Quectel BC95 Manuale utente

BC95 Power Consumption

Testing on EVB User Guide

NB-IoT Module Series

Rev. BC95_Power_Consumption_Testing_on_EVB_User_Guide_V1.0

Date: 2017-06-21

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NB-IoT Module Series

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About the Document

History

Revision

Date

Author

Description

1.0

2017-06-21

Ewent LU

Initial

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Contents

About the Document...................................................................................................................................2

Contents.......................................................................................................................................................3

Table Index...................................................................................................................................................4

Figure Index.................................................................................................................................................5

1Introduction..........................................................................................................................................6

2GSM EVB Modifications......................................................................................................................7

3PSM Power Consumption Testing Procedures................................................................................8

4Appendix A References.....................................................................................................................10

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Table Index

TABLE 1: RELATED DOCUMENTS.................................................................................................................. 10

TABLE 2: TERMS AND ABBREVIATIONS........................................................................................................ 10

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Figure Index

FIGURE 1: GSM EVB MODIFICATIONS DIAGRAM .......................................................................................... 7

FIGURE 2: GSM EVB CONNECTION DIAGRAM .............................................................................................. 8

FIGURE 3: DC POWERANALYZER AND GSM EVB CONNECTION DIAGRAM ............................................. 9

FIGURE 4: DISPLAY OF POWER CONSUMPTION DATA................................................................................ 9

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1Introduction

Quectel GSM EVB can be used for power consumption testing after modifications. This document mainly

introduces how to modify the GSM EVB to facilitate power consumption testing in power saving mode

(PSM) for Quectel NB-IoT BC95 series module, and to help customers obtain the accurate power

consumption data.

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2GSM EVB Modifications

In order to use the GSM EVB to test the power consumption of NB-IoT BC95 series module, following

modifications should be conducted:

1. Remove resistors on R101, R102 and R110 for an external power source to supply power to the

module independently;

2. Solder a 0R resistor on R224 for the 5V power adaptor to supply power for RS-232 level shifter IC

independently.

R101

R110

R224

R102

Figure 1: GSM EVB Modifications Diagram

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3PSM Power Consumption Testing

Procedures

Once the GSM EVB is modified, please follow the steps below to test the power consumption in PSM for

BC95 series module:

1. Connect BC95-TE-Ato 60-pin connector, and fix it with studs and nuts;

2. Insert a USIM card;

3. Connect the main and debug port to the PC respectively with USB to UART converter cables;

4. Regulate the output voltage to 3.6V on DC power analyzer, and connect the binding posts to J103

according to the negative and positive electrodes, to supply power for the module separately;

5. Connect the GSM EVB to the 5V power adaptor, and switch S202 to ON state;

6. Press ON button on DC power analyzer to turn on the power supply in “Power Supply Outputs”area

to test the power consumption of the module;

7. Send AT+NCONFIG=AUTOCONNECT,FALSE and AT+CFUN=0 commands to let the module enter

PSM. For details aboutAT commands, please refer to document [1].

USB to UART

Converter Cable

5V Power Supply

USB to UART

Converter Cable

USIM Card

RF Antenna

J103

S202

BC95-TE-A

Figure 2: GSM EVB Connection Diagram

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Figure 3: DC Power Analyzer and GSM EVB Connection Diagram

Figure 4: Display of Power Consumption Data

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