Patent ID: 8775789

Claim:
A multi-mode data card, comprising at least two mode modules, further comprising an external interface module and an interface control module, wherein: the external interface module connects to the interface control module, and the external interface module is configured to: connect to a computer for data interaction; the interface control module is equipped with at least two channels, and said at least two channels respectively connects to said at least two mode modules, and the interface control module is configured to: when the multi-mode data card is calibrated, connect the external interface module with the channel corresponding to the mode module to be calibrated, and switch the multi-mode data card to a mode to be calibrated; wherein, the interface control module further comprises a cascade interface sub-module; the cascade interface sub-module is configured to: when the multi-mode data card is in cascade, connect to the external interface module of another multi-mode data card.