NEXCOM NIO51 Mesh Wi-Fi Device Gateway User Manual

NEXCOM International Co., Ltd.

Version 1.0

Published March 2018

www.nexcom.com

NEXCOM International Co., Ltd.

IoT Automation Solutions Business Group

Industrial Mesh Wi-Fi Serial/Ethernet

Device Gateway

NIO 51

User Manual

ii

Contents

Preface ..................................................................... 1

Copyright ........................................................................................1

Disclaimer ........................................................................................1

Acknowledgements .........................................................................1

Regulatory Compliance Statements .................................................. 1

Declaration of Conformity ................................................................2

RoHS Compliance ............................................................................5

Safety Information ...........................................................................5

Installation Recommendations ..........................................................6

Safety Precautions ............................................................................ 6

Technical Support and Assistance .....................................................7

Conventions Used in this Manual .....................................................8

Chapter 1: Product Overview ................................. 9

1.1 Introduction ..............................................................................9

1.2 Panel Layout ...........................................................................11

1.2.1 NIO 51 Top Panel View ......................................................11

1.2.2 NIO 51 Dimension .............................................................12

1.3 LED Indicators .........................................................................13

1.4 Reset Button ...........................................................................13

1.5 Package Contents ...................................................................14

1.6 Power and Serial Port Pin Assignment .....................................15

Chapter 2: System Configuration ........................ 16

2.1 Quickly Access NIO 51 with Web Browser ...............................16

2.2 Status .....................................................................................19

2.2.1 Status ................................................................................19

2.2.2 Overview ........................................................................... 20

2.2.2.1 System .........................................................................20

2.2.2.2 Memory .......................................................................21

2.2.2.3 Network ......................................................................21

2.2.2.4 DHCP Leases ................................................................22

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Contents

2.2.2.5 DHCPv6 Leases ............................................................22

2.2.2.6 Wireless .......................................................................23

2.2.2.7 Associated Stations ......................................................23

2.2.3 Firewall .............................................................................24

2.2.4 Routes ...............................................................................25

2.2.4.1 ARP .............................................................................25

2.2.4.2 Active IPv4-Routes .......................................................25

2.2.4.3 Active IPv6-Routes .......................................................26

2.2.4.4 IPv6 Neighbors .............................................................26

2.2.5 System Log ........................................................................27

2.2.6 Kernel Log.........................................................................28

2.2.7 Processes ........................................................................... 29

2.2.8 Real-time Graphic ..............................................................29

2.2.8.1 Load ............................................................................30

2.2.8.2 Traffic ..........................................................................31

2.2.8.3 Wireless .......................................................................32

2.2.8.4 Connections ................................................................33

2.3 System .................................................................................... 34

2.3.1 System ..............................................................................35

2.3.1.1 General Settings ..........................................................35

2.3.1.2 Logging .......................................................................37

2.3.1.3 Language and Style .....................................................37

2.3.2 Administration ..................................................................38

2.3.2.1 Router Password ..........................................................38

2.3.2.2 SSH Access ..................................................................38

2.3.3 SNMP ................................................................................ 39

2.3.4 Backup/Flash Firmware ......................................................40

2.3.4.1 Upgrade Firmware .......................................................40

2.3.4.2 Backup Configuration ..................................................42

2.3.4.3 Reset to default ...........................................................43

2.3.7 Reboot ..............................................................................43

2.4 Network .................................................................................44

2.4.1 Interfaces ..........................................................................44

2.4.1.1 Change Default IP Address...........................................44

2.4.1.2 Interfaces Overview .....................................................45

2.4.1.3 LAN Interface Overview ...............................................46

2.4.1.4 DHCP Server ................................................................48

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Contents

2.4.2 WiFi ..................................................................................49

2.4.2.1 Wireless Overview ........................................................ 49

2.4.2.2 Associated Stations ......................................................50

2.4.2.3 Wireless Configuration ................................................50

2.4.3 DHCP and DNS ..................................................................55

2.4.4 Hostnames ........................................................................59

2.4.5 Static Routes .....................................................................60

2.4.6 RSTP ..................................................................................62

2.4.7 Firewall .............................................................................63

2.4.8 Diagnostics ........................................................................67

2.5 Modbus ..................................................................................68

2.5.1 Gateway ...........................................................................68

2.5.2 Log ...................................................................................70

Chapter 3: Product Specification .......................... 71

Chapter 4: Configuration Example ...................... 74

4.1 How to Configure 5G Mesh ....................................................74

4.2 How to Configure 2.4G Client Router .....................................75

4.3 Configure WWAN Interface Setting .........................................77

4.4 Configure LAN Interface Setting .............................................. 79

4.5 Configure Firewall Setting .......................................................80

4.6 Verify Network Status .............................................................80

4.7 How to Run Firmware Upgrade ...............................................81

4.8 How to Restore to Default Settings .........................................82

Chapter 5: Appendix ............................................. 83

5.1 Wi-Fi and 3G/4G Redundant Function ..................................... 83

1

Preface

This manual is for WLAN service providers or network administrators to set

up a network environment using the NIO 51 product line.

Copyright

This publication, including all photographs, illustrations and software, is

part of this manual may be reproduced, copied, translated or transmitted in

any form or by any means without the prior written consent from NEXCOM

International Co., Ltd.

Disclaimer

The information in this document is subject to change without prior notice

and does not represent commitment from NEXCOM International Co.,

Ltd. However, users may update their knowledge of any product in use by

constantly checking its manual posted on our website: http://www.nexcom.

com. NEXCOM shall not be liable for direct, indirect, special, incidental, or

consequential damages arising out of the use of any product, nor for any

infringements upon the rights of third parties, which may result from such

use. Any implied warranties of merchantability or fitness for any particular

purpose is also disclaimed.

Acknowledgements

The NIO series are trademarks of NEXCOM International Co., Ltd. All

other product names mentioned herein are registered trademarks of their

respective owners.

Regulatory Compliance Statements

This section provides the FCC compliance statement for Class B devices and

describes how to keep the system CE compliant.

PrefaCe

2

Preface

Declaration of Conformity

Federal Communication Commission Interference Statement

This equipment has been tested and found to comply with the limits for a

Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference in

a residential installation. This equipment generates, uses and can radiate

radio frequency energy and, if not installed and used in accordance with

the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference

to radio or television reception, which can be determined by turning

the equipment off and on, the user is encouraged to try to correct the

interference by one of the following measures:

– Reorient or relocate the receiving antenna.

– Increase the separation between the equipment and receiver.

– Connect the equipment into an outlet on a circuit different from that

to which the receiver is connected.

– Consult the dealer or an experienced radio/TV technician for help.

FCC Caution: Any changes or modifications not expressly approved by the

party responsible for compliance could void the user's authority to operate

this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject

to the following two conditions: (1) This device may not cause harmful

interference, and (2) this device must accept any interference received,

including interference that may cause undesired operation.

3

Preface

IMPORTANT NOTE:

Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an

uncontrolled environment. This equipment should be installed and operated

with minimum distance 20cm between the radiator and your body.

This transmitter must not be co-located or operating in conjunction with

any other antenna or transmitter.

Country Code selection feature to be disabled for products marketed to the

US/CANADA.

Operation of this device is restricted to indoor use only.

This device is intended only for OEM integrators under the following

conditions:

The antenna must be installed such that 20 cm is maintained between the

antenna and users.

The transmitter module may not be co-located with any other transmitter or

antenna.

For all products market in US, OEM has to limit the operation channels in

CH1 to CH11 for 2.4G band by supplied firmware programming tool. OEM

shall not supply any tool or info to the end-user regarding to Regulatory

Domain change.

As long as 3 conditions above are met, further transmitter test will not be

required. However, the OEM integrator is still responsible for testing their

end-product for any additional compliance requirements required with this

module installed.

IMPORTANT NOTE

In the event that these conditions can not be met (for example certain

laptop configurations or co-location with another transmitter), then the FCC

authorization is no longer considered valid and the FCC ID cannot be used

on the final product. In these circumstances, the OEM integrator will be

responsible for re-evaluating the end product (including the transmitter) and

obtaining a separate FCC authorization.

4

Preface

End Product Labeling

This transmitter module is authorized only for use in device where the

antenna may be installed such that 20 cm may be maintained between the

antenna and users.

Manual Information to the End User

The OEM integrator has to be aware not to provide information to the end

user regarding how to install or remove this RF module in the user’s manual

of the end product which integrates this module. The end user manual

shall include all required regulatory information/warning as shown in this

manual.

CE

The product(s) described in this manual complies with all applicable

European Union (CE) directives if it has a CE marking. For computer systems

to remain CE compliant, only CE-compliant parts may be used. Maintaining

CE compliance also requires proper cable and cabling techniques.

5

Preface

RoHS Compliance

NEXCOM RoHS Environmental Policy and Status Update

NEXCOM is a global citizen for building the digital

infrastructure. We are committed to providing green

products and services, which are compliant with European

Union RoHS (Restriction on Use of Hazardous Substance in Electronic

Equipment) directive 2011/65/EU, to be your trusted green partner

and to protect our environment. RoHS restricts the use of Lead (Pb)

< 0.1% or 1,000ppm, Mercury (Hg) < 0.1% or 1,000ppm, Cadmium

(Cd) < 0.01% or 100ppm, Hexavalent Chromium (Cr6+) < 0.1% or

1,000ppm, Polybrominated biphenyls (PBB) < 0.1% or 1,000ppm, and

Polybrominateddiphenyl Ethers (PBDE) < 0.1% or 1,000ppm. In order

to meet the RoHS compliant directives, NEXCOM has established an

engineering and manufacturing task force to implement the introduction

of green products. The task force will ensure that we follow the standard

NEXCOM development procedure and that all the new RoHS components

and new manufacturing processes maintain the highest industry quality

levels for which NEXCOM are renowned.

The model selection criteria will be based on market demand. Vendors and

suppliers will ensure that all designed components will be RoHS compliant.

How to recognize NEXCOM RoHS Products?

For existing products where there are non-RoHS and RoHS versions, the

suffix “(LF)” will be added to the compliant product name. All new product

models launched after January 2013 will be RoHS compliant. They will use

the usual NEXCOM naming convention.

Safety Information

Before installing and using the device, note the following precautions:

• Read all instructions carefully.

• Do not place the unit on an unstable surface, cart, or stand.

• Follow all warnings and cautions in this manual.

• When replacing parts, ensure that your service technician uses parts

specified by the manufacturer.

• Avoid using the system near water, in direct sunlight, or near a

heating device.

6

Preface

Installation Recommendations

Ensure you have a stable, clean working environment. Dust and dirt can get

into components and cause a malfunction. Use containers to keep small

components separated.

Adequate lighting and proper tools can prevent you from accidentally

damaging the internal components. Most of the procedures that follow

require only a few simple tools, including the following:

• A Philips screwdriver

• A flat-tipped screwdriver

• A grounding strap

• An anti-static pad

Using your fingers can disconnect most of the connections. It is

recommended that you do not use needle-nose pliers to disconnect

connections as these can damage the soft metal or plastic parts of the

connectors.

Safety Precautions

1. Read these safety instructions carefully.

2. Keep this User Manual for later reference.

3. Disconnect this equipment from any AC outlet before cleaning. Use a

damp cloth. Do not use liquid or spray detergents for cleaning.

4. For plug-in equipment, the power outlet socket must be located near the

equipment and must be easily accessible.

5. Keep this equipment away from humidity.

6. Put this equipment on a stable surface during installation. Dropping it or

letting it fall may cause damage.

7. The openings on the enclosure are for air convection to protect the

equipment from overheating. DO NOT COVER THE OPENINGS.

8. Make sure the voltage of the power source is correct before connecting

the equipment to the power outlet.

9. Place the power cord in a way so that people will not step on it. Do not

place anything on top of the power cord. Use a power cord that has

been approved for use with the product and that it matches the voltage

and current marked on the product’s electrical range label. The voltage

and current rating of the cord must be greater than the voltage and

current rating marked on the product.

7

Preface

10. All cautions and warnings on the equipment should be noted.

11. If the equipment is not used for a long time, disconnect it from the

power source to avoid damage by transient overvoltage.

12. Never pour any liquid into an opening. This may cause fire or electrical

shock.

13. Never open the equipment. For safety reasons, the equipment should

be opened only by qualified service personnel.

14. If one of the following situations arises, get the equipment checked by

service personnel:

a. The power cord or plug is damaged.

b. Liquid has penetrated into the equipment.

c. The equipment has been exposed to moisture.

d. The equipment does not work well, or you cannot get it to work

according to the user’s manual.

e. The equipment has been dropped and damaged.

f. The equipment has obvious signs of breakage.

15. Do not place heavy objects on the equipment.

16. CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY

REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE

RECOMMENDED BY THE MANUFACTURER. DISCARD USED BATTERIES

ACCORDING TO THE MANUFACTURER’S INSTRUCTIONS.

Technical Support and Assistance

1. For the most updated information of NEXCOM products, visit NEXCOM’s

website at www.nexcom.com.

2. For technical issues that require contacting our technical support team or

sales representative, please have the following information ready before

calling:

– Product name and serial number

– Detailed information of the peripheral devices

– Detailed information of the installed software (operating system,

version, application software, etc.)

– A complete description of the problem

– The exact wordings of the error messages

8

Preface

Warnings

Read and adhere to all warnings, cautions, and notices in this guide

and the documentation supplied with the chassis, power supply, and

accessory modules. If the instructions for the chassis and power supply

are inconsistent with these instructions or the instructions for accessory

modules, contact the supplier to find out how you can ensure that your

computer meets safety and regulatory requirements.

1. Handling the unit: carry the unit with both hands and handle it with care.

2. Opening the enclosure: disconnect power before working on the unit to

prevent electrical shocks.

3. Maintenance: to keep the unit clean, use only approved cleaning

products or clean with a dry cloth.

Cautions

Electrostatic discharge (ESD) can damage system components. Do the

described procedures only at an ESD workstation.

If no such station is available, you can provide some ESD protection by

wearing an antistatic wrist strap and attaching it to a metal part of the

computer chassis.

Conventions Used in this Manual

Warning:

Information about certain situations, which if not observed, can

cause personal injury. This will prevent injury to yourself when

performing a task.

CAUTION!

CAUTION!CAUTION! Caution:

Information to avoid damaging components or losing data.

Note:

Provides additional information to complete a task easily.

9

Chapter 1: Product Overview

ChaPter 1: ProduCt overview

1.1 Introduction

NIO 51 brings the wireless connectivity from serial devices or Ethernet

devices perfectly to Wi-Fi Mesh in smart factories. Wi-Fi Mesh can be

used for device to AP or mesh backbone between APs.

NIO 51 supports a variety of operation modes and high immunity to

EMC high level protection, wide temperature and wide power range

for harsh environment.

NIO 51 can also be managed and discovered by nCare I4.0 network

manager. It’s a very competitive solution against other device

gateways in the market.

Key Features:

9IEEE 802.11a/b/g/n, 2X2 MIMO

9 Dual band 2.4GHz/5GHz

9 Support a variety of operation modes:

• Serial to Wireless (Mesh or Client)

• Serial to Ethernet

• Ethernet to Wireless

9 Support Modbus/TCP, Modbus/RTU

9 Offline serial port buffer with 20 MB of storage

9 High immunity to surge, ESD & EFT protection

(Surge: Level-3 / ESD, EFT : Level-4)

9 Wide DC power range with 12 - 48V

9 Wide operating temperature from -40°C to 70°C

9 Remote Management by nCare

10

Chapter 1: Product Overview

NIO 51 Mesh Application Scenarios

11

Chapter 1: Product Overview

1.2 Panel Layout

1.2.1 NIO 51 Top Panel View

Wireless Signal

Strength

RS-232/422/485

Power LED

LAN Port

Reset

Serial LED

Antenna

LAN Port

LED

Terminal Block

Power Input

12

Chapter 1: Product Overview

1.2.2 NIO 51 Dimension

122.80

122.60

108.60

35.00

81.40

13

Chapter 1: Product Overview

1.3 LED Indicators

Name Color Function

Power Green

Orange

Boot time is around 40 ~ 45s.

LED color changes when booting up:

Green (Steady on, 10s)



Orange (Steady on, 30s)



Green (Steady on, Ready)

Serial Tx/Rx Green

Red

Green: Tx, serial port to serial device.

Red: Rx, serial device to serial port.

2.4/5 GHz Green

Blue

Green: 2.4 GHz

Blue: 5 GHz

Link / Act Green Blinking: LAN port sending and

receiving data.

Signal Strength

(3 LEDs) Green

1 Green LED: The signal strength is

between 10% ~ 40%.

2 Green LEDs: The signal strength is

between 40% ~ 70%.

3 Green LEDs: The signal strength is

between 70% ~ 100%.

1.4 Reset Button

Name Color Function

Reboot 3 ~ 10s LED Color Change:

Green -> Orange -> Boot up

Reset to default X > 10s Green -> Orange (flash once) -> Green

-> Orange -> Boot up

14

Chapter 1: Product Overview

1.5 Package Contents

NIO 51 unit x 1

Dual band antenna x 2

Wall-mount kit x 1

DIN-Rail kit x 1

Terminal Block

Connector x 1

15

Chapter 1: Product Overview

1.6 Power and Serial Port Pin Assignment

Terminal Block Power Input

1 5

6 9

1 5

6 9

RS-485 Pin Assignment

RxD

D+ (Data+)

D- (Data-)

TxD

GND

CTS

RTS

1

6

7

8

9

2

3

4

5

RS-232 Pin Assignment RS-422 Pin Assignment

1 5

6 9

16

7

8

9

2

3

4

5

TX-

TX+

RX-

RX+

16

Chapter 2: System Configuration

ChaPter 2: system Configuration

2.1 Quickly Access NIO 51 with Web Browser

Login

To access the NIO 51 device, you can open a web browser to access

the Web GUI via the default IP address 192.168.1.1

The default administrator login settings are:

Login: root

Password: admin

The first page you would is see the login page like the below screenshot:

17

Chapter 2: System Configuration

After successful login you will see the “Status” page of the web

management interface with current information of System, Memory,

Network, DHCP, Wireless, and Associated Stations. The device now is

ready for configuration.

Saving Changes

“Save & Apply” the configuration at the bottom of the Web GUI after

you change the settings.

18

Chapter 2: System Configuration

Unsaved Changes

“UNSAVED CHANGES” provides the information to see the parameters

which were not saved and applied.

Click the “Save & Apply” button to save the parameters.

Auto Refresh

Click the “AUTO REFRESH” button to turn on/off the automatic Web

GUI refresh function.

19

Chapter 2: System Configuration

2.2 Status

2.2.1 Status

To display more detailed status, you can click the “Status”

menu under the menu bar, then select the item of Overview,

Firewall, Routes, System Log, Kernel Log, Process, and Real-

time Graphs from the pull-down list like the below screen:

20

Chapter 2: System Configuration

Hostname: Displays NIO 51 name.

Model: Displays NIO 51 HW basic information.

Firmware Version: Displays NIO 51 firmware version.

Kernel Version: Displays NIO 51 current kernel version.

Local Time: Displays NIO 51 current date and time.

Uptime: Displays how long NIO 51 has been

operating since last boot-up uptime.

Load Average: CPU average loading.

For example:

CPU average loading: 94% in the past 1 minute.

43% in the past 5 minutes.

24% in the past 15 minutes.

2.2.2 Overview

To see the overall status of NIO 51, click “Overview” to display

system information and the current settings of the NIO 51’s

ports.

2.2.2.1 System

21

Chapter 2: System Configuration

2.2.2.2 Memory

Total Available: Displays NIO 51 current available

memory.

Free: Displays NIO 51 current free memory.

Buffered: Displays NIO 51 memory used for

buffering.

IPv4 WAN Status: Displays current IPv4 connection

information.

IPv6 WAN Status: Displays current IPv6 connection

information.

Active Connections: Displays current active connections.

2.2.2.3 Network

22

Chapter 2: System Configuration

2.2.2.4 DHCP Leases

This displays information about hosts (personal computers or electronic

devices) that are connected to NIO 51 including IPv4, MAC address and

leasing time

2.2.2.5 DHCPv6 Leases

This displays information about hosts (personal computers or electronic

devices) that are connected to NIO 51 including IPv6, DUID and leasing

time.

23

Chapter 2: System Configuration

2.2.2.6 Wireless

This displays wireless information about NIO 51.

SSID: Displays the name of the wireless network.

Mode: Displays the mode in this radio.

Channel: Displays current channel used.

Bitrate: Displays current wireless data rate.

MAC: Displays MAC address of this radio.

Encryption: Displays current encryption setting.

2.2.2.7 Associated Stations

Displays current associated device information (personal computers or

electronic devices) with NIO 51, including device’s MAC address, signal level,

noise and connecting data rate.

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Chapter 2: System Configuration

2.2.3 Firewall

Firewall setting is a particular function which allows user

to connect or block two or more interfaces in device with

sophisticated and specifically defined parameters in this Web

page.

The settings in Firewall are suggested to keep it as factory

default.

25

Chapter 2: System Configuration

2.2.4 Routes

This section displays information about routing list for current

connected device.

2.2.4.1 ARP

Displays ARP information in NIO 51 including IPv4 address, MAC

address and connecting interface.

2.2.4.2 Active IPv4-Routes

Displays active WAN and LAN port’s IPv4 routing table.

26

Chapter 2: System Configuration

2.2.4.3 Active IPv6-Routes

2.2.4.4 IPv6 Neighbors

Displays active IPv6 routing table of WAN and LAN port.

Displays connected device with IPv6 information.

27

Chapter 2: System Configuration

2.2.5 System Log

Displays the record of system activities. The administrator can monitor the

system status by checking this log.

28

Chapter 2: System Configuration

2.2.6 Kernel Log

Displays the record of kernel activities. The administrator can monitor the

system status by checking this log.

29

Chapter 2: System Configuration

2.2.7 Processes

This Webpage is designed for detailed troubleshooting/

status monitoring by professional personnel in the field. Any

improper termination or killing of individual process tasks may

cause device malfunction. It is suggested that the settings

are kept as factory default.

2.2.8 Real-time Graphic

This section provides utilities to monitor NIO 51 system

information including real-time load, real-time Ethernet traffic,

real-time wireless signal and real-time associated device traffic.

To monitor status in this section, please make sure the Web

GUI “auto refresh” function must be “turn on”.

30

Chapter 2: System Configuration

2.2.8.1 Load

Displays real-time CPU average loading percentage.

For example:

1 minute

Minimum

8%

Average

8%

Peak

33%

5 minutes 33% 33% 39%

15 minutes 34% 34% 36%

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Chapter 2: System Configuration

2.2.8.2 Traffic

Displays NIO 51 Ethernet real-time traffic loading.

Inbound: Incoming data packet size.

Outbound: Outgoing data packet size.

32

Chapter 2: System Configuration

2.2.8.3 Wireless

Displays wireless real-time signal quality including signal level, noise

and data rate.

33

Chapter 2: System Configuration

2.2.8.4 Connections

Displays NIO 51 real-time active connection information, including

TCP and UDP connections.

34

Chapter 2: System Configuration

2.3 System

To set up detailed configuration about the NIO 51 system, click

the “System” under the menu bar, then select the items such as

System, Administration, Software, Start up, Scheduled Tasks, LED

configuration, Backup/Flash Firmware and Reboot from the pull-down

list like the below screen:

35

Chapter 2: System Configuration

2.3.1 System

2.3.1.1 General Settings

This section provides general settings of NIO 51 including

Time, Host name, Time zone and NTP.

36

Chapter 2: System Configuration

Enter the address of an SNTP server to receive time updates.

Click “Sync with browser” and let NIO 51 sync time with your current

computer, then select your country from the Timezone pull-down list.

37

Chapter 2: System Configuration

2.3.1.2 Logging

This section provides settings for log configuration.

System log buffer size: The size of log information. Unit: Kbytes.

External system log server: The server address of external log

server.

External system log server port: The port number of external

log server.

Log output level: The output information of log, including

Debug, Info, Notice, Warring, Error, Critical, Alert, and Emergency.

Cron Log Level: The minimal level for cron messages to be logged

to syslog.

2.3.1.3 Language and Style

This section provides settings for language and Web GUI

style. NIO 51 only provides English as default and NEXCOM

style of Web GUI.

38

Chapter 2: System Configuration

2.3.2 Administration

2.3.2.1 Router Password

To change the default password, enter the new password

and confirm it.

2.3.2.2 SSH Access

Secure Shell (SSH). Enable your NIO 51 to be accessed via

SSH-based application.

Interface: Select the interface.

Port: Enter the port number.

Password authentication: Enable/Disable SSH password

authentication.

Allow root logins with password: Enable/Disable the root

user to login with password.

Gateway ports: Enable/Disable remote hosts to connect to

local SSH forwarded ports.

39

Chapter 2: System Configuration

Paste public SSH-Keys (one per line) for SSH public-key

authentication.

R/W Community: SNMP Read-Write Community String -

Used in requests for information from a device and to modify

settings on that device.

R/O Community: SNMP Read-Only Community String -

Enables a remote device to retrieve “read-only” information

from a device.

2.3.3 SNMP

40

Chapter 2: System Configuration

2.3.4 Backup/Flash Firmware

2.3.4.1 Upgrade Firmware

To upgrade a new firmware onto the device, please select

“System” from the menu bar, and then select “Backup/Flash

Firmware”.

Please click “Browse” to select the new firmware.

41

Chapter 2: System Configuration

Then the GUI will display the file checksum.

Click “Proceed” to start the upgrade process.

Note: After you click “Proceed”, the DUT firmware will be upgraded

with the file you selected, and the upgrade progress will be displayed

like below:

Note: The whole programming might take several minutes to

complete the flash writing. PLEASE DO NOT REBOOT OR POWER OFF

THE DEVICE before the whole progress completes.

If the firmware upgrade is successful, the GUI should switch to the

Login page.

You can also check the version via the “Firmware Version” field under

the Status page.

42

Chapter 2: System Configuration

2.3.4.2 Backup Configuration

To backup your current configuration, please choose “System”

from the menu bar, then select “Backup/Flash Firmware” and click

the “Generate archive” button under the Backup / Restore section,

like:

Then save it as a file in your PC.

To restore the device to your previous configuration, please choose

“System” from the menu bar, then select “Backup/Flash Firmware”

and click “Browse” under the section to select your previous

configuration file, then click the button “Upload archive…”, like:

Note: After restoring the file, the system will apply the changes

and reboot automatically. Due to the settings from configuration

backup, the IP address may change and you have to enter the new

IP address accordingly. Otherwise, the new web page may not be

accessible.

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Chapter 2: System Configuration

2.3.4.3 Reset to default

To reset NIO 51 to default settings, please click “Perform

reset”.

Note: The whole programming might take several minutes to

complete the process. PLEASE DO NOT REBOOT OR POWER

OFF THE DEVICE before the whole progress completes.

2.3.7 Reboot

Click the “Perform Reboot” button to warm start the system.

After the system finishes the reboot process, it will direct back

to the Login page.

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Chapter 2: System Configuration

2.4 Network

2.4.1 Interfaces

2.4.1.1 Change Default IP Address

To set up a new IP address, please click “Network” from the

menu bar, then select “Interfaces” and click “Edit”.

Under the “IPv4 address” field, you can input the new IP

address of this device, and then pull down the scroll bar to the

bottom of the Web GUI page and click “Save & Apply” to save

this new IP address into flash and apply it immediately.

Note: After applying new IP, it would take several minutes to

switch to the Status page via the new IP address. Please enter

the new IP address on the browser again if the GUI does not

switch to new GUI page after 5 minutes.

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Chapter 2: System Configuration

2.4.1.2 Interfaces Overview

Connect: Link this interface to the network, functions like “Save &

Apply”.

Stop: Disable the interface to link to the network.

Edit: Modify LAN port group settings.

Delete: Delete this interface group.

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Chapter 2: System Configuration

2.4.1.3 LAN Interface Overview

On this page you can configure the network interfaces. You can

bridge several interfaces by ticking the “bridge interfaces” field and

enter the names of several network interfaces separated by spaces.

The default protocol is static address setting. It is suggested that a

static IP is used for the LAN port.

Static address

Static IP (Manual): Choose this option if you do not have a DHCP

server in your network, or if you wish to assign a static IP address to

NIO 51.

DHCP client

When Dynamic IP (DHCP) is selected, the DHCP client will be

functional once this selection is made.

Unmanaged

This interface has no configuration interface or options.

PPP

Used to provide point to point link for connecting NIO 51 to old

serial modem.

PPPoE

Used for cable modem or ADSL users to link NIO 51 to your

internet provider.

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Chapter 2: System Configuration

Advanced settings and configuration, it is advised that generic

users leave the settings unchanged.

Bridge interfaces

You can bridge an interface group for your LAN interface. After

enabling bridge interfaces, select the interfaces to bridge.

Interface

Select the interfaces for your bridge group. Select both the

Ethernet adapter (most likely eth0.1 or eth1) and the wireless

network.

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Chapter 2: System Configuration

2.4.1.4 DHCP Server

Ignore Interface: Select this option to disable your DHCP server,

you will need a static IP or another DHCP server for your network

interfaces. Default is “enable DHCP”.

Dynamic DHCP: Dynamically allocate DHCP addresses for clients. If

disabled, only clients with static leases will be served.

Force: Force DHCP on this network even if another server is

detected.

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Chapter 2: System Configuration

2.4.2 WiFi

2.4.2.1 Wireless Overview

To set up the Wireless configuration, please select “Network” in

the tab, then select “WiFi”, which would show you the current

status of radio interfaces.

Wireless Overview includes channel, SSID, MAC address and

security setting information.

Scan: Scan any AP nearby the Radio, we can check how many APs

are nearby this AP and avoid using the same channel.

Add: Add a new virtual AP in the same radio interface. You will see

the new interface after clicking “Add”.

Disable: Disable the radio interface.

Edit: Configure the radio interface.

Remove: Remove radio interface. Please note that the radio must

be disabled first when you don’t want to use the radio interface.

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Chapter 2: System Configuration

2.4.2.2 Associated Stations

Associated stations show wireless client connection information. It

includes the SSID, MAC/IP address, RSSI signal strength and Tx/Rx

rate of the wireless client connected.

2.4.2.3 Wireless Configuration

Please select “Network” -> “Wifi” and click Edit to configure

wireless settings.

The Device Configuration section covers physical settings of the

radio hardware such as channel, transmit power and so forth.

Wireless network is enabled: Enable or disable the radio

interface.

Operating frequency: Select radio frequency and channel

bandwidth for signal transmission.

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Chapter 2: System Configuration

For channel bandwidth, please note you need to confirm AP/client

mode or mesh mode and the channel you will use.

Transmit Power: Select the transmit power of a radio.

Distance Optimization: Specify the ACK timeout by entering

the value manually. ACK timeout can be entered by defining the

link distance. A value too short for the ACK timeout may cause

transmission time out and no packets can be received. A value too

long may cause low throughput rate.

Fragmentation Threshold: Default=off. Specify the

Fragmentation threshold by entering the value manually [300-

2346 bytes]. This is the maximum size for a packet before data

is fragmented into multiple packets. Setting the Fragmentation

threshold too low may result in poor network performance. Only

minor modifications of this value are recommended.

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Chapter 2: System Configuration

RTS/CTS Threshold: Default=off. RTS/CTS (Request to Send /

Clear to Send) is the optional mechanism used by the 802.11

wireless networking protocol to reduce frame collisions introduced

by the hidden node problem. RTS/CTS is an additional method to

implement virtual carrier sensing in Carrier sense multiple access

with collision avoidance (CSMA/CA). Specify the RTS threshold by

entering the value manually [0-2346 bytes]. Typically, sending RTS/

CTS frames does not occur unless the packet size exceeds this

threshold.

The Interface Configuration section covers SSID operation mode

and encryption.

ESSID: Edit the SSID. The default SSID for radio0 is NIO51_11N and

default SSID for radio1 is NIO51_11N_2G.

Mode: Select the operation mode:

• Client Router

• 802.11s (Mesh mode)

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Chapter 2: System Configuration

Encryption: To setup the Security on Radio, please select one of the

Encryption method:

• No Encryption

• WEP Open System: WEP provides a basic level of security, preventing

unauthorized access to the network. WEP uses static shared keys that

are manually distributed to all clients that want to use the network.

• WEP Shared Key: WEP provides a basic level of security, preventing

unauthorized access to the network, and encrypting data transmitted

between wireless clients and an access point. WEP uses static shared

keys that are manually distributed to all clients that want to use the

network.

• WPA-PSK: Clients using WPA for authentication.

• WPA2-PSK: Clients using WPA2 for authentication.

• WPA-PSK/WPA2-PSK Mixed Mode: Clients using WPA or WPA2 for

authentication.

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Chapter 2: System Configuration

Cipher: It is recommended to select TKIP and CCMP (AES).

• Force CCMP (AES)

• Force TKIP

• Force TKIP and CCMP (AES)

The cycle icon will display the characters you just input.

For mesh security, please input the same shared key for each mesh

device.

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Chapter 2: System Configuration

2.4.3 DHCP and DNS

A combined DHCP-Server and DNS-Forwarder for NAT firewall is

provided in NIO 51.

Click “Network” -> “DHCP and DNS” in the GUI menu. The “DHCP

and DNS” page will appear. There are four categories of settings or

lease status: “Active DHCP Leases”, “Active DHCPv6 Leases”, “Static

Leases”, and “Server Settings”.

Scroll to the following screen in the “DHCP and DNS” window.

This screen displays the lease information to which DHCP server

assigns automatically, including Hostname, IP address, MAC

address (or DUID), and Remaining Lease-time (DUID stands for the

DHCP Unique Identifier). Please look at the frame in red above.

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Chapter 2: System Configuration

The next category that users can scroll to is “Static Leases” as

follows.

Static leases are used to assign fixed IP addresses and symbolic

hostnames to DHCP clients by calculating MAC-Address. They are

also required for non-dynamic interface configurations where only

hosts with a corresponding lease are served.

Add: Add a new lease entry.

After clicking the “Add” button, a new entry with 4 blank input

boxes will appear. Allow users to fill in the information such as the

MAC-Address (identifies the host), the IPv4-Address (specifies the

fixed address to use) and the Hostname (is assigned as symbolic

name to the requesting host).

Delete: Delete the followed entry.

Scroll to the screen identified as “Server Settings” category.

There are 4 tabs to select more options for DHCP and DNS services in

NIO 51.

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Chapter 2: System Configuration

Domain required: Default value is checked.

Authoritative: Default value is checked.

By default, TFTP server is not enabled.

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Chapter 2: System Configuration

Max. DHCP Leases: Default value is unlimited.

Max. concurrent queries: Default value is 150.

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Chapter 2: System Configuration

2.4.4 Hostnames

Clicking the “Network” -> “Hostnames” in the GUI menu will

bring up the “Hostnames” page.

For devices that do not have hostname or do not resolve

automatically, a hostname-IP paired to a specific device must

be assigned.

Add: Create a host entry (hostname-IP pair) for a specific device.

(For example, Hostname => “Test-Device”; IP address

=>“192.168.1.251”)

Delete: Delete the followed host entry.

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Chapter 2: System Configuration

2.4.5 Static Routes

Clicking “Network” -> “Static Routes” in the GUI menu will

bring up the “Routes” page for two categories: “Static IPv4

Routes” and “Static IPv6 Routes”.

Static routes specify the interface and gateway which certain

host or network can be reached over. Such pair (interface and

gateway) is called a route.

For IPv4 network, scroll down to the “Static IPv4 Routes”

screen as follows.

Add: Add an entry for a route to an IPv4 network or host.

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Chapter 2: System Configuration

Delete: Delete a followed route entry.

For IPv6 network, scroll down to the “Static IPv6 Routes” screen as

follows.

For example: Target network = 192.168.10.0;

Netmask = 255.255.255.0; NIO 51 WAN IP = 192.168.0.1;

The route to be assigned will be “wan” for interface and

“192.168.0.253” for gateway.

Leave “Metric” and “MTU” field to default values as 0 and 1500

respectively.

Add: Add an entry for a route to an IPv6 network or host.

Clicking the “Add” button will show the following entry.

Clicking the “Save & Apply” button will activate the entries.

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Chapter 2: System Configuration

2.4.6 RSTP

Normally, when an AP LAN port connects to a LAN switch,

enabling RSTP is required. For NIO 51, RSTP is not required.

Click “Network” -> “RSTP” in the GUI menu, and navigate to

the RSTP page for configuring RSTP attributes in NIO 51.

Priority: Used to decide which switch is the root bridge. The

smaller the value; the higher the Priority. If switch has same

Priority, compare MAC address. Root bridge can decide Hello

Time, Max Age, Forwarding Delay of the entire network.

Hello Time: The hello time is the time between each bridge

protocol data unit (BPDU) that is sent on a port. This time is

equal to 1 second by default.

Max Age Time: Cannot receive BPDU in specified max age

time, system will re-establish RSTP topology. This time is 6

seconds by default.

Forward Delay Time: The forward delay is the time that is

spent in the listening and learning state. This time is equal to 4

seconds by default.

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Chapter 2: System Configuration

2.4.7 Firewall

Click “Network” -> “Firewall” in the GUI menu, and navigate

to the firewall attributes configuration page.

Clicking the “General Settings” tab on the top of the screen

will show the “Zone Settings” configuration including

“General Settings” and “Zones” categories.

In the “General Settings” category, there are 5 basic options

for traffic control over interfaces:

”Enable SYN-flood protection” (default: enabled), “Drop

invalid packets” (default: disabled), “Input” (default: accept),

“Output” (default: accept), and “Forward” (default: reject).

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Chapter 2: System Configuration

In the “Zones” category, create or edit zones over your network

interfaces to control network traffic flow.

There are 3 control buttons for “Zones” settings:

Edit: Edit the followed flow entry.

Delete: Delete the followed flow entry.

Add: Create a new entry for traffic flow among zones over interfaces.

Clicking the “Port Forwards” tab on the top of the screen will show

the tables for port forwarding. Adding or editing a specific forwarding

table allows remote computers on the internet to connect to a

specific computer or service within the private LAN.

In the “New port forward” category, there is only one button for flow

editing:

Add: Create a new flow entry for port forwarding among zones.

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Chapter 2: System Configuration

Clicking the “Traffic Rules” tab on the top of the screen will bring up

the policy tables of 2 categories: “Traffic Rules” and “Source NAT”.

In the “Traffic Rules” category, the flow entries of traffic rule define

policies for packets traveling between different zones (for example,

to reject traffic between certain hosts or to open WAN ports on the

router).

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Chapter 2: System Configuration

In “Source NAT” category, specific flow entries of masquerading that

allow fine grained control over the source IP used for outgoing traffic

(for example, to map multiple WAN addresses to internal subnets) can

be added or edited.

Add and edit: Create a new entry with default values, and edit at

once if required.

Please remember to click the “Save & Apply” button to activate the

new settings.

Custom rules allow you to execute arbitrary iptables commands which

are not otherwise covered by the firewall framework. The commands

are executed after each firewall re-start, right after the default rule-set

has been loaded.

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Chapter 2: System Configuration

2.4.8 Diagnostics

Click “Network” -> “Diagnostics” in the GUI menu, and

navigate to the “Diagnostics” web page.

In this page, there are 3 utilities for users to diagnose interface

settings and network paths: Ping, Traceroute, and Nslookup.

Ping: Test the reachability of a host on an Internet Protocol

(IP) network and measure the round-trip time for messages

sent from the originating host to a destination host and back.

The only required parameter is the name or IP address of the

destination host.

Traceroute: Track the route packets taken from an IP network

on their way to a given destination host. The only required

parameter is the name or IP address of the destination host.

Nslookup: Query the Domain Name System (DNS) to obtain

domain name or IP address mapping.

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Chapter 2: System Configuration

2.5 Modbus

Configuration for serial and Modbus/RTU settings. For serial to

Ethernet or wireless data transmission, NIO 51 supports TCP server or

TCP client mode to connect control server.

2.5.1 Gateway

Please select “Modbus” -> “Gateway” to configure serial and

Modbus/RTU.

UART mode: Select RS-232 or RS-422 or RS-485.

Model: Select “None” for RS-232/RS-422/RS-485 and select

“RTU” for Modbus/RTU.

Baudrate: 300 bps to 961200 bps.

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Chapter 2: System Configuration

Parity: None, Odd, Even.

Databit: Data bits 8.

Stopbit: Stop bits 1

Flow Ctl: None, RTS/CTS, XON/XOFF

Timeout: This field specifies how long NIO 51 will wait for a

response before ignoring the Modbus/RTU request.

• 0: Auto

• 1 ~ 65535 milliseconds: If the serial device does not

respond within the specified time, NIO 51 will ignore the

Modbus/RTU request.

Terminator: You may need to add termination resistors in

some critical RS-485 environments to prevent the reflection of

serial signals. NIO 51 built-in 120 Ω and termination resistor

can be enabled.

Mode: Select TCP client or TCP server mode.

Listen Port: Configure listen port for TCP server mode.

Remote IP: This field specifies the remote host that will access

the device.

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Chapter 2: System Configuration

Remote Port: This field specifies the remote host TCP port

that will access the device.

Timeout: This field specifies how long NIO 51 will wait for a

response before closing the TCP connection.

• 0: Disable. The TCP connection will remain open even if

there is no response packet.

• 1 ~ 65535: If the remote host does not respond to the

packet within the specified time, NIO 51 will close the

existing TCP connection.

2.5.2 Log

Please select “Modbus” -> “Log” to check the log.

The logs include Serial/Modbus configuration changes, sending

and receiving of serial data and TCP connection.

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Chapter 3: Product Specification

ChaPter 3: ProduCt sPeCifiCation

Wi-Fi Radio

• IEEE 802.11a/b/g/n, 2x2 MIMO

Serial Interface

• RS232/422/485 with isolation

– Data bits: 8

– Stop bits: 1

– Parity: none, even, odd

– Baud rate: 300bps ~ 921.6Kbps

Ethernet Interface

• 10/100Mbps

Power Requirements

• Input voltage: 12~48VDC, 2-pin removable terminal block

• Input current: 1.5A@12VDC

LED Indicator

• 1 x Power/status

• 1 x Serial status

• 3 x RSSI indicator

• 1 x Wi-Fi 2.4/5GHz indicator

• 1 x Link/Act indicator

• 1 x Extension module

Factory Default/Reset Button

• Press reset button 10 seconds for factory default

Connector Type

• DC input: Phoenix contact terminal block

• Ethernet: RJ-45 connector

• Serial signal: DB9

Wi-Fi Operating Mode

• EZ Mesh

• Client router

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Chapter 3: Product Specification

Wi-Fi Security (Client Mode)

• WEP (64/128)

• WPA/WPA2 mixed

• WPA2-personal (PSK+CCMP/AES), WPA2-enterprise

Protocol

• Modbus TCP

• Modbus RTU

• Transparent mode for serial to Wi-Fi/Ethernet

Serial Port Characteristics

• Flow control: XON/XOFF, RTS/CTS

• Serial data log: 64KB

• Offline port buffering: 20MB

• Min. concurrent TCP client number: 10

Software Watchdog

Dimension

• 81.4 x 122.6 x 35 (W x D x H) (mm)

Weight: 450g

Mounting

• Wall mounting

• DIN mounting

Construction

• SGCC chassis with fanless design

Certification

• EMI: FCC, CE Class A

• RF

– FCC: Part 15C

– CE: EN300328, EN301893

• EN 62368-1 (pending)

• EMC

– EN301 489-1/17, FCC Part 15 subpart B, EN55032/55024

– IEC61000-4-2: level 4

– IEC61000-4-4: level 4

– IEC61000-4-5 Surge: level 3

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Chapter 3: Product Specification

Environment

• Operating temp: -40°C ~ 70°C

• Storage temp: -40°C ~ 85°C

• Relative humidity: operating 5% ~ 95%, non-condensing

• RoHS compliant

• Vibration

– Random: 2Grms @ 5~500Hz, IEC60068-2-64

– Sinusoidal: 2Grms @ 5~500Hz, IEC60068-2-6

• Shock: 50G, half sine, 11ms, IEC60068-27

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Chapter 4: Configuration Example

ChaPter 4: Configuration examPle

4.1 How to Configure 5G Mesh

Step 1. In the “Network” -> “Wifi” page, press the “Edit” button.

Step 2. Select the 5G channel. Mode = Mesh 802.11s

Step 3. If your 5G channel is 36, 40, 44, 149, select the 40MHz (Only

for mesh mode… ch=36, 40, 44, 149) option.

If your 5G channel is 48, 153, 157, 161, 165, select the

40MHz (Only for mesh mode… ch=48, 153, 157, 161, 169)

option.

Step 4. Press the “Save & Apply” button.

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Chapter 4: Configuration Example

4.2 How to Configure 2.4G Client Router

Network Infrastructure Example

Step 1. Please select “Network” -> “Wifi” and click Edit.

Step 2. Configure Channel SSID and “Client router” mode.

For channel setting, you can select “auto” to scan the channel

automatically or you can select the channel if you already

know the AP channel that you want to connect.

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Chapter 4: Configuration Example

Step 3. For Network, click “create” and enter WWAN (Wireless WAN)

in the text field, then add new network interface.

Step 4. Configure the WPA2 password.

Step 5. Press the “Save & Apply” button.

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Chapter 4: Configuration Example

4.3 Configure WWAN Interface Setting

Step 1. Please select “Network” -> “Interface” and click WWAN Edit.

Step 2. It is suggested that DHCP client is selected if your AP has

DHCP server function. Click “Switch protocol” to switch the

DHCP client mode for WWAN interface.

Step 3. Because WWAN interface is used for AP connection, please

make sure that Wireless Network is selected in the “Physical

Settings” tab.

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Chapter 4: Configuration Example

Step 4. You can enable firewall for the WWAN interface or select

“unspecified” to disable firewall.

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Chapter 4: Configuration Example

4.4 Configure LAN Interface Setting

Step 1. Please select “Network” -> “Interface” and click LAN Edit.

Step 2. Because LAN interface is used for device LAN connection,

please make sure that Ethernet Adapter is selected in the

“Physical Settings” tab.

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Chapter 4: Configuration Example

4.5 Configure Firewall Setting

Step 1. Please select “Network” -> “Firewall” and select “accept” to

accept input and forward packets.

4.6 Verify Network Status

Step 1. Please select “Network” -> “Overview” to check the WAN

status.

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Chapter 4: Configuration Example

4.7 How to Run Firmware Upgrade

Step 1. In the “System” -> “Flash firmware” page, select your image

and press the “Flash image” button.

Step 2. Press the “Proceed” button, then the image will be flashed to

the device, please wait for 2 minutes.

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Chapter 4: Configuration Example

4.8 How to Restore to Default Settings

Step 1. In the “System” -> “Flash firmware” page, press the

“Platform reset” button.

NIO 51 Default Parameters:

LAN port default IP = 192.168.1.1

WAN port default IP = DHCP Client

Login user name: root

Login password: admin

83

Chapter 5: Appendix

ChaPter 5: aPPendix

5.1 Wi-Fi and 3G/4G Redundant Function

NIO 51 supports Wi-Fi and 4G redundant function. The main

application area for this function is in industrial vehicles. Industrial

vehicles use Wi-F or 4G when arriving to or leaving from stations. The

3G/4G function is a project based function.

The standard NIO 51 does not include a 3G/4G module, please install

the 3G/4G module in the mini PCI slot of NIO 51 and then install an

antenna and SIM card. After finishing the installation, the 3G/4G

setting will show up in the Web GUI. Please select “Network” ->

“3G/4G” to configure.

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Chapter 5: Appendix

3G/4G Parameters

Please select “Redundancy” to enable Wi-Fi and 4G redundant

function. You will then need to enter Remote IP address.

When NIO 51 cannot ping Remote IP(1), NIO 51 will ping Remote

IP(2) and then Remote IP(3). If you only configured remote IP(1), NIO

51 will activate 3G/4G connection directly.

When NIO 51 can ping Remote IP(1) to Remote IP(3), NIO 51 will stop

3G/4G connection .

Remote IP(2) and Remote IP(3) settings are not required.

APN: The service provider may use access point network (APN)

information to connect 3G/4G service. Please enter the access point

network (APN) information here.

PIN: SIM card PIN code.

Auto Connect:

• None: Never connect 3G/4G.

• Yes: Always connect 3G/4G, it is suggested that Wi-Fi is disabled.

• Redundancy: Enable Wi-Fi and 4G redundant function.

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Chapter 5: Appendix

Ping interval: Ping interval between two Remote IPs.

Remote IP(1) address: When Redundancy function is enabled, you

can configure wireless remote IP(1).

Remote IP(2) address: When Redundancy function is enabled, you

can configure wireless remote IP (2).

Remote IP(3) address: When Redundancy function is enabled, you

can configure wireless remote IP (3).

Check 3G/4G Connection Status

Please select “Status” -> “Overview”, and then check the 3G/4G status.

You can check the telecom operator’s IP and gateway, 3G/4G

information, etc.

NEXCOM NIO51 Mesh Wi-Fi Device Gateway User Manual

NEXCOM international Co.,LTD Mesh Wi-Fi Device Gateway Users Manual

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