ADTRAN Total Access 372 - Components and Interfaces; Mechanical Components and Outer Enclosure

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
6 61287722G1-5B
Components and Interfaces
TheSBUONTconsistsofthefollowingcomponentsandinterfaces:
• MechanicalComponents
• ElectronicsModule
• CircuitBoard
Mechanical Components
TheSBUONTisdesignedforoutdoororindoorapplications.TheAdtranmodel774or775
outdoorNetworkInterfaceDevice(NID)housingisintendedasademarcationpointbetween
theTelcoandasubscriberpremisesforoutdoorapplication.Forindoorapplication,neitherof
thesehousingsareused.ThedemarcationpointistheElec
tronicsModu
leitself.
Outer Enclosure
TheOuterEnclosureprovidesbothenvironmentalcontrol(weatherproofing)andaccess
control.
Outer Enclosure Security Locking Feature
TheenclosureisintendedforuseontheoutsideofabuildingandisdesignedtomeetUS
environmentalrequirements.Theunitisweatherhardenedandisabletowithstand70m.p.h.
winddrivenrain,hightemperature,coldtemperature,droptestsandallotherGR‐49,
GR‐950,andGR‐487re
quirements.Thedimensions
areapproximately15”highx12”widex
4”deep(381mmx305mmx102mm).TheexternaldoorprovidesaccesstotheRJ‐11test
connectors,EthernetRJ‐45connectors.andDS1connectorsTheenclosuredoorisheldinthe
closedpositionbytwo“snap”doorretainers.Toop
enthedoor
thesetwosnapsmustbedisen‐
gagedatthesametime.
TheOuterEnclosureDoorhasadoublesecuritylockingfeatureprovidedbythethirdmolded
part.Thisprovidesthefollowingcapabilities:
•Subscriberaccessdoorisclosedusingaflatheadscrew
•TelcopersonnelcancontrolaccessviathePi
n‐in‐Hexscrew