newbie:howto see my scsi cd reader

Hello
QNXrtp

How to see SCSI cd reader and cdwriter in the filesystem ?
I found an IDE cd on /fs/cd0
Are there a software to mount/unmount those scsi device?
I cannot see anything about my scsicard (tekram dc390 NCR…) in all
the configuration panels.
What the command line to mount and unmunt scsi devices ?

thanks olivier