Neoway N11 Series Installation manual

N11
Hardware User Guide
Issue 1.2
Date 2018-10-13
Neoway Product Document

N11
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
i
Copyright © Neoway Technology Co., Ltd 2018. 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 N11.
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:
[email protected]
[email protected]
Website: http://www.neoway.com

N11
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
ii
Contents
1 About N11 .................................................................................................. 2
1.1 Overview ...................................................................................................................................... 2
1.2 Block Diagram.............................................................................................................................. 2
1.3 Specifications ............................................................................................................................... 3
2 Pin Description .......................................................................................... 5
2.1 Pin Allocation................................................................................................................................ 5
2.2 Pin Definition ................................................................................................................................ 6
3 Application Interfaces ................................................................................ 8
3.1 Power Supply ............................................................................................................................... 8
3.1.1 Design Requirements.......................................................................................................... 8
3.1.2 Power-On/Off Control and Procedure ............................................................................... 12
3.2 UART.......................................................................................................................................... 15
3.3 DTR and RING........................................................................................................................... 18
3.3.2 DTR Pin ............................................................................................................................. 18
3.3.3 RING Signal....................................................................................................................... 18
3.4 SIM Card .................................................................................................................................... 19
3.5 LIGHT......................................................................................................................................... 21
3.6 RF............................................................................................................................................... 22
3.6.1 RF Design and PCB Layout .............................................................................................. 22
3.6.2 Recommended RF Connection ......................................................................................... 24
4 Electric Features and Reliability .............................................................. 25
4.1 Electric Feature .......................................................................................................................... 25
4.2 Temperature ............................................................................................................................... 25
4.3 Current ....................................................................................................................................... 26
4.4 ESD Protection........................................................................................................................... 27
5 RF Features............................................................................................. 28
5.1 Operating Band .......................................................................................................................... 28
5.2 Transmitting Power and Receiving Sensitivity ........................................................................... 28
5.2.1 Transmitting Power............................................................................................................ 28
5.2.2 Receiving Sensitivity.......................................................................................................... 30
6 PCB Foot Print......................................................................................... 31
7 Mounting N11 onto the Application Board................................................ 32
8 Package................................................................................................... 33
9 Abbreviations ........................................................................................... 34

N11
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
iii
Table of Figures
Figure 1-1 N11 Block Diagram ........................................................................................................... 3
Figure 2-1 Top view of N11 module.................................................................................................... 5
Figure 3-1 Current peaks and voltage drops ..................................................................................... 9
Figure 3-2 Capacitors used for the power supply .............................................................................. 9
Figure 3-3 Reference design of power supply control ..................................................................... 10
Figure 3-4 Reference design of power supply controlled by p-MOSFET ........................................ 10
Figure 3-5 Reference designs of separated power supply .............................................................. 12
Figure 3-6 Power-on procedure ....................................................................................................... 13
Figure 3-7 Power-off procedure ....................................................................................................... 13
Figure 3-8 Reference circuit for power-on/off control....................................................................... 14
Figure 3-9 Reference circuit for power-on/off controlled by high level............................................. 14
Figure 3-10 Signal connection between DCE and DTE................................................................... 15
Figure 3-11 Recommended level shifting circuit 1 ........................................................................... 16
Figure 3-12 Recommended level shifting circuit 2 ........................................................................... 17
Figure 3-13 RING indicator for incoming call ................................................................................... 19
Figure 3-14 RING indicator for SMS ................................................................................................ 19
Figure 3-15 Reference design of SIM card interface ....................................................................... 20
Figure 3-16 Reference of SIM card socket ...................................................................................... 21
Figure 3-17 LED indicator ................................................................................................................ 22
Figure 3-18 Reference design for antenna interface ....................................................................... 23
Figure 3-19 RF layout reference ...................................................................................................... 23
Figure 3-20 Encapsulation specifications of Murata RF connector ................................................. 24
Figure 3-21 RF connections............................................................................................................. 24
Figure 6-1 PCB foot print recommended for N11 (unit: mm) ........................................................... 31

N11
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
iv
Table of Tables
Table 1-1 N11 Specifications.............................................................................................................. 3
Table 2-1 N11 Pin definition ............................................................................................................... 6
Table 3-1 Power supply and switch interface..................................................................................... 8
Table 3-2 UART................................................................................................................................ 15
Table 3-3 DTR and RING pins ......................................................................................................... 18
Table 3-4 SIM card interfaces .......................................................................................................... 19
Table 3-5 LED indicator.................................................................................................................... 21
Table 4-1 Electric feature of the module .......................................................................................... 25
Table 4-2 Temperature Feature........................................................................................................ 25
Table 4-3 Current feature ................................................................................................................. 26
Table 4-4 ESD feature of the module............................................................................................... 27
Table 5-1 Operating band................................................................................................................. 28
Table 5-2 Transmitting power (GSM800&EGSM900) ...................................................................... 28
Table 5-3 Transmitting power (DCS1800&PCS1900)...................................................................... 29

N11
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
v
About This Document
Scope
This document is applicable to N11 series.
It defines the features, indicators, and test standards of the N11 module and provides reference for
the hardware design of each interface.
Audience
This document is intended for system engineers (SEs), development engineers, and test engineers.
Change History
Issue
Date
Change
Changed By
1.0
2018-03
Initial draft
Wang Qiang
1.1
2018-03
Modified the signal
Zhuo JianZheng
1.2
2018-09
Added N11 V2
Zhuo JianZheng
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

N11
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
vi
Related Documents
Neoway_N11_Datasheet
Neoway_N11_Product_Specifications
Neoway_N11_AT_Command_Mannual
Neoway_N11_EVK_User_Guide

N11
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
2
1 About N11
N11 is a compact wireless GSM/GPRS module. It provides high-quality SMS and data services. N11
is widely used in industrial and consumer applications.
N11 series include two variants: N11 and N11 V2. These two variants are completely compatible with
each other in pin definition, packaging, and electric feature. In this document, N11 refers to both
variants if there is additional note.
1.1 Overview
The N11 module adopts 20-pin LGA package and its dimensions are 15.8 mm x 13.8 mm x 2.5 mm,
which can meet most customer requirements for space reduction. It has the following hardware
resources and features:
UART interface, used for data communications, software upgrades and debugging
Support SIM card 1.8/3.0V self-adaption
Support RING (incoming call and SMS reminder)/NET_LIGHT//LIGHT (work indicator)/DTR
(sleep mode) function
1.2 Block Diagram
The N11 module consists of baseband controller, Flash ROM, RF section, application interfaces, etc.
All sections coordinate with each other to provide such communication functions as GPRS data. Its
design block diagram is shown in Figure 1-1.

N11
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
3
Figure 1-1 N11 Block Diagram
ON/OFF
Power
Manager
Flash
Analog
Baseband
Digital
Baseband
RF Front-end-module 26MHz
Crystal
Digital
Iterface
SIM UART
SIM
VBAT
RF transceiver
GSM850 :Uplink 824~849MHz,Downlink 869~894MHz
EGSM900:Uplink 880~915MHz,Downlink 925~960MHz
DCS1800:Uplink 1710~1785MHz,Downlink 1805~1880MHz
PCS1900:Uplink 1850~1910MHz,Downlink 1930~1990MHz
1.3 Specifications
Table 1-1 N11 Specifications
Specifications
Description
Dimensions
(15.8±0.1) mm x (13.8±0.1) mm x (2.5±0.2) mm (H x W x D)
Weight
1.3 g
Package
20-pin LGA
Operating Temperature
-40 ºC to +85 ºC
Operating Voltage
3.3 V to 4.3 V (3.9 V is recommended)
Peak Current
Max 2.0 A
Operating Current (Idle)
11 mA
Current in Sleep Mode
< 2.5 mA (on live network)

N11
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
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< 1.1 mA (through instrument, DRX=9)
Frequency band
GSM850/EGSM900/DCS1800/PCS1900
Sensitivity
< -108 dBm
Transmit power
GSM850/EGSM900 Class4(2W)
DCS1800/PCS1900 Class1(1W)
Protocol
Support GSM/GPRS Phase2/2+
AT commands
GSM07.07
Extended AT commands
SMS
Support PDU and TEXT mode
Support SMS message receiving and sending and alert for new
SMS messages
Support SMS message management: reading/deleting/storage/list
GPRS Features
Support GPRS CLASS 12
Theoretical maximum uplink transmission rate: 85.6 Kbit/s
Theoretical maximum downlink transmission rate: 85.6 Kbit/s
Embedded TCP/IP protocol, support multi-link
Support server and client mode
UART
Support AT command sending, data transmission and firmware
download
Support baud rate from 9600 bit/s to 115200 bit/s
Antenna Feature
50 Ω characteristic impedance