Doug,
I believe that it's suprapubic. Since the Indiana pouch will eventually hold a good amount, it needs to be "trained". So when a patient is discharged from the hospital, this drain allows urine to flow from the pouch for several weeks while it heals. After a few weeks, the drain will be removed and the patient will be able to catherize the pouch to drain the urine. The interval between each catherization is gradually increased to "train" the pouch to hold larger amounts of urine.
Since there's no permanent connection to an external bag with an Indiana, the suprapubic just provides a temporary method to drain urine until things have healed.
Hope this information answers your question, but if you want more information, just let us know.
Please keep us posted!
Ed K.