APC Battery Management System manual Choosing a method for your system, Advantages, Disadvantages

Battery Management System

USER’S GUIDE

®

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.)

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