Specifications

WITURATECHNOLOGYSDNBHD|WT‐1672A GSMPowerOutageAlarm UserManualV1.8 13
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ProductionSpecifications
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OperationVoltage 110‐240Vdc
OperatingCurrent Maximum500mA,typically55mA
RelayContacts 1xNormallyOpenandNormallyClosedContacts
 maximumswitchingcapacity20amps@230vacperrelay
GSMFrequencyMHz GSM850,GSM900,GSM1800,GSM1900
Humidity LessThan80%RH
OperatingTemperature ‐20cto55c
PhysicalSize 130x100x50mm
Weight 500Grams
Indicators Relay,Telco,Power
Protection IP65WeatherProofCasing
Approvals C.E,FCC,ETSI
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Troubleshooting
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1. RedpowerLEDnotalight
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Ensure that your DC power supply is connected
correctly,positive(+)toterminal220vandnegative(‐)
to terminal N. Verify 12 volts is present using a volt
meter
2. BluenetworkLEDflashingeveryonesecond
andnotevery3seconds
Ensure yourSIM cardhasbeenactivatedandthatthe
PIN request has been disabled. If the unit is in a low
signal strength area consider using an external GSM
antennaorchangingtoanothernetworkprovider
3. Iamnotreceivingconfirmationtestmessages
whenprogramtheadministratorsnumber
Ensureyourtelephonenumberis intheAdministrator
list and that sendingtextmessages toyour number is
enabled.
4. Iamnotreceivinganytextmessageswhen
initiallyprogrammingtheunit
Ensure the unit is connect ed to the GSM network by
observing the blue network LED; it should be flashing
once every 3 seconds (see 2 above). Ensure the SIM
cardhascredit
5. Theunithasbeenworkingforseveralmonths
andhasnowstoppedrespondingtocallsand
textcommands
MostbutnotallPAYSIMcardswillbede‐activatedby
thenetworkifnotusedtomakeanoutgoingvoicecall
orsend an SMS text messagewithinaspecific
period.
To prevent this simply send a txt command *0*PW#,
then*2*, it willreply by textmessage, dothisoncea
monthtokeeptheSIMcardactive