Security Features and Document of Volatility
User and Remote Interface Security Measures
32
8 User and Remote Interface Security Measures
This chapter discusses options that are available to you to control and
configure user and 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.
— SD Memory Card
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 33 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.
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