What kind of IC is this - part two

[Alexandre Souza]

> I got another one - now with picture! ;)
> It is labeled
> DDU-4-
> 7992
> The picture can be seen here:
> http://pics.pofo.de/gallery/v/S8000/S8000_boards/P1070269.JPG.html
> Wild guessing.... resistornetwork? capacitornetwork (was something like
> that around?)?

    I'm pretty sure this is a delay line. Is this a XT board?