Smart LTE Module Series
Smart EVB User Guide
Smart_ EVB_User_Guide
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Figure 14: Pin Assignment of SD Card Interface
3.6. USB Interface (J602)
The Smart EVB provides a Micro USB interface (J602), which complies with USB 2.0 specifications and
supports USB OTG function. This interface is used for AT command communication, data transmission
and firmware upgrade.
The reference circuit design for Micro USB interface is shown in the following figure and the pin
assignment of it is listed in the table below.