Technical data

23
User and Remote Interface Security Measures
SCPI/GPIB Control of Interfaces
7 User and Remote Interface
Security Measures
This chapter discusses options that are available to you to control and configure remote access to the
instrument, including:
• SCPI/GPIB Control of Interfaces
• Operating System Security Features
• USB Interfaces. This topic includes information about how to set the instrument’s USB ports to read-only.
IMPORTANT Users are responsible for providing security for the I/O ports for remote access, by
controlling physical access to the I/O ports. The I/O ports must be controlled because
they provide access to most user settings, user states, and the display memory.
SCPI/GPIB Control of Interfaces
The GPIB command LLO (local lockout) can be sent by the controller to disable operation of the instrument’s
front-panel keys and softkey menus.
However, sending the LLO command does not disable access to the instrument via its USB ports. For details
of how to restrict the operation of the USB ports, see “Configuring USB for Read-only” on page 28 below.
Operating System Security Features
The instrument’s Windows operating system includes a variety of features that you can invoke or modify to
enhance system security. These include the following:
• The ability to create custom user accounts, and assign different security levels to each account by adding
it to an existing group. The group types predefined by Windows are: Administrator, Power User, User,
Backup Operator, and Guest, but you can also define new group types.
• To provide additional protection for instruments that have a network (or internet) connection, the standard
Windows Firewall is enabled by default.