Replace an SFP+ or QSFP+ optic
The Dell S4048-ON switch has 48 ports that use SFP+ optics, and 6 ports that use
QSFP+ optics. To replace a failed optic, complete the following steps.
CAUTION
If the components are mishandled, ESD damage can occur. Always wear an ESD-
preventive wrist or heel ground strap when handling the S4048-ON and its
components.
WARNING
When working with optical fibers, follow all the warning labels and always wear
eye protection. Never look directly into the end of a terminated or unterminated
fiber or connector as it can cause eye damage.
Procedure
1. Push the tab on the failed optic and slide it from the port.
When removing optics with direct attach cables (DACs) from the port, pull the
release tab firmly and steadily. Before pulling the release tab, you may need to
gently push the optic into the port to ensure it is seated correctly. Do not jerk or
tug repeatedly on the tab.
2. Position the optic so it is in the correct position. The optic has a key that
prevents it from being inserted incorrectly.
3. Insert the optic into the port until it gently snaps into place.
Note
l
Both rows of QSFP+ ports require that you install the 40GbE optics with the
tabs facing up.
l
When you cable the ports, be sure not to interfere with the airflow from the
small vent holes above and below the ports.
Replacing a Power Supply
This document describes how to replace a faulted power supply in a Dell S4048-ON
network switch.
Location and description of power supply units
The S4048–ON switch contains two power supply units (PSU), designated PSU 1 and
PSU 2. Each PSU has a connector for the AC power cord connection and a lever to
release and extract the PSU from the switch.
Two PSUs are required for full redundancy, but the system can operate with a single
PSU. When running with full redundancy (two power supplies installed and running),
you can remove and replace one PSU without disrupting traffic.
Dell S4048-ON Switch FRUs
DELL EMC CONFIDENTIAL
64
Integrated Data Protection Appliance (IDPA)
2.1
Field Replacement Guide
