Adaptable IC card radio modem

摘要

In an IC card or other radio modem 1 for a personal computer or similar data terminal, an interface section 2 includes a plurality of different communication interface circuits 30-1 to 30-n. When the modem is coupled to a data terminal via a PCMCIA interface connector 5, one of the interface circuits is selected which matches the communication access conditions of the data terminal. The interface circuit selected is connected to a radio modem section 4 also included in the modem 1. Thus the modem is connectable to various kinds of data terminals.