Install Guide

Site preparations
The S4048T-ON is suitable for installation as part of a common bond network (CBN).
You can install the system in:
● Network telecommunication facilities
● Data centers
● Other locations where the National Electric Code (NEC) applies
For more information about S4048T-ON specifications, see Specifications.
NOTE: Install the S4048T-ON system into a rack or cabinet before installing any optional components.
Topics:
• Site selection
• Cabinet placement
• Rack mounting
• System ground
• Fans and airflow
• Power
• Storing components
Site selection
Install Dell EMC equipment in restricted access areas.
A restricted access area is one in which service personnel can only gain access using a special tool, lock, key or other means of
security. Only the authority responsible for the location can grant access to the restricted access area.
CAUTION:
Your switch is not NEBS Earthquake Z4-compliant if you use the 1U tool-less square-hole or two-post
installation methods.
CAUTION: Only trained and qualified personnel should install this equipment. Read this guide before installing
and powering up the system.
WARNING: The following information is a condensed reference. Read the safety instructions in your Safety,
Environmental, and Regulatory information booklet before you begin.
Ensure that the area where you install your system meets the following safety requirements:
● Near an adequate power source. Connect the switch to the appropriate branch circuit protection according to your local
electrical codes.
● Environmental temperature between 32° to 113°F (from 0° to 45°C).
● The switch operating ambient temperature range is from 0° to 45°C (from 32° to 113°F).
● Relative humidity is from 5 to 90 percent noncondensing.
● In a dry, clean, well-ventilated and temperature-controlled room, away from heat sources such as hot air ventilation outlets
or direct sunlight.
● Away from sources of severe electromagnetic noise.
● Inside the restricted access area, positioned in a rack or cabinet, or on a desktop with adequate space in the front, back, and
sides for proper ventilation and access.
● Install the switch in Information Technology Rooms in accordance with Article 645 of the National Electrical Code and NFPA
75.
For more information about switch storage and environmental temperatures, see Specifications.
Review these guidelines for rack mounting:
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12 Site preparations