Install Guide
Table Of Contents
- S3048-ON Installation Guide January 2019
- About this guide
- The S3048–ON switch
- Site preparations
- NEBS compliance
- Install the S3048–ON
- Power supplies
- Fans
- Management ports
- Specifications
- Chassis physical design
- IEEE Standards
- Agency compliance
- USA Federal Communications Commission Statement
- European Union EMC Directive Conformance Statement
- Japan VCCI Compliance for Class A Equipment
- Korean Certification of Compliance
- Safety Standards and Compliance Agency Certifications
- Electromagnetic compatibility
- Product recycling and disposal
- Dell EMC support
Power supplies
The S3048–ON ships with one AC power supply. Dell EMC recommends purchasing a second power supply.
The S3048–ON supports AC power supplies with two air-ow directions—from the I/O side to the PSU side and from the PSU side to the
I/O side. Two PSUs are required for full redundancy, but the switch can operate with a single PSU.
The PSUs are eld replaceable. When running with full redundancy—two power supplies installed and running, you can remove and replace
one PSU without disrupting trac.
CAUTION: To prevent electrical shock, ensure that the S3048-ON is grounded properly. If you do not ground your equipment
correctly, excessive emissions may result. Use a qualied electrician to ensure that the power cables meet your local electrical
requirements.
NOTE: If you use a single PSU, install a blank plate in the other PSU slot. Dell EMC recommends using power supply 2 (PSU2) as
the blank plate slot. Use a #1 Philips screw driver to install the blank plate.
NOTE: ESD damage can occur if components are mishandled. Always wear an ESD-preventive wrist or heel ground strap when
handling the S3048–ON and its components.
Topics:
• Components
• AC power supply installation
• AC power supply replacement
Components
The following power supply options are available for the S3048–ON:
• AC power supply with integrated fan
• AC power supply with integrated reverse ow fan
Power supply 1 (PSU1) is on the left side of the chassis; power supply 2 (PSU2) is on the right side of the chassis.
Figure 11. S3048–ON PSUs
1 PSU 1 and 2
The PSUs have an integrated fan, which you cannot replace individually. If the fan integrated in a PSU fails, you must replace the entire
PSU. You can replace the fan trays individually. For fan tray replacement procedures, see Fans.
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24 Power supplies