ZyXEL PLA-401 Series User Guide - Page 39
Utility if you do so, as older version utilities are not compatible with PLA-401
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Chapter 5 The Configuration Utility Firmware is the software which is embedded in the PLA-401 Series. This software contains processing instructions for how the PLA-401 Series sends and receives information in a secure way. Parameter Information Block (PIB) is similar to firmware. It contains the most basic operating instructions for the PLA-401 Series such as how to power up and how to load the firmware. You can check the ZyXEL website for firmware upgrades for your PLA-401 Series. Note: To upgrade to the latest firmware, use the firmware upgrade tool available from the ZyXEL website (www.zyxel.com), or from the CD included with your PLA401 Series. Make sure you also upgrade the PLA-4xx Series Configuration Utility if you do so, as older version utilities are not compatible with PLA-401 Seriess using the latest firmware. Note: Be sure to upload the correct model firmware as uploading the wrong model firmware may damage your device. Figure 16 Firmware Screen PLA-401 Series User's Guide 39