TA 900 Series (3rd Gen) HIG
Supplying Power to the Unit
61213908F1-34A
Copyright © 2020 ADTRAN, Inc.
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• In addition to the equipment earthing conductor in the power supply cord, a
supplementary equipment earthing conductor is to be installed between the
system and earth.
• The supplemental earthing conductor shall be connected to the equipment using
a #6 ring terminal and should be fastened to the grounding lug provided on the
rear panel of the equipment. The ring terminal should be installed using the
appropriate crimping tool.
• The supplementary equipment earthing conductor must not be smaller in size
than cross-sectional area of not less than 2.5 mm
2
/14 AWG, if mechanically
protected. The supplementary equipment earthing conductor is to be connected
to the product at the terminal provided, and connected to earth in a manner that
will retain the earth connection when the power supply cord is unplugged. The
connection to earth of the supplementary earthing conductor must be in
compliance with the appropriate rules for terminating bonding jumpers in Part K
of Article 250 of the National Electrical Code, ANSI/NFPA 70, and Article 10 of
Part 1 of the Canadian Electrical Code, Part 1, C22.1. Termination of the
supplementary earthing conductor is permitted to be made to building steel, to a
metal electrical raceway system, or to any earthed item that is permanently and
reliably connected to the electrical service equipment earthed.
• Bare, covered, or insulated earthing conductors are acceptable. A covered or
insulated conductor must have a continuous outer finish that is either green, or
green with one or more yellow stripes.
• A readily accessible disconnect device, that is suitably approved and rated, shall
be incorporated in the field wiring.
• Maximum recommended ambient operating temperature is 50
°
C.
• The installation of this product must comply with the national, state and local
electrical code requirements, as applicable. The AC branch circuit overcurrent
protection must be a fuse or circuit breaker rated 125 VAC, 20 Amps maximum.
A readily accessible disconnect device that is suitably approved and rated must
be incorporated in the field wiring.
• The AC branch circuit socket-outlet must be installed near the equipment and
must be easily accessible.
• It is recommended that an external AC Surge Protection Device be installed at
the AC input connection to the local AC-Powered product. The Surge Protection
device should provide L-N, L-G, and N-G protection. It is also recommended that
the device contains a visual 'GOOD' indicator.
