Siren Case Assembly _____ _____ _____________________________Batteries _____ _____ _____________________________Components Secure _____ _____ _____________________________Harnesses _____ _____ _____________________________

LOCAL OPERATIONAL TESTING:

Battery Voltage (Stand-by) _____ _____ _____________________________Battery Voltage (Under Load) _____ _____ _____________________________Manual Test:

Clear _____ _____ _____________________________Wail _____ _____ _____________________________Attack _____ _____ _____________________________Alert _____ _____ _____________________________Airhorn _____ _____ _____________________________Hi/Low _____ _____ _____________________________Whoop _____ _____ _____________________________Clockwise _____ _____ _____________________________Counter-Clockwise _____ _____ _____________________________SI TEST® _____ _____ _____________________________AC LED _____ _____ _____________________________DC LED _____ _____ _____________________________Partial LED _____ _____ _____________________________Full LED _____ _____ _____________________________Rotor LED _____ _____ _____________________________Timer Set LED _____ _____ _____________________________Audio Present LED _____ _____ _____________________________Microphone _____ _____ _____________________________Mic Volume _____ _____ _____________________________

*Optional

Page 28

MAINTENANCE CHECK LIST(continued)

Radio*:OK NOT OK COMMENT

Squelch Control _____ _____ _____________________________Sensitivity _____ _____ _____________________________Antenna Tuned* _____ _____ _____________________________Transmit LED _____ _____ _____________________________

Remote Activation:Clear _____ _____ _____________________________Wail _____ _____ _____________________________Attack _____ _____ _____________________________Alert _____ _____ _____________________________Public Address _____ _____ _____________________________Airhorn _____ _____ _____________________________Hi/Low _____ _____ _____________________________Whoop _____ _____ _____________________________Wail / 5 Sec. _____ _____ _____________________________All Call _____ _____ _____________________________Speaker LEDs:

1 _____ _____ _____________________________2 _____ _____ _____________________________3 _____ _____ _____________________________4 _____ _____ _____________________________5 _____ _____ _____________________________6 _____ _____ _____________________________7 _____ _____ _____________________________8 _____ _____ _____________________________9 _____ _____ _____________________________10 _____ _____ _____________________________

Status:AC _____ _____ _____________________________DC _____ _____ _____________________________Partial _____ _____ _____________________________Full _____ _____ _____________________________

Status Request _____ _____ _____________________________Intrusion* _____ _____ _____________________________

*Optional

Page 29

10

J3J4

J6

STROBE

REMOTE STATUSLIGHTS

J2

J1

J20

RADIOP

WR

AM

PS

1-5

BA

TT

ER

IES

PA

GIN

GIN

TE

RFA

CE

PW

RA

MP

S6-10

RO

TO

R

CH

AR

GE

R

SPAREAUXCSINTRUSION

J7J5

1

J8 J21

1

J11

1J15

P1

9 POS. "D"

J9

J12

J14

J16

MIC. JACK

RJ45 JACK

REMOTE AUDIO

NOTE: In some instances, optionalcircuit boards may be located directlyabove these LED’s.

105

9

8

3

7

1

2

6

Fault (RED) - Normally off. When aproblem has been detected, this LEDwill be on.

DC - Normally on. If no DC voltage wasdetected during a siren tone or ,this LED will be off.

SI TEST®

Active - This LED normally flashes at arate of once every half seconds. Whena problem has been detected, this LEDwill stop flashing or be off. Also indicatesreceipt of DTMF data by flashing at afaster rate for about 1 second.

4 AC - Normally on. If no DC voltage wasdetected during a siren tone or SI TEST®,this LED will be off.

Rotator - This LED will light during sirenactivation if the rotor oscillates properly.

Squelch - Normally off. This LED will lightwhen the station is receiving a radiobroadcast. If equipped with the optionalreceive tone/squelch tone, the LED willonly light when the receive frequencyand sub-audible tone squelch frequencytone is detected.

Full - Normally on. If a siren amplifier doesnot operate properly during a tone activationor SI TEST®, this LED will be off.

Audio Presence (RED) - Normally off. ThisLED will light when an audio signal ispresent on the board.

PTT - Normally off. This LED will light whenthe station transmitter is active.

Partial - Normally on. If all sirenamplifiers do not operate properly duringa , this LED willbe off. If at least one amplifier operatesproperly, it will remain on.

tone activation or SI TEST®

1

2

45678

9

3

Local PAAdjust

Front PanelSwitch Membrane

Remote AudioAdjust

(FOR USE ONLYWITH MOSCAD)

(FOR USE ONLYWITH MOSCAD)(FOR USE ONLY

WITH MOSCAD)

Transmit AudioAdjust

DONOT

ADJUST

Fig. 11: System LED Diagnostic Indicators

Page 30

J3

J4

J6

STROBE

REMOTE STATUSLIGHTS

J2

J10

J1

J20

RADIO

BATTERIES(see note)

PAGINGINTERFACE

PWR AMPS6-10

PWR AMPS1-5

ROTOR

DIGITALVOICE

CHARGER(see note)

SPAREAUXCSINTRUSION

J7

J5

1

1

1 1

1

11

11

1

1

J8 J21

1

J11

1J15

P1

9 POS. "D"

J9

J12

J14

J16

1

MIC. JACK

RJ45 JACK

REMOTE AUDIO

1W

HT

18

BL

K

*=cable

17

WH

T/B

LK

16

WH

T/B

RN

15

WH

T/R

ED

14

OR

G

13

GR

Y

12

WH

T/G

RN

11

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10

BLU

9Y

EL

8B

RN

7G

RN

6W

HT

/BLU

5W

HT

4S

hie

ld*

3R

ED

2R

ED

*

1B

LK

*

1R

ED

1R

ED

2B

LK

3O

RG

4G

RN

1 ORG

1 RED

1 ORG

2 YEL

3 GRN

4 BLU

5 VIO

6 WHT/BRN

7 WHT/ORG

8 WHT/BLK

9 WHT/YEL

10 WHT/GRN

11 WHT/BLU

1 ORG

2 YEL

3 GRN

4 BLU

5 VIO

6 WHT/BRN

1O

RG

2Y

EL

3G

RN

4B

LU

5V

IO

6W

HT

/BR

N7 WHT/ORG

8 WHT/BLK

9 WHT/YEL

1B

RN

2O

RG

3V

IO

4Y

EL

5G

RN

6W

HT

/RE

D

7B

LK

8B

LU

9R

ED

10 WHT/GRN

1 WHT/GRN

2 WHT/GRN

3 WHT/GRN

4 WHT/GRN

5 WHT/GRN

6 WHT/GRN

7 WHT/GRN

11 WHT/BLU

2 BRN

3 ORG

4 YEL

5 GRN

6 BLU

7 GRY

8 WHT

9 WHT/BLK

10 WHT/RED

11 WHT/ORG

12 BLK

2 RED

1 BLK/WHT

3 RED/WHT

3 BLK

4 GRY

2G

RN

3B

RN

4Y

EL

5B

LU

6V

IO

1W

HT

NOTE: Some older systemsuse connectors that will notproperly interface with thefollowing connectors onreplacement control boards:

J1 (Batteries)

J5 (Charger)

If the existing connector doesnot connect to the new boardso that the wires are orientedas shown, contact Whelenprior to connecting any wiresto the board.

●

●

Fig. 12: Control Board Wire Colors