Neoway N25 User guide

Type
User guide
Hardware User Guide
Issue 1.3 Date 2020-09-18
N25 Hardware User Guide
Copyright
Copyright © Neoway Technology Co., Ltd
i
Copyright © Neoway Technology Co., Ltd 2020. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written
consent of Neoway Technology Co., Ltd.
is the trademark of Neoway Technology Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
This document provides guide for users to use N25.
This document is intended for system engineers (SEs), development engineers, and test engineers.
THIS GUIDE PROVIDES 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 LOSS CAUSED BY
IMPROPER OPERATIONS.
THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE DUE TO
PRODUCT VERSION UPDATE OR OTHER REASONS.
EVERY EFFORT HAS BEEN MADE IN PREPARATION OF THIS DOCUMENT TO ENSURE ACCURACY
OF THE CONTENTS, BUT ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS
DOCUMENT DO NOT CONSTITUTE A WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.
Neoway provides customers complete technical support. If you have any question, please contact your
account manager or email to the following email addresses:
Website: http://www.neoway.com
N25 Hardware User Guide
Contents
Copyright © Neoway Technology Co., Ltd
ii
Contents
1 About N25 .................................................................................................. 1
1.1 Product Overview ......................................................................................................................... 1
1.2 Block Diagram .............................................................................................................................. 1
1.3 Basic Features ............................................................................................................................. 2
2 Module Pins ............................................................................................... 4
2.1 Pad Layout ................................................................................................................................... 4
2.2 Pin Description ............................................................................................................................. 5
3 Application Interfaces ................................................................................ 8
3.1 Power Supply ............................................................................................................................... 8
3.1.1 VBAT .................................................................................................................................... 8
3.1.2 VDD_2P8 ............................................................................................................................ 11
3.1.3 VRTC .................................................................................................................................. 11
3.2 Control Interfaces ........................................................................................................................ 11
3.2.1 PWRKEY_N ....................................................................................................................... 11
3.2.2 RESET_N .......................................................................................................................... 14
3.3 Peripheral Interfaces .................................................................................................................. 15
3.3.1 UART ................................................................................................................................. 15
3.3.2 USIM .................................................................................................................................. 18
3.3.3 ADC ................................................................................................................................... 19
3.4 RF Interface ................................................................................................................................ 20
3.4.1 Antenna Design ................................................................................................................. 20
3.4.2 Antenna Assembling .......................................................................................................... 22
3.5 GPIO .......................................................................................................................................... 23
3.6 Other Interfaces ......................................................................................................................... 23
3.6.1 WAKEUP_IN...................................................................................................................... 23
3.6.2 WAKEUP_OUT ................................................................................................................. 24
3.6.3 STATUS ............................................................................................................................. 24
4 Electric Feature and Reliability ................................................................ 25
4.1 Nominal Values .......................................................................................................................... 25
4.2 Current Features ........................................................................................................................ 25
4.3 Temperature Feature .................................................................................................................. 26
4.4 ESD Protection ........................................................................................................................... 26
5 RF Features ............................................................................................. 27
5.1 Operating Bands ........................................................................................................................ 27
5.2 TX Power and RX Sensitivity ..................................................................................................... 27
6 Mechanical Features ............................................................................... 29
6.1 Dimensions ................................................................................................................................. 29
6.2 Label ........................................................................................................................................... 29
6.3 Package ..................................................................................................................................... 30
N25 Hardware User Guide
Contents
Copyright © Neoway Technology Co., Ltd
iii
6.3.1 Tape & Reel Packaging ..................................................................................................... 30
6.3.2 Moisture-Sensitive ............................................................................................................. 32
7 Mounting N25 onto Application Board ..................................................... 33
7.1 Bottom Dimensions .................................................................................................................... 33
7.2 Application Foot Print ................................................................................................................. 34
7.3 Stencil ......................................................................................................................................... 34
7.4 Solder Paste ............................................................................................................................... 34
7.5 SMT Profile ................................................................................................................................. 35
8 Safety Recommendations ....................................................................... 37
Conformity and Compliance .................................................................... 38
A.1 Approvals ................................................................................................................................... 38
A.2 Chinese Notice........................................................................................................................... 38
A.2.1 CCC Class A Digital Device Notice ................................................................................... 38
A.2.2 Environmental Protection Notice ....................................................................................... 38
Abbreviation ............................................................................................ 39
N25 Hardware User Guide
Table of Figures
Copyright © Neoway Technology Co., Ltd
iv
Table of Figures
Figure 1-1 Block diagram ................................................................................................................... 2
Figure 2-1 Pin definition of N25 .......................................................................................................... 4
Figure 3-1 Recommended circuit design 1 ........................................................................................ 9
Figure 3-2 Recommended schematic design 2 ................................................................................. 9
Figure 3-3 Reference design of startup controlled by button ............................................................ 11
Figure 3-4 Reference design of startup controlled by MCU ............................................................. 12
Figure 3-5 Reference design of automatic start once powered up .................................................. 12
Figure 3-6 Startup timing .................................................................................................................. 13
Figure 3-7 Shutdown timing ............................................................................................................. 13
Figure 3-8 Reset controlled by button .............................................................................................. 14
Figure 3-9 Reset circuit with triode separating ................................................................................. 14
Figure 3-10 Reset timing of N25 ...................................................................................................... 15
Figure 3-11 UART connection .......................................................................................................... 16
Figure 3-12 Recommended level shifting circuit 1 ........................................................................... 16
Figure 3-13 Recommended level shifting circuit 2 ........................................................................... 17
Figure 3-14 Recommended level shifting circuit 3 ........................................................................... 18
Figure 3-15 Reference design of USIM card interface ..................................................................... 19
Figure 3-16 L network ...................................................................................................................... 20
Figure 3-17 T network ...................................................................................................................... 20
Figure 3-18 Pi network ..................................................................................................................... 21
Figure 3-19 Recommended RF PCB design ................................................................................... 21
Figure 3-20 Specifications of MM9329-2700RA1 ............................................................................ 22
Figure 3-21 RF connections ............................................................................................................. 22
Figure 3-22 Reference design of WAKEUP ..................................................................................... 23
Figure 3-23 Driving LED with a triode .............................................................................................. 24
Figure 6-1 N25 dimensions (Unit: mm) ............................................................................................ 29
Figure 6-2 N25 Label ....................................................................................................................... 30
N25 Hardware User Guide
Table of Figures
Copyright © Neoway Technology Co., Ltd
v
Figure 7-1 N25 bottom dimensions (Unit: mm) ................................................................................ 33
Figure 7-2 Recommended PCB foot print (Unit: mm) ...................................................................... 34
Figure 7-3 SMT furnace temperature curve ..................................................................................... 35
N25 Hardware User Guide
Table of Tables
Copyright © Neoway Technology Co., Ltd
vi
Table of Tables
Table 1-1 Variants and bands ............................................................................................................. 1
Table 2-1 IO definition ........................................................................................................................ 5
Table 2-2 Pin Description ................................................................................................................... 5
Table 4-1 Operating conditions of N25 ............................................................................................. 25
Table 4-2 Current consumption of N25 (Typical) .............................................................................. 25
Table 4-3 Temperature features of N25 ............................................................................................ 26
Table 4-4 N25 ESD protection .......................................................................................................... 26
Table 5-1 Operating bands of N25 ................................................................................................... 27
Table 5-2 RF TX power of N25 ......................................................................................................... 27
Table 5-3 RX sensitivity of N25 Cat NB1/Cat NB2 ........................................................................... 28
N25 Hardware User Guide
About This Document
Copyright © Neoway Technology Co., Ltd
vii
About This Document
Scope
This document is applicable to N25 series.
It defines the features, indicators, and test standards of the N25 module and provides reference for the
hardware design of each interface.
Reference designs in this document are only for reference. Design applications based on the actual
scenarios and conditions. Please contact Neoway technical support team for further technical support.
Audience
This document is intended for system engineers (SEs), development engineers, and test engineers.
Change History
Issue
Date
Changed By
1.0
2019-02
Huang Jianlong
1.1
2019-04
Huang Jianlong
1.2
2020-02
Zhao Rongzhou
1.3
2020-05
Zhao Rongzhou.
N25 Hardware User Guide
About This Document
Copyright © Neoway Technology Co., Ltd
viii
Conventions
Symbol
Indication
This warning symbol means danger. You are in a situation that could cause fatal
device damage or even bodily damage.
Means reader be careful. In this situation, you might perform an action that could
result in module or product damages.
Means note or tips for readers to use the module
Related Documents
Neoway_N25_Datasheet
Neoway_N25_Product_Specifications
Neoway_N25_AT_Command_Mannual
Neoway_N25_EVK_User_Guide
N25 Hardware User Guide
Chapter 1 About N25
Copyright © Neoway Technology Co., Ltd
1
1 About N25
N25 is an industrial-grade NB-IoT plus GPRS module. This chapter provides a basic introduction about
its variants and bands, block diagram, and features.
1.1 Product Overview
N25 series include multiple variants. Table 1-1 lists the variants and bands supported.
Table 1-1 Variants and bands
Model
Variant
Network Type
Band
N25
N25-CN-011AS1
Cat NB/GPRS
Cat NB1/Cat NB2: HD-FDD: B3, B5, B8
GPRS: 900/1800MHz
N25-EU-011AS1
Cat NB/GPRS
Cat NB1/Cat NB2: HD-FDD: B3, B5, B8, B20, B28
GPRS: 850/900/1800/1900MHz
Featured with ultra-low power consumption, extensive coverage and simple peripheral circuits, N25 is
well applicable to IoT applications that requires low data rate and low power consumption. It adopts
52-pin LGA package and its dimensions are 24 mm x 20 mm x 2.45 mm, which can meet the comact
product design requirement .
It provides the following hardware resources and functionalities:
UART interfaces, used for data communication, firmware update, and commissioning
Compatibility with 1.8 V/3.0V USIM card
STATUS (working status) /WAKEUP_IN (PSM wakeup) /RESET_N/ADC
1.2 Block Diagram
N25 consists of the following functionality modules:
Power management unit
Clock unit
Digital interfaces (USIM, UART)
N25 Hardware User Guide
Chapter 1 About N25
Copyright © Neoway Technology Co., Ltd
2
Analog interface (ADC)
RF section
Figure 1-1 Block diagram
1.3 Basic Features
Parameter
Description
Physical features
Dimensions: (24.0±0.10) mm × (20±0.10) mm × (2.45±0.10) mm
Package: 52-pin LGA
Weight: around 1.8 g
Temperature ranges
Operating: -40°C to +85°C
Storage: -45°C to +90°C
Operating voltage
VBAT: 3.4V to 4.3V, TYP: 3.8V
MIPS processor
Main frequency: 192 MHz, 16KB L2 cache
Memory
RAM: 32 Mb
ANT
Power
Manager
Flash Analog
Baseband Digital
Baseband
RF Front-end-module 26MHz
Crystal
Digital Iterface
USIM UART
SIM
VBAT
RF transceiver
32.768
KHz
Crystal
RESET_N
PWRKEY_N
ADC
ADC0
N25 Hardware User Guide
Chapter 1 About N25
Copyright © Neoway Technology Co., Ltd
3
ROM: 32 Mb
Band
B3, B5, B8, B20, B28
Wireless rate
LTE Cat NB1: 26 Kbps (DL) /62.5 Kbps (UL)
LTE Cat NB2: 127 Kbps (DL)/158.5 Kbps (UL)
GPRS: 85.6 Kbps (DL/UL)
Transmit power
LTE: +23 dBm+/-2 dBm (Power Class 3)
GPSR 850/900: 33 dBm+/-2dB
GPSR 1800/1900: 30 dBm+/-2dB
Application interfaces
4G antenna, 50 Ω characteristic impedance
1 UART interface with hardware flow control, used to send AT commands
1 USIM interface, compatible with 1.8V/3V USIM card
1 ADC interface
2*2 mm eSIM (Optional)
AT commands
3GPP Rel-13
3GPP Rel-14
Neoway extended commands
SMS
TEXT/PDU Point to Point/Cell Broadcast
Cloud platform
China Mobile OneNet, China Telecom IoT Cloud, Huawei OceanConnect
Protocol
TCP/IP, PPP, UDP, HTTP, HTTPS, FTP, LWM2M, CoAP, DTLS, SMS
Certificates and
Approvals
CCC*, SRRC*, RoHS*
China Mobile
* indicates in development
N25 Hardware User Guide
Chapter 2 Module Pins
Copyright © Neoway Technology Co., Ltd
4
2 Module Pins
There are 52 pins on N25 and their pads are introduced in LGA package.
2.1 Pad Layout
Figure 2-1 shows the pad layout of N25.
Figure 2-1 Pin definition of N25
N25
Top View
26
25
24
23
22
21
20
19
18
16
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
27
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
51
50
52
28
USIM_DET
ANT
ANT_BT
GND
GND
GND
GND
GND
GND
GND
VBAT
VBAT
VRTC
USIM_GND
USIM_CLK
USIM_DATA
USIM_RESET
USIM_VCC
RESERVED
RESERVED
RESERVED
RESERVED
UART1_RTS
UART1_CTS
UART1_RXD
UART1_TXD
RESERVED
RESERVED
RESERVED
GND
ADC0
GND
NET_LIGHT
GPIO1
GPIO2
GPIO3
WAKEUP_OUT
RESET_N
WAKEUP_IN
PWRKEY_N
STATUS
RESERVED
VDD_2P8
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
DWBUG_UART_TXD
DWBUG_UART_RXD
N25 Hardware User Guide
Chapter 2 Module Pins
Copyright © Neoway Technology Co., Ltd
5
2.2 Pin Description
Table 2-1 lists the definition of IO types.
Table 2-1 IO definition
IO Type
DO
Digital output, COMS logic level
DI
Digital input, COMS logic level
PO
Power output
PI
Power input
AO
Analog output
AI
Analog input
Level Feature
P1
1.8V/3.0V dual-voltage SIM
interface
1.8 V level feature:
VIH=1.26V~1.8V
VIL=-0.3V~0.36V
VOH=1.44V~1.8V
VOL=0V~0.4V
3.0 V level feature:
VIH=2V~3V
VIL=-0.3V~0.57V
VOH=2.28V~3V
VOL=0V~0.4V
P2
2.8V digital IO
VIH =2.1V~2.8V, VIL = 0V~0.7V
VOH=2.1~2.8V, VOL=0V~0.7V
P3
1.1V of V_RTC power domain
VIH min=0.83V VIH max= 1.41V
VIL min=-0.3V VIL max= 0.36V
Table 2-2 Pin Description
Signal
Pin
I/O
Function
Level
Remarks
Power Supply Pins
VBAT
16,
17
PI
Main power
input
Vmax=4.3V
VRTC
15
PI
RTC backup
input
Vmax=1.4V
Leave this pin floating if it is
not used.
VDD_2P8
41
PO
2.8V power
output
Vnorm=2.8V
Imax=50mA
Used only for level shifting.
Leave this pin floating if it is
not used.
GND
13, 18, 19, 20, 21, 23, 24, 26, 30, 32
Ensure that all GND pins are
connected to the ground.
N25 Hardware User Guide
Chapter 2 Module Pins
Copyright © Neoway Technology Co., Ltd
6
Control Interfaces
RESET_N
38
DI
Reset input
P3
Triggered by low level
PWRKEY_N
40
DI
ON/OFF button
P3
Triggered by low level to start
or shut down the module
UART Interface
UART1_TXD
1
DO
Data
transmitting
P2
Used for data transmission.
Leave these pins floating if
they are not used.
UART1_RXD
2
DI
Data receiving
P2
UART1_CTS
3
DI
Clear to send
P2
UART1_RTS
4
DO
Request to
send
P2
DEBUG_UART Interface
DEBUG_UART_TXD
51
DO
Data
transmitting
P2
Used for commissioning.
Leave these pins floating if
they are not used.
DEBUG_UART_RXD
52
DI
Data receiving
P2
USIM interface
USIM_VCC
9
PO
USIM power
output
IOmax =50mA
USIM_VCC
USIM_RESET
10
DO
USIM reset
P1
USIM_DATA
11
DIO
USIM data IO
P1
USIM_CLK
12
DO
USIM clock
P1
USIM_DET
14
DI
USIM card
presence
detect
P2
ADC interface
ADC0
31
AI
ADC input
Leave this pin floating if it is
not used.
Max input 1.8V
Antenna Interface
ANT
25
AI/O
Antenna
50 Ω impedance for traces
ANT_BT
22
AI/O
BT/Wi-Fi
antenna
50 Ω impedance for traces
Others
WAKEUP_OUT
37
DO
Wake up MCU
P2
Leave this pin floating if it is
not used.
N25 Hardware User Guide
Chapter 2 Module Pins
Copyright © Neoway Technology Co., Ltd
7
WAKEUP_IN
39
DI
PSM wakeup
input
P3
Input high level for 1 second
at this pin and the module
wakes up.
STATUS
42
DO
Power status
indicator
P2
Leave this pin floating if it is
not used.
NET_LIGHT
33
DO
Network status
indicator
P2
Leave this pin floating if it is
not used.
GPIO_1
34
IO
GPIO
P2
Leave this pin floating if it is
not used.
GPIO_2
35
IO
GPIO
P2
Leave this pin floating if it is
not used.
GPIO_3
36
IO
GPIO
P2
Leave this pin floating if it is
not used.
Reserved Pins
RESERVED
5, 6, 7, 8, 27, 28, 29, 43, 44, 45, 46, 47, 48,
49, 50
Leave these pins floating. Do
not connect them to ground
or power supply.
N25 Hardware User Guide
Chapter 3 Application Interfaces
Copyright © Neoway Technology Co., Ltd
8
3 Application Interfaces
N25 provides power supply, communications, RF, and other interfaces to meet customers requirements
in different application scenarios.
This chapter describes how to design each interface and provides reference designs and guidelines.
3.1 Power Supply
The schematic design and PCB layout of the power supply are the most critical part in application
design and they determine the performance of the final product. Please read the guidelines to design
power supply and comply with the correct design principles to obtain the optimal circuit performance.
Signal
Pin
I/O
Function
Remarks
VBAT
16, 17
PI
Main power input
3.4V to 4.3V (TYP: 3.8V)
VDD_2P8
41
PO
2.8V power output
Output max. 50 mA, used only for level shifting.
Add ESD protector when using this pin.
GND
13, 18, 19, 20, 21, 23, 24, 26, 30, 32
Connect all GND pins to the ground plane.
3.1.1 VBAT
The power supply design consists of two parts: schematic design and PCB layout.
Schematic Design
N25 adopts a 3.4V-4.3V voltage input supplied by a battery and the typical voltage is 3.8V. Figure 3-1
shows the schematic design of N25 power supply.
RF indicators are affected by power conditions. If the supply voltage of VBAT_RF ranges 3.1V to 3.4V, the RF
function can work but the RF indicators might not meet requirements.
N25 Hardware User Guide
Chapter 3 Application Interfaces
Copyright © Neoway Technology Co., Ltd
9
Figure 3-1 Recommended circuit design 1
The maximum input voltage is 4.3 V and the typical value is 3.8V.
The protection voltage across TVS1 should not exceed the maximum input voltage the module
can bear.
Place TVS diode close to the input interface of the power supply to clamp the surge voltage
before it enters back-end circuits. Therefore, the back-end components and the module are
protected.
A large bypass tantalum capacitor (220 μF or 100 μF) or aluminum capacitor (470 μF or 1000
μF) is expected at C1 to reduce voltage drops during bursts. Its maximum safe operating voltage
should be higher than 1.5 times the voltage across the power supply.
Place a bypass capacitor of low-ESR close to the module to filter out high-frequency noise from
the power supply.
A controllable power supply is preferable if the module is used in harsh conditions. Figure 3-2 shows
the recommended schematic design.
Figure 3-2 Recommended schematic design 2
S
G
D
Q2
Q1
BC
E
VIN (3.8V) VBAT
PWR_EN
C1 R4 C7C6C5C4C3
C2
R2
R1
TVS2
10 uF 0.1 uF 10 kΩ
47 kΩ
10 uF 0.1 uF 100 pF 33 pF470 uF
4.7 kΩ
Power Supply N25 Module
TVS1 C1 C2 C3 C4
Close to the pin of the module
VBAT
Test point
I_max
C5
N25 Hardware User Guide
Chapter 3 Application Interfaces
Copyright © Neoway Technology Co., Ltd
10
Schematic Design Guidelines
Select an enhanced p-MOSFET at Q1, of which the maximum safe operating voltage and drain
current is high and Rds is low.
Select a common NPN transistor or a digital NPN transistor at Q2. Reserve enough resistance
tolerances at R1 and R2 in design, especially for the situation in which operating voltage of the
bipolar transistor might increase in low temperature.
Place TVS2 close to the input interface of the power supply to clamp the surge voltage before it
enters back-end circuits. Therefore, the back-end components and the module are protected.
Place C3 close to the module. A large bypass tantalum capacitor (220 μF or 100 μF) or
aluminum capacitor (470 μF or 1000 μF) is expected at C1 to reduce voltage drops during
bursts. Its maximum safe operating voltage should be higher than 1.5 times the voltage across
the power supply.
Place a low-ESR bypass capacitor close to the module to filter out high-frequency noise from the
power supply.
PCB Layout Guidelines
Place an ESR capacitor at the output of the power supply to absorb surge current. Place a TVS diode
at the input of VBAT to protect back-end components. The layout of components and PCB trace are
critical to the hardware design of a device. Follow rules below in the power supply design:
TVS diodes dissipate the transient pulse power during a surge and can handle a peak pulse
current of dozens or more than 100 A. They have a short response time. Place the TVS as close
to the interface as possible to ensure that the surge voltage can be clamped before the pulse is
coupled to the neighbor traces.
Place bypass capacitors close to the power pin of the module to filter out the high-frequency
noise from the power supply.
Ensure that the width of PCB traces for VBAT circuits allows 2A current (GSM) and ensure no
obvious decrease of loop voltages. Trace width of VBAT should be at least 1 mm and the ground
plane should be as complete as possible. The traces of power supply circuit should be as short
and wide as possible.
Noise-sensitive circuits such as audio and RF, should be placed far away from power supply
circuits, especially when the DC-DC is adopted in the design. Connect GND pins and bottom
pads to ground to optimize heat sink and separate noise.
Never use a diode to make the drop voltage between a higher input and module power. Otherwise, Neoway will
not provide warranty for product issues caused by this. In this situation, the diode will obviously decrease the
module performances, or result in unexpected restarts, because the forward voltage of diode will vary greatly in
different temperature and current. The module might not work properly with a diode power supply.
N25 Hardware User Guide
Chapter 3 Application Interfaces
Copyright © Neoway Technology Co., Ltd
11
3.1.2 VDD_2P8
N25 provides one VDD_2P8 pin that outputs 2.8V@50 mA.
VDD_2P8 is enabled automatically when the module is awake or in running state.
It is recommended that VDD_2P8 is used for level shift only and an ESD protector should be added.
3.1.3 VRTC
VRTC is the input pin of the backup power for RTC. External power source can supply power for RTC
power supply with a maximum voltage of 1.4V.
3.2 Control Interfaces
Signal
Pin
I/O
Function
Remarks
RESET_N
38
DI
Reset input
Reset at low level
PWRKEY_N
40
DI
ON/OFF button
Triggered by low level to start or shut down the
module.
3.2.1 PWRKEY_N
N25 allows startup by the following controls:
Button
MCU
Automatic start once powered up
Figure 3-3 Reference design of startup controlled by button
ESD N25 module
PWRKEY_N
S1
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13
  • Page 14 14
  • Page 15 15
  • Page 16 16
  • Page 17 17
  • Page 18 18
  • Page 19 19
  • Page 20 20
  • Page 21 21
  • Page 22 22
  • Page 23 23
  • Page 24 24
  • Page 25 25
  • Page 26 26
  • Page 27 27
  • Page 28 28
  • Page 29 29
  • Page 30 30
  • Page 31 31
  • Page 32 32
  • Page 33 33
  • Page 34 34
  • Page 35 35
  • Page 36 36
  • Page 37 37
  • Page 38 38
  • Page 39 39
  • Page 40 40
  • Page 41 41
  • Page 42 42
  • Page 43 43
  • Page 44 44
  • Page 45 45
  • Page 46 46
  • Page 47 47
  • Page 48 48
  • Page 49 49

Neoway N25 User guide

Type
User guide

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI