Specifications

 Chapter1—ProductDescriptionandSpecifications
9 Multi‐TechSystems,Inc.MultiModemiCellUserGuide
FrontPanel
ThefrontpanelincludestwogroupsofLEDs:
● ThefirstLEDgroupdisplaysmodemactivity,suchastransmitandreceivedata,carrierdetection,linkstatus,
terminalreadyindicatingconnectiontothepc,andthepowerindicator.
● ThethreeSignalLEDsdisplaythesignalstrengthlevelofthewirelessconnection.
Forsomemodels,aSIMdoorisincludedontherightsideofthemodem,providingaccesstotheSIMcardholder.
MTCMR‐E1,‐G2,‐H5 MTCMR‐C1,‐EV2


LEDs
LEDIndicators
TD TransmitData:Litwhenmodemistransmittingdata.NotvalidwhileinUSBmode.
RD ReceiveData:Litwhenmodemisreceivingdata.NotvalidwhileinUSBmode.
CD CarrierDetect:Litwhendataconnectionhasbeenestablished.NotvalidwhileinUSBmode.
LS LinkStatusLEDisdependentonthemodel:
‐E1version*(WhenAT^SSYNC=1)‐G2and‐C1versions‐H5and‐EV2versions
Permanentlyoff.MEisinoneofthe
followingmodes:PowerDownmode,
AirplanemodeNon‐CyclicSleepmodewith
notemporarywake‐upeventinprogress.
600mson/600msoff
LimitedNetworkService:NoSIMcard
insertedornoPINentered,ornetwork
searchinprogressorongoinguser
authe
ntication,ornetworklogininprogress.
75mson/3secoff
Idlemode:Themobileisregisteredtothe
GSMnetwork(monitoringcontrolchannels
anduserinteractions).Nocallisinprogress.
75mson/75msoff/75mson/3secoff
OneormoreGPRScontextsactivated.
500mson/25msoff
Packetswitchedda
tatransferinprogress.
Permanentlyon
CSDcall
–Connectedtoremoteparty.
Continuous“on”state
indicatesthatthewireless
modemisnotregisteredonthe
network.
Flashingstates:
200mson/2secoff
Indicatesregistrationon
network.
200mson/600msoff
Indicatesitisregisteredona
networkandcommunicationis
inprogress.
Offstate.Mo
demisoff(not
ready)orindownloadmode.
Continuous“on”stateindicates
thatthemodemispoweredon,
andregisteredonthenetwork.
Slowflashingstate(5seconds)
indicatesthemodempowered
onandsearchingforregistration
onanetwork.
Fastflashingstate(0.3seconds)
indicatesthemodemis
transmittingorreceiving.
Offstate.Mo
demisoff(not
powered).
TR
TerminalReady:Commonlyreferredtoas“DataTerminalReady”,thisisareadinesssignalfromthePC.
PWR/
GPS
Power:IndicatespresenceofDCpowerwhenlit.
GPS:IfavalidGPSsignalhasbeenreceived,thePWR/GPSLEDwillblinkat1secondON,and0.5secondOFF.
IfGPSsignalisinvalid,thePWR/GPSLEDwillbeonsolid.
Signal
ALLOFF–Unitisoff,notregisteredonanetworkorhasanextremelyweaksignal(0<=RSSI<6).
1BarON–Veryweaksignal(7<=RSSI<14)
1and2BarsON–Weaksignal(15<=RSSI<23)
1,2,and3Bar
sON–Goodsignal(24<=RSSI<31)
*Tobeaccurate,theAT^SSYNCcommandmustbesetto1sothatfactorydefaultLEDtimingsareused. 