Quectel BC95-GR-TE-B User manual

BC95-GR-TE-B

User Guide

NB-IoT Module Series

Version: 1.0

Date: 2020-11-17

Status: Released

www.quectel.com

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Our aim is to provide customers with timely and comprehensive service. For any assistance,

please contact our company headquarters:

Quectel Wireless Solutions Co., Ltd.

Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District, Shanghai

200233, China

Tel: +86 21 5108 6236

Email: info@quectel.com

Or our local office. For more information, please visit:

http://www.quectel.com/support/sales.htm.

For technical support, or to report documentation errors, please visit:

http://www.quectel.com/support/technical.htm

Or email to support@quectel.com.

General Notes

Quectel offers the information as a service to its customers. The information provided is based upon

customers’ requirements. Quectel makes every effort to ensure the quality of the information it makes

available. Quectel does not make any warranty as to the information contained herein, and does not

accept any liability for any injury, loss or damage of any kind incurred by use of or reliance upon the

information. All information supplied herein is subject to change without prior notice.

Disclaimer

While Quectel has made efforts to ensure that the functions and features under development are free

from errors, it is possible that these functions and features could contain errors, inaccuracies and

omissions. Unless otherwise provided by valid agreement, Quectel makes no warranties of any kind,

implied or express, with respect to the use of features and functions under development. To the maximum

extent permitted by law, Quectel excludes all liability for any loss or damage suffered in connection with

the use of the functions and features under development, regardless of whether such loss or damage

may have been foreseeable.

Duty of Confidentiality

The Receiving Party shall keep confidential all documentation and information provided by Quectel,

except when the specific permission has been granted by Quectel. The Receiving Party shall not access

or use Quectel’s documentation and information for any purpose except as expressly provided herein.

Furthermore, the Receiving Party shall not disclose any of the Quectel's documentation and information

to any third party without the prior written consent by Quectel. For any noncompliance to the above

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Quectel will reserve the right to take legal action.

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The information contained here is proprietary technical information of Quectel wireless solutions co., ltd.

Transmitting, reproducing, disseminating and editing this document as well as using the content without

permission are forbidden. Offenders will be held liable for payment of damages. All rights are reserved in

the event of a patent grant or registration of a utility model or design.

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About the Document

Revision History

Version

Date

Author

Description

2020-11-10

Glenn GE/

Jerry WANG

Creation of the document

1.0

2020-11-17

Glenn GE/

Jerry WANG

First official release

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Contents 
About the Document...................................................................................................................................3 
Contents.......................................................................................................................................................4 
Table Index...................................................................................................................................................5 
Figure Index.................................................................................................................................................6 
1Introduction..........................................................................................................................................7 
1.1. Safety Information......................................................................................................................8 
2Product Concept..................................................................................................................................9 
2.1. Key Features .............................................................................................................................9 
2.2. Functional Diagram.................................................................................................................. 11 
2.3. Interface Distribution Diagram.................................................................................................12 
2.4. Arduino Interface Definition.....................................................................................................14
3Operation Procedures.......................................................................................................................15 
3.1. Operation Procedures with Single Board................................................................................15 
3.1.1. Interface Diagram...........................................................................................................15
3.1.2. Operation Procedures....................................................................................................16
3.2. Operation Procedures with Multi-boards.................................................................................17 
3.2.1. Interface Diagram...........................................................................................................17
3.2.2. Operation Procedures....................................................................................................19
3.2.3. Description of Pin Connection........................................................................................19 
4Electrical Performance & Reliability................................................................................................21 
4.1. Absolute Maximum Ratings.....................................................................................................21
4.2. Operating and Storage Temperatures.....................................................................................21 
5Mechanical Dimensions....................................................................................................................23 
5.1. Mechanical Dimensions of BC95-GR-TE-B............................................................................23
5.2. Top and Bottom Views of BC95-GR-TE-B...............................................................................24 
6BC95-GR-TE-B Kit and Accessories................................................................................................25 
6.1. BC95-GR-TE-B Kit...................................................................................................................25
6.2. BC95-GR-TE-B Kit Accessories..............................................................................................26 
7Appendix References........................................................................................................................27 
 
 
 

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Table Index

Table 1: Key Features of BC95-GR-TE-B.................................................................................................... 9

Table 2: Interfaces of BC95-GR-TE-B........................................................................................................12

Table 3: Pin Connection Between BC95-GR-TE-B and STM32-L476RG MCU........................................19

Table 4: Absolute Maximum Ratings..........................................................................................................21

Table 5: Operating and Storage Temperatures..........................................................................................21

Table 6: Accessories List............................................................................................................................26

Table 7: Related Document........................................................................................................................27

Table 8: Terms and Abbreviations..............................................................................................................27

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Figure Index 
Figure 1: Functional Diagram of BC95-GR-TE-B .......................................................................................11 
Figure 2: Interface Distribution Diagram of BC95-GR-TE-B......................................................................12
Figure 3: Arduino Interface Definition.........................................................................................................14 
Figure 4: Interface Diagram of Using BC95-GR-TE-BAlone.....................................................................15 
Figure 5: UART Ports Displayed on PC.....................................................................................................16 
Figure 6: Interface Diagram of Using Multi-boards....................................................................................17 
Figure 7: STM32 Nucleo-64 Interface Diagram (Top View).......................................................................18 
Figure 8: STM32 Nucleo-64 Modification Diagram (Bottom View)............................................................18 
Figure 9: ST-LINK Interface Displayed on PC...........................................................................................19 
Figure 10: Pin Connection Between BC95-GR-TE-B and STM32-L476RG MCU....................................20 
Figure 11: Dimensions of BC95-GR-TE-B (Top View)...............................................................................23
Figure 12: Top View of BC95-GR-TE-B.....................................................................................................24
Figure 13: Bottom View of BC95-GR-TE-B................................................................................................24 
Figure 14: BC95-GR-TE-B Kit Assembly...................................................................................................25 
Figure 15: BC95-GR-TE-B and Accessories .............................................................................................26
 
 
 
 
 
 
 
 

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1Introduction

To help you develop applications with Quectel BC95-GR module conveniently, Quectel supplies a

corresponding development board (BC95-GR-TE-B) to test the module. This document helps you quickly

understand BC95-GR-TE-B interface specifications, electrical and mechanical details and know how to

use it.

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1.1. Safety Information

The following safety precautions must be observed during all phases of operation, such as usage, service

or repair of any cellular terminal or mobile incorporating the module. Manufacturers of the cellular terminal

should notify users and operating personnel of the following safety information by incorporating these

guidelines into all manuals of the product. Otherwise, Quectel assumes no liability for customers’ failure to

comply with these precautions.

Full attention must be paid to driving at all times in order to reduce the risk of an

accident. Using a mobile while driving (even with a handsfree kit) causes

distraction and can lead to an accident. Please comply with laws and regulations

restricting the use of wireless devices while driving.

Switch off the cellular terminal or mobile before boarding an aircraft. The operation

of wireless appliances in an aircraft is forbidden to prevent interference with

communication systems. If there is an Airplane Mode, it should be enabled prior to

boarding an aircraft. Please consult the airline staff for more restrictions on the use

of wireless devices on an aircraft.

Wireless devices may cause interference on sensitive medical equipment, so

please be aware of the restrictions on the use of wireless devices when in

hospitals, clinics or other healthcare facilities.

Cellular terminals or mobiles operating over radio signal and cellular network

cannot be guaranteed to connect in certain conditions, such as when the mobile bill

is unpaid or the (U)SIM card is invalid. When emergency help is needed in such

conditions, use emergency call if the device supports it. In order to make or receive

a call, the cellular terminal or mobile must be switched on in a service area with

adequate cellular signal strength. In an emergency, the device with emergency call

function cannot be used as the only contact method considering network

connection cannot be guaranteed under all circumstances.

The cellular terminal or mobile contains a transceiver. When it is ON, it receives

and transmits radio frequency signals. RF interference can occur if it is used close

to TV sets, radios, computers or other electric equipment.

In locations with explosive or potentially explosive atmospheres, obey all posted

signs and turn off wireless devices such as mobile phone or other cellular

terminals. Areas with explosive or potentially explosive atmospheres include

fuelling areas, below decks on boats, fuel or chemical transfer or storage facilities,

and areas where the air contains chemicals or particles such as grain, dust or

metal powders.

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2Product Concept

BC95-GR-TE-B is an NB-IoT development board which supports Arduino interfaces. Designed in

70.0 mm × 74.0 mm × 1.6 mm form factor, BC95-GR-TE-B can be used to develop and debug

applications which communicate with mobile network operators’ infrastructure equipment through NB-IoT

radio protocols (3GPP Rel-13 and Rel-14).

2.1. Key Features

Table 1: Key Features of BC95-GR-TE-B

Features

Details

Power Supply

USB interface:

Supply voltage: 4.75-5.25 V

Typical supply voltage: 5.0 V

Arduino interface:

Supply voltage: 4.75-5.25 V

Typical supply voltage: 5.0 V

External power supply interface:

Supply voltage: 5.0 V

Transmitting Power

23 dBm ±2 dB

Temperature Range

⚫Operating temperature: -25 °C to +75 °C 1)

⚫Extended temperature: -40 °C to +85 °C 2)

⚫Storage temperature: -40 °C to +90 °C

USIM Interface

Supports 1.8/3.0 V external USIM card

UART Switch

Switches communication objects of the main UART of the BC95-GR

module

USB-UART Interface

Currently supports two UART ports:

Main UART (USB Serial Converter A):

⚫Transmits data (including AT commands)

⚫The default baud rate is 9600 bps

Debug UART (USB Serial Converter C):

⚫Obtains underlying logs through software debugging with

CoolWatcher, a debugging tool

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