HUAWEI ME909 Series LTE LGA Module

 

Development Kit Guide

Interface Functions of the DVK

3 Interface Functions of the DVK

3.1 About This Chapter

This chapter describes interface functions, and interface usage of the DVK.

Interface Functions

3.2Interface Functions

3.2.1Power Switch and Power Supply Mode

Power can be supplied to the DVK in two modes: by a 5V AC-DC power adapter or the USB 5V power supply.

The jumper wire POWER-SWITCH is used to select a power supply mode. When pin1 and pin2 are connected, the USB 5V power supply is used; when pin2 and pin3 are connected, the 5V AC-DC power adapter is used. Only one mode can be selected at a same time. Once the development kit is powered on, the power indicator lights up.

Figure 3-1Power is supplied by the 5V AC-DC power adapter

Issue 01 (2013-02-08)

Huawei Proprietary and Confidential

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Huawei ME909 manual Interface Functions of the DVK, Power Switch and Power Supply Mode