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Sierra Wireless MP595 Modem User Manual

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Configuring the MP Modem to Report GPS and I/O

Data

Rev 1.4 Draft Mar.08 61

Typicallyananaloginputdeviceshouldbeconnectedbetween

Ground(pin10)andtheinputport(Pin7,8,14,or15).

Figure 7-4: A sensor wired to Pin 7 (analog input) and Pin 10 (Ground).

Theanaloginputportsusea10‐bit(1024‐step)analog‐to‐

digitalconverteroverarangefrom0to3.45

VDC,yieldinga

digitalstepresolutionof0.0032

V.

Example: analog sensor connections

AnI/Ocableforananalogsensorrequiresawiretooneofthe

analoginputpins(suchas#7)andonewiretotheGroundpin

(#10).

I/O configuration using AT or 3G Watcher

commands

Onceasensor,gauge,button,orswitchisphysicallyconnected

totheMPmodem,theMPmodemmustbeconfiguredto

managetheinputfrom,oroutputto,thedevice.Thisconfigu

‐

rationcanbedoneusingeitherATcommandsorusing3G

Watcher.

ForalistofATcommands,pleaseseetheMP3GModemsAT

CommandReferencemanual(document#2130810).

Thereareseparatewindowsin3GWatcherforconfiguringthe

analoganddigitalports.

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