Determining Sbu Ont Enclosure Location - ADTRAN Total Access 372E Installation And Maintenance Manual

!
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 6
AWG copper ground conductor shall be used to connect the equipment to
earth ground.
• This equipment must be serviced 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 modifications to the printed circuit board. Improper repairs can
create a safety hazard.

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
• Mount the unit within proximity of the AC electrical power meter where the Multi-
• Mount the unit away from down spouts, permanent water sprinklers, or other water
• Consider proper clearances for opening of the swinging SBU ONT covers.
The height of the mounting can vary, however it is recommended 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
assumed to enter the SBU ONT from the ground upwards.
The enclosure is mounted vertically. If at all possible, the enclosure should be surface mounted
on a flat surface.
61287723G1-5B
install siding and other building material around the outside of the enclosure to prevent
excessive heat buildup and ultimate product failure.
Ground Neutral (MGN) is easily accessible.
sources.
Installation
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