RIGOL DSA875 - Manual (Page 166)

RIGOL Chapter 2 Front Panel Operation
User’s Guide for DSA800 Series 2-114
License
DSA800 provides many kinds of options to fulfill various measurement
requirements. To order the corresponding option, please contact
RIGOL.
1. To Acquire the License
1) Please order the desired option and the option key is provided.
2) Log in
RIGOL website (www.rigol.com); click “Customer Center” and
select “License Generate” to enter the software license generation
interface.
3) Input the correct option key, instrument serial number (press System 
Information  System Info to acquire the serial number) and
identifying code as well as click “Generate” to acquire the corresponding
option license.
2. To install and view the option
Press License to enter the option management interface to view the option
status and the license key of the installed option as well as install the desired
option.
1) Option Info
Press Option Info to view the installation status of options.
2) License Info
Press License Info to view the license key of the option installed.
3) Install
Press Install and use the numeric keypad and the knob on the front
panel to enter the option license. For example,
DASXZJWFDAMPGSN7VAW9HTM8YCCA. After all the characters are
entered, press OK to finish the input. The analyzer identifies the entered
license key and matches it to the corresponding option automatically. At
this point, the option is installed and activated (Y is displayed in the Active
column).