Chengdu Ebyte Electronic Technology Co,;Ltd
E90-DTU (900SL30-GPRS) user manual
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd
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2 Quick start
2.1 Hardware preparation and communication testing
Before the test, connect the power supply, USB cable, SIM card (insert the gap outwards), antenna and other
hardware according to the recommended circuit. If the power cable is successfully connected, the PWR indicator will
always be on.
E90-DTU (900SL30- GPRS) device and E22-900TXXS module
5V—20V Power adapter
USB switch to TTL module and USB wire
GPRS/LTE Sucker antenna
Computer browser visit Chengdu Ebyte official website:
, download the latest E90-DTU
(900SL30-GPRS) series product configuration tools, E22 series product configuration software and serial
assistant (this article USES XCOM), install USB 232/485 driver, run the software!
1. After connecting the E22-900TXXS module with the USB-to TTL module, open the officially provided E22
configuration tool and select the corresponding COM number. If the COM number cannot be selected, check
whether the serial driver is installed correctly.
Summary of Contents for 900SL30-GPRS
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