+**F5e** is a specific designation often found within a series, typically indicating an enhanced or specialized iteration. It may define a [Signal](/wiki/Signal) characteristic or a [Protocol](/wiki/Protocol) specification in technical contexts. Its exact meaning is dependent on the system or domain where it is applied.
+## See also
+- [Standard](/wiki/Standard)
+- [Designation](/wiki/Designation)
+- [System](/wiki/System)