Installing The Sfp+ And Qsfp+ Optics; Supply Power And Power Up The System - Dell S4048 Getting Started Manual

Installing the SFP+ and QSFP+ Optics

The S4048–ON has 48 small form-factor pluggable plus (SFP+) optical ports and six quad small form-
factor pluggable plus (QSFP+) optical ports.
For a list of supported optics, refer to the S4048–ON data sheet at www.dell.com or contact your Dell
Networking representative.
CAUTION: ESD damage can occur if the components are mishandled. 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 may cause eye damage.
1. Position the optic so it is in the correct position. The optic has a key that prevents it from being
inserted incorrectly.
2. Insert the optic into the port until it gently snaps into place.
NOTE: Both rows of QSFP+ ports require that you install the 40 GbE optics with the tabs facing
up.
NOTE: When you cable the ports, be sure not to interfere with the airflow from the small vent
holes above and below the ports.

Supply Power and Power Up the System

Supply power to the S4048–ON after the chassis is mounted in a rack or cabinet.
Dell Networking recommends re-inspecting your system prior to powering up. Verify that:
• The equipment is properly secured to the rack.
• The equipment rack is properly mounted and grounded.
• The ambient temperature around the unit (which may be higher than the room temperature) is within
the limits specified for the S4048–ON.
• There is sufficient airflow around the unit.
• The input circuits are correctly sized for the loads and that you use sufficient overcurrent protection
devices.
• All protective covers are in place.
NOTE: A country/region-specific AC power cable is included in the shipping container for powering
up an AC power supply. You must order all other power cables separately.
CAUTION: ESD damage can occur if the components are mishandled. Always wear an ESD-
preventive wrist or heel ground strap when handling the S4048–ON and its components.
When the system powers up, the fans come on at high speed. The fan speed slows as the system boots
up. The power status LED blinks until the boot-up sequence is complete. When the boot up is complete,
the power status LED is steadily lit.
AC Power
CAUTION: Ensure that the PSU is installed correctly. The AC power connector must be on the left
side of the PSU and the status LED at the top of the PSU.
14
Install the Hardware