Letter of Volatility EX4100-F-24P/T 2/2/2023
UNCLASSIFIED
Figure 2-1: EX4100-F-24P/T
2.2 Description of Field Replaceable Units (FRU)
The power supply and transceivers are hot-swappable. You can remove and
replace them without powering off the system or disrupting system functions.
None of these components contain NV RAM. All NV RAM is either soldered or
installed onto the system board.
3 VOLATILE AND NON-VOLATILE MEMORIES
This section covers the identification of volatile and non-volatile memories on
EX4100-F-24P/T system.
Main Board:
Non-volatile devices are listed below.
CONN 13 - eUSB (System storge) – stores user data.
U136, 137 - Uboot (SPI Flash)
U21 - IDEEPROM
U33 - Main-board CPLD
U192 - Golden CPLD
Volatile devices are listed below.
U14, U17, U22, U31, U34 - On Board DDR Memory
BA1, U140 - RTC battery
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