Grounding Instructions
TA 900 Series (3rd Gen) HIG
22
Copyright © 2020 ADTRAN, Inc.
61213908F1-34A
5. GROUNDING INSTRUCTIONS
The following provides grounding instructions for the Underwriters’ Laboratory UL 60950-1
Standard for Safety of Information Technology Equipment Including Electrical Business
Equipment.
A supplementary equipment grounding conductor shall be installed between the product or
system and ground that is in addition to the equipment grounding conductor in the power supply
cord. The supplementary equipment grounding conductor shall not be smaller in size than the
ungrounded branch-circuit supply conductors. The supplementary equipment grounding
conductor shall be connected to the product at the terminal provided, and shall be connected to
ground in a manner that will retain the ground connection when the product is unplugged from
the receptacle. The connection to ground of the supplementary equipment grounding conductor
shall be in compliance with the rules for terminating bonding jumpers at Part K or Article 250 of
the National Electrical Code, ANSI/NFPA 70. Termination of the supplementary equipment
grounding conductor is permitted to be made to building steel, to a metal electrical raceway
system, or to any grounded item that is permanently and reliably connected to the electrical
service equipment ground.
The supplemental grounding 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.
Grounding for AC Power
The attachment-plug receptacles in the vicinity of the product or system are all to be of a
grounding type, and the equipment grounding conductors serving these receptacles are to be
connected to earth ground at the service equipment.
6. SUPPLYING POWER TO THE UNIT
As shipped, each Total Access 900 Series product is set to factory default conditions. After
installing the unit, the Total Access 900 Series product is ready for power up. To power the unit,
ensure that the unit is properly connected to an appropriate power source (as outlined in the
sections below).
The Total Access 900 Series products utilize integrated AC power supplies for direct connection
to a standard 120 VAC, 60 Hz, AC outlet. The current rating for Total Access 908 products is
0.6A. The current rating for the Total Access 916/924 products is 1.5A. A grounded, three-plug
detachable AC power cable is included with the shipment.
