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USER’S GUIDE
Battery Management System
120
Choosing a method for your system
Using the Secure Sockets Layer (SSL) protocol, you can choose any of the
following methods for using digital certificates.
Method 1: Use the Battery Management System’s auto-generated
default certificate.
When you enable SSL, you must reboot the
Management Card in the Battery Management System master controller.
During rebooting, if no server certificate exists on the Management Card,
the Management Card generates a default server certificate that is self-
signed but that you cannot configure.
This method has the following advantages and disadvantages:
• Advantages:
– Before they are transmitted, the user name and password for
Battery Management System access and all data to and from the
Battery Management System are encrypted.
– You can use this default server certificate to provide encryption-
based security while you are setting up either of the other two digital
certificate options, or you can continue to use it for the benefits of
encryption that SSL provides.
• Disadvantages:
– The Management Card in the Battery Management System master
controller takes up to 5 minutes to create this certificate, and the
Web interface is not available during that time. (This delay occurs
the first time you log on after you enable SSL.)