Patent ID: 8244302

Claim:
A radio base station device having a data card in which subscriber identification information is stored, and a card insertion portion into which said data card is inserted, for carrying out radio communications by using the subscriber identification information read from said data card, wherein said radio base station device comprises: a cover slidably mounted to said radio base station device, for covering said card insertion portion; and a power supply switching unit disposed in a direction in which said cover slides, for enabling power to be supplied to said radio base station device when the power supply switching unit is placed at a position at which said power supply switching unit is projecting from a surface of the radio base station device, and for disabling the power to be supplied to said radio base station device when the power supply switching unit is placed at a position at which the power supply switching unit is not projecting from the surface, wherein in a power on state, said power supply switching unit placed at the position at which said power supply switching unit is projecting from the surface restricts the sliding movement of said cover to disable said data card to be extracted and inserted from and into said radio base station device.