APC Battery Management System User Manual download pdf (Page 127)

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.)

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APC Battery Management System User Manual Page 127