Anritsu MG369 Series, Руководство по эксплуатации, Страница: 121 / 268

3-14
Secure Operation
The MG369XB can be operated in a secure mode of operation. In this
secure mode, the display of all frequency and power level parameters
is disabled during both local (front panel) and remote (GPIB) opera-
tions. The instrument will continue to function normally in all other
respects. The following paragraphs describe how to place the signal
generator in secure mode and how to return to normal operation.
To place the MG369XB in the secure mode, first
press
System to display the System menu.
Next, press Secure [DS0] . This places the signal
generator in the secure mode and the Secure menu
(below) is displayed.
NOTE
During secure mode, all main menu keys and
menu soft-keys operate normally. The menu
soft-key labels are displayed and change with
menu selections. Only the parameter display is
disabled.
To return the MG369XB to unsecured (normal) op-
eration, press
System , then press Reset .
Memory
Profile and
Security
Issues The MG369XB has 8 MB of flash non-volatile mem-
ory, 128 KB of SRAM battery-backed non-volatile
memory, and 16 MB of DRAM volatile memory. It
does not have a hard drive or any other type of vola-
tile or non-volatile memory.
Flash Memory
This memory space is used to store the instrument
firmware and factory calibration. No user informa-
tion or user calibration is stored in flash memory.
Therefore, flash memory does not pose any security
issues for the user.
MG369XB OM 3-87
Local (Front Panel) Operation Secure Operation