Dell S4248FB-ON Installation Manual page 4

Optics installation.............................................................................................................................................................28
Optics removal............................................................................................................................................................28
Switch power-up..............................................................................................................................................................28
Power up sequence................................................................................................................................................... 29
After switch installation...................................................................................................................................................29
Switch replacement.........................................................................................................................................................29
6 Power supplies............................................................................................................................................ 30
Components..................................................................................................................................................................... 30
PSU LEDs.................................................................................................................................................................... 31
AC or DC power supply installation................................................................................................................................ 31
AC or DC power supply replacement...................................................................................................................... 32
Connect DC power supply to power source.................................................................................................................32
7 Fans............................................................................................................................................................. 34
Components..................................................................................................................................................................... 34
Fan LEDs.....................................................................................................................................................................35
Fan module installation.................................................................................................................................................... 35
Fan module replacement...........................................................................................................................................35
Fan air filter replacement.......................................................................................................................................... 36
8 Management ports.......................................................................................................................................37
RS-232 console port access........................................................................................................................................... 37
USB storage mount......................................................................................................................................................... 38
Before you install an OS.................................................................................................................................................. 38
Example of the Grub Bootloader............................................................................................................................. 39
Example of ONIE........................................................................................................................................................39
ONIE service discovery................................................................................................................................................... 39
9 Specifications...............................................................................................................................................41
Chassis physical design....................................................................................................................................................41
IEEE standards................................................................................................................................................................. 42
Agency compliance.......................................................................................................................................................... 43
USA Federal Communications Commission statement...............................................................................................43
European Union EMC directive conformance statement........................................................................................... 43
Japan VCCI compliance for class A equipment............................................................................................................44
Korean certification of compliance................................................................................................................................ 44
Electromagnetic compatibility ....................................................................................................................................... 45
Emissions.................................................................................................................................................................... 45
Immunity..................................................................................................................................................................... 45
Safety standards and compliance agency certifications.............................................................................................45
Product recycling and disposal.......................................................................................................................................46
Waste Electrical and Electronic Equipment (WEEE) directive for recovery, recycle, and reuse of IT and
telecommunications products.................................................................................................................................. 46
10 Dell EMC support....................................................................................................................................... 47
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