ADTRAN Total Access 372 - Enclosure Location Determination

Installation
61287722G1-5B 15
CAUTION
!
•Thisequipmentmustbeconnectedtoaknown,reliableearthgroundatall
timesduringinstallationandservice.RefertotheNationalElectricalCode
(NEC)andstate/localcodesfordetailsongrounding requirements.A
minimum12AWGcoppergroundconductorshallbeusedtoconnectthe
equipmenttoearthground.
•Thisequipmentmustbeservi
c
edbyauthorizedservicepersonnelonly.All
repairproceduresaredetailedtoallow sub‐assemblylevelrepairsONLY.
Authorizedservicepersonnelshouldnotattemptcomponentlevelrepairs
orcircuitmo dification stothe printedcircuitboard.Im pro perrepairscan
createasafetyha zard.
Determining SBU ONT Enclosure Location
GeneralSBUONTmountingrequirementsforbothindoorandoutdoorareasfollows:
• Maintainproperairflowinandaroundtheunitatitsfinalmountedlocation.Donot
installsidingandotherbuildingmaterialaroundtheoutsideoftheenclosuretoprevent
excessiveheatbuildupandultimateproductfailure.
• Mounttheunitwithi
nproximityoftheACel
ectricalpowermeterwheretheMulti‐
GroundNeutral(MGN)iseasilyaccessible.
• Mounttheunitawayfromdownspouts,permanentwatersprinklers,orotherwater
sources.
• ConsiderproperclearancesforopeningoftheswingingSBUONTcovers.
Theheightofthemountingcanvary,however,itisrecommend
ed
thattheenclosurebe
installedataverticaldistanceofapproximatelyfourfeet(1.2meters)fromgrade.Thisheight
lendstoeaseofinstallation/repair.Naturally,thismounting isdependentontheheightofthe
customerprovidedinsidewireand/orlengthorlocationoftheburiedfiberdrop,whichis
assu
medtoentertheSB
UONTfromthegroundupwards.
Theenclosureismountedvertically.Ifatallpossible,theenclosureshouldbesu rface
mountedonaflatsurface.
CAUTION
!
EnsuretheSBUONTisgroundedbeforemakinganyotherconnections.