Device device access system, and a communication establishing method

Access device (1) capable of communicating with the device apparatus via a wireless communication (2) is provided. Device device (2) is connectable to at least one additional device (27). Device device (2), before establishing the communication between the access device (1) device unit (2), by performing an initialization process of the additional device (27), the characteristic information of the additional devices (27) an access control unit for acquiring from the additional device (27) (203), a memory (211) for holding the acquired characteristic information, the communication unit for transmitting and receiving data between the access device (1) and (25), during the establishment of communication with the access device by the communication unit (25) (1), without initialization of additional devices (27), characteristic information access device (1) is held in the memory (211) and a communication control unit for transmitting (201) a.