The maintenance panel also provides access to the WLAN module as well as the UMTS module to a limited extent.

维护面板还提供了访问的WLAN模块，以及在有限的程度上的UMTS模块。

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For example, a device can switch transparently from GPRS on the road to a cheaper WLAN in an Internet cafe for network connectivity, depending on location input from a GPS module.

例如，根据GPS模块的定位输入，设备可以透明地将网络连接从路上的GPRS切换到网吧中更便宜的WLAN。

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The function of the USB module is to input some data from a USB mobile media where the signal of WLAN is not received.

考虑到有些场合没有无线网络的信号时，可以通过可移动USB介质导入一些静态数据到系统中；

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