Specifications

 Chapter2–ActivationandInstallation
27 Multi‐TechSystems,Inc.MultiModemiCellUserGuide
ConnectingDirectDCPower(Optional)
ToconnecttheoptionaldirectDCpower:
1. Screw‐ontheDCpowercabletothepowerconnectoronthemodem.
2. AttachthetwowiresattheotherendoftheDCpowercabletoaDCfuse/termina l blockonthevehiclewhere
youaremountingtheMultiModem.
3. Connectredwiretothe"+"(positive)terminalandblackwiretothe"–"(negative)terminal.BesuretheGND
connectioniscorrect.
Warning:Thedevicehasover‐voltageprotection.Toensurecompleteprotection,youcanaddadditionalfiltering
totheDCinput.
Note: Forautomotiveapplication:accordingtothetypeofapplication,youcanusepermanent“+”orkey‐
switched“+”source.Connectthepowersupplytoitssource;forexample,inamobilesituation,toth
evehicle’s
DCfuse/terminalblock.
AttachingtheModemtoaFlatSurface
Beforeyoumountyourmodemtoapermanentsurface,verifysignalstrength.Formoreinformationreferto
UsingYourWirelessModem,VerifySignalStrengthinChapter3.
Note:NomatterwhichorientationyouusetomountyourMultiModem,ensurethattheantennais alwaysvertical
andpointingupwardasthefloororgroundmayimpedetheantenna’sperformance.
Youcanmountthemodemtoapanelusingscrewsspacedaccor ding tothemeasurementshown.
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