Network Router User Manual

PinPoint-E EV-DO
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Wiring the PinPoint-E for DTR Event
Tr i g g e r
Followingthedirectionsinforwiringaswitchtotheserial
porttotheDTRpinoftheserialport,commonlyacontactor
voltagecontrolledbythekeyswitch,youcanconfigurethe
PinPoint‐Etochangethepowermodeinresponsetothe
ignitionoranyotherspecificevent.
Caution: If either DTR or RTS have been configured to be used as
digital inputs, then low power mode cannot be configured to respond
to DTR.
Power Effect on Modem State
Oncethetransitionfrompoweredontostandby,low‐power
modestarts,themodemwillchangestatetoATmode.This
resultsinthecurrentmodebeinggracefullyterminated.For
thebriefperiodwhenthemodemispreparingforlow‐power
mode,themodemwillremaininATmode.Atthat
time,it
wonʹtauto‐answer,ATDwillfail,etc.Oncelow‐powermodeis
entered,themodemwillthendiscardanydatareceivedonthe
hostport.
Whenthemodemiswokenfromlow‐powermode,thesame
behavioroccursasuponpoweron.ThemodemstartsinAT
mode,andthenafter5secondswillenterthedefaultstart‐up
modeasitisconfiguredforthemodem.