User's Manual

L710HG EVB User Manual

2 Abstract

L710HG Evaluation Board (silkscreen L506_EVB ) Is specially designed for developing L710HG serial

module，To help developers to develop, debug, test L710HG series 4 GIoT LTE module. Below and mark

shows L710HG the main functions of the development board. In this article, we will in the subsequent

chapters on the function of each part is described.

Figure 2-1: L710HG EVB global graph

The above picture description:

1. The L710HG USB port is on the EPI board, not on the EVB.

The power switch S2. This switch S2 can switch the corresponding power input way, Choose an

external power adapter or direct bonding wire by external input 3.8 V dc power supply.

3. DB9 UART is serial port for module AT instruction, same as USB uart.

4. USB for Debug UART is used for user to retrieve the Debug information.

5. To facilitate the user's use, maintain a minimum system and we provide a power interface on the

L710HG EPI board.