Most electronic equipments operate with the help of a micro-computer which orchestrates the runnin operation. Micro-computer execute instructions or a program which is called the firmware for embedded systems. A firmware version is usually stable when the product hits the market (unlike computer programs sold by larger corporations) but it is still desirable to be able to upgrade it would it only be to support new standards not in place at the time the product was developped. This explains why most electronic equipment today operate based on a micro-computer - for upgradability.
The Odéon-Ag employs a DSP which processes the digital data, supervises the conversion process and handles the user interface (buttons, remote control, etc). Here is the detail of the software revision since the product hit the market and how to recognize them.

 
Revision 1.0

Version 1.0 is the initial shipped. There are about 200 units out with this version. It is very stable and funcional. The animation below illustrates how an Odéon-Ag running version 1.0 identifies itself upon powerup; in this example it is connected to a CD 44.1KHz source on input 1.

Odéon-Ag original
 



Notice how the Power LED doesn't go off during the LED's test.

 
Revision 1.1

While version 1.0 supports the re-clocker board upgrade, it does not acknowledges it's presence in any visual way. Version 1.1 of the firmware changed the LED blinking pattern upon power-up allowing the user to see at a glance if the unit is stock basic unit or if it was upgraded with a re-clocker board. The two animations below illustrate how an Odéon-Ag with the Re-Clocker board upgrade installed and an Odéon-Ag stock without options.

Odéon-Ag with re-Clocker option
 



Notice how the Power LED flashes once along with 48KHz LED before the unit goes into function

Odéon-Ag without options
 



Notice how the 48KHz LED does not flash with the power LED