Ebyte E90-DTU 400SL30-GPRS User Manual page 10

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whether the serial driver is installed correctly.
2. Open the officially provided E90-DTU (400SL30-GPRS) configuration tool. If the USB is correctly connected, the
message box on the right side will prompt "device ready".
3. After entering the GPRS/2G network pass-through configuration mode, the parameters of GPRS/2G module can be
configured in the "setting relevant parameters" box. After the configuration is completed, click the "save NET
parameters" button, and the upper computer will prompt "save all parameters successfully". After completion, as
shown in the following figure:
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E90-DTU (400SL30-GPRS) user manual
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