Moxa W2X50A Nport Device Server User Manual

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NPort W2150A/W2250A Series
User’s Manual
First Edition, April 2012
www.moxa.com/product
© 2012 Moxa Inc. All rights reserved.
NPort W2150A/W2250A Series
User’s Manual
The software described in this manual is furnished under a license agreement and may be used only in accordance with
the terms of that agreement.
Copyright Notice
© 2012 Moxa Inc. All rights reserved.
Trademarks
The MOXA logo is a registered trademark of Moxa Inc.
All other trademarks or registered marks in this manual belong to their respective manufacturers.
Disclaimer
Information in this document is subject to change without notice and does not represent a commitment on the part of
Moxa.
Moxa provides this document as is, without warranty of any kind, either expressed or implied, including, but not limited
to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this manual, or to the
products and/or the programs described in this manual, at any time.
Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no responsibility for
its use, or for any infringements on the rights of third parties that may result from its use.
This product might include unintentional technical or typographical errors. Changes are periodically made to the
information herein to correct such errors, and these changes are incorporated into new editions of the publication.
Technical Support Contact Information
www.moxa.com/support
Moxa Americas
Moxa China (Shanghai office)
Toll-free: 1-888-669-2872
Toll-free: 800-820-5036
Tel:
+1-714-528-6777
Tel:
+86-21-5258-9955
Fax:
+1-714-528-6778
Fax:
+86-21-5258-5505
Moxa Europe
Moxa Asia-Pacific
Tel:
+49-89-3 70 03 99-0
Tel:
+886-2-8919-1230
Fax:
+49-89-3 70 03 99-99
Fax:
+886-2-8919-1231
Table of Contents
1.
Introduction ...................................................................................................................................... 1-1
Overview ........................................................................................................................................... 1-2
Package Checklist ............................................................................................................................... 1-2
Product Features ................................................................................................................................ 1-2
Product Specifications ......................................................................................................................... 1-3
Serial Port Pin Assignments .................................................................................................................. 1-4
2.
Getting Started.................................................................................................................................. 2-1
Overview ........................................................................................................................................... 2-2
Panel Layout ...................................................................................................................................... 2-2
LED Indicators .................................................................................................................................... 2-3
Top Panel LED Indicators .............................................................................................................. 2-3
End Panel LED Indicators.............................................................................................................. 2-3
Pull High/Low Resistors for RS-422/485................................................................................................. 2-4
Placement Options .............................................................................................................................. 2-5
Connecting the Hardware..................................................................................................................... 2-5
Connecting to the Network ........................................................................................................... 2-6
Connecting the Power .................................................................................................................. 2-6
Connecting to a Serial Device ....................................................................................................... 2-6
3.
Initial IP Configuration ..................................................................................................................... 3-1
Overview ........................................................................................................................................... 3-2
Factory Default IP Settings .................................................................................................................. 3-2
Using ARP to Assign IP Address ............................................................................................................ 3-2
Using the Telnet Console to Assign IP Address........................................................................................ 3-3
Using the Serial Console to Assign IP Address ........................................................................................ 3-6
4.
Introduction to Operation Modes ...................................................................................................... 4-1
Overview ........................................................................................................................................... 4-2
RealCOM Mode ................................................................................................................................... 4-2
RFC2217 Mode ................................................................................................................................... 4-3
TCP Server Mode ................................................................................................................................ 4-3
TCP Client Mode ................................................................................................................................. 4-3
UDP Mode .......................................................................................................................................... 4-4
Pair Connection Modes ........................................................................................................................ 4-4
Ethernet Modem Mode......................................................................................................................... 4-4
5.
Web Console: Basic Settings ............................................................................................................. 5-1
Overview ........................................................................................................................................... 5-2
Basic Settings .................................................................................................................................... 5-4
6.
Web Console: Network Settings ........................................................................................................ 6-1
Overview ........................................................................................................................................... 6-2
Network Settings ................................................................................................................................ 6-2
General Settings ......................................................................................................................... 6-2
Ethernet Settings ........................................................................................................................ 6-3
WLAN Settings ............................................................................................................................ 6-4
Advanced Settings ..................................................................................................................... 6-21
7.
Web Console: Serial Port Settings ..................................................................................................... 7-1
Overview ........................................................................................................................................... 7-2
Serial Port Settings ...................................................................................................................... 7-2
Communication Parameters ........................................................................................................ 7-22
Data Buffering/Log .................................................................................................................... 7-24
8.
Web Console: System Management ................................................................................................... 8-1
Overview ........................................................................................................................................... 8-2
System Management........................................................................................................................... 8-2
Misc. Network Settings ................................................................................................................. 8-2
Auto Warning Settings ................................................................................................................. 8-6
Maintenance ............................................................................................................................. 8-10
Maintenance ............................................................................................................................. 8-11
Certificate ................................................................................................................................ 8-14
9.
Web Console: System Monitoring ...................................................................................................... 9-1
Overview ........................................................................................................................................... 9-2
System Monitoring .............................................................................................................................. 9-2
Serial Status ............................................................................................................................... 9-2
System Status ............................................................................................................................ 9-4
10. Web Console: Restart ...................................................................................................................... 10-1
Overview ......................................................................................................................................... 10-2
Restart ............................................................................................................................................ 10-2
Restart System ......................................................................................................................... 10-2
Restart Ports............................................................................................................................. 10-3
11. Installing and Configuring the Software ......................................................................................... 11-1
Overview ......................................................................................................................................... 11-2
NPort Windows Driver Manager .......................................................................................................... 11-2
Installing NPort Windows Driver Manager ..................................................................................... 11-2
Adding Mapped Serial Ports ........................................................................................................ 11-5
Configuring Mapped Serial Ports .................................................................................................. 11-8
NPort Search Utility......................................................................................................................... 11-13
Installing NPort Search Utility ................................................................................................... 11-13
Finding NPort Device Servers on Network ................................................................................... 11-15
Modifying NPort IP Addresses.................................................................................................... 11-16
Upgrading NPort Firmware........................................................................................................ 11-17
Linux Real TTY Drivers .................................................................................................................... 11-18
Basic Steps............................................................................................................................. 11-18
Installing Linux Real TTY Driver Files ......................................................................................... 11-18
Mapping TTY Ports ................................................................................................................... 11-19
Removing Mapped TTY Ports ..................................................................................................... 11-19
Removing Linux Driver Files...................................................................................................... 11-20
UNIX Fixed TTY Drivers ................................................................................................................... 11-20
Installing the UNIX Driver......................................................................................................... 11-21
Configuring the UNIX Driver ..................................................................................................... 11-21
A.
SNMP Agents with MIB II & RS-232-Like Groups .............................................................................. A-1
RFC1213 MIB-II Supported SNMP Variables ........................................................................................... A-1
System MIB ................................................................................................................................ A-1
Interfaces MIB ............................................................................................................................ A-1
IP MIB ....................................................................................................................................... A-1
ICMP MIB ................................................................................................................................... A-2
UDP MIB .................................................................................................................................... A-2
Address Translation ..................................................................................................................... A-2
TCP MIB ..................................................................................................................................... A-2
SNMP MIB .................................................................................................................................. A-2
RFC1317: RS-232 MIB Objects ............................................................................................................. A-3
Generic RS-232-like Group ........................................................................................................... A-3
RS-232-like General Port Table ..................................................................................................... A-3
RS-232-like Asynchronous Port Group............................................................................................ A-3
The Input Signal Table ................................................................................................................. A-3
The Output Signal Table ............................................................................................................... A-3
B.
Well Known Port Numbers ................................................................................................................ B-1
C.
Ethernet Modem Commands .............................................................................................................. C-1
Dial-in Operation ................................................................................................................................ C-1
Dial-out ............................................................................................................................................. C-1
Disconnection Request from Local Site ..................................................................................................C-1
Disconnection Request from Remote Site ...............................................................................................C-1
AT Commands .................................................................................................................................... C-2
S Registers ........................................................................................................................................ C-3
D.
Federal Communication Commission Interference Statement ........................................................... D-1
E.
FCC Warning Statement .................................................................................................................... E-1
1
1.
The following topics are covered in this chapter:
 Overview
 Package Checklist
 Product Features
 Product Specifications
 Serial Port Pin Assignments
 Overview
 Panel Layout
 LED Indicators
 Top Panel LED Indicators
 End Panel LED Indicators
 Pull High/Low Resistors for RS-422/485
 Placement Options
 Connecting the Hardware
 Connecting to the Network
 Connecting the Power
 Connecting to a Serial Device
Introduction
NPort W2150A/W2250A Series
Introduction
Overview
In this chapter we introduce the basic features and specifications of the NPort W2150A/W2250A and NPort
W2150A/W2250A-T, referred to collectively as the NPort W2150A/W2250A Series.
The NPort W2150A/W2250A Series of wireless device servers are used to connect RS-232/422/485 serial
devices such as PLCs, meters, and sensors, to a wired Ethernet LAN or wireless LAN. Your communications
software will be able to access the serial devices from anywhere over a local LAN, WLAN, or the Internet.
Moreover, the WLAN environment offers an excellent solution for applications in which the serial devices are
moved frequently from place to place.
The NPort W2150A/W2250A supports both automatic IP configuration protocols (DHCP, BOOTP) and manual
configuration using a standard web browser. Both IP configuration methods ensure quick and effective
installation. In addition, a utility called “NPort Windows Driver Manager” makes port mapping easy.
The external antenna can be adjusted for maximum signal strength. You can also choose to use your own
antenna for additional flexibility and scalability. A signal strength indicator on the front panel makes it easier for
you to troubleshoot any connection problems.
The NPort W2150A/W2250A Series offers different operation modes to ensure compatibility with standard
network APIs, including TCP Server Mode, TCP Client Mode, and UDP Mode. RealCOM/TTY drivers are provided
to allow legacy serial-based software to communicate over an IP network instantly. This preserves your
software investment while providing all the advantages of networking your serial devices.
For easier management, the NPort W2150A/W2250A include features such as password authentication, IP
filtering, 64-bit and 128-bit WEP encryption, and SNMP support.
Package Checklist
Standard Accessories
•
NPort W2150A, NPort W2150A-T, NPort W2250A, or NPort W2250A-T.
•
Document & Software CD
•
RJ45 to RJ45 Ethernet cross-over cable
•
Warranty statement
•
Quick Installation Guide
Optional Accessories
•
DK-35A: DIN-rail mounting kit (35 mm)
•
Power jack to terminal block power cable (P/N: 9199000000900)
NOTE: Please notify your sales representative if any of the above items are missing or damaged
Product Features
•
Instant connection of any serial device to IEEE 802.11a/b/g network
•
RS-232/422/485 ports supporting baudrates up to 921.6 Kbps
•
Web-based configuration over Ethernet or WLAN
•
Enhanced remote configuration with HTTPS, SSH
•
Secure data access with WEP, WPA, WPA2
•
Built-in WLAN site survey Tool
•
Fast roaming when signal strength is weak
•
Per-port offline port buffering and serial data log
•
Dual power inputs via power jack and terminal block
1-2
NPort W2150A/W2250A Series
Introduction
Product Specifications
Ethernet Interface
Number of Ports: 1
Speed: 10/100 Mbps, auto MDI/MDIX
Connector: RJ45
Magnetic Isolation Protection: 1.5 KV built-in
WLAN Interface
Standard Compliance: 802.11a/b/g
Network Modes: Infrastructure, Ad-Hoc
Transmit Power:
802.11a: 14 dBm (typical)
802.11b: 17 dBm (typical)
802.11g: 15 dBm (typical)
Receive Sensitivity: -80 dBm
Radio Frequency Type: DSSS/OFDM
Transmission Rate:
802.11a: 54 Mbps
802.11b: 11 Mbps
802.11g: 54 Mbps (max.) with auto fallback (54, 48, 36, 24, 18, 12, 11, 9, 6, 5.5, 2, 1 Mbps)
Transmission Distance: Up to 100 meters (in open areas)
Wireless Security:
• WEP: 64-bit/128-bit data encryption
• WPA, WPA2, 802.11i: Enterprise mode and Pre-Share Key (PSK) mode
• Encryption: 128-bit TKIP/AES-CCMP EAP-TLS, PEAP/GTC, PEAP/MD5, PEAP/MSCHAPV2, EAP-TTLS/PAP,
EAP-TTLS/CHAP, EAP-TTLS/MSCHAP, EAP-TTLS/MSCHAPV2, EAP-TTLS/EAP-MSCHAPV2, EAP-TTLS/EAP-GTC,
EAP-TTLS/EAP-MD5, LEAP
Antenna Connector: Reverse SMA
Serial Interface
Number of Ports:
NPort W2150A: 1
NPort W2250A: 2
Serial Standards: RS-232/422/485 (DB9 male connector)
Off-line Port Buffering:
NPort W2150A: 20 MB
NPort W2250A: 10 MB
Serial Line Surge Protection: 1KV (level 2)
Serial Communication Parameters
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: None, Even, Odd, Space, Mark
Flow Control: RTS/CTS, XON/XOFF
Baudrate: 50 bps to 921.6 Kbps
Serial Data Log: 64 KB
Serial Signals
RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422: TxD+, TxD-, RxD+, RxD-, GND
RS-485-4w: TxD+, TxD-, RxD+, RxD-, GND
RS-485-2w: Data+, Data-, GND
Software
Network Protocols: ICMP, IP, TCP, UDP, DHCP, Telnet, DNS, SNMP V1/V2c/V3, HTTP, SMTP, SNTP, SSH,
HTTPS
Configuration Options: Web Console, Serial Console, Telnet Console
1-3
NPort W2150A/W2250A Series
Introduction
Secure Configuration Options: HTTPS, SSH
Windows RealCOM Drivers: Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7 x86/x64,
Embedded CE 5.0/6.0, XP Embedded
Fixed TTY Drivers: SCO Unix, SCO OpenServer, UnixWare 7, UnixWare 2.1, SVR 4.2, QNX 4.25, QNX 6,
Solaris 10, FreeBSD, AIX 5.x, HP-UX 11i
Linux Real TTY Drivers: 2.4.x, 2.6.x, 3.x
Utilities: NPort Search Utility and NPort Windows Driver manager
Management: SNMP MIB-II
Physical Characteristics
Housing: Aluminum sheet metal (1 mm)
Weight: 780 g
Dimensions:
Without ears or antenna: 77 x 111 x 26 mm (3.03 x 4.37 x 1.02 in)
With ears, without antenna: 100 x 111 x 26 mm (3.94 x 4.37 x 1.02 in)
Antenna Length: 109.79 mm (4.32 in)
Environmental Limits
Operating Temperature:
Standard Models: 0 to 55°C (32 to 131°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature: -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity: 5 to 95% (non-condensing)
Power Requirements
Input Voltage: 12 to 48 VDC
Power Consumption:
237 mA @ 12 V, 125 mA @ 24 V, 50 mA @ 48 V
Standards and Certifications
Safety: UL 60950-1, EN 60950-1
EMC: CE, FCC
EMI: FCC Part 15 Subpart B Class A, FCC Subpart C/E, VCCI
EMS: EN 55022 Class A
Radio: CE (ETSI EN 301 893, ETSI EN 300 328), ARIB RCR STD-33, ARIB STD-66
Power Line Surge Protection: 2 KV (level 3)
Reliability
Alert Tool: RTC (real-time clock)
Automatic Reboot Trigger: Built-in WDT (watchdog timer)
Warranty
Warranty Period: 5 years
Details: See www.moxa.com/warranty
Serial Port Pin Assignments
Pin
RS-232
RS-422/ RS-485 (4W)
DCD
TxD-(A)
---
RXD
TxD+(B)
---
TXD
RxD+(B)
Data+(B)
DTR
RxD-(A)
Data-(A)
GND
GND
GND
DSR
---
---
RTS
---
---
CTS
---
---
---
---
---
1-4
RS-485 (2W)
2
2.
The following topics are covered in this chapter:
 Overview
 Panel Layout
 LED Indicators
 Top Panel LED Indicators
 End Panel LED Indicators
 Pull High/Low Resistors for RS-422/485
 Placement Options
 Connecting the Hardware
 Connecting to the Network
 Connecting the Power
 Connecting to a Serial Device
Getting Started
NPort W2150A/W2250A Series
Getting Started
Overview
This chapter presents the hardware features of the NPort W2150/W2250A Series and explains how to connect
the hardware.
Panel Layout
NPort W2150A/W2150A-T
NPort W2250A/W2250A-T
2-2
NPort W2150A/W2250A Series
Getting Started
LED Indicators
Top Panel LED Indicators
Name
Color
Red
Ready
Green
Off
WLAN
Green
Serial 2
Orange
Green
Off
Red
Signal Strength
(5 LEDS)
Power is on and NPort is booting up.
Blinking:
IP conflict or DHCP/ BOOTP server did not respond properly.
Steady on:
NPort is functioning normally.
Blinking:
Unit is responding to Locate function.
Power is off or a power error condition exists.
Steady on:
Wireless enabled
Blinking:
NPort can’t establish WLAN connection with AP
(Infrastructure) or station (Ad-Hoc)
Off
Serial 1
Function
Steady on:
Wireless not enabled.
Serial port is receiving data.
Serial port is transmitting data.
No data is flowing to or from the serial port.
1 Red - the signal strength is between 0% and 20%
2 Red - the signal strength is between 21% and 40%
3 Green - the signal strength is between 41% and 60%
Green
4 Green - the signal strength is between 61% and 80%
5 Green - the signal strength is between 81% and 100%
End Panel LED Indicators
Name
Color
Orange
Ethernet
Function
10 Mbps Ethernet connection
Green
100 Mbps Ethernet connection
Off
Ethernet cable is disconnected
2-3
NPort W2150A/W2250A Series
Getting Started
Pull High/Low Resistors for RS-422/485
You may need to set the pull high/low resistors when termination resistors are used for certain RS-422 or
RS-485 environments.
S2 (Serial 1)
DIP 1
DIP 2
DIP 3
DIP 4
S3 (Serial 2)
Pull high resistor
Pull low resistor
Terminal resistor
Reserved
ON
1 KΩ
1 KΩ
120 Ω
-----
OFF
*150 KΩ
*150 KΩ
*N/A
-----
*Default
S3 is for NPort W2250A only
ATTENTION
Do not use the 1 KΩ setting while in RS-232 mode. Doing so will degrade the RS-232 signals and reduce the
effective communication distance.
2-4
NPort W2150A/W2250A Series
Getting Started
Placement Options
The NPort can be placed on a desktop or other horizontal surface. You can also install the NPort on a DIN-rail
or on the wall.
Wall Mounting
DIN-Rail Mounting
Connecting the Hardware
ATTENTION
Before connecting the hardware, follow these important wiring safety precautions:
Disconnect power source
Do not install or wire this unit or any attached devices with the power connected. Disconnect the power before
installation by removing the power cord before installing and/or wiring your unit.
Follow maximum current ratings
Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes
dictating the maximum current allowable for each wire size.
If the current goes above the maximum ratings, the wiring could overheat, causing serious damage to your
equipment.
Use caution - unit may get hot
The unit will generate heat during operation, and the casing may feel hot to the touch. Take care when handling
unit. Be sure to leave adequate space for ventilation.
The following guidelines will help ensure trouble-free signal communication with the NPort.
•
Use separate paths to route wiring for power and devices to avoid interference. Do not run signal or
communication wiring and power wiring in the same wire conduit. The rule of thumb is that wiring that
shares similar electrical characteristics can be bundled together.
•
If power wiring and device wiring paths must cross, make sure the wires are perpendicular at the
intersection point.
•
Keep input wiring and output wiring separate.
•
Label all wiring to each device in the system for easier testing and troubleshooting
2-5
NPort W2150A/W2250A Series
Getting Started
Connecting to the Network
Use the supplied Ethernet cable to connect the NPort to your Ethernet network. If the cable is properly
connected, the NPort will indicate a valid connection to the Ethernet as follows:
•
A green Ethernet LED indicates a valid connection to a 100 Mbps Ethernet network.
•
An orange Ethernet LED indicates a valid connection to a 10 Mbps Ethernet network.
•
A flashing Ethernet LED indicates that Ethernet packets are being transmitted or received.
Connecting the Power
Connect the VDC power line (12 to 48 V) to the NPort’s power jack or terminal block. If power is properly
connected, the “Ready” LED will initially glow red. When the system is ready, the “Ready” LED will turn green.
Connecting to a Serial Device
Use a serial cable to connect your serial device to a serial port on the NPort.
2-6
3
3.
Initial IP Configuration
The following topics are covered in this chapter:
 Overview
 Factory Default IP Settings
 Using ARP to Assign IP Address
 Using the Telnet Console to Assign IP Address
 Using the Serial Console to Assign IP Address
NPort W2150A/W2250A Series
Initial IP Configuration
Overview
This chapter presents several ways to assign the NPort’s IP address for the first time. Please refer to Chapter
2 for instructions on connecting to the network.
The web console is the recommended method for configuring the NPort. Please refer to Chapter 5 and 6 for
details on using the web console for configuration.
ATTENTION
The LAN and WLAN interfaces cannot be used at the same time. If the Ethernet link is active, then WLAN
connections will be disabled. If the WLAN connection is active, then the Ethernet link will be disabled.
ATTENTION
Make sure that the Ethernet cable is connected before powering up the NPort.
Factory Default IP Settings
Network Interface
IP Configuration
IP Address
Netmask
LAN
Static
192.168.126.254
255.255.255.0
WLAN
Static
192.168.127.254
255.255.255.0
If your NPort is configured to obtain its IP settings from a DHCP or BOOTP server but is unable to get a response,
it will use the factory default IP address and netmask.
ATTENTION
If you forget the IP address of your NPort, you can look it up using the NPort Search Utility. After NPort Search
Utility has found all NPorts on the network, each unit will be listed with its IP address. Please refer to Chapter
11 for additional information on using NPort Search Utility.
Using ARP to Assign IP Address
The ARP (Address Resolution Protocol) command can be used to assign an IP address to the NPort. The ARP
command tells your computer to associate the NPort’s MAC address with the specified IP address. You must
then use Telnet to access the NPort, at which point the device server’s IP address will be reconfigured. This
method only works when the NPort is configured with default IP settings.
1. Select a valid IP address for your NPort. Consult with your network administrator if necessary.
2. Obtain the NPort’s MAC address from the label on its bottom panel.
3. From the DOS prompt, execute the arp -s command with the desired IP address and the NPort’s MAC
address, as in the following example:
arp -s 192.168.200.100 00-90-E8-xx-xx-xx
In this example 192.168.200.100 is the new IP address that will be assigned to the NPort, and
00-90-E8-xx-xx-xx is the NPort’s MAC address.
4. From the DOS prompt, execute a special Telnet command using port 6000, as in the following example:
telnet 192.168.200.100 6000
In this example, 192.168.200.100 is the new IP address that will be assigned to the NPort.
3-2
NPort W2150A/W2250A Series
Initial IP Configuration
5. You will see a message indicating that the connection failed.
The NPort will automatically reboot with the new IP address. You can verify that the configuration was
successful by connecting to the new IP address with Telnet, ping, the web console, or NPort Search Utility.
Using the Telnet Console to Assign IP Address
1. Select Run… from the Windows Start menu.
2. Enter telnet 192.168.126.254 (the NPort’s default IP address) and click [OK].
3. Enter your login account and password, then press ENTER.
4. You will login to the Overview page.
3-3
NPort W2150A/W2250A Series
Initial IP Configuration
5. Press N or use the cursor keys to select Network and press ENTER.
6. Press E or use the cursor keys to select Ethernet and press ENTER.
3-4
NPort W2150A/W2250A Series
Initial IP Configuration
7. Use the cursor keys to navigate between the different fields. For IP address, Netmask, and Gateway,
enter the desired values directly. For IP configuration and LAN speed, press ENTER to open a submenu
and select between the available options.
8. Press ESC to return to the menu. When prompted, press Y to save the configuration changes.
The NPort will reboot with the new IP settings. You can telnet to the new IP to login again.
3-5
NPort W2150A/W2250A Series
Initial IP Configuration
Using the Serial Console to Assign IP Address
Before using the NPort’s serial console, turn off the power and use a serial cable to connect the NPort console
port to your computer’s serial port. Port 1 on the NPort serves as the console port. Use Port 1 connecting to the
console port with a serial-based terminal or terminal emulator program, such as Windows HyperTerminal. You
may also download PComm Lite at www.moxa.com. The terminal type should be set as ANSI or VT100, and the
serial communication parameters should be set as 19200, 8, N, 1 (19200 for baud rate, 8 for data bits, None
for parity, and 1 for stop bits). As soon as the connection is open, you will be presented with a text menu
displaying the NPort W2150A/W2250A Series general settings. Please refer to Chapter 4 for a description of the
available settings. The following instructions, we recommend using PComm Terminal Emulator, which can be
downloaded free of charge from www.moxa.com, to carry out the configuration procedure.
1. Connect your PC’s serial port to the NPort’s console port.
2. Open your terminal emulator program, such as Windows HyperTerminal. We recommend using PComm
Terminal Emulator, which can be downloaded for free at www.moxa.com.
3. In your terminal emulator program, configure the communication parameters for the serial port on the PC.
The parameters should be set to 19200 for baud rate, 8 for data bits, None for parity, and 1 for stop bits.
4. In your terminal emulator program, set the terminal type to ANSI or VT100. If you select Dumb Terminal
as the terminal type, some of the console functions—especially the “Monitor” function—may not work
properly.
3-6
NPort W2150A/W2250A Series
Initial IP Configuration
5. Hold the grave accent key (`) down and power up the NPort.
The continuous string of grave accent characters triggers the NPort to switch from data mode to console
mode.
6. The serial console will open and will be functionally identical to the Telnet console. Please refer to the Telnet
console section for instructions on how to navigate the console and configure the IP settings.
3-7
4
4.
Introduction to Operation Modes
The following topics are covered in this chapter:
 Overview
 RealCOM Mode
 RFC2217 Mode
 TCP Server Mode
 TCP Client Mode
 UDP Mode
 Pair Master and Pair Connection Modes
 Ethernet Modem Mode
NPort W2150A/W2250A Series
Introduction to Operation Modes
Overview
This chapter introduces the different serial port operation modes that are available on the NPort
W2150A/W2250A Series. Each serial port on the NPort is configured independently of the other ports, with its
own serial communication parameters and operation mode. The serial port’s operation mode determines how
it interacts with the network, and different modes are available to encompass a wide variety of applications and
devices.
RealCOM and RFC2217 modes allow serial-based software to access the NPort serial port as if it were a local
serial port on a PC. These modes are appropriate when your application relies on Windows or Linux software
that was originally designed for locally attached COM or TTY devices. With these modes, you can access your
devices from the network using your existing COM/TTY-based software, without investing in additional
software.
Three different socket modes are available for user-developed socket programs: TCP Server, TCP Client, and
UDP Server/Client. For TCP applications, the appropriate mode depends on whether the connection will be
hosted or initiated from the NPort serial port or from the network. The main difference between the TCP and
UDP protocols is that TCP guarantees delivery of data by requiring the recipient to send an acknowledgement
to the sender. UDP does not require this type of verification, making it possible to offer speedier delivery. UDP
also allows multicasting of data to groups of IP addresses and would be suitable for streaming media or
non-critical messaging applications such as LED message boards.
Pair Connection Slave and Master modes are designed for serial-to-serial communication over Ethernet, in
order to overcome traditional limitations with serial transmission distance.
In Ethernet Modem mode, the NPort acts as an Ethernet modem, providing a network connection to a host
through the serial port.
RealCOM Mode
RealCOM mode is designed to work with NPort drivers
that are installed on a network host. COM drivers are
provided for Windows systems, and TTY drivers are
provided for Linux and UNIX systems. The driver
establishes a transparent connection to the attached
serial device by mapping a local serial port to the
NPort serial port. RealCOM mode supports up to four
simultaneous connections, so multiple hosts can
collect data from the attached device at the same
time.
ATTENTION
RealCOM drivers are installed and configured through NPort Windows Driver Manager.
RealCOM mode allows you to continue using your serial communications software to access devices that are
now attached to your NPort device server. On the host, the NPort RealCOM driver automatically intercepts data
sent to the COM port, packs it into a TCP/IP packet, and redirects it to the network. At the other end of the
connection, the NPort device server accepts the Ethernet frame, unpacks the TCP/IP packet, and sends the
serial data to the appropriate device.
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Introduction to Operation Modes
ATTENTION
In RealCOM mode, several hosts can have simultaneous access control over the NPort serial port. If necessary,
you can limit access by using the NPort’s Accessible IP settings. Please refer to Chapter 8 for additional
information on Accessible IP settings.
RFC2217 Mode
RFC-2217 mode is similar to RealCOM mode, since it relies on a driver to transparently map a virtual COM port
on a host computer to a serial port on the NPort. The RFC2217 standard defines general COM port control
options based on the Telnet protocol and supports one connection at a time. Third party drivers supporting
RFC-2217 are widely available on the Internet and can be used to implement virtual COM mapping.
TCP Server Mode
In TCP Server mode, the NPort serial port is assigned
an IP:port address that is unique on your TCP/IP
network. It waits for the host computer to establish a
connection to the attached serial device. This
operation mode also supports up to eight
simultaneous connections, so multiple hosts can
collect data from the attached device at the same
time.
Data transmission proceeds as follows:
A host requests a connection to the NPort serial port.
Once the connection is established, data can be
transmitted in both directions—from the host to the
device, and from the device to the host.
TCP Client Mode
In TCP Client mode, the NPort actively establishes a
TCP connection to a specific network host when data
is received from the attached serial device. After the
data has been transferred, the NPort can
automatically disconnect from the host computer
through the Inactivity time settings. Please refer to
Chapter 7 for details on these parameters.
Data transmission proceeds as follows:
The NPort requests a connection from the host.
The connection is established and data can be
transmitted in both directions between the host and
device.
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NPort W2150A/W2250A Series
Introduction to Operation Modes
UDP Mode
UDP is similar to TCP but is faster and more efficient.
Data can be broadcast to or received from multiple
network hosts. However, UDP does not support
verification of data and would not be suitable for
applications where data integrity is critical. It is ideal
for message display applications.
Pair Connection Modes
Pair Connection Master and Slave modes connect two
NPort device servers over a network for serial-to-serial
communication. A device attached to one NPort can
then communicate transparently to a device attached
to the other NPort, as if the two devices were
connected by a serial cable. Both data and modem
control signals are exchanged, except for DCD signals.
This can be used to overcome traditional limitations
with serial communication distance and introduces
many new possibilities for serial-based device control.
Ethernet Modem Mode
Ethernet Modem mode is designed for use with legacy
operating systems, such as MS-DOS, that do not
support TCP/IP Ethernet. By connecting the properly
configured NPort serial port to the MS-DOS computer’s
serial port, it is possible to use legacy software to
transmit data over the Ethernet when the software was
originally designed to transmit data over a modem.
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5.
Web Console: Basic Settings
The following topics are covered in this chapter:
 Overview
 Basic Settings
NPort W2150A/W2250A Series
Web Console: Basic Settings
Overview
This chapter introduces the NPort web console and explains how to configure the basic settings.
The NPort can be configured from anywhere on the network through its web console. Simply point the browser
to the device server’s IP address to open the web console. Network settings, operation mode, and other items
can all be configured through the browser.
Web Browser Settings
In order to use the web console, you will need to have cookies enabled
for your browser. Please note that the web console uses cookies only for
password transmission. For Internet Explorer, cookies can be enabled
by right-clicking the Internet Explorer icon on your desktop and
selecting Properties from the context menu.
On the Security tab, click “Custom Level…” and enable these two items:
Allow cookies that are stored on your computer.
Allow per-session cookies (not stored).
ATTENTION
If you are not using Internet Explorer, cookies are usually enabled through a web browser setting such as
“allow cookies that are stored on your computer” or “allow per-session cookies.”
Navigating the Web Console
To open the web console, enter your device server’s IP address in the website address line. If you are
configuring the NPort for the first time over an Ethernet cable, you will use the default IP address,
192.168.126.254.
There are two account types: admin and user. If you enter the system with admin account, you will have the
right to read and write. If you enter the system with user account, you will only have the right to read.
If prompted, enter the console password. You will only be prompted for a password if you have enabled
password protection on the device server. The password will be transmitted with MD5 encryption over the
Ethernet.
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Web Console: Basic Settings
ATTENTION
If you have forgotten the password, you can use the reset button to load factory defaults, but this will erase all
previous configuration information.
The web console will appear as shown below.
Settings are presented on pages that are organized by folder. Select the desired folder in the left navigation
panel to open that page. The page will be displayed in the main window on the right. Certain folders can be
expanded by clicking the adjacent “–” symbol.
For example, if you click Basic Settings in the navigation panel, the main window will show a page of basic
settings that you can configure.
After you have made changes on a page, you must click [Submit] in the main window before jumping to
another page. Your changes will be lost if you do not click [Submit].
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Web Console: Basic Settings
Once you click [Submit] button, the device server will reboot and with a beep alarm.
Basic Settings
On the Basic Settings page, you can configure Server name, Server location, Time zone (24-hour),
Local time, and Time server.
Server Name
Default
NPortW2150A_ or NPortW2250A_
Options
free text (e.g., “Server 1”)
Description
This is an optional free text field to help you differentiate one device server from another. It
does not affect operation of the NPort device server.
Server Location
Default
Options
free text (e.g., “Bldg 1, 2nd Floor”)
Description
This is an optional free text field to help you differentiate one device server from another. It
does not affect operation of the NPort device server.
Time Zone
Default
Options
(GMT)Greenwich Mean Time
(GMT)Greenwich Mean Time
(GMT-01:00)Azores, Cape Verde Is.
(GMT-02:00)Mid-Atlantic etc.
Description
This field shows the currently selected time zone and allows you to select a different time
zone.
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Web Console: Basic Settings
Local Time
Default
Options
Date (yy:mm:dd), Time (hh:mm:ss)
Description
The NPort has a built-in real-time clock that allows you to add time information to functions
such as the automatic warning e-mail or SNMP trap. This field shows the current time
according to the NPort’s built-in real-time clock. This is not a live field, so you will need to
refresh the browser to get an updated reading.
Change the correct date or time, and click [Submit]. The change will take effect directly, and
shows Basic Setting OK!.
ATTENTION
There is a risk of explosion if the real-time clock battery is replaced incorrectly!
The real time clock is powered by a lithium battery. We strongly recommend that you obtain assistance from
a Moxa support engineer before replacing the battery. Please contact the Moxa RMA service team if you need
to change the battery.
Time Server
Default
Options
IP address or domain name (e.g., “192.168.1.1” or “time.nist.gov”)
Description
This optional field specifies your time server’s IP address or domain name, if a time server is
used in your network. The NPort supports SNTP (RFC-1769) for automatic time calibration.
The device server will request time information from the specified time server every 10
minutes.
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6.
Web Console: Network Settings
The following topics are covered in this chapter:
 Overview
 Network Settings
 General Settings
 Ethernet Settings
 WLAN Settings
 Advanced Settings
NPort W2150A/W2250A Series
Web Console: Network Settings
Overview
This chapter explains how to configure all settings located under the Network Settings folder in the NPort web
console.
Network Settings
General Settings
On the General Settings page in the Network Settings folder, you can modify DNS server 1 and 2.
DNS Server 1 and 2
Default
Options
IP address (e.g., “192.168.1.1”)
Description
This field is for the DNS server’s IP address, if applicable. With the DNS server configured, the
NPort device server can use domain names instead of IP addresses to access hosts.
Domain Name System (DNS) is how Internet domain names are identified and translated into
IP addresses. A domain name is an alphanumeric name, such as www.moxa.com, that it is
usually easier to remember than the numeric IP address. A DNS server is a host that
translates a text-based domain name into an IP address in order to establish a TCP/IP
connection. When the user wants to visit a particular website, the user’s computer sends the
domain name (e.g., www.moxa.com) to a DNS server to request that website’s numeric IP
address. When the IP address is received from the DNS server, the user’s computer uses that
information to connect to the website’s web server.
The NPort will play the role of a DNS client, actively querying the DNS server for the IP
address associated with a particular domain name.
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Web Console: Network Settings
Ethernet Settings
On the Ethernet Settings page in the Network Settings folder, you can modify IP configuration, IP
address, Netmask, and Gateway.
You must assign a valid IP address to the NPort before it will work in your network environment. Your network
system administrator should provide you with an IP address and related settings for your network. The IP
address must be unique within the network; otherwise the NPort will not have a valid connection to the network.
First-time users should refer to Chapter 3, “Initial IP Address Configuration,” for more information.
IP Configuration
Default
Static
Options
Static, DHCP, DHCP/BOOTP, BOOTP
Description
This field determines how the NPort’s IP address will be assigned.
Static: IP address, netmask, and gateway are user-defined.
DHCP: IP address, netmask, gateway, DNS, and time server are assigned by DHCP server.
DHCP/BOOTP: IP address, netmask, gateway, DNS, and time server are assigned by DHCP
server. IP address is assigned by BOOTP server if DHCP server does not respond.
BOOTP: IP address is assigned by BOOTP server.
IP Address
Default
192.168.126.254
Options
IP address (e.g., “192.168.1.1”)
Description
This field is for the IP address that will be assigned to your NPort device server. An IP address
is a number assigned to a network device (such as a computer) as a permanent address on
the network. Computers use the IP address to identify and talk to each other over the
network. Choose a proper IP address that is unique and valid in your network environment.
If your device server will be assigned a dynamic IP address, set the “IP configuration”
parameter appropriately.
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Web Console: Network Settings
Netmask
Default
255.255.255.0
Options
Netmask setting (e.g., “255.255.0.0”)
Description
This field is for the subnet mask. A subnet mask represents all of the network hosts at one
geographic location, in one building, or on the same local area network. When a packet is
sent out over the network, the NPort device server will use the subnet mask to check whether
the desired TCP/IP host specified in the packet is on the local network segment. If the
address is on the same network segment as the device server, a connection is established
directly from the device server. Otherwise, the connection is established through the
gateway as specified in the “Gateway” parameter.
Gateway
Default
Options
IP address (e.g., “192.168.1.1”)
Description
This field is for the IP address of the gateway, if applicable. A gateway is a network computer
that acts as an entrance to another network. Usually, the computers that control traffic
within the network or at the local Internet service provider are gateway nodes. The NPort
device server needs to know the IP address of the default gateway computer in order to
communicate with the hosts outside the local network environment. Consult your network
administrator if you do not know how to set this parameter.
ATTENTION
In dynamic IP environments, the NPort will send 3 requests every 30 seconds to the DHCP or BOOTP server
until the network settings have successfully been assigned. The first request will time out after one second; the
second request will time out after three seconds, and the third request will timeout after five second. If the
DHCP or BOOTP server is unavailable, the NPort will use the factory default network settings.
WLAN Settings
WLAN
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NPort W2150A/W2250A Series
Web Console: Network Settings
The WLAN page is located under WLAN Settings in the Network Settings folder. You can modify IP
configuration, IP address, Netmask, and Gateway for your WLAN.
The NPort W2150A/W2250A Series supports IEEE 802.11a/b/g wireless network interfaces. The supported IP
configurations are static and dynamic (BOOTP, DHCP, or BOOTP+DHCP). Users can set up the IP configuration
with the serial console, or the Web/Telnet consoles through the NPort’s Ethernet interface. For detailed
information about configuring IP configuration, IP address, Netmask, and Gateway, see the previous
section, Ethernet Configuration.
IP Configuration
Default
Static
Options
Static, DHCP, DHCP/BOOTP, BOOTP
Description
This field determines how the NPort’s IP address will be assigned.
Static: IP address, netmask, and gateway are user-defined.
DHCP: IP address, netmask, gateway, DNS, and time server are assigned by DHCP server.
DHCP/BOOTP: IP address, netmask, gateway, DNS, and time server are assigned by DHCP
server. IP address is assigned by BOOTP server if DHCP server does not respond.
BOOTP: IP address is assigned by BOOTP server.
IP Address
Default
192.168.127.254
Options
IP address (e.g., “192.168.1.1”)
Description
This field is for the IP address that will be assigned to your NPort device server. An IP address
is a number assigned to a network device (such as a computer) as a permanent address on
the network. Computers use the IP address to identify and talk to each other over the
network. Choose a proper IP address that is unique and valid in your WLAN environment. If
your device server will be assigned a dynamic IP address, set the “IP configuration”
parameter appropriately.
Netmask
Default
255.255.255.0
Options
Netmask setting (e.g., “255.255.0.0”)
Description
This field is for the subnet mask. A subnet mask represents all of the network hosts at one
geographic location, in one building, or on the same local area network. When a packet is
sent out over the network, the NPort device server will use the subnet mask to check whether
the desired TCP/IP host specified in the packet is on the local network segment. If the
address is on the same network segment as the device server, a connection is established
directly from the device server. Otherwise, the connection is established through the
gateway as specified in the “Gateway” parameter.
Gateway
Default
Options
IP address (e.g., “192.168.1.1”)
Description
This field is for the IP address of the gateway, if applicable. A gateway is a network computer
that acts as an entrance to another network. Usually, the computers that control traffic
within the network or at the local Internet service provider are gateway nodes. The NPort
device server needs to know the IP address of the default gateway computer in order to
communicate with the hosts outside the local network environment. Consult your network
administrator if you do not know how to set this parameter.
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Web Console: Network Settings
Profile
The Profile page is located under WLAN Settings in the Network Settings folder. This is where you
configure the NPort for Ad-hoc or Infrastructure operation. Different settings are available depending on
whether you select Ad-hoc Mode or Infrastructure Mode.
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Web Console: Network Settings
Network Type
Default
Infrastructure Mode
Options
Infrastructure Mode, Ad-hoc Mode
Description
This field specifies whether the NPort will operate in Ad-hoc or Infrastructure Mode. For all
wireless networking devices, there are two possible modes for communication with another
wireless device. Devices that are configured for Ad-hoc Mode automatically detect and
communicate directly with each other and do not require a wireless access point (AP) or
gateway. Wireless devices that are configured for Infrastructure Mode do not communicate
directly with each other, but through a wireless access point (AP).
Devices must be configured for the same mode in order to communicate with each other.
Devices in Ad-Hoc Mode will only recognize other devices in Ad-Hoc Mode, and likewise for
devices in Infrastructure Mode.
Example of Ad-Hoc Mode
Example of Infrastructure Mode
After setting the Network type, you will need to adjust the General and Security settings for
the profile. In Ad-hoc Mode, only one profile is available. In Infrastructure Mode, three
profiles can be defined.
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Web Console: Network Settings
General Settings for WLAN Profile
The General page is opened through the Profile page, under WLAN Settings in the Network Settings
folder. You can type a profile name to help you differentiate one profile from another. It does not affect
operation of the NPort. After selecting Ad-hoc or Infrastructure Mode, click [General] to open the General
page for the selected profile. In Ad-hoc Mode and Infrastructure Mode, only one profile is available.
In Ad-hoc Mode
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NPort W2150A/W2250A Series
Web Console: Network Settings
In Infrastructure Mode
On the General page, you can configure Profile name, Operation mode, and SSID. Additional settings are
also available depending on whether you select Ad-hoc Mode or Infrastructure Mode.
Profile Name
Default
Ad-hoc (in Ad-hoc Mode)
Infrastructure (in Infrastructure Mode)
Options
free text (e.g., “Primary Connection”)
Description
This is a free text field to help you differentiate one profile from another. It does not affect
operation of the NPort.
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Web Console: Network Settings
Operation Mode
Default
802.11b/g for Ad-Hoc Mode.
Auto, 802.11b/g, and 802.11a for Infrastructure Mode.
Options
Auto, 802.11a, 802.11b/g
Description
This field determines which wireless standard will be used by the selected profile. 802.11a,
802.11b, and 802.11g are supported.
Auto: In Ad-hoc Mode, the NPort will scan the 2.4G wireless band and will automatically
select the appropriate wireless standard for communication with any other wireless devices
that are detected. In Infrastructure Mode, the NPort will automatically select between
802.11a, 802.11b and 802.11g according to the settings of the AP.
802.11a: This setting is only available in Infrastructure Mode. The Unlicensed National
Information Infrastructure (UNII) 5 GHz band is used for communication, which is different
from the RF band used by 802.11b and 802.11g. Consequently, 802.11a devices will not be
able to communicate with 802.11b or 802.11g devices. (Multi-mode 802.11a/b/g APs or
client adapters can be used to resolve this.) Transmission rates up to 54Mbps are supported.
802.11b/g: This option means our device will support for 802.11b or 802.11g.
802.11b: This is the well-known “Wi-Fi” standard, also referred to as “802.11 High-Rate
(HR)”. Wireless communication is in the 2.4 GHz ISM band, using the DSSS spread spectrum
transmission scheme. 802.11b supports data rates of 1 Mbps, 2 Mbps, 5.5 Mbps, and 11
Mbps.
802.11g: This is currently the most widely used standard for wireless LANS and is sometimes
referred to as “54g™”. Communication is in the 2.4 GHz ISM band and uses Orthogonal
Frequency Division Multiplexing (OFDM). Data rates up to 54 Mbps are supported.
SSID
Default
Default
Options
free text (e.g., “Coffeeshop WLAN”)
Description
This field specifies the SSID, or name, of the wireless network (SSID) that will be used by the
NPort. Wireless devices must use the same SSID in order to communicate with each other.
Channel (Ad-hoc mode only)
Default
Options
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
Description
This field is for Ad-Hoc Mode only and specifies the radio channel to use for the wireless
network.
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Web Console: Network Settings
Fast Roaming (Infrastructure mode only)
Default
Disable
Options
Disable, Enable
Description
This field is only available in Infrastructure Mode and is used to specify the
W2150A/W2250A roaming behavior. Roaming is the ability to connect to different APs so
wireless communication is not confined to one area or one particular AP. The
W2150A/W2250A will only roam between APs, as specified by the SSID.
Disable: Fast Roaming function will be disabled.
W2150A/W2250A will scan all available channels and roam between APs as specified by the
SSID. It scans the channel when booting up and will associate with the highest signal
strength AP. Only when the associated AP is loses, then it will re-associate again.
Enable: Fast Roaming function will be enabled.
NPort W2150A/W2250A will only scan the pre-defined "Scan Channels - 1, Scan Channels
- 2 & Scan Channels – 3" and roam between APs as specified by the SSID.
It scans the channel and will associate with the highest signal strength AP. It also scans the
channel regularly and will re-associate with the highest signal strength AP (if there is) by
automatically.
Scan channels – 1, Scan channels – 2, Scan channels – 3 (Infrastructure mode
only)
Default
N/A
Options
1 through 14, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
149, 153, 157, 161
Description
This field is for fast roaming under Infrastructure Mode and specifies the radio channel to use
for the wireless network. Choose the channel according to the factory setting of AP.
Security Settings for WLAN Profile
The Security page is opened through the Profile page, under WLAN Settings in the Network Settings
folder. After selecting Ad-hoc or Infrastructure Mode, click [Security] to open the Security page for the
selected profile. In Ad-hoc Mode, only one profile is available, whereas three profiles are available in
Infrastructure Mode.
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Web Console: Network Settings
In Ad-hoc Mode
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Web Console: Network Settings
In Infrastructure Mode
You will need to configure Authentication and Encryption. These settings must match the settings on the
wireless device at the other end of the connection (such as the AP). Different settings and options are available
depending on how Authentication and Encryption are configured.
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Web Console: Network Settings
Authentication
Default
Open System
Options
Open System, Shared Key, WPA, WPA-PSK, WPA2, WPA2-PSK
Description
This field specifies how wireless devices will be authenticated. Only authenticated devices will
be allowed to communicate with the NPort. If a RADIUS server is used, this setting must
match the setting on the RADIUS server.
Open System: The NPort will simply announce a desire to associate with another station or
access point. No authentication is required. For Ad-hoc Mode, this is the only option for
authentication, since Ad-hoc Mode was designed for open communication.
Shared Key: This option is only available in Infrastructure Mode. Authentication involves a
more rigorous exchange of frames to ensure that the requesting station is authentic. WEP
encryption is required.
WPA: This is a managed authentication option that is only available in Infrastructure Mode.
WPA was created by the Wi-Fi Alliance, the industry trade group that owns the Wi-Fi
trademark and certifies devices with the Wi-Fi name. It is based on Draft 3 of the IEEE
802.11i standard. Each user uses a unique key for authentication, distributed from an IEEE
802.1X authentication server, also known as a RADIUS server. This option is also referred to
as WPA Enterprise Mode, since it is intended to meet rigorous enterprise security
requirements. Tunneled authentication is supported, depending on the EAP method selected.
WPA-PSK: This is an unmanaged authentication option that is only available in Infrastructure
Mode. Instead of a unique key for each user, a pre-shared key (PSK) is manually entered on
the access point to generate an encryption key that is shared among all users. Consequently,
this method does not scale well for enterprise. A PSK that uses a mix of letters, numbers and
non-alphanumeric characters is recommended. This option is also referred to as WPA
Personal Mode, since it is designed for the needs and capabilities of small home and office
WLANs.
WPA2: This is a managed authentication option that is only available in Infrastructure Mode.
WPA2 implements the mandatory elements of 802.11i. Supported encryption algorithms
include TKIP, Michael, and AES-based CCMP, which is considered fully secure. Since March
13, 2006, WPA2 has been mandatory for all Wi-Fi-certified devices. This option may also be
referred to as WPA Enterprise Mode. Tunneled authentication is supported, depending on the
EAP method selected.
WPA2-PSK: This is an unmanaged authentication option that is only available in
Infrastructure Mode. It employs WP2 encryption algorithms but relies on a PSK for
authentication. A PSK that uses a mix of letters, numbers and non-alphanumeric characters
is recommended. This option can also be referred to as WPA Personal Mode.
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Web Console: Network Settings
Encryption
Default
Disable
Options
Disable, WEP, TKIP, AES-CCMP
Description
This field specifies the type of encryption to use during wireless communication. Different
encryption methods are available depending on the Authentication setting. Also, each
encryption method has its own set of parameters that may also require configuration.
Disable: No encryption is applied to the data during wireless communication. This option is
only available if Authentication is set to Open System.
WEP: Wired Equivalent Privacy (WEP) is only available for Open System and Shared Key
authentication methods. Data is encrypted according to a key. The NPort supports both 64
and 128-bit keys. This method may deter casual snooping but is not considered very secure.
TKIP: Temporal Key Integrity Protocol (TKIP) is only available for WPA, WPA2, WPA-PSK, and
WPA2-PSK authentication methods. TKIP is part of a draft standard from the IEEE 802.11i
working group and utilizes the RC4 stream cipher with 128-bit keys for encryption and 64-bit
keys for authentication. TKIP improves on WEP by adding a per-packet key mixing function
to de-correlate the public initialization vectors (IVs) from weak keys.
AES-CCMP: This is a powerful encryption method that is only available for WPA, WPA2,
WPA-PSK, and WPA2-PSK authentication methods. Advanced Encryption Standard (AES) is
the block cipher system used by the Robust Secure Network (RSN) protocol and is equivalent
to the RC4 algorithm used by WPA. CCMP is the security protocol used by AES, equivalent to
TKIP for WPA. Data undergoes a Message Integrity Check (MIC) using a well-known and
proven technique called Cipher Block Chaining Message Authentication Code (CBC-MAC).
The technique ensures that even a one-bit alteration in a message produces a dramatically
different result. Master keys are not used directly but are used to derive other keys, each of
which expire after a certain amount of time. Messages are encrypted using a secret 128-bit
key and a 128-bit block of data. The encryption process is complex, but the administrator
does not need to be aware of the intricacies of the computations. The end result is encryption
that is much harder to break than even WPA.
PSK Passphrase
Default
Options
free text (e.g., “This is the WLAN passphrase”)
Description
This field is only available for WPA-PSK and WPA2-PSK authentication methods. If the NPort’s
passphrase does not match the AP’s passphrase, the connection will be denied. A PSK of
sufficient strength—one that uses a mix of letters, numbers and non-alphanumeric
characters—is recommended.
6-15
NPort W2150A/W2250A Series
Web Console: Network Settings
Security Settings for WEP Encryption
When Encryption is set to WEP on the Security page for the WLAN profile, you will be able to configure WEP
key length, WEP key index, and WEP key source. Other settings will be displayed depending on how WEP
key source is configured.
WEP Key Length
Default
64bits
Options
64bits, 128bits
Description
This field specifies the length of the WEP key. 64bits is the industry standard for WEP, but
128bits provides better protection.
WEP Key Index
Default
Options
1 through 4
Description
This field specifies the primary WEP key to use for the WLAN.
6-16
NPort W2150A/W2250A Series
Web Console: Network Settings
WEP Key Source
Default
Manual
Options
Manual, Generate WEP keys by passphrase
Description
This field specifies whether the WEP key will be generated manually or through a
user-specified passphrase. A passphrase is equivalent to a free-text password that will be
used to generate the WEP key. A passphrase is typically easier to remember and enter than
a long and complicated WEP key.
WEP Passphrase
Default
Options
free text (e.g., “This is the WEP passphrase”)
Description
This field is only available if WEP key source is set to “Generate WEP keys by passphrase”. A
standard hexadecimal password will be generated using the supplied passphrase. For
example, if “404tech” is entered, the WEP key will be “DB971608E942FC39BD89FC4ADB”.
WEP Key Format
Default
ASCII
Options
ASCII, HEX
Description
This field is only available if WEP key source is set to “Manual”. It specifies the format you will
use to enter the WEP key.
WEP Key 1 Through 4
Default
Options
free text in ASCII or HEX
Description
These fields are only available if WEP key source is set to “Manual”. Enter each WEP key in
ASCII or HEX as specified in WEP key format. The number of characters required for each key
depends on WEP key length and WEP key format.
WEP Key Length
WEP Key Format
64bits
ASCII
5 characters
HEX
10 characters
ASCII
13 characters
HEX
26 characters
128bits
6-17
Key Length
NPort W2150A/W2250A Series
Web Console: Network Settings
Security Settings for WPA, WPA2
When WPA or WPA2 is used for authentication, you will also need to configure EAP method in the Security
settings for the WLAN profile. Other settings will also be displayed depending on how EAP method is
configured.
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NPort W2150A/W2250A Series
Web Console: Network Settings
There are two parts to WPA and WPA2 security, authentication and data encryption.
•
Authentication occurs before access is granted to a WLAN. Wireless clients such as the NPort
W2150A/W2250A Series are first authenticated by the AP according to the authentication protocol used by
the RADIUS server. Depending on the WLAN security settings, an EAP tunnel can be used to scramble the
username and password that is submitted for authentication purposes.
•
Encryption occurs after WLAN access has been granted. For all wireless devices, data is first encrypted
before wireless transmission, using mutually agreed-upon encryption protocol.
EAP Method
Default
PEAP
Options
TLS, PEAP, TTLS, LEAP
Description
This field specifies the EAP method to use for authentication. Four methods are supported.
TLS: Transport Layer Security (TLS) was created by Microsoft and accepted by the IETF as
RFC 2716: PPP EAP TLS Authentication Protocol. Passwords and tunneled authentication are
not used. A user certificate and user private key are used to identify the NPort. The NPort’s
user certificate and user private key must already be installed on the RADIUS server.
PEAP: Protected Extensible Authentication Protocol (PEAP) is a proprietary protocol which
was developed by Microsoft, Cisco and RSA Security.
TTLS: Tunneled Transport Layer Security (TTLS) is a proprietary protocol which was
developed by Funk Software and Certicom, and is supported by Agere Systems, Proxim, and
Avaya. TTLS is being considered by the IETF as a new standard. For more information on
TTLS, read the draft RFC EAP Tunneled TLS Authentication Protocol.
LEAP: Lightweight Extensible Authentication Protocol (LEAP) is a proprietary protocol which
was developed by Cisco. LEAP doesn’t check certificate during the authentication process.
Tunneled Authentication
Default
PAP (when using TTLS)
GTC (when using PEAP)
Options
GTC, MD5, MSCHAP V2 (when using PEAP)
PAP, CHAP, MSCHAP, MSCHAP V2, EAP-MSCHAP V2, EAP-GTC,
EAP-MD5 (when using TTLS)
Description
This field specifies the encryption method to use during the authentication process. Different
methods are available depending on the EAP Method setting.
Username
Default
Options
free text (e.g., “Smith_John”)
Description
This field specifies the username that will be used to gain access to the WLAN. The correct
username and password must be provided for access to be granted.
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NPort W2150A/W2250A Series
Web Console: Network Settings
Password
Default
Options
free text (e.g., “Password123”)
Description
This field specifies the password that will be used to gain access to the WLAN. The correct
username and password must be provided for access to be granted.
Anonymous Username
Default
Options
free text (e.g., “Anyuser”)
Description
This field specifies the anonymous username to use when initiating authentication. After the
RADIUS Server has been verified by certificate, the true username and password will be used
to complete the authentication process.
Verify Server Certificate
Default
Disable
Options
Disable, Enable
Description
Disable: The certificate from the RADIUS server will be ignored.
Enable: The certificate from the RADIUS server will be used to authenticate access to the
WLAN. The RADIUS server’s trusted server certificate must already be installed on the NPort.
To install a trusted server certificate, visit the corresponding page in the System
Management> Certificate folder.
Trusted Server Certificate
This field is available for PEAP, TLS, and TTLS EAP methods only. It displays information on the trusted server
certificate that is installed on the NPort. To install a trusted server certificate, visit the corresponding page in
the System Management > Certificate folder.
User Certificate
This field is available only when EAP method has been set to TLS. It displays information on the user certificate
that is installed on the NPort. To install a user certificate, visit the corresponding page in the System
Management > Certificate folder.
User Private Key
This field is available only when EAP method has been set to TLS. It displays information on the user private key
on the NPort.
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NPort W2150A/W2250A Series
Web Console: Network Settings
Advanced Settings
On the Advanced Settings page in the Network Settings folder, you can modify Gratuitous ARP.
Gratuitous ARP
Default
Disabled
Options
Disabled, Enabled, 10 to 1000 sec
Description
This field specifies how often the NPort sends broadcast packets to update the ARP table. This
may be required for certain applications.
Disabled: The NPort will not send broadcast packets to update the ARP table.
Enabled: The NPort will send periodically send broadcast packets at the time interval as
specified by Send period.
6-21
7
7.
Web Console: Serial Port Settings
The following topics are covered in this chapter:
 Overview
 Serial Port Settings
 Communication Parameters
 Data Buffering/Log
NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Overview
This chapter explains how to configure all settings located under the Serial Port Settings folder in the NPort
web console.
Serial Port Settings
Operation Modes
Each serial port on the NPort is configured through the hyperlink below the column of Operating mode.
Click the link of RealCOM, it will show the Port settings page. The Operation Modes page for each serial port
is where you configure the serial port’s operation mode and related settings. For an introduction to the different
operation modes, please refer to Chapter 4.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Operation Mode
Default
RealCOM
Options
RealCOM, RFC2217, TCP Server, TCP Client, UDP, Pair_Master, Pair_Slave, EModem
Description
Along with Application, this field specifies the serial port’s operation mode, or how it will
interact with network devices. Depending on how Application is configured, different options
are available for Mode. Depending on how Mode is configured, additional settings will be
available for configuration. For an introduction to the different operation modes, please refer
to Chapter 4. RealCOM: This serial port will operate in RealCOM mode.
RFC2217: This serial port will operate in RFC2217 mode.
TCP Server: This serial port will operate in TCP Server mode.
TCP Client: This serial port will operate in TCP Client mode.
UDP: This serial port will operate in UDP mode.
Pair_Master: This serial port will operate in Pair Connection Master mode.
Pair_Slave: This serial port will operate in Pair Connection Slave mode.
EModem: This serial port will operate in Ethernet Modem mode.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Settings for RealCOM Mode
When Operation Mode is set to RealCOM on a serial port’s Operation Modes page, you will be able to
configure additional settings including TCP alive check time, Max connection, Ignore jammed IP, Allow
driver Control, Connection goes down, Packet length, Delimiter 1, Delimiter 2, Delimiter process,
and Force transmit.
TCP Alive Check Time
Default
7 min
Options
0 to 99 min
Description
This field specifies how long the NPort will wait for a response to “keep alive” packets before
closing the TCP connection. The NPort checks connection status by sending periodic “keep
alive” packets.
0: The TCP connection will remain open even if there is no response to the “keep alive”
packets.
1 to 99: If the remote host does not respond to the packet within the specified time, the
NPort will force the existing TCP connection to close.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Max connection
Default
Options
1 to 8
Description
This field specifies the maximum number of connections that will be accepted by the serial
port.
1: Only one specific host can access this serial port, and the RealCOM driver on that host will
have full control over the port.
2 to 8: This serial port will allow the specified number of connections to be opened
simultaneously. With simultaneous connections, the RealCOM driver will only provide a pure
data tunnel with no control ability. The serial communication will be determined by the NPort
rather than by your application program. Application software that is based on the RealCOM
driver will receive a driver response of “success” when using any of the Win32 API functions.
The NPort will send data only to the RealCOM driver on the host. Data received from hosts will
be sent to the attached serial device on a first-in-first-out basis.
ATTENTION
When Max connection is 2 or greater, the serial port’s communication settings (i.e., baudrate, parity, data bits,
etc.) will be determined by the NPort. Any host that opens the COM port connection must use identical serial
communication settings.
Ignore jammed IP
Default
Disable
Options
Disable, Enable
Description
This field specifies how an unresponsive IP address is handled when there are simultaneous
connections to the serial port.
Disable: All transmission will be suspended if one IP address becomes unresponsive.
Transmission will only resume when all hosts have responded.
Enable: Data transmission to the other hosts will not be suspended if one IP address becomes
unresponsive.
Allow driver control
Default
Disable
Options
Disable, Enable
Description
This field specifies how the port will proceed if driver control commands are received from
multiple hosts that are connected to the port.
Disable: Driver control commands will be ignored.
Enable: Control commands will be accepted, with the most recent command received taking
precedence.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Connection goes down
Default
always high
Options
always low, always high
Description
This field specifies what happens to the RTS and DTR signals when the Ethernet connection
goes down. For some applications, serial devices need to know the Ethernet link status
through RTS or DTR signals sent through the serial port.
Always low: The selected signal will change to low when the Ethernet connection goes down.
Always high The selected signal will remain high when the Ethernet connection goes down.
Packet length
Default
Options
0 to 1024
Description
This field specifies the maximum amount of data that is allowed to accumulate in the serial
port buffer before sending.
0: Packet length is disregarded and data in the buffer will be sent as specified by the delimiter
settings or when the buffer is full.
1 to 1024: Data in the buffer will be sent as soon it reaches the specified length.
Delimiter 1 and 2
Default
Disabled
Options
Disabled, Enabled, 00 to FF
Description
These fields are used to define special delimiter character(s) for data packing. Enable
Delimiter 1 to control data packing with a single character; enable both Delimiter 1 and 2 to
control data packing with two characters received in sequence.
When these fields are enabled, serial data will accumulate in the serial port’s buffer until the
buffer is full or until the specified delimiter character(s) are received. For example, the
carriage return character could be used as a delimiter in order to transmit each sentence or
paragraph in a separate packet. Data will be packed according to Delimiter process.
Delimiters must be incorporated into the data stream at the software or device level.
ATTENTION
When Delimiter 1 is enabled, Packet length must be set to 0.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Delimiter process
Default
Do Nothing
Options
Do Nothing, Delimiter + 1, Delimiter + 2, Strip Delimiter
Description
This field specifies how data is packed when delimiter characters are received. This field has
no effect if Delimiter 1 is not enabled.
Do nothing: Data accumulated in the serial port’s buffer will be packed, including delimiters.
Delimiter + 1: One additional character must be received before the data in the serial port’s
buffer is packed.
Delimiter + 2: Two additional characters must be received before the data in the serial port’s
buffer is packed.
Strip Delimiter: Data accumulated in the serial port’s buffer will be packed, but the delimiter
character(s) will be stripped from the data.
Force transmit
Default
0 ms
Options
0 to 65535
Description
This field controls data packing by the amount of time that elapses between bits of data.
When using this field, make sure that Inactivity time is disabled or set to a larger value.
Otherwise the connection may be closed before the data in the buffer can be transmitted.
0: If serial data is not received, the NPort will wait indefinitely for additional data.
1 to 65535: If serial data is not received for the specified amount of time, the data that is
currently in the buffer will be packed for network transmission. The optimal force transmit
time depends on your application, but it must be at least larger than one character interval
within the specified baudrate. For example, assume that the serial port is set to 1200 bps, 8
data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send a
character is 10 bits, and the time required to transfer one character is 8.3 ms, so the force
transmit time to be larger than 8.3 ms.
7-7
NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Settings for RFC2217 Mode
When Operation Mode is set to RFC2217 on a serial port’s Operation Modes page, you will be able to
configure additional settings, including TCP alive check time, TCP port, Packet length, Delimiter 1,
Delimiter 2, Delimiter process, and Force transmit.
TCP alive check time
Default
7 min
Options
0 to 99 min
Description
This field specifies how long the NPort will wait for a response to “keep alive” packets before
closing the TCP connection. The NPort checks connection status by sending periodic “keep
alive” packets.
0: The TCP connection will remain open even if there is no response to the “keep alive”
packets.
1 to 99: If the remote host does not respond to the packet within the specified time, the
NPort will force the existing TCP connection to close.
TCP port
Default
4001
Options
Description
This field specifies the TCP port number that the serial port will use to listen to connections,
and that other devices must use to contact the serial port.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Packet length
Default
Options
0 to 1024
Description
This field specifies the maximum amount of data that is allowed to accumulate in the serial
port buffer before sending.
0: Packet length is disregarded and data in the buffer will be sent as specified by the delimiter
settings or when the buffer is full.
1 to 1024: Data in the buffer will be sent as soon it reaches the specified length.
Delimiter 1 and 2
Default
Disabled
Options
Disabled, Enabled, 00 to FF
Description
These fields are used to define special delimiter character(s) for data packing. Enable
Delimiter 1 to control data packing with a single character; enable both Delimiter 1 and 2 to
control data packing with two characters received in sequence.
When these fields are enabled, serial data will accumulate in the serial port’s buffer until the
buffer is full or until the specified delimiter character(s) are received. For example, the
carriage return character could be used as a delimiter in order to transmit each sentence or
paragraph in a separate packet. Data will be packed according to Delimiter process.
Delimiters must be incorporated into the data stream at the software or device level.
Delimiter process
Default
Do Nothing
Options
Do Nothing, Delimiter + 1, Delimiter + 2, Strip Delimiter
Description
This field specifies how data is packed when delimiter characters are received. This field has
no effect if Delimiter 1 is not enabled.
Do nothing: Data accumulated in the serial port’s buffer will be packed, including delimiters.
Delimiter + 1: One additional character must be received before the data in the serial port’s
buffer is packed.
Delimiter + 2: Two additional characters must be received before the data in the serial port’s
buffer is packed.
Strip Delimiter: Data accumulated in the serial port’s buffer will be packed, but the delimiter
character(s) will be stripped from the data.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Force transmit
Default
0 ms
Options
0 to 65535
Description
This field controls data packing by the amount of time that elapses between bits of data.
When using this field, make sure that Inactivity time is disabled or set to a larger value.
Otherwise the connection may be closed before the data in the buffer can be transmitted.
0: If serial data is not received, the NPort will wait indefinitely for additional data.
1 to 65535: If serial data is not received for the specified amount of time, the data that is
currently in the buffer will be packed for network transmission. The optimal force transmit
time depends on your application, but it must be at least larger than one character interval
within the specified baudrate. For example, assume that the serial port is set to 1200 bps, 8
data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send a
character is 10 bits, and the time required to transfer one character is 8.3 ms, so the force
transmit time to be larger than 8.3 ms.
Settings for TCP Server Mode
When Operation Mode is set to TCP Server on a serial port’s Operation Modes page, you will be able to
configure additional settings such as TCP alive check time, Inactivity time, Max connection, Ignore
jammed IP, Allow driver control, TCP port, Cmd port, Connection goes down, Packet length,
Delimiter 1, Delimiter 2, Delimiter process, and Force transmit.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
TCP alive check time
Default
7 min
Options
0 to 99 min
Description
This field specifies how long the NPort will wait for a response to “keep alive” packets before
closing the TCP connection. The NPort checks connection status by sending periodic “keep
alive” packets.
0: The TCP connection will remain open even if there is no response to the “keep alive”
packets.
1 to 99: If the remote host does not respond to the packet within the specified time, the
NPort will force the existing TCP connection to close.
Inactivity time
Default
0 ms
Options
0 to 65535 ms
Description
This field specifies the time limit for keeping the connection open if no data flows to or from
the serial device.
0: The connection will remain open even if data is never received. For many applications, the
serial device may be idle for long periods of time, so 0 is an appropriate setting.
1 to 65535: If there is no activity for the specified time, the connection will be closed. When
adjusting this field, make sure that it is greater than the Force transmit time. Otherwise, the
TCP connection may be closed before data in the buffer can be transmitted.
Max connection
Default
Options
1 to 8
Description
This field specifies the maximum number of connections that will be accepted by the serial
port.
1: Only one specific host can access this serial port, and the RealCOM driver on that host will
have full control over the port.
2 to 8: This serial port will allow the specified number of connections to be opened
simultaneously. With simultaneous connections, the RealCOM driver will only provide a pure
data tunnel with no control ability. The serial communication will be determined by the NPort
rather than by your application program. Application software that is based on the RealCOM
driver will receive a driver response of “success” when using any of the Win32 API functions.
The NPort will send data only to the RealCOM driver on the host. Data received from hosts will
be sent to the attached serial device on a first-in-first-out basis.
ATTENTION
When Max connection is 2 or greater, the serial port’s communication settings (i.e., baudrate, parity, data bits,
etc.) will be determined by the NPort. Any host that opens the COM port connection must use identical serial
communication settings.
7-11
NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Ignore jammed IP
Default
Disable
Options
Disable, Enable
Description
This field specifies how an unresponsive IP address is handled when there are simultaneous
connections to the serial port.
Disable: All transmission will be suspended if one IP address becomes unresponsive.
Transmission will only resume when all hosts have responded.
Enable: Data transmission to the other hosts will not be suspended if one IP address becomes
unresponsive.
Allow driver control
Default
Disable
Options
Disable, Enable
Description
This field specifies how the port will proceed if driver control commands are received from
multiple hosts that are connected to the port.
Disable: Driver control commands will be ignored.
Enable: Control commands will be accepted, with the most recent command received taking
precedence.
TCP port
Default
4001
Options
0 to 9999
Description
This field specifies the TCP port number that the serial port will use to listen to connections,
and that other devices must use to contact the serial port.
Cmd port
Default
996
Options
Description
This field specifies the TCP port number for listening to SSDK commands from the host.
The usage of other functions can be found in the subsection of RealCOM mode in page 7-4.
Connection goes down
Default
always high
Options
always low, always high
Description
This field specifies what happens to the RTS and DTR signals when the Ethernet connection
goes down. For some applications, serial devices need to know the Ethernet link status
through RTS or DTR signals sent through the serial port.
Always low: The selected signal will change to low when the Ethernet connection goes down.
Always high The selected signal will remain high when the Ethernet connection goes down.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Packet length
Default
Options
0 to 1024
Description
This field specifies the maximum amount of data that is allowed to accumulate in the serial
port buffer before sending.
0: Packet length is disregarded and data in the buffer will be sent as specified by the delimiter
settings or when the buffer is full.
1 to 1024: Data in the buffer will be sent as soon it reaches the specified length.
Delimiter 1 and 2
Default
Disabled
Options
Disabled, Enabled, 00 to FF
Description
These fields are used to define special delimiter character(s) for data packing. Enable
Delimiter 1 to control data packing with a single character; enable both Delimiter 1 and 2 to
control data packing with two characters received in sequence.
When these fields are enabled, serial data will accumulate in the serial port’s buffer until the
buffer is full or until the specified delimiter character(s) are received. For example, the
carriage return character could be used as a delimiter in order to transmit each sentence or
paragraph in a separate packet. Data will be packed according to Delimiter process.
Delimiters must be incorporated into the data stream at the software or device level.
ATTENTION
When Delimiter 1 is enabled, Packet length must be set to 0.
Delimiter process
Default
Do Nothing
Options
Do Nothing, Delimiter + 1, Delimiter + 2, Strip Delimiter
Description
This field specifies how data is packed when delimiter characters are received. This field has
no effect if Delimiter 1 is not enabled.
Do nothing: Data accumulated in the serial port’s buffer will be packed, including delimiters.
Delimiter + 1: One additional character must be received before the data in the serial port’s
buffer is packed.
Delimiter + 2: Two additional characters must be received before the data in the serial port’s
buffer is packed.
Strip Delimiter: Data accumulated in the serial port’s buffer will be packed, but the delimiter
character(s) will be stripped from the data.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
Force transmit
Default
0 ms
Options
0 to 65535
Description
This field controls data packing by the amount of time that elapses between bits of data.
When using this field, make sure that Inactivity time is disabled or set to a larger value.
Otherwise the connection may be closed before the data in the buffer can be transmitted.
0: If serial data is not received, the NPort will wait indefinitely for additional data.
1 to 65535: If serial data is not received for the specified amount of time, the data that is
currently in the buffer will be packed for network transmission. The optimal force transmit
time depends on your application, but it must be at least larger than one character interval
within the specified baudrate. For example, assume that the serial port is set to 1200 bps, 8
data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send a
character is 10 bits, and the time required to transfer one character is 8.3 ms, so the force
transmit time to be larger than 8.3 ms.
Settings for TCP Client Mode
When Operation Mode is set to TCP Client on a serial port’s Operation Modes page, you will be able to
configure additional settings such as TCP alive check time, Inactivity time, Ignore jammed IP ,
Destination address 1-4, Designated local port 1-4, Connection control, and Packet length,
Delimiter 1, Delimiter 2, Delimiter process, and Force transmit.
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NPort W2150A/W2250A Series
Web Console: Serial Port Settings
TCP Alive Check Time
Default
7 min
Options
0 to 99 min
Description
This field specifies how long the NPort will wait for a response to “keep alive” packets before
closing the TCP connection. The NPort checks connection status by sending periodic “keep
alive” packets.
0: The TCP connection will remain open even if there is no response to the “keep alive”
packets.
1 to 99: If the remote host does not respond to the packet within the specified time, the
NPort will force the existing TCP connection to close.
Inactivity time
Default
0 ms
Options
0 to 65535 ms
Description
This field specifies the time limit for keeping the connection open if no data flows to or from
the serial device.
0: The connection will remain open even if data is never received. For many applications, the
serial device may be idle for long periods of time, so 0 is an appropriate setting.
1 to 65535: If there is no activity for the specified time, the connection will be closed. When
adjusting this field, make sure that it is greater than the Force transmit time. Otherwise, the
TCP connection may be closed before data in the buffer can be transmitted.
Ignore jammed IP
Default
Disable
Options
Disable, Enable
Description
This field specifies how an unresponsive IP address is handled when there are simultaneous
connections to the serial port.
Disable: All transmission will be suspended if one IP address becomes unresponsive.
Transmission will only resume when all hosts have responded.
Enable: Data transmission to the other hosts will not be suspended if one IP address becomes
unresponsive.
Destination address 1 to 4
Default
Options
IP address and port (e.g., “192.168.1.1” and “4001”)
Description
This field specifies the remote host(s) that will access the attached device. At least one
destination must be provided. This field supports the use of domain names and names
defined in the host table.
ATTENTION
In TCP Client mode, up to 4 connections can be established between the serial port and TCP hosts. The
connection speed or throughput may be low if any one of the four connections is slow, since the one slow
connection will slow down the other 3 connections.
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Web Console: Serial Port Settings
Designated local port 1 to 4
Default
Options
1 to 65535
Description
This field specifies the TCP port number that will be used for data transmission with the serial
port.
Connection control
Default
Startup/None
Options
Startup/None, Any Character/None, Any Character/Inactivity Time, DSR On/DSR Off, DSR
On/None, DCD On/DCD Off, DCD On/None
Description
This field specifies how connections to the device are established and closed.
Startup/None: The connection will be opened as the NPort starts up. The connection will only
be closed manually.
Any Character/None: The connection will be opened as soon as a character is received from
the attached device. The connection will only be closed manually.
Any Character/Inactivity Time: The connection will be opened as soon as a character is
received from the attached device. The connection will be closed if no data is received for the
time specified in Inactivity time.
DSR On/DSR Off: The TCP connection is opened when the DSR signal is on, and closed when
the DSR signal is off.
DSR On/None: The TCP connection is opened when the DSR signal is on. The connection will
only be closed manually.
DCD On/DCD Off: The TCP connection is opened when the DCD signal is on, and closed when
the DCD signal is off.
DCD On/None: The TCP connection is opened when the DCD signal is on. The connection will
only be closed manually.
Packet length
Default
Options
0 to 1024
Description
This field specifies the maximum amount of data that is allowed to accumulate in the serial
port buffer before sending.
0: Packet length is disregarded and data in the buffer will be sent as specified by the delimiter
settings or when the buffer is full.
1 to 1024: Data in the buffer will be sent as soon it reaches the specified length.
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Web Console: Serial Port Settings
Delimiter 1 and 2
Default
Disabled
Options
Disabled, Enabled, 00 to FF
Description
These fields are used to define special delimiter character(s) for data packing. Enable
Delimiter 1 to control data packing with a single character; enable both Delimiter 1 and 2 to
control data packing with two characters received in sequence.
When these fields are enabled, serial data will accumulate in the serial port’s buffer until the
buffer is full or until the specified delimiter character(s) are received. For example, the
carriage return character could be used as a delimiter in order to transmit each sentence or
paragraph in a separate packet. Data will be packed according to Delimiter process.
Delimiters must be incorporated into the data stream at the software or device level.
ATTENTION
When Delimiter 1 is enabled, Packet length must be set to 0.
Delimiter process
Default
Do Nothing
Options
Do Nothing, Delimiter + 1, Delimiter + 2, Strip Delimiter
Description
This field specifies how data is packed when delimiter characters are received. This field has
no effect if Delimiter 1 is not enabled.
Do nothing: Data accumulated in the serial port’s buffer will be packed, including delimiters.
Delimiter + 1: One additional character must be received before the data in the serial port’s
buffer is packed.
Delimiter + 2: Two additional characters must be received before the data in the serial port’s
buffer is packed.
Strip Delimiter: Data accumulated in the serial port’s buffer will be packed, but the delimiter
character(s) will be stripped from the data.
Force transmit
Default
0 ms
Options
0 to 65535
Description
This field controls data packing by the amount of time that elapses between bits of data.
When using this field, make sure that Inactivity time is disabled or set to a larger value.
Otherwise the connection may be closed before the data in the buffer can be transmitted.
0: If serial data is not received, the NPort will wait indefinitely for additional data.
1 to 65535: If serial data is not received for the specified amount of time, the data that is
currently in the buffer will be packed for network transmission. The optimal force transmit
time depends on your application, but it must be at least larger than one character interval
within the specified baudrate. For example, assume that the serial port is set to 1200 bps, 8
data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send a
character is 10 bits, and the time required to transfer one character is 8.3 ms, so the force
transmit time to be larger than 8.3 ms.
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Web Console: Serial Port Settings
Settings for UDP Mode
When Operation Mode is set to UDP on a serial port’s Operation Modes page, you will be able to configure
additional settings such as Destination address 1 through 4, Local listen port, Packet length, Delimiter
1, Delimiter 2, Delimiter process, and Force transmit.
Destination address 1 to 4
Default
Options
IP address range and port (e.g., “192.168.1.1” to “192.168.1.64” and “4001”)
Description
In UDP mode, you may specify up to 4 ranges of IP addresses for the serial port to connect
to. At least one destination range must be provided.
The maximum selectable IP address range is 64 addresses. However, you can enter multicast
addresses in the Begin field, in the form xxx.xxx.xxx.255. For example, enter
“192.127.168.255” to allow the NPort to broadcast UDP packets to all hosts with IP
addresses between 192.127.168.1 and 192.127.168.254.
Local listen port
Default
4001
Options
Description
This field specifies the UDP port that the NPort listens to and that other devices must use to
contact the attached serial device.
Packet length
Default
Options
0 to 1024
Description
This field specifies the maximum amount of data that is allowed to accumulate in the serial
port buffer before sending.
0: Packet length is disregarded and data in the buffer will be sent as specified by the delimiter
settings or when the buffer is full.
1 to 1024: Data in the buffer will be sent as soon it reaches the specified length.
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Web Console: Serial Port Settings
Delimiter 1 and 2
Default
Disabled
Options
Disabled, Enabled, 00 to FF
Description
These fields are used to define special delimiter character(s) for data packing. Enable
Delimiter 1 to control data packing with a single character; enable both Delimiter 1 and 2 to
control data packing with two characters received in sequence.
When these fields are enabled, serial data will accumulate in the serial port’s buffer until the
buffer is full or until the specified delimiter character(s) are received. For example, the
carriage return character could be used as a delimiter in order to transmit each sentence or
paragraph in a separate packet. Data will be packed according to Delimiter process.
Delimiters must be incorporated into the data stream at the software or device level.
ATTENTION
When Delimiter 1 is enabled, Packet length must be set to 0.
Delimiter process
Default
Do Nothing
Options
Do Nothing, Delimiter + 1, Delimiter + 2, Strip Delimiter
Description
This field specifies how data is packed when delimiter characters are received. This field has
no effect if Delimiter 1 is not enabled.
Do nothing: Data accumulated in the serial port’s buffer will be packed, including delimiters.
Delimiter + 1: One additional character must be received before the data in the serial port’s
buffer is packed.
Delimiter + 2: Two additional characters must be received before the data in the serial port’s
buffer is packed.
Strip Delimiter: Data accumulated in the serial port’s buffer will be packed, but the delimiter
character(s) will be stripped from the data.
Force transmit
Default
0 ms
Options
0 to 65535
Description
This field controls data packing by the amount of time that elapses between bits of data.
When using this field, make sure that Inactivity time is disabled or set to a larger value.
Otherwise the connection may be closed before the data in the buffer can be transmitted.
0: If serial data is not received, the NPort will wait indefinitely for additional data.
1 to 65535: If serial data is not received for the specified amount of time, the data that is
currently in the buffer will be packed for network transmission. The optimal force transmit
time depends on your application, but it must be at least larger than one character interval
within the specified baudrate. For example, assume that the serial port is set to 1200 bps, 8
data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send a
character is 10 bits, and the time required to transfer one character is 8.3 ms, so the force
transmit time to be larger than 8.3 ms.
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Web Console: Serial Port Settings
Settings for Pair Connection Master Mode and Pair Connection Slave
Mode
When Operation Mode is set to Pair Connection Master or Pair Connection Slave on a serial port’s
Operation Modes page, you will be able to configure additional settings such as TCP alive check time,
Destination address and TCP port. A Pair Connection application involves one serial port communicating
over an IP network to another serial port as if the two serial ports were connected by a serial cable. Pair
Connection modes can be used to extend RS-232 transmission to unlimited distances.
An NPort device server is needed at both ends of the connection. The serial port at one end must be set to Pair
Connection Master mode, and the serial port at the other end must be set to Pair Connection Slave mode. It
does not matter which serial port is master and which serial port is slave.
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Web Console: Serial Port Settings
TCP alive check time
Default
7 min
Options
0 to 99 min
Description
This field specifies how long the NPort will wait for a response to “keep alive” packets before
closing the TCP connection. The NPort checks connection status by sending periodic “keep
alive” packets.
0: The TCP connection will remain open even if there is no response to the “keep alive”
packets.
1 to 99: If the remote host does not respond to the packet within the specified time, the
NPort will force the existing TCP connection to close.
Destination address
Default
Options
IP address and port (e.g., “192.168.1.1” and “4001”)
Description
This field specifies the IP address for the NPort at the opposite end of the Pair Connection,
and the TCP port number for communication with the serial port. The port number must
match with that serial port’s TCP port setting.
TCP port
Default
4001
Options
Description
This field specifies the TCP port to use for communication with the attached serial device. The
serial port at the opposite end of the Pair Connection must use this port number to establish
the connection.
Settings for Ethernet Modem Mode
When Application is set to Ethernet Modem Mode, the NPort will accept AT commands such as “ATD
192.127.168.1:4001” from the serial port. A TCP connection will then be requested from the specified remote
Ethernet Modem or PC. When the remote unit accepts this TCP connection, the NPort will return the “CONNECT
{baudrate}” signal to the serial port and will then enter data mode. Please refer to Appendix C for details on
Ethernet modem commands.
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Web Console: Serial Port Settings
TCP alive check time
Default
7 min
Options
0 to 99 min
Description
This field specifies how long the NPort will wait for a response to “keep alive” packets before
closing the TCP connection. The NPort checks connection status by sending periodic “keep
alive” packets.
0: The TCP connection will remain open even if there is no response to the “keep alive”
packets.
1 to 99: If the remote host does not respond to the packet within the specified time, the
NPort will force the existing TCP connection to close.
TCP port
Default
4001
Options
Description
This field specifies the TCP port to use for communication with the attached serial device.
Communication Parameters
The Communication Parameters page for each serial port is where serial communication settings are
specified, such as Baud rate, Data bits, and Stop bits.
Alias
Default
Options
free text (e.g., “Secondary console connection”)
Description
This is an optional free text field to help you differentiate one serial port from another. It does
not affect operation of the NPort device server.
ATTENTION
Serial communication settings should match the attached serial device. Check the communication settings in
the user’s manual for your serial device.
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Web Console: Serial Port Settings
Baud rate
Default
115200
Options
50, 75, 110, 134, 150, 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600,
115200, 230400, 460800, 921600, Other
Description
This field specifies the baudrate for the serial port. Nonstandard baudrates are supported
through the “Other” setting. When set to “Other”, you may manually enter a baudrate of your
choice, up to 921600.
50 to 921600: The serial port will operate at the specified baudrate
Other: The serial port will operate at a baudrate that is manually entered by the user.
Parity
Default
None
Options
None, Odd, Even, Space, Mark
Description
This field specifies the type of parity bit used for each character frame.
Data bit
Default
Options
5, 6, 7, 8
Description
This field specifies the number of data bits used to encode each character of data.
Stop bit
Default
Options
1, 1.5, 2
Description
This field specifies the number of stop bits used for each character frame.
Flow control
Default
RTS/CTS
Options
None, RTS/CTS, XON/XOFF, DTR/DSR
Description
This field specifies the type of flow control used by the serial port.
FIFO
Default
Enable
Options
Enable, Disable
Description
This field specifies whether the serial port will use the built-in FIFO. A 128-byte FIFO is
provided to each serial port for both Tx and Rx directions. To prevent data loss during serial
communication, this should be set to Disabled if the attached serial device does not have a
FIFO.
Interface
Default
RS-232
Options
RS-232, RS-422, RS-485 2-wire, RS-485 4-wire
Description
This field specifies the type of interface the serial port will use.
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Web Console: Serial Port Settings
Data Buffering/Log
On the serial port’s Data Buffering/Log page, you can enable or disable Port buffering and Serial data
logging.
Port buffering
Default
Disable
Options
Enable, Disable
Description
This field specifies whether the serial port will use port buffering when the network
connection (Ethernet or WLAN) is down. Port buffering can be used in RealCOM mode, TCP
Server mode, TCP Client mode, and Pair Connection mode. For other modes, the port
buffering settings will have no effect.
Serial data logging(64K)
Default
Disable
Options
Enable, Disable
Description
This field specifies whether data logs for the serial port will be stored on system RAM. Each
serial port is allotted 64 KB for data logging. The data log is not saved when the NPort is
powered off.
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8
8.
Web Console: System Management
The following topics are covered in this chapter:
 Overview
 System Management
 Misc. Network Settings
 Auto Warning Settings
 Maintenance
 Maintenance
 Certificate
NPort W2150A/W2250A Series
Web Console: System Management
Overview
This chapter explains how to configure all settings located under the System Management folder in the NPort
web console.
System Management
Misc. Network Settings
Accessible IP List
The Accessible IP List page is located under Misc. Network Settings in the System Management folder.
This page is used this restrict access to the NPort by IP address. Only IP addresses on the list will be allowed
access to the NPort. You may add a specific address or range of addresses by using a combination of IP address
and netmask, as follows:
To allow access to a specific IP address
Enter the IP address in the corresponding field; enter 255.255.255.255 for the netmask.
To allow access to hosts on a specific subnet
For both the IP address and netmask, use 0 for the last digit (e.g., “192.168.1.0” and “255.255.255.0”).
To allow access to all IP addresses
Make sure that Enable the accessible IP list is not checked.
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Web Console: System Management
Refer to the following table for more configuration examples.
Desired IP Range
IP Address Field
Netmask Field
Any host
Disable
Disable
192.168.1.120
192.168.1.120
255.255.255.255
192.168.1.1 to 192.168.1.254
192.168.1.0
255.255.255.0
192.168.0.1 to 192.168.255.254
192.168.0.0
255.255.0.0
192.168.1.1 to 192.168.1.126
192.168.1.0
255.255.255.128
192.168.1.129 to 192.168.1.254
192.168.1.128
255.255.255.128
SNMP Agent Settings
The SNMP Agent page is located under Misc. Network Settings in the System Management folder. This
page is used to configure the SNMP Agent on the NPort.
SNMP
Default
Enable
Options
Enable, Disable
Description
This field enables or disables the SNMP Agent. If enabled, you will need to configure other
SNMP Agent settings. You will need to enter a community name under Read community
string.
Contact Name
Default
Options
free text (e.g., “J Smith”)
Description
This is an optional free text field that can be used to specify the SNMP emergency contact
name, telephone, or pager number.
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Web Console: System Management
Location
Default
Options
free text (e.g., “Building XYZ”)
Description
This is an optional free text field that can be used to specify the location for SNMP agents such
as the NPort.
Read Community String
Default
public
Options
free text (e.g., “public community”)
Description
This field specifies the read community string used for the SNMP Agent. This is a text
password mechanism that is used to weakly authenticate queries to agents of managed
network devices.
Write Community String
Default
private
Options
free text (e.g., “private community”)
Description
This field specifies the write community string used for the SNMP Agent. This is a text
password mechanism that is used to weakly authenticate changes to agents of managed
network devices.
SNMP Agent Version
Default
V1, V2c, V3
Options
V1, V2c, V3 / V1, V2c / V3 only
Description
This field specifies which version(s) of SNMP to support.
Read Only User Name
Default
rouser
Options
free text (e.g., “guest”)
Description
This field specifies a user name to use for read only access.
Read Only Authentication Mode
Default
Disable
Options
Disable, MD5, SHA
Description
This field specifies the type of authentication to use for read-only access.
Read Only Password
Default
Options
free text (e.g., “password123”)
Description
This field specifies the password that users must enter for read-only access, if read only
authentication is enabled.
Read Only Privacy mode
Default
Disable
Options
Disable, DES_CBC
Description
This field specifies whether DES_CBC data encryption will be used during read-only access.
Read Only Privacy
Default
Options
free text (e.g., “read only key”)
Description
This field specifies the encryption key for read-only access, if read-only privacy is enabled.
Read/Write User Name
Default
rwuser
Options
free text (e.g., “admin”)
Description
This field specifies a user name to use for read/write access.
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Web Console: System Management
Read/Write Authentication Mode
Default
Disable
Options
Disable, MD5, SHA
Description
This field specifies the type of authentication to use for read/write access.
Read/Write Password
Default
Options
free text (e.g., “password123”)
Description
This field specifies the password that users must enter for read/write access, if read only
authentication is enabled.
Read/Write Privacy mode
Default
Disable
Options
Disable, DES_CBC
Description
This field specifies whether DES_CBC data encryption will be used during read/write access.
Read/Write Privacy
Default
Options
free text (e.g., “read write key”)
Description
This field specifies the encryption key for read/write access, if read-/write privacy is enabled.
System Log Settings
The System Log page is located under Misc. Network Settings in the System Management folder. This is
where you select the type of events that will be logged by the NPort.
Group
Event
System
System Cold Start, System Warm Start
Network
DHCP/BOOTP, Get IP/Renew, Mail Fail, NTP Connect Fail, IP Conflict, Network Link Down
Config
Login Fail, IP Changed, Password Changed, Firmware Upgrade, SSL Certificate Import,
Op Mode
Connect, Disconnect, Restart
Config Import, Config Export, Wireless Certificate Import, Serial Data Log Export
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Web Console: System Management
Auto Warning Settings
Event Settings
The Event Settings page is located under Auto Warning Settings in the System Management folder. This
is where you specify how the NPort will notify you of system and configuration events. Depending on the event,
different options for notification are available, as shown above. Mail refers to sending an e-mail to a specified
address. Trap refers to sending an SNMP trap.
Event
Description
Cold start
The NPort was powered on, or was restarted after a firmware upgrade.
Warm start
The NPort restarted without powering off.
Console login auth fail
An attempt has been made to open the web, Telnet, or serial console, but the
password was incorrect.
IP changed
The IP address has been changed.
Password changed
The password to the console has been changed.
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NPort W2150A/W2250A Series
Web Console: System Management
Serial Event Settings
The Serial Event Settings page is located under Auto Warning Settings in the System Management
folder. This is where you specify how the NPort will notify you of DCD and DSR events for each serial port. Mail
refers to sending an e-mail to a specified address. Trap refers to sending an SNMP trap.
A change in the DCD (Data Carrier Detect) signal indicates that the modem connection status has changed. If
the DCD signal changes to low, it indicates that the connection line is down. A change in the DSR (Data Set
Ready) signal indicates that the data communication equipment is powered off. If the DSR signal changes to
low, it indicates that the data communication equipment is powered down.
ATTENTION
SNMP indicates a change in DCD or DSR signals but does not differentiate between the two. A change in either
signal from “–” to “+” is indicated by “link up” and a change in either signal from “+” to “–” is indicated by “link
down.”
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NPort W2150A/W2250A Series
Web Console: System Management
E-mail Alert
The E-mail Alert page is located under Auto Warning Settings in the System Management folder. This is
where you specify how and where e-mail is sent when e-mail is used for automatic notification of system and
serial port events.
ATTENTION
Consult your network administrator or ISP for the mail server settings to use for your network. If these settings
are not configured correctly, e-mail notification may not work properly.
Mail Server (SMTP)
Default
Options
free text (e.g., “192.168.3.3”)
Description
This field specifies the IP address of the mail server that will be used when sending automatic
warning e-mails. If the mail server requires authentication, select “My server requires
authentication” and enter the username and password.
From e-mail address
Default
Options
free text (e.g., “jsmith@xyz.com”)
Description
This field specifies the e-mail address that will be listed in the e-mail’s “From” field.
To e-mail address 1 to 4
Default
Options
free text (e.g., “admin@abc.com”)
Description
These fields specify the destination e-mail address(es) for the automatic e-mail warnings.
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Web Console: System Management
SNMP Trap
The SNMP Trap page is located under Auto Warning Settings in the System Management folder. This is
where you specify the SNMP trap settings to use for automatic notification of system and serial port events.
SNMP Trap Server IP
Default
Options
IP address (e.g., “192.168.5.5”)
Description
This field specifies the IP address of the SNMP trap server that will receive SNMP traps.
Trap Version
Default
v1
Options
v1, v2c
Description
This field specifies the SNMP trap version to use.
Trap Community
Default
Options
free text (e.g., “public access”)
Description
This field specifies the SNMP trap community.
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NPort W2150A/W2250A Series
Web Console: System Management
Maintenance
Console Settings
The Console Settings page is located under Maintenance in the System Management folder. This is where
you enable or disable access to the various NPort configuration consoles, as well as the behavior of the reset
button. You may modify HTTP console, HTTPS console, Telnet console, SSH console, and Reset button.
HTTP Console
Default
Enable
Options
Enable, Disable
Description
This field enables or disables access to the HTTP (web) console.
HTTPS Console
Default
Enable
Options
Enable, Disable
Description
This field enables or disables access to the HTTPS (web) console.
Telnet Console
Default
Enable
Options
Enable, Disable
Description
This field enables or disables access to the Telnet console.
SSH Console
Default
Enable
Options
Enable, Disable
Description
This field enables or disables access to the SSH console.
Reset Button
Default
Always Enable
Options
Always Enable, Disable after 60 sec
Description
This field specifies the behavior of the hardware reset button.
Always Enable: The reset button will be operate as usual.
Disable after 60 sec: The reset button will only be effective for the first 60 seconds that the
NPort is powered on.
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NPort W2150A/W2250A Series
Web Console: System Management
Maintenance
Ping
The Ping page is located under Maintenance in the System Management folder. It provides a convenient
way to test an Ethernet connection or verify an IP address. Enter the IP address or domain name in the
Destination field and click [Activate]. The results will be displayed immediately.
Firmware Upgrade
The Firmware Upgrade page is located under Maintenance in the System Management folder. This is
where you can update the NPort firmware. After obtaining the latest firmware from www.moxa.com, select or
browse for the firmware file in the Select firmware file field. Before clicking [Submit], it is a good idea to
save the NPort configuration using the Configuration Export page, since the firmware upgrade process may
cause all settings to revert to factory defaults.
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Web Console: System Management
Configuration Import
The Configuration Import page is located under Maintenance in the System Management folder. This is
where you can load a previously saved or exported configuration. Select or browse for the configuration file in
the Select configuration file field. If you also wish to import the IP configuration (i.e., IP address, netmask,
and gateway), make sure that Import all configurations including IP configurations is checked.
Configuration Export
The Configuration Export page is located under Maintenance in the System Management folder. This is
where you can save the NPort’s current configuration to a file on the local host. Click [Download] to begin the
process. A window should appear asking you to open or save the configuration text file.
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Web Console: System Management
Load Factory Default
The Load Factory Default page is located under Maintenance in the System Management folder. Click
[Submit] to reset all settings to the factory defaults. You can preserve the NPort’s existing IP settings (i.e., IP
address, netmask, gateway, WLAN profile, and all certificates) by making sure Keep IP settings is checked
before clicking [Submit].
Change Password
The Change Password page is located under Maintenance in the System Management folder. To change
the password, choose the account name first, and then enter the old password in the Old password field.
Leave this blank if the NPort is not currently password-protected. Enter the new password twice, once in the
New password field and once in the Confirm password. Leave these fields blank to remove password
protection.
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Web Console: System Management
ATTENTION
If you forget the password, the ONLY way to configure the NPort is by loading the factory defaults with the reset
button. All settings will be lost.
Before setting the password, you may want to first export the configuration to a file. Your configuration can
then be easily imported back into the NPort if necessary.
Certificate
Ethernet SSL Certificate Import
The Ethernet SSL Certificate Import page is located under Certificate in the System Management folder.
This is where you can load the Ethernet SSL certificate. Select or browse for the certificate file in the Select SSL
certificate/key file field.
WLAN SSL Certificate Import
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NPort W2150A/W2250A Series
Web Console: System Management
The WLAN SSL Certificate Import page is located under Certificate in the System Management folder. By
default, the WLAN SSL certificate is automatically generated by the NPort based on the IP address of the
wireless interface. You can also import a certificate. Select or browse for the certificate file in the Select SSL
certificate/key file field.
WPA Server Certificate Import
The WPA Server Certificate Import page is located under Certificate in the System Management folder.
This is where you can load the WPA server certificate. Select or browse for the certificate file in the Select WPA
server certificate file field.
You must install the trusted server certificate from the RADIUS server in order to enable Verify server
certificate in the WLAN Security settings. This certificate will then be used by the NPort to authenticate the
RADIUS server.
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Web Console: System Management
WPA User Certificate Import
The WPA User Certificate Import page is located under Certificate in the System Management folder.
This is where you can load the WPA user certificate. Select or browse for the certificate file in the Select WPA
user certificate file field.
The user certificate of the NPort must be installed in the RADIUS server when the NPort uses WPA (WPA2)/TLS.
The trusted server certificate of the RADIUS server must also be installed in the NPort.
WPA User Key Import
The WPA User Key Import page is located under Certificate in the System Management folder. This is
where you can load the WPA user certificate. Select or browse for the user private key file in the Select WPA
user privacy key file field and enter the Password for the private key.
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NPort W2150A/W2250A Series
Web Console: System Management
The user private key of the NPort must be installed in the RADIUS server when the NPort uses
WPA(WPA2)//TLS. The trusted server certificate of RADIUS server must also be installed on the NPort.
Certificate/Key Delete
The Certificate/Key Delete page is located under Certificate in the System Management folder. This page
is where you can delete certificates or WPA keys that have been installed on the model. When you click
[Submit], any certificate or key that has been set to “Delete” will be deleted from the NPort.
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9
9.
Web Console: System Monitoring
The following topics are covered in this chapter:
 Overview
 System Monitoring
 Serial Status
 System Status
NPort W2150A/W2250A Series
Web Console: System Monitoring
Overview
This chapter explains how to use the System Monitoring functions on the NPort web console. These functions
allow you to monitor many different aspects of operation.
System Monitoring
Serial Status
Serial to Network Connections
The Serial to Network Connections page is located under Serial Status in the System Monitoring folder.
On this page, you can monitor the current operation mode and host connection status for each serial port.
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NPort W2150A/W2250A Series
Web Console: System Monitoring
Serial Port Status
The Serial Port Status page is located under Serial Status in the System Monitoring folder. On this page,
you can monitor the signal and data transmission status for each serial port.
TxCnt: number of Tx packets (to device) for the current connection
RxCnt: number of Rx packets (from device) for the current connection
TxTotalCnt: number of Tx packets since the NPort was powered on
RxTotalCnt: number of Rx packets since the NPort was powered on
Serial Port Error Count
The Serial Port Error Count page is located under Serial Status in the System Monitoring folder. On this
page, you can view the current number of frame, parity, overrun and break errors for each serial port.
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NPort W2150A/W2250A Series
Web Console: System Monitoring
Serial Port Settings
The Serial Port Settings page is located under Serial Status in the System Monitoring folder. On this page,
you can view the current communication settings for each serial port.
System Status
Network Connections
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NPort W2150A/W2250A Series
Web Console: System Monitoring
The Network Connections page is located under System Status in the System Monitoring folder. On this
page, you can view the current status of any network connection to the NPort.
Serial Data Log
Data logs for each serial port can be viewed in ASCII or HEX format. After selecting the serial port and format,
you may click Select all to select the entire log if you wish to copy and paste the contents into a text file. The
Clear log and Refresh buttons allow you to clear or refresh the log contents.
The Serial Data Log page is located under System Status in the System Monitoring folder. This is where
you can download the current data log for a serial port. Select the desired serial port in the Select port field.
Select the desired data format in the Download format field. Click [Clear log] to clear the log contents.
The data log includes all data sent or received by the specified serial port since the NPort was powered on. The
maximum size of the log is 64 KB.
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