ADTRAN Total Access 372 Product manual

installation guide
Total Access 372
Small Business Unit ONT
Installation and Maintenance Guide
Document Number: 61287722G1-5B
February 2011

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
ii 61287722G1-5B
Trademarks
Anybrandnamesandproductnamesincludedinthisdocumentaretrademarks,registered
trademarks,ortradenamesoftheirrespectiveholders.
To the Holder of this Document
Thecontentsofthisdocumentarecurrentasofthedateofpublication.ADTRAN®reserves
therighttochangethecontentswithoutpriornotice.
InnoeventwillADTRANbeliableforanyspecial,incidental,orconsequentialdamagesor
forcommerciallossesevenifADTRANhasbeenadvisedthereofasaresultofissueofthis
document.
About this Document
ThisdocumentprovidesinstructionsfortheinstallationandmaintenanceoftheSmall
BusinessUnitONT.Theintendedaudienceforthisinformationisthecraftpersonresponsible
fortheinstallationandmaintenanceoftheequipment.Theseinstructionsassumefamiliarity
withtheintendeduseoftheequipment,basicrequiredinstallationskills,andknowledgeof
localandacceptedsafetypractices.
Additionally,thisdocumentprovidesprovisioninginformationspecifictotheUserInterface
oftheSmallBusinessUnitONT.Theintendedaudienceforthisinformationissystem
managementpersonnelresponsiblefortheconfigurationofthesoftwareapplications.User
Interfaceprovisioningassumesfamiliaritywiththeintendeduseoftheequipment,concepts
peculiartothisproduct,andacomputeroperationsskillset.
RelatedinformationcanbeobtainedbyreferringtotheapplicableComponentandSystem
documentation.
901ExplorerBoulevard
P. O . Box140000
Huntsville,AL35814‐4000
UnitedStates
(256)963‐8000
©2011ADTRAN,Inc.
AllRightsReserved.
®

61287722G1-5B iii
Revision History
Conventions
Thefollowingtypographicalconventionsareusedinthisdocument:
Thisfontindicatesacross‐referencelink.
This fontindicatesscreenmenus,fields,andparameters.
THIS FONTindicateskeyboardkeys(ENTER,ESC,ALT).Keysthataretobepressedsimulta‐
neouslyareshownwithaplussign(ALT+XindicatesthattheALT keyandXkeyshouldbe
pressedatthesametime).
Thisfontindicatesreferencestootherdocumentationandisalsousedforemphasis.
Thisfontindicateson‐screenmessagesandprompts.
Thisfontindicatestexttobetypedexactlyasshown.
This fontindicatessilk‐screenlabelsorothersystemlabelitems.
Thisfontisusedforstrongemphasis.
Revision Date Description
A August2010 Initialrelease.ThisreleasesupportsTotalAccess
5000SystemRelease5.5.
B February2011 Updatedgroundinginstructions,andSafetyand
RegulatoryCompliance,andLEDinformation.

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
iv 61287722G1-5B
Hazard Classifications
Thefollowinghazardclassificationsareusedinthisdocument:
DANGER
!
DANGERindicatesahazardwithahighlevelofriskwhich,ifnotavoided,
willresultindeathorseriousinjury.
WARNING
!
WARNINGindicatesahazardwithamediumlevelofriskwhich,ifnot
avoided,couldresultindeathorseriousinjury.
CAUTION
!
CAUTIONindicatesahazardwithalowlevelofriskwhich,ifnotavoided,
couldresultinminorormoderateinjury.CAUTIONcanalsobeusedtoalert
againstunsafepracticesassociatedwitheventsthatcouldleadtopersonal
injury.
NOTICE
Noticecall‐outsindicateapotentiallyhazardoussituationnotrelatedto
personalinjury,suchasmessagesrelatedtopropertydamageonly.
NOTE
Notesinformtheuserofadditional,butessential,informationorfeatures.

61287722G1-5B v
Icons
ThefollowingiconsareusedthroughouttheADTRANdocumentsuite:
Training
ADTRANofferstrainingcoursesonourproducts.Thesecoursesincludeoverviewson
productfeaturesandfunctionswhilecoveringapplicationsofADTRANproductlines.
ADTRANprovidesavarietyoftrainingoptions,includingcustomizedtrainingandcourses
taughtatourfacilitiesoratcustomersites.
Forinquiriesconcerningtraining,contactADTRAN:
TrainingPhone:800‐615‐1176,ext.6303
TrainingFax:256‐963‐6217
TrainingEmail:[email protected]
deployment guide
installation guide
jobAid
reference guide
diagnostic guide
compliance
engineering guide
application guide
release notes
upgrade guide
user guide

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
vi 61287722G1-5B

61287722G1-5B vii
Contents
Scope of this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
In this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Modules and Housings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety and Regulatory Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Components and Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mechanical Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Outer Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Outer Enclosure Security Locking Feature . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Outer Enclosure with Cover Removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Data Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Voice Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SBU ONT Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Ethernet Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
POTS Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
UPS Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Shipping Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Necessary Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Instructions for Installing the SBU ONT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Determining SBU ONT Enclosure Location . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mounting the Enclosure Outdoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Install the Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Installed Outdoor SBU ONT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Ground Wire Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Alternative Grounding Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Local Power Source Wire Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
viii 61287722G1-5B
SBU ONT Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Installation of the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Subscriber Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
POTS Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Install Ethernet Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Install DS1 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Install Fiber to the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Mounting the Electronics Module Indoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Installed Indoor Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Commissioning and Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Turn-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Secure the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Test for POTS Line Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Provision Ethernet Interface at OLT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Faults Indicated with LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
LEDs in Normal State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
LEDs in Fault State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
SBU ONT Trouble Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
UPS Power LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
NET Status LED Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
POTS Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Cleaning and Inspection of Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Cleaning Suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Cleaning the Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Signal Level Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Downstream Signal Level Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Upstream Signal Level Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
UPS Communication Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Appendix A
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Warranty and Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
ADTRAN Sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
ADTRAN Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
ADTRAN Repair/CAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Repair and Return Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

61287722G1-5B ix
Figures
Figures
Figure 1. Enclosure and Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 2. Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. Uninterruptible Power Supply (UPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4. Typical SBU ONT Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 5. Enclosure Mounting Holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 6. Installing the Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 7. Completed SBU ONT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 8. Cable Ground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 9. SBU ONT Ground Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 10. Euro SBU ONT Power and UPS Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 11. Power/Alarm Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 12. UPS Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 13. POTS Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 14. Ethernet and DS1 Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 15. Install Fiber to the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 16. Indoor Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 17. Completed Indoor Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 18. Network LED Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 19. Downstream Test Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 20. Upstream Test Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
x61287722G1-5B

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
x61287722G1-5B
TablesList of T ables
Tables
Table 1. Topic List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table 3. Modules and Housings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 4. Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 5. UPS Pin-Out Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 6. Ethernet Cable Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 7. Ethernet LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 8. DS1 Cable Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 9. Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 10. Power LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 11. Downstream Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 12. Upstream Power Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table 13. UPS Communication Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 14. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
xi 61287722G1-5B

61287722G1-5B 1
Total Access 372
Small Business Unit ONT
Scope of this Guide
ThisdocumentprovidesinstructionsfortheinstallationandmaintenanceoftheTotalAccess
372SmallBusinessUnitONT(SBUONT).Itincludesinstallationinstructions,LEDdescrip‐
tions,regulatoryinformationandtroubleshootingprocedures.
In this Guide
ThisguidecontainsthetopicslistedinTable1.
Table 1. Topic List
Topic See Page
Description 2
SafetyandRegulatoryCompliance 4
ComponentsandInterfaces 6
Installation 12
MountingtheElectronicsModuleIndoors 30
Troubleshooting 35
Maintenance 42
Specifications 42

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
261287722G1-5B
Related Documentation
RefertoTable2foradditional,detailedinformationconcerningtheSBUONT.
Description
The Total Access®372 Small Business Unit (SBU) Optical Network Terminations
(ONT) is a Gigabit Passive Optical Network ONT. The SBUONT supports the following
features:
•Eight(8)POTSports
•Four(4)DS1circuitemulatedT1interfaces(forPBXapplication)
•Two(2)GigabitEthernetinterfaces
Opticaltechnologyprovidesaconsistentandcommonapproachtoadvancingthepublic
communicationsnetworkusing:
• TraditionaltelephoneservicesisPlainOldTelephoneService(POTS)
•Highspeeddataservices
•IPVideoservices
TheopticalnetworkconsistsofanOpticalLineTerminal(OLT)locatedatthecentraloffice
andanOpticalNetworkTerminal(ONT)locatedatthecustomerpremises.
Toallowforthetransmissionofdownstreamandupstreamtrafficonasinglefiber,different
wavelengthsareusedforbothdirections.Downstreamtrafficuses1490nmwhileupstream
trafficuses1310nm.TheSBUONTemployesdiplexerstoseparatewavelengths.
IntheupstreamdirectiontransmissionofdatamustbecoordinatedbetweeneachSBUONT
toavoidcollisionsduetothesharedmediaoftheopticaldistributionnetwork(ODN).Datais
transmittedaccordingtocontrolmechanismsconfiguredintheOLT.
Table 2. Related Documentation
Title Part Number
ComponentLevelDocumentation
TotalAccess372SmallBusinessUnitONTJobAid 61287722G1‐22
TotalAccess372SmallBusinessUnitONTSafetyandRegulatoryComplianceNotice 61287722G1‐17
SystemLevelDocumentation
TotalAccess5000FibertothePremiseDeploymentGuide 65K55FTTP‐50
TotalAccess5000BBDLCDeploymentGuide65K57BBDLC‐50

Description
61287722G1-5B 3
Features
ThebasicfeaturesoftheSBUONTincludethefollowing:
•Box‐in‐box,weatherproofandaccesscontrollingconstruction
•Entryportsforfiber,power,ground,Ethernet,telephone,andDS1
•ReportsfouralarmsfromtheUPSpowersupply
• Dataservicessupportedbytwo10/100/1000Base‐TEthernetinterfaces
•BasictelephoneservicesupportedbyeightPOTSinterfaces
• SupportforfourDS1PortsandtwoEthernetPorts
•12VDCpowersupply
Modules and Housings
ThisguidecoversthefollowingAdtranONTelectronicmodulesandhousings:
Table 3. Modules and Housings
Total Access 372# Description
1287722G1 TotalAccess372SBUElectronicsModule
1187774G1 StandardSBUModel774Housing
1187775G1 SBUOptiTapModel775Housing

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
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Safety and Regulatory Compliance
CAUTION
!
ElectrostaticDischarge(ESD)candamageelectronicmodules.When
handlingmodules,wearanantistaticdischargewriststraptoprevent
damagetoelectroniccomponents.Placemodulesinantistaticpacking
materialwhentransportingorstoring.Whenworkingonmodules,always
placethemonanapprovedantistaticmatthatiselectricallygrounded.
TheTotalAccess372SBUONTisNRTLListedtotheapplicableULsafetystandards.This
producthasbeenevaluatedtointernationalsafetystandardsEN60950‐1,AS/NZS60950.1,
andIEC60950‐1.ThisproductmeetstherequirementsforCEmarkingundertheEMC
DirectiveandLowVoltageDirective.StandardsusedtodemonstrateComplianceareEN300
386andEN60950.
TheTotalAccess372SBUONTisintendedfordeploymentintheOutsidePlant(OSP)at
locationswheretheNECapplies(forexample,CustomerPremises)andisintendedtobe
installedbytrainedservicepersonnel.
TheTotalAccess372SBUONTistobeinstalledandservicedbyQualifiedServicepersonnel
only.
ThisdevicecomplieswithPart15oftheFCCrules.Operationissubjecttothefollowingtwo
conditions:
1. Thisdevicemaynotcauseharmfulinterference.
2. Thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause
undesiredoperation.
ChangesormodificationsnotexpresslyapprovedbyADTRANcouldvoidtheuser’s
authoritytooperatethisequipment.
CAUTION!
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY
HANDLING PRECAUTIONS REQUIRED

Safety and Regulatory Compliance
61287722G1-5B 5
WARNING
!
The10/100/1000Base‐Tport(s),POTSport(s)andDS1port(s)areclassifiedas
Type4asdefinedinAppendixBofGR‐1089‐COREIssue5,andaresuitable
forconnectiontointra‐buildingorunexposedwiringorcablingonly.Donot
metallicallyconnecttheseportstointerfaceswhichconnecttotheOutside
Plant(OSP)ortotheOSPwiring.The10/100/1000Base‐TportsandPOTSare
designedforuseasanintra‐buildingunexposedinterfaceonly(Type4ports
asdescribedinGR‐1089‐COREIssue5)andrequireisolationfromexposed
OSPcabling.TheadditionofPrimaryProtectorsisnotsufficientprotectionin
ordertoconnectthisinterfacemetallicallytoOSPwiring.
NOTE
•TheTotalAccess372SBUONTisdesignedtobedeployedinGR‐3108‐
COREenvironmentalclass4asdefinedinGR‐3108‐COREissue2.
•Powersupplyinputandoutputconductorsofequipment,andsignal
conductorsofequipmentwhichareexposedoutsideofthebuilding,are
intendedtobelessthat140feet(42.6meters)andhaveadequateclearance
frompowerandlightningconductorsinaccordancewithNEC725and800.
FinalacceptanceoftheListedequipmentinstallationwillultimatelybeup
tothelocalAuthorityHavingJurisdiction(AHJ).
Thisproductisdesignedtomeetthefollowingenvironmentalclasses:
•ETSIEN300019‐1‐1“Classificationofenvironmentalconditions;Storage”,Class1.2
•ETSIEN300019‐1‐2“Classificationofenvironmentalconditions,Transportation”,Class
2.3
•ETSIEN300019‐1‐4“Classificationofenvironmentalconditions,Stationaryuseatnon‐
weatherprotectedlocations”,Class4.2H
Theequipmentisdesignedtofunctionwithoutdegradationduringexposuretoalltestsever‐
itiesperClass4.2HofETSIEN300019‐1‐4.
ThisproductcomplieswithETSIEN300386“ElectromagneticcompatibilityandRadio
spectrumMatters(ERM);Telecommunicationnetworkequipment;ElectromagneticCompati‐
bility(EMC)requirements.”
ThisproductmeetsEURoHSDirective2002/95/ECand/orapplicableexemptions.Referto
www.adtran.comforfurtherinformationonRoHS/WEEE.

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
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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ElectronicsModule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requirements.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open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Pin‐in‐Hexscrew

Components and Interfaces
61287722G1-5B 7
Outer Enclosure with Cover Removed
TheOuterEnclosurebase(refertoFigure1)containscableentrypointsforpower,ground,
Telcoincomingcablingandcablingtothecustomerpremesis.Eachcableentryhasgrommets
toprovideenvironmentalprotection.ThecableentriesalsosupportstrainreliefwithTie‐
wraps.
Figure 1. Enclosure and Electronics Module
NOTE
Inthefigureabove,thecoverfortheEnclosurehasbeenremovedforclarity
purposes.
Telco Access Screw
Surface Mounting
Hole
Surface
Mounting
Hole
TELEPHONETROUBLESHOOTING:
1. Identify the bad line (POTS1-8).
2. Plug any working phone into
theappropriate jack.
If the telephone works, the unit
isfunctioning normally.
If the telephone does not work,
contact your service provider.
3. Removethe telephone from the
POTSjack.
TOTALACCESS372
1287722G1

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
861287722G1-5B
Electronics Module
TheElectronicsModule(seeFigure2)isnotdesignedtoberemovedaftertheinitialinstal‐
lation.
Figure 2. Electronics Module