Manual

Software User Guide 172
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Transparent:AllowrawcommunicationbetweentheDi alportandtheTCPConnection.
Visa:EnablelocalVisaIengine.Thiswillprocessonetransaction,andissueanEOTafterthetransactionresponsehasbeen
senttothedialdevice.
Visa2:EnablelocalVisaIIengine.AfteratransactioniscompleteandENQwill
beissuedtoquerythenexttransactionin
sequence.IfthereisnoresponsetotheENQ,thenanEOTisissued.
Timer:TransparentModeistheinter‐characterdelay(inmilliseconds)usedontheserialsidetodeterminewhena
remotedeviceisfinishedtransmitting.Alowvaluemaygenerateafasterresponse,butcansendmanyTCPpack et s
and‘fragment’theserialdatapackets.Ahighervaluewillcollectalarger
amountofdataintoasingleTCPpacket,and
willgenerallykeeppacketboundariesmoreintact.Visamodeisunused.Therecommendedsettingforthisfieldis150
forTransactionsand10forsomeStreamingProtocols(ATMManagementProtocols).
DataMode:Thefollowingdatamodeissupported:
8N1:Datawillbetreatedasfull8bitsvalid.Iftheserialdeviceistransmitting7E1,then7E1formatteddatawillbetransmit‐
tedtotheTCPside.
7E1:Processdataasifin7E1format.Iftheserialdeviceistransmitting7E1,thenappropriateparitywillbestripped/addedso

thatcommunicationontheTCPsidewillbein8N1.
TherecommendedsettingforTransparentmode:AsneededforvariousserialdevicesandTCPhosts.
TherecommendedsettingforVisamode:Leavethissettingat8N1.Automatic7E1detectionisused.
SpoofENQ:TherecommendedsettingforthisfieldisNo.
TransparentMode:ThiswillenableanENQpackettobesenttotheserialdevicetoinitiateatransaction.Upto5ENQ’swill
besentwhilewaiting.
VisaMode:Unused.TheVisaenginewi llautomaticallyissueENQ’sasneeded,accordingtotheGwlnxconfigfile.
NoRxBeforeTx:DiscardingdatabeforetransmittinginsupportedMessageMode.Therecommendedsettingforthis
fieldisNo.
TransparentMode:Thiswilldiscardanydatareceivedfromtheserialside,priortotransmittingsomedatatotheremote
serialdevice.Thiscanbeusefultodiscardinitiallinenoiseremnantsfr ommodemconnectionsbeforeanENQisissued(or
otherstart‐datamessagetypesfromaTCPhost).
Visa
Mode:Unused.ThisisautomaticallyenabledintheVisaengine,asitaw aitsaSTX.
DisableAck:AcknowledgementbehaviorinsupportedMessageMode.TherecommendedsettingforthisfieldisNo.
TransparentMode:Unused.
VisaMode:Onceamessageisreceivedfromtheserialdevice(ATM/POS)andtheLRCisvalid,thiswilldisablesendingan
ACK.CertainATP/POSdeviceswillfailifsentanACK,andratherusetheresponsemessagefromtheTCPhostasanimplied
ACK.CertainATM/POS
devicesrequireanACKbeforereceivingtheresponsemessagefromtheTCPhost.
PassThroughAck:PassingAcknowledgementinsupportedMessageMode.Therecommendedsettingforthisfieldis
No,unlessusingaSmartConnectdeviceatthehostprocessingside.
TransparentMode:Unused.
VisaMode:WhenanACKisreceivedfromanATM/POSdevice,passthatuptothe hostprocessor.
EnterIPAddress1(Required):ForcoordinationwithSSLConnections,use127.0.0.1.WhenusingANSWERmode,this
isaClientPrimaryIPaddressthatGWLNXusestoconnecttotheHostserver.WhenusingDIALmode,thisfieldisnot
used.