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1、ASCIIProtocolLEGALINFORMATIONNOTICEOFDISCLAIMERPelco,makesnoclaims,expressedorimplied,regardingtheusefulnessofthisprotocol,it'simplementation,orit'scorrectness・Anyuseofthisprotocolisthesoleresponsibilityoftheagencyimplementingtheprotocol.Thecontentsofthisdocumentandthe
2、functionoftheprotocolaresubjecttochangewithoutnotice.PROPRIETARYNOTICEThecontentsofthisdocumentareconsideredtobethepropertyofPelco.UsersofthisprotocolagreetousetheprotocolonlyintheinterestsofPelco.Anyuseoftheprotocoltotheirdetrimentisexpresslyprohibited・Thosereceivingt
3、hisprotocolcannotredistributetheprotocolwithouttheexpressedwrittenconsentofPelco.QUESTIONSQuestionsregardingthisprotocol,it'simplementation,use,anddistributionshouldbeaddressedto:Pelco(209)292-1981Voice300WestPontiacWay(209)292-1018FAXClovis,California,USA93612-5699INT
4、RODUCTIONThisprotocolmanualdescribestheASCIIprotocolusedtocommunicatewithPelcoequipment.SomePelcoequipmentwillusethisprotocol"natively”(it'sprogrammedintotheequipment).Othersystemcomponentswilluseatranslatorinterface.TheASCIItranslatorisapieceofhardwarethatwillprovidef
5、orthetranslationfromthenativeprotocolofthedevicetotheASCIIprotocoldetailedbelow・Notalldeviceswillbeabletoaccommodateallofthefeaturesavailableinthisprotocol.Thisprotocolisdesignedtocoverthefeaturesetsofawidevarietyofequipment.Forinformationontheabilitiesofaparticularpie
6、ceofequipment,pleaserefertothatequipment'smanual.OVERVIEWTheprotocolusedthebasicASCIIcharactersettosmitanreceivecommandsthatcontrol:panandtiltmechanisms(bothfixedandvariablespeed),camerafunctions,auxiliaryrelays,andalarms.ThesecommandsarereadablebutarenotEnglish.Thephy
7、sicallayerofthisprotocolisvariableandtheuserisresponsibleformakingsurethatanappropriatestandard(RS-232,RS-422,RS-485,etc.)isused.Conversiondevicestointerfacetothesestandardsarereadilyavailable・PHYSICALLAYERTheASCIIprotocolcommunicatesinastandardasynchronous,byteoriente
8、dprotocolthatineludes:1startbit,8databits,1paritybit(evenparity),and1stopbit.Thecommunicationsratevarieswiththeapplic
