Rack Mounting Total Access 900E Series; Grounding Instructions - ADTRAN Total Access 908e Hardware Installation Manual

Total Access 900e Series Hardware Installation Guide

Rack Mounting Total Access 900e Series

The Total Access 900e Series products are housed in a 1U-high, rack mountable chassis which can be
installed into 19-inch or 23-inch equipment racks. For a rackmount installation, optional rackmount
brackets must be purchased (19-inch – P/N 1200927L19, 23-inch – P/N 1200927L23).
The Total Access 900e Series products mount and connect with standard fasteners and hand tools.
ADTRAN recommends 1U (1.75 inches) of separation above and below the
Total Access 900e Series unit. This spacing allows the unit to dissipate heat. The design of
the Total Access 900e Series uses the chassis to distribute heat generated by the unit's
internal cards. This design allows the unit to operate without a cooling fan, thus creating
overall reliability of the unit.
Follow these steps to rackmount the Total Access 900e Series:
Instructions for Rack Mounting Total Access 900e Series
Step
1 Position the Total Access 900e Series in a stationary equipment rack. This unit takes up 1U of
space. To allow proper grounding, scrape the paint from the rack around the mounting holes
where the Total Access 900e Series will be positioned.
2 Have an assistant hold the unit in position as you install two mounting bolts through the unit's
brackets and into the equipment rack.
3 Proceed to Grounding Instructions below.
Be careful not to compromise the stability of the equipment mounting rack when installing
this product.

Grounding Instructions

The following provides grounding instructions for the Underwriters' Laboratory UL 60950 Standard for
Safety of Information Technology Equipment Including Electrical Business Equipment, with revisions
dated March 15, 2002.
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.
64240916L1-34D
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Copyright © 2006 ADTRAN, Inc.
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