Atkinson Dynamics AD-27 Especificações descarregar pdf (Página 3)

INSTALLATION AND SERVICE INSTRUCTIONS FOR MODEL AD-28X-MV

SAFETY MESSAGE TO INSTALLERS, USERS AND MAINTENANCE PERSONNEL

It is important to follow all instructions shipped with this product. This device is to be installed by a

trained electrician who is thoroughly familiar with the National Electrical Code and will follow NEC

Guidelines as well as local codes. Marine installations shall be in accordance with Title 46, CFR,

Parts 110‑113.

The selection of the mounting location for the device, its controls and the routing of the wiring is to

be accomplished under the direction of the facilities engineer and the safety engineer. In addition,

listed below are some other important safety instructions and precautions you should follow:

• ThisisnotaListedemergencysafetydeviceandisnotintendedtobeusedassuch.

• Readandunderstandallinstructionsbeforeinstallingoroperatingthisequipment.

• Disconnectpowerbeforeconnectingordoinganymaintenanceonthisintercom.

• Alleffectivewarningspeakersproduceloudsoundswhichmaycauseincertainsituations,perma‑

nenthearingloss.Youshouldtakeappropriateprecautionssuchaswearinghearingprotection.

• Aftertestingiscomplete,provideacopyofthisinstructionsheettoalloperatingpersonnel.

• Establishaproceduretoroutinelychecktheintercominstallationforintegrityandproperopera‑

tion.AnymaintenancemustbeperformedbyatrainedelectricianinaccordancewithNECguide‑

lines and local codes.

Failure to follow all safety precautions and instructions may result in property damage, serious

injury, or death to you or others.

A. General Features.

TheAD-28X-MVintercomisaheavyduty,2-way,communicationsdevicedesignedforin‑

dustrialapplications.Nominaloperatingvoltagesinclude120/240VAC,50/60Hzand24VDC.

Voltagechangesforthe120/240VACareinternallyswitchselectableandtheAClineisfused

witha1/2amp250volttypeGMCfuse.Theunitalsoofferstransformerisolatedaudioinputs

andinternallyselectableMasterorSlavemodecongurations.Acallbuttonwithremotecall

dry contacts is also factory supplied in the unit.

TheAD-28X-MVhasaType4XenclosureandisaULListedTypeNM(non-monitored)

signalapplianceandMarinesignalapplianceforindoororoutdooruseandisCSACertied.

TheAD-28X-MVisadditionallyListedforClassI,GroupsA,B,CandD,Division2;Class

II,GroupsFandG,Division2;andClassIII.

WireallcircuitsconnectedtotheAD-28X-MVIntercomusingClassI,Division2wiring

methodsspeciedinArticle501-4(b)oftheNEC.

MASTER MODE:

TheintercomcanbeconguredasaMasterunit(Push-to-Talk)oraSlaveunit(Push-to-Listen)

bychangingtheMAS/SLAjumper(J2)ontheprintedcircuitboard(seeFigure6).Theintercom

comesfromthefactorysetintheMaster(MAS)mode.

IntheMastermodetheintercomactsasanamplier,constantlybroadcastingoveritsspeakerany

signalthatitreceivesonthesignallines.HoldingdowntheListen/Talkswitchchangestheunit

fromaspeakertoamicrophone(seeFigure1).Theintercomwillnowtransmitoverthesignal

linestoadditionalintercom(s)alsosetintheMastermode.Whentheswitchisreleaseditwill

defaultbacktotheListenorSpeakermode,allowingtheusertoreceiveanymessagestransmitted

backtoit.

SLAVE MODE:

Someapplicationsmayrequirethattheintercomconstantlytransmit(i.e.actasamicrophone)

asopposedtoconstantlyreceive(i.e.actasaspeaker).Toaccomplishthistheintercommustbe

conguredintheSlave(Push-to-Listen)mode.

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