Which document lists the card as a target adapter? Can you please provide me with a link? That needs to be rectified.
2054A-R6 is an initiator, which services back-end disk, and is the correct card for your application. The target mode cards for these heads are 1128 or 1130 assuming FC. Those are the cards used to service host connections. When confused the System Configuration Guide, linked below, is considered the definitive source for this information.