Letter of Volatility
PXIe-4135/4137 (40W)

Manufacturer: NI
Board Assembly Part Numbers (Refer to Procedure 1 for identification procedure):
Part Number and Revision
133669A-01L or later
133668A-01L or later

Description
PXIe-4135, 1-Ch System SMU: 200V, 1A (40W)
PXIe-4137, 1-Ch System SMU: 200V, 1A (40W)

Volatile Memory
Target Data
Device operation (x2)

TypeFPGASize
XilinxXC6SLX45 (x2)Battery
BackupNo

User1
Accessible
No

SystemAccessible
Yes

Sanitization
Procedure
Cycle Power

BatteryBackup
No

User
Accessible

SystemAccessible

Sanitization
Procedure

No
Yes
NoYesYesYes

None
Procedure 2
None

Non-Volatile Memory (incl. Media Storage)
Target Data
Device configuration
 Device information
 Calibration metadata Calibration data2

TypeFlashSize
1 MB

1Refer to Terms and Definitions section for clarification of User and System Accessible
Calibration constants that are stored on the device include information for the device’s full operating range. Any implications
resulting from partial self-calibration can be eliminated by running the full self-calibration procedure.

2

September 2021
378508A-01 Rev 001

Notice: This document is subject to change without notice.
For the most recent version, visit ni.com/manuals.

Contact: 866-275-6964
support@ni.com

Letter of Volatility
PXIe-4135/4137 (40W)

Procedures
Procedure 1 – Board Assembly Part Number identification:
To determine the Board Assembly Part Number and Revision, refer to the label applied to the surface of yourproduct. The Assembly Part Number should be formatted as “P/N: 13366#a-01L” where “a” is the letter revision ofthe assembly (eg. A, B, C…) and “#” is the number that identifies the model from the Board Assembly Part
Number table.
Procedure 2 - Device Configuration Flash (Calibration Metadata):
Requirements: LabVIEW version 2017 or later, NI-DCPower version 20.7 or later that supports this model
The user-accessible areas of the Device Configuration Flash are exposed through a calibration Applications
Programming Interface (API) in LabVIEW. To clear the calibration meta-data area, complete the following steps:
1. To clear the calibration password, use the niDCPower Change Ext Cal Password.vi to overwrite thecurrent password of the device you wish to clear.
2. To clear the user-defined information, use the niDCPower Set Cal user Defined Info.vi to overwrite thecurrent user-defined information of the device you wish to clear.

September 2021
378508A-01 Rev 001

Notice: This document is subject to change without notice.
For the most recent version, visit ni.com/manuals.

Contact: 866-275-6964
support@ni.com

Letter of Volatility
PXIe-4135/4137 (40W)

Terms and Definitions
Cycle Power:
The process of completely removing power from the device and its components and allowing for adequate
discharge. This process includes a complete shutdown of the PC and/or chassis containing the device; a reboot isnot sufficient for the completion of this process.
Volatile Memory:
Requires power to maintain the stored information. When power is removed from this memory, its contents are lost.
This type of memory typically contains application specific data such as capture waveforms.
Non-Volatile Memory:
Power is not required to maintain the stored information. Device retains its contents when power is removed.
This type of memory typically contains information necessary to boot, configure, or calibrate the product or may
include device power up states.
User Accessible:
The component is read and/or write addressable such that a user can store arbitrary information to the component
from the host using a publicly distributed NI tool, such as a Driver API, the System Configuration API, or MAX.
System Accessible:
The component is read and/or write addressable from the host without the need to physically alter the product.
Clearing:
Per NIST Special Publication 800-88 Revision 1, “clearing” is a logical technique to sanitize data in all User
Accessible storage locations for protection against simple non-invasive data recovery techniques using the sameinterface available to the user; typically applied through the standard read and write commands to the storage
device.
Sanitization:Per NIST Special Publication 800-88 Revision 1, “sanitization” is a process to render access to “Target Data” on themedia infeasible for a given level of effort. In this document, clearing is the degree of sanitization described.

September 2021
378508A-01 Rev 001

Notice: This document is subject to change without notice.
For the most recent version, visit ni.com/manuals.

Contact: 866-275-6964
support@ni.com