ADC SWD4573I1 Manuale Utente

Each Avidia line, channel, and management card ships with the necessary system files 
preinstalled in NVRAM (Non-Volatile Random Access Memory). 

To restore system files for a card, copy a complete set of system files from the Avidia 
MuxWare™ CD-ROM to that card. See 

 for 

command-line interface instructions or 

 for Web interface 

instructions.

Each card in the Avidia system contains its own image files, which are stored in NVRAM and 
have a .bin file name extension. Image files contain the firmware and software required to use 
the hardware on which they reside. When you boot the Avidia system, each card runs a 
bootstrap program that retrieves the image file out of NVRAM, decompresses it, then loads it 
into Random Access Memory (RAM). The firmware runs from RAM during system operation. 

All configuration information for the Avidia system is stored permanently in the management 
card NVRAM. There is a separate ASCII configuration file for each card. The files are named 
SnnCxxxx.cnf, where nn is the slot number and xxxx is the part number for that card. 

During system startup, each line card and channel card retrieves its configuration file from the 
management card and stores the information in RAM. If the management card is not installed, 
or is not functioning, the line cards and channel cards can not boot.

If you remove a line or channel card and replace it with a new card of the same type, the new 
card automatically loads the previous card’s configuration file from the management card into 
RAM. To configure the new card differently, use one of the management interfaces to delete the 
existing configuration then configure the card as desired. If you remove a line or channel card 
and replace it with a new card of a different type, the card will not load the previous 
configuration file.