Keysight M8920A, Getting Started Manual

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Step 3 -Install the Software
is possible for an instrument to have different features available to it based on what
licenses are available on the server when it tries to get the licenses.
Setting up network licenses is done via the Keysight Floating License Manager . Refer
to the Installation Guide that can be downloaded from this web page.
Application licenses
Application licenses (like N9093EM0E-1NP) are automatically checked out when
entering the mode that uses them, and they are automatically checked-in when
leaving that mode. Because the server may have already checked out the last license
for the application to another instrument, there is a possibility that a mode switch will
fail because a required license could not be checked out from the server. If the server
has a limited number of licenses compared to the number of users desiring to use that
license, this may mean that switching from mode A to mode B then back to mode A
may fail when returning to mode A because another instrument checked out the last
available license while the user was in mode B. Also, for modes with multiple licenses
for different features (like Multi-Standard Radio), the features available may also
change when switching out of the mode and back into it.
USB Portable Licenses
The USB Portable license is implemented with a physical dongle that is a USB device
like a USB thumb drive. It has a Host ID fixed in the dongle hardware. It does not
contain any writable data and so is acceptable to high security A/D customers.
Transporting licenses from one instrument to another just requires moving the dongle
and license files to the desired instrument. The license files can be installed on many
instruments, but they will only be valid on the one instrument that has the dongle.
USB Portable licenses are identified in the product structure by an "U" in the second
character and either a "P" or an "L" in the third character, indicating a term of either
Perpetual or 1 year (12 months), respectively.
Example: N9093EM0E-1UP
With USB portable licenses, the pre-installed Keysight Floating License Manager is
used to add licenses to the instrument’s server.
USB Portable licenses with a limited count are checked out and in like Network
licenses. Because the licenses are local, there will be no network latency involved in
the check-out/check-in, but there can still be a slight performance degradation
compared to Fixed and Transportable licenses.
USB Portable licenses that are "uncounted", will perform comparably to the Fixed and
Transportable licenses.
Plugging/un-plugging the dongle is equivalent to transporting a license to/from the
instrument, however, the software must be restarted whenever the dongle is plugged
in.
32 M8920A Getting Started Guide