| 摘要 |
A radio base station device (1) is provided with a USIM card (2), a card insertion portion (3) into which the USIM card (2) is inserted, a cover (4) slidably disposed for covering the card insertion portion (3), and an adapter connecting unit (5) and a power supply adapter (6) for turning on and off the radio base station device. When the radio base station device is placed in a power on state in which the power supply adapter (6) is connected to the adapter connecting unit (5), the power supply adapter (6) restricts the sliding movement of the cover (4), and therefore the card insertion portion (3) cannot be exposed and the USIM card (2) cannot be extracted and inserted from and into the radio base station device. In contrast, when the radio base station device is placed in a power off state in which the power supply adapter (6) is detached, the card insertion portion (3) can be exposed by sliding the cover (4), and therefore the USIM card (2) can be extracted and inserted from and into the radio base station device. |
