ADTRAN Total Access 372 - Scope of this Guide; In this Guide

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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

Main Page

Table of Contents7
Scope of this Guide13
In this Guide13
Table 1. Topic List13
Related Documentation14
Description14
Table 2. Related Documentation14
Features15
Modules and Housings15
Table 3. Modules and Housings15
Safety and Regulatory Compliance16
Components and Interfaces18
Mechanical Components18
Outer Enclosure18
Outer Enclosure Security Locking Feature18
Outer Enclosure with Cover Removed19
Figure 1. Enclosure and Electronics Module19
Electronics Module20
Figure 2. Electronics Module20
Circuit Board21
Data Processing21
Voice Processing21
Alarm Reporting22
SBU ONT Interfaces22
Ethernet Interface22
POTS Interface22
UPS Power Supply23
Figure 3. Uninterruptible Power Supply (UPS)23
Installation24
Shipping Contents24
Required Tools25
Necessary Supplies25
Instructions for Installing the SBU ONT26
Figure 4. Typical SBU ONT Installation26
Determining SBU ONT Enclosure Location27
Mounting the Enclosure Outdoors28
Figure 5. Enclosure Mounting Holes28
Install the Electronics Module29
Figure 6. Installing the Electronics Module29
Installed Outdoor SBU ONT30
Figure 7. Completed SBU ONT30
Ground Wire Connection31
Figure 8. Cable Ground Installation31
Figure 9. SBU ONT Ground Connection32
Alternative Grounding Method33
Local Power Source Wire Run33
SBU ONT Power Connector34
Figure 10. Euro SBU ONT Power and UPS Connectors34
Table 4. Connector Pinout34
Figure 11. Power/Alarm Connector35
Installation of the Power Supply36
Figure 12. UPS Power Connection36
Table 5. UPS Pin-Out Connection37
Subscriber Connections38
POTS Connections38
Figure 13. POTS Connections38
Install Ethernet Connections39
Figure 14. Ethernet and DS1 Cable Connections39
Table 6. Ethernet Cable Pin-Outs39
Install DS1 Connections40
Table 7. Ethernet Leds40
Table 8. DS1 Cable Pin-Outs40
Install Fiber to the Unit41
Figure 15. Install Fiber to the Unit41
Mounting the Electronics Module Indoors42
Figure 16. Indoor Mounting42
Installed Indoor Electronics Module43
Figure 17. Completed Indoor Electronics Module43
Commissioning and Testing44
Turn-Up44
Front Panel Leds45
Secure the Unit45
Table 9. Front Panel Leds45
Test for POTS Line Faults46
Provision Ethernet Interface at OLT46
Troubleshooting47
Faults Indicated with Leds47
Leds in Normal State47
Leds in Fault State48
SBU ONT Trouble Isolation48
UPS Power Leds48
Table 10. Power Leds48
NET Status LED off49
Figure 18. Network LED Flowchart49
POTS Troubleshooting50
Cleaning and Inspection of Components50
Cleaning Suggestions50
Cleaning the Connectors50
Signal Level Verification51
Downstream Signal Level Verification51
Figure 19. Downstream Test Configuration51
Table 11. Downstream Power Level51
Upstream Signal Level Verification52
Figure 20. Upstream Test Configuration52
Table 12. Upstream Power Levels52
UPS Communication Signals53
Table 13. UPS Communication Signal Descriptions53
Maintenance54
Specifications54
Table 14. Specifications54
Warranty55
ADTRAN Sales55
ADTRAN Technical Support55
ADTRAN Repair/Caps55
Repair and Return Address55

ADTRAN Total Access 372 - Scope of this Guide; In this Guide

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