Transall C-160 variant information

I am interested in pictures or tech specs for a maritime patrol variant of the Transall C-160, which I think was designated the C-160ASF. There was also an unarmed variant called the C-160AS(?). I have seen a few references on a French site and on another forum (Secret Projects) but never seen a picture or any really detailed specs. I vaguely recall some information in an old (15 years ago) aviation book. I think it had an under fuselage radome and extra pylons?

Anyway, if anyone has any information I would be keen to know more.