Utility Settings 22
Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide 285
 
LAN Port Use this drop-down list to disable or enable the oscilloscope's LAN port. The 
LAN port lets you access the oscilloscope's built-in web interface and issue 
remote commands.
When the LAN port is disabled, the oscilloscope cannot be pinged and is 
essentially invisible over Ethernet to any device, even if an Ethernet cable in 
plugged into the oscilloscope's LAN port.
USB Device Port Use this drop-down list to disable or enable the oscilloscope's USB Device port. 
The USB Device port is the square shaped USB port for connecting the 
oscilloscope to a host PC for remote communication.
USB Host Ports Use this drop-down list to disable or enable the oscilloscope's USB Host ports. 
The USB Host ports are the rectangular shaped USB ports used for connecting a 
USB mass storage device, printer, mouse, or keyboard to the oscilloscope.
Non-Volatile 
Memory
Use this drop-down list to disable or enable the oscilloscope's non-volatile 
memory. The contents of non-volatile memory are kept when the oscilloscope is 
powered off.
Normally, the oscilloscope's internal storage for setup files, mask files, and 
arbitrary waveforms (under "\User files") and for symbolic decoding files, etc., is 
non-volatile; however, when the non-volatile memory is disabled, this internal 
storage becomes volatile and is not kept when the oscilloscope is powered off.
Also, when non-volatile memory is disabled:
• The oscilloscope is restored to a factory default setup when powered on.
• Licenses and calibration factors, which are not user-accessible, are retained.
• Web-based firmware upgrades are disabled, even if the oscilloscope's LAN 
Port and Firmware Upgrade options are enabled.
Firmware 
Upgrade
Use this drop-down list to disable or enable the ability to upgrade firmware.
When firmware upgrades are disabled:
• Firmware installers (.swu files) are prevented from being loaded into, or run 
in, the oscilloscope. This applies to firmware upgrades from external USB 
mass storage devices as well as web-based firmware upgrades.
• Licenses can still be installed
• Recallable files (setup files, mask files, etc.) can still be accessed from 
external media if the appropriate communication ports are enabled.
Note that web-based firmware upgrades are disabled when non-volatile 
memory is disabled, even when this and the LAN Port options are enabled.
SCPI Use this drop-down list to disable or enable the ability to send SCPI commands 
and queries to the oscilloscope over LAN or USB connections.