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N75 EVK User Guide 

About  This  Document 

 

Copyright © Neoway Technology Co., Ltd 

 

Table 2-1 

Interfaces and button of N75 EVB 

No.

 

Interface/Button

 

Description

 

N75 

4G module 

PWRKEY button 

After  supplying  power  to  the  module,  hold  this  button  for  more 

than 1 second to start the module 

USB_BOOT button 

Force the module to enter download mode 

RESET_N button 

Hold this button for more than 1 second to reset the module 

High-level start pin 

To start the module by a high level 

USB port 

To download firmware or send AT command 

SIM connector 

Micro-SIM card 

5V DC power port 

Main power supply, ranging from 3.6V to 4.5V 

Power control switch 

To control the power supply 

10 

3.8V LDO regulator 

Level shift 

11 

3.3V LDO regulator 

Level shift 

12 

Indicators 

Power, ring, network 

13 

UART2   

Used to commission the module 

CANNOT be used to supply power 

14 

UART3 

Not supported 

15 

Antenna interfaces 

Diversity antenna connector, GPS antenna connector, 2G/3G/4G 

antenna connector

 

Содержание N75 EVK

Страница 1: ...EVK User Guide Issue 1 0 Date 2019 10 16...

Страница 2: ...S INSTRUCTIONS FOR CUSTOMERS TO DESIGN THEIR APPLICATIONS PLEASE FOLLOW THE RULES AND PARAMETERS IN THIS GUIDE TO DESIGN AND COMMISSION NEOWAY WILL NOT TAKE ANY RESPONSIBILITY OF BODILY HURT OR ASSET...

Страница 3: ...Neoway Technology Co Ltd ii Contents 1 Overview 1 2 About N75 EVB 2 3 Connection and Power 4 3 1 Micro_USB Cable 4 3 2 Power Supply 4 3 2 1 5V 3A Adapter 4 3 2 2 M5X0 PWR Board 5 4 Commissioning 7 4 1...

Страница 4: ...ory Issue Date Change Changed By 1 0 2019 10 Initial draft Bale Chang Conventions Symbol Indication This warning symbol means danger You are in a situation that could cause fatal device damage or even...

Страница 5: ...N75 EVK User Guide About This Document Copyright Neoway Technology Co Ltd iv Neoway_N75_HW_User_Guide Neoway_N75_AT_Command_Mannual...

Страница 6: ...interfaces one USB interface one SIM card interface antenna interfaces and one PWRKEY button Developers can connect it to a power supply and a computer through the USB cable or serial to USB cable to...

Страница 7: ...dware layout of the N75 EVB Figure 2 1 Top view of N75 EVB In Figure 2 1 each interface and keys of N75 is marked in red rectangles Read this user guide carefully before using N75 EVB If necessary ple...

Страница 8: ...han 1 second to reset the module 5 High level start pin To start the module by a high level 6 USB port To download firmware or send AT command 7 SIM connector Micro SIM card 8 5V DC power port Main po...

Страница 9: ...B or UART communication The USB interface of N75 EVB is used for communication only It cannot be used to supply power for the EVB Use a power adapter for power supply Figure 3 1 USB cable 3 2 Power Su...

Страница 10: ...another USB to UART cable board based on FT2232 CP210X and other chipsets M5X0 PWR is connected to the N75 EVB through 4 pin cables which have been soldered to the power board in a sequence of red bl...

Страница 11: ...hnology Co Ltd 6 3 8 V power supply It is not applicable to N21 EVB To use the UART function install the USB to UART driver PL2303 first If an MCU is used to control the module connect the as shown in...

Страница 12: ...and how to implement commissioning through either port 4 1 Through Serial Port Step 1 Use the 5V adapter to supply power power up the N75 EVB and connect it to the computer through the M5X0 PWR board...

Страница 13: ...chnology Co Ltd 8 Step 3 Start the Neo_ComTool and send AT commands 4 2 Through USB Port Perform the following steps to commission N75 through USB port Step 1 Use the 5V adapter to supply power power...

Страница 14: ...pyright Neoway Technology Co Ltd 9 Step 2 Update the N75 USB drivers on your computer If the computer runs Windows 8 or 10 disable driver signature enforcement before updating the USB drivers Step 3 S...

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