Setup Guide
Optics installation
WARNING: When working with optical bers, follow all warning labels and always
wear eye protection. Never look directly into the end of a terminated or
unterminated ber 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: When you cable the ports, be sure not to interfere with the airow
from the small vent holes above and below the ports.
Switch power-up
Supply power to the S4200-ON Series (S4248FB-ON and S4248FBL-ON) switch after you
mount it in a rack or cabinet.
Reinspect your switch before power up. Verify the following:
• The equipment is properly secured to the rack. Dell EMC recommends properly
grounding the switch.
• The ambient temperature around the unit, which may be higher than the room
temperature, is within the limits specied for the S4200-ON Series, see Specications.
• There is sucient airow around the unit.
• The input circuits are correctly sized for the loads and that you use sucient overcurrent
protection devices.
• All protective covers are in place.
• Blank panels are installed if you do not install optional modules.
CAUTION
: Do not power up the switch if you did not install a fan module.
NOTE: A US AC power cable is included for powering up an AC power supply. You
must order all other power cables separately.
NOTE: ESD damage can occur if components are mishandled. Always wear an ESD-
preventive wrist or heel ground strap when handling the switch and its components.
S4200-ON Series Installation 23