Components And Interfaces; Mechanical Components; Outer Enclosure; Outer Enclosure Security Locking Feature - ADTRAN Total Access 372E Installation And Maintenance Manual

Total Access 372 Active Ethernet Small Business Unit ONT Installation and Maintenance Guide

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 Corning Systems Model
FNI-NG series outdoor Network Interface device (NID) housing is intended as a demarcation
point between the Telco and a subscriber premise. The NID housing is used in both indoor
and outdoor installations.

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 POTS
connectors, Ethernet RJ-45 connectors, and DS1, RJ-45 connectors. The enclosure door is held
in the closed position by two "snap" door retainers. To open the door these two snaps must be
disengaged 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
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