Specifications

DiscreteI/O
Page|47
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d) ReceiveTCPPacket–Whenchosen,theoutputcanbecontrolledviathereceptionofaTCPpacketinthe
formatdescribedbelow.ValidpacketsareacknowledgedbyareturnTCPpacketwithtextformattedas
describedintheDiscreteInputConfigurationSection.
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e) ReceiveSMS
–The“ReceiveSMS”optionisonlyavailableon882‐GPRSand882‐EDGEmodems.Whenchosen,
theoutputcanbecontrolledviathereceptionofshort(text)messagescontainingthecharactersspecifiedin
thefields“SMSTextFor(andNot)Ground”.Beawarethatyourcarrier’stextmessagerates
mayapplyfor
eachmessagereceivedbythemodem.ThecarrierdeliversSMStothemodemevenwhenthischoiceisnot
active.Thiscancauseitsmailboxtofillupwithunreadmessages.Whenthischoiceisenabled,themodem
periodicallydeletesSMSmessagestomakeroomfornewones.
Asaresult,whenenablingReceiveSMS,the
mailboxmaybefull.Withinafewminutesanyexistingmessageswillbeprocessedanddeleted.
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f) SetToGround–Thiswillsettheoutputto“Ground”immediately.Thisdisablesautomatedcontrolofthe
output(settingsa‐e).
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g) Set
ToNotGround–Thiswillsettheoutputto“NotGround”immediately.Thisdisablesautomatedcontrolof
theoutput(settingsa‐e).
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 IncomingTCPIPAddress:
Thisfieldisenabledonlyif“ReceiveTCPPacket”hasbeenselectedfor“OutputFunction”.Ifdesired,entera
specificIPaddress
(withsubnetmaskifdesired)fromwhichallvalidrequestsmustoriginate.Leavethesubnet
maskfieldblanktomatchonlytheIPaddressspecified.IftheIPaddressvaries,orthereisnodesiretovalidatethe
source,enter0.0.0.0,whichwillcausethemodemtoaccepttheconnectionfrom
anyIPaddress.
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 IncomingPort:
Thisfieldisenabledonlyif“ReceiveTCPPacket”hasbeenselectedfor“OutputFunction”;Enterthedestination
portnumberspecifiedbytheIPAddressthatwillbesendingtheTCPdata.Thisfieldismandatoryforusewith
“ReceiveTCPPacket”.
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
IDVerification:
Thisfieldisenabledonlyif“ReceiveTCPPacket”hasbeenselectedfor“OutputFunction”;WhenEnabled,a
receivedTCPpacketwillbescannedtoensureitcontainstheESN(orIMEI)ofthemodembeforetherequested
outputsettingisapplied.Thischeckisnotperformedifthe
settingisdisabled.
SMSoptionsareonlyavailableon882‐GPRSand882‐EDGEmodems.
 SMSTextForGround:
Thisfieldisenabledonlyif“ReceiveSMS”hasbeenchosenfor“OutputFunction”.Enterupto12charactersthat
mustappearinanincomingSMSmessagetosetthe
OutputDiscreteto“Ground”.Thecharactersspecifiedmust
appearinthatexactordersomewherewithinthereceivedmessagetotriggertheoutputdiscrete.
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 SMSTextforNotGround:
Thisfieldisenabledonlyif“ReceiveSMS”hasbeenchosenfor“OutputFunction”.Enterupto12charactersthat
must
appearinanincomingSMSmessagetosettheOutputDiscreteto“NotGround”.Thecharactersspecified
mustappearinthatexactordersomewherewithinthereceivedmessagetotriggertheoutputdiscrete.
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