ZyXEL Communications PLA-407 User Manual

Chapter 8 PLA Compatibility

PLA-407 User’s Guide

• For PLA v1 models (for example, PLA-400, PLA-401, PLA-470, PLA-491 and so 

on) upgrade the firmware version from 1.4.5 to at least version 3.0.5. Refer to 

the PLA-4XX series User’s Guide for instructions on how to do this.

• For PLA v2 models (for example, PLA400 v2, PLA402 v2, PLA401 v2, PLA470 v2 

and so on) make sure the firmware version is at least version 3.0.5. 

• For PLA v3 models (for example, PLA401 v3 and PLA402 v3) the factory default 

firmware version is 3.3.4. 

Note: You cannot downgrade the PLA-407’s firmware to a version earlier than 4.0.1. 

Use Configuration Utility version 3.3.4 to manage PLA v2 and PLA v1 models with 
firmware versions 3.0.5.

This diagram below shows a Powerline network where two PLAs have an earlier 
firmware (1.4.5) that cannot be managed by the 3.3.4 Configuration Utility. You 
should upgrade the firmware of these PLAs. 

Figure 51   Wrong Firmware in a Powerline Network