Akai S1000 / S1100 samplers

Hi

I have found, that my "new" S1000HD is fully expanded (32MB RAM, SCSI card, HD, Digital I/O card).

I have a problem with digital I/O card....It is very strange, but it doesn't have optical input port and it has a strange "main board" name: S1000 Degital I/O.....

Is it normal? I think it should be S1000 Digital I/O instead of Degital.....I saw other card pictures on internet and there is 2 ports....

I'm posting a picture here to see what I'm talking about....

http://groups.yahoo.com/group/akaiS1000S1100Samplers/photos/album/294378582/pic/1111490082/view

thanks