American Power Conversion AIRACPA4000 Manuale Utente

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To upgrade multiple Network Management Cards using an FTP client or 
using SCP, write a script which automatically performs the procedure. For 
FTP, use the steps in 

To use XMODEM to upgrade the firmware for a single Network 
Management Card that is not on the network:

1. Select a serial port at the local computer and disable any service which 

uses that port.

2. Connect the smart-signaling cable that came with the NetworkAIR PA 

Portable Air Conditioner to the selected port on your computer and to 
the serial port on the back of the NetworkAIR PA Portable Air 
Conditioner.

You cannot upgrade the AOS firmware module of any APC 
device directly from firmware version 1.x.x to 2.1.0 or later. 
The upgrade attempt will fail.

To upgrade the AOS firmware module of an APC device from 
version 1.x.x to 2.1.0 or later, first upgrade the module to 
firmware version 2.0.1. Then upgrade it again, this time from 
version 2.0.1 to the 2.x.x version you want.

If your APC device is running version 2.0.1 of the AOS 
firmware module already, you may upgrade directly to 
version 2.1.0 or a later version.