Secure‑Environment Workplace

This section describes the types of memory in the Spectrum Master, how to delete stored user files in internal memory, and recommended usage in a secure‑environment workplace.

Spectrum Master Memory Types

The MS272xB model instruments contains non‑volatile disk‑on‑a‑chip memory, EEPROM, volatile DRAM memory, and Compact Flash memory (internal and external). The instrument also has a USB Type A interface (that can accept a USB flash drive). The instrument does not have a hard disk drive or any other type of volatile or non‑volatile memory.

The MS8911B has no disk‑on‑a‑chip memory. The MS8911B has both internal and external Compact Flash memory for application and user storage.

EEPROM

This memory stores the model number, serial number, and calibration data for the instrument. Also stored here are the user‑set operating parameters, such as frequency range. During the master reset process, all operating parameters that are stored in the EEPROM are set to standard factory default values.

RAM Memory

This is volatile memory that is used to store parameters that are needed for the normal operation of the instrument along with current measurements. This memory is reset whenever the instrument is restarted.

External USB Flash Drive

This memory may be selected as the destination for saved measurements and setups for the instrument. You can also copy the contents of the internal disk‑on‑chip memory to the external flash memory for storage or data transfer. The external Flash USB can be reformatted or sanitized using software on a PC.

Refer to the File Management for additional information about saving and copying files to the USB flash drive.

Compact Flash Card

This memory may be selected as the destination for saved measurements and setups for the instrument. The external Compact Flash Card can be reformatted or sanitized using software on a PC. Refer to File Management

Erase All User Files in Internal Memory

Perform a Master Reset:

1.	Turn on the instrument.

2.	Press the Shift button then the System (8) button.

3.	Press the System Options submenu key.

4.	Press the Reset key, then the Master Reset key.

5.	A dialog box will be displayed on the screen warning that all settings will be returned to factory default values, and that all user files will be deleted. This deletion is a standard file delete and does not involve overwriting existing information.

6.	Press the Enter button to complete the master reset.

7.	The instrument reboots, and the reset is complete.

The Spectrum Master does not currently provide a secure erase feature. In environments where data security is an issue, Anritsu Company recommends that you store your Spectrum Master‑created files on an external USB Flash drive that is then securely retained, sanitized, or destroyed after use.

To set the Spectrum Master to save files to an external USB Flash drive:

1.	Attach the external Flash drive and turn on the instrument.

2.	Press the Shift button then the File (7) button.

3.	Press the Directory Management submenu key.

4.	Confirm that USB is underlined in the Current Location key image.

The external USB drive is now the default location for saving files.

Copyright 2011 Anritsu Company
	Anritsu Company
	1800-ANRITSU
	10450-00034, Rev. A
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