These were also to be found in Irish Universities where early networking was also X.25 based. I have a small stash of X.25 capable kit which I have no real interest in. It is available for free to anyone interested and is located in Dublin, Ireland. I would prefer collection but will consider shipping if someone is really keen. Among the bits and pieces are two Satelcom X.25 switches. Both are marked MegaPAC E but they are different sizes. Also a DEC DEMSA and two DEMSB X.25 routers (manufactured in DEC's former facility in Clonmel, Ireland) and some cables. And the connection with this thread? The DEMSA has a sticker on one of the ports which says "Camtec". Regards, Peter Coghlan.