
P.O. Box 1306
Newport Beach
California 92663
Phone: 714-751-0488
Fax: 714-957-1621
www.newmartelecom.com
9
TEST / TROUBLESHOOTING
RefertothestatusLEDindicatorlegendonpage5,whichprovidesdiagnosticsofwhatstagetheMDPiscurrently
operating.
1) Testing Battery Back-up Function:
With a load connected to MDP output remove input fuse and confirm load is powered without interruption from MDP
internalbattery:ThetwoGREENLED’s(“CHARGING”&“INPUTCONNECTED”)shouldextinguishandtheAMBER“Back-
up Power” LED will illuminate.
2) Start-up:
WhenconnectingorreconnectinginputpowertotheMDPitisnormalforthe“INPUTCONNECTED”LED&“BACK-UP
POWER”LEDtobothillimunatefor2-3seconds.
3) Charging LED:
a)ItisnormalfortheCHARGINGLEDtoextinguishwhenthethreestagechargergoesintosleepmode.(Sleepmode
reduces MDP input current draw when the internal battery is full charged.)
b) Iffusesblowrepeatedly,thisusuallyindicatesashortedcomponent.ContactNEWMARforfurthertroubleshooting
advice.Alwaysverifythatthereplacedfusesareofthecorrectrating.UsestandardATCfuses.Donouse
slow-blowfuses.
c)FlashingRedLED-internalchargingtemperatureexceeds50°C.
FACTORY CONTACT INFORMATION
Ifaproblempersistsafteryouhaveappliedtheabove-outlinedsolutions,orifyouhaveanyquestionsaboutthe
installationandproperoperationoftheMDP-25.0,pleasecontactNEWMAR’sTechnicalServicesManager:
Phone: 714-751-0488-Fromthehoursof7:00A.M.to4:30P.M.weekdays,P.S.T.
Fax:714-957-1621
Email: techservice@newmarpower.com
Wearehappytoconsultwithyoutoresolveanyproblemsorquestionsyoumayhave.Ifduringconsultation,it
appearstheMDP-25.0mustbereturnedtothefactoryforrepairwewillissueaReturnMaterialsAuthorizationatthattime.
SPECIFICATIONS:
INPUT:Stand-by:12VDC,12.2->15.5VDC,11.5minimuminputrequiredforstartup,
MaximumInputCurrent:28.5Amps(25Ampsmax.Load+3.5AmpsCharger)
Stand-byCurrent:<40mA(noloadonoutput,internalbatterycharged,3Stagechargerinsleepmode)
OUTPUT:12VDCFiltered,VoltageSpikeProtectedwithBack-UpBattery25ampsMax.
BACK-UP POWER: 12.0VDCNominal,from7AHinternalbattery:
5ampsfor60Minutes
10 amps for twenty Minutes
25ampsforsixMinutes
(Alltheaboveassumingfullychargedbattery@25°C)
BATTERY:SealedLeadAcid,Rechargeable7.0AH,5YearsTypicalLife-UserReplaceable
INTERNAL CHARGER: 2Amps,3Stage,TemperatureCompensated
FILTERING: Audio through 200 MHz
VOLTAGE SPIKE PROTECTION: TransientEnergyCapability;100Joules,4,000ampsMax
OPERATING TEMPERATURE: 0-50°C
SIZE/WEIGHT:5.75”Hx6.0”Wx8.5”D(14.6x15.24x51.59cm)/9.4lbs.(4.3kg)