Moxa W2X50A User Manual

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

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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 register ed marks in this m anual be long to their res pec tive manufacturers.

Disclaimer

Information in this document is subject to cha nge witho ut no tic e and doe s no t repres e nt a commitme nt o n 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 rig ht 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 m ay res ult fr om its use.

This product might include unintentional tec hnic a l o r typographical errors. Changes are periodically made to the
information herein to correct such errors, and these changes are incorporated into new editions of the public ation.

Technical Support Contact Information

www.moxa.com/support

-free: 1-888-669-2872
[phone]

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-free: 800-820-5036
[phone]

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-Pacific

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 Star ted.................................................................................................................................. 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 Configur at io n ..................................................................................................................... 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 Setti ngs ........................................................................................................ 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 Soft w are ......................................................................................... 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 Fix ed TTY Drivers ................................................................................................................... 11-20

Installing the UNIX Driver......................................................................................................... 11-21

Configuring the UNIX Driver ..................................................................................................... 11-21

A. SNMP A ge n ts 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 Comman ds .............................................................................................................. 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 Stat ement ........................................................... D-1

E. FCC Warning Statement .................................................................................................................... E-1

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1. Introduction

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 Hard w are

 Connecting to the Network
 Connecting the Power
 Connecting to a Serial Device

NPort W2150A/W2250A Series Introduction

1-2

Overview

In this chapter we intro duce the basic features and specifications of the NPort W2150A/W2250A and NPort
W2150A/W2250A-T, ref erre d to collec tively as the NPort W2150A/W2250A Series.

The NPort W2150A/W2250A Series of wireless device servers are used to connect RS-232/422/485 seria l
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 fro m anywher e over a loca l LAN, WLA N, or the Inter ne t.
Moreover, the WLAN environment offers an excellent s o lution for applications in which the serial devic es are
moved frequently from place to place.

The NPort W2150A/W2250A supports both automatic IP configur ation protocols (DHCP, BOOTP) and manual
configuration using a standard web browse r. Both IP configuration methods ensure quick and effective
installation. In additio n, a uti lity c a lle d “NPort Windows Driver Manager” makes port mapping easy.

The external antenna can be adjusted for maximum signal stre ngth. 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 f or
you to troubleshoot any connection proble ms .

The NPort W2150A/W2250A Series offers different operation modes to ensure compatibi lity 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 ov er an IP network ins tantly. This preserves your
software investment while providing all the advantag e s of networ king 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: 9199000 00 0900)

NOTE: Please notify your sales represe nta tiv e if any of the above items are missing or damaged

Product Features

• Instant connection of any serial device to IEEE 802 .11 a/b/g network

• RS-232/422/485 ports supporting baudra tes up to 921.6 Kbps

• Web-based configuration over Etherne t or WLAN

• Enhanced remote configuration with HT TPS , 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

NPort W2150A/W2250A Series Introduction

1-3

Ethernet Interfac e

Number of Ports:

Speed:

Connector:

Magnetic Isolat ion P ro tec t i o n:

WLAN Interface

Standard Compliance:

Network Modes:

Transmit Power:

802.11a: 14 dBm (typical)

802.11b: 17 dBm (typical)

802.11g: 15 dBm (typical)

Receive Sensitivity:

Radio Frequency Type:

Transmission Rate:

802.11a: 54 Mbps

802.11b: 11 Mbps

802.11g: 54 Mbps (max.) with auto fallback (54, 48, 36, 24,

Transmission Distance:

Wireless Security:

• WEP: 64

• WPA, WPA2, 802.11i: Enterprise mode and

• Encryption: 128

EAP

GTC,

EAP-TTLS/EAP-MD5, LEAP

Antenna Connector:

Serial Interface

Number of Ports:

NPort W2150A: 1
NPort W2250A: 2

Serial Standards:

Off

NP
N

Serial Line Surge Protection:

Serial Communication Para me ter s

Data Bits:

Stop Bits:

Parity:

Flow Control:

Baudrate: 50 bps to 921.6 Kbps

Serial Data Log:

Serial Signals

RS

RS

RS

RS

Software

Network Protocols:

HTTPS

Configuration Options:

Product Specifications

1

10/100 Mbps, auto MDI/M DIX

RJ45

1.5 KV built-in

802.11a/b/g

Infrastructure, Ad-Hoc

-80 dBm
DSSS/OFDM

18, 12, 11, 9, 6, 5.5, 2, 1 Mbps)

Up to 100 meters (in open areas)

-bit/128-bit data encryption
Pre-Share Key (PSK) mode

-bit TKIP/AES-CCMP EAP-TLS, PEAP/GTC, PEAP/MD5, PEAP/MSCHAPV2, EAP-TTLS/PAP,

-TTLS/CHAP, EAP-TTLS/MSCHAP, EAP-TTLS/MSCHAPV2, EAP-TTLS/EAP-MSCHAPV2, EAP-TTLS/EAP-

Reverse SMA

RS-232/422/485 (DB9 male connector)

-line Port Buffering:

ort W2150A: 20 MB

Port W2250A: 10 MB

1KV (level 2)

5, 6, 7, 8
1, 1.5, 2

None, Even, Odd, Space, Mark

RTS/CTS, XON/XOFF

64 KB

-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND

-422: TxD+, TxD-, RxD+, RxD-, GND

-485-4w: TxD+, TxD-, RxD+, RxD-, GND

-485-2w: Data+, Data-, GND

ICMP, IP, TCP, UDP, DHCP, Telnet, DNS, SNMP V1/V2c/V3, HTTP, SMTP, SNTP, SSH,

Web Console, Serial Console, Telnet Console

NPort W2150A/W2250A Series Introduction

1-4

Secure

Windows

Embedded CE 5.0/6.0, XP Embedded

Fixed TTY Drivers:

Solaris 10, FreeBSD, AIX 5.x, HP

Linux Real TTY Drivers:

Utilities:

Management:

Physical Characteristics

Housing:

Weight:

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.

Environmental Limits

Operating Temperatur e:

Standard Models: 0 to 55°C (32 to 131°F)
Wide Temp. Models:

Storage Temperature:

Ambient Relative Humidity:

Power

Input Voltage: 12 to 48 VDC

Power Consumption:

237 mA @ 12 V, 125 mA @ 24 V, 50 mA @ 48 V

Standards and Certifications

Safety:

EMC:

EMI:

EMS:

Radio:

Power Line Surge Protecti on :

Reliability

Alert Tool:

Automatic Reboot Trigger:

Warranty

Warranty Period:

Details:

Configuration Options: HTTPS, SSH

RealCOM Drivers: Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7 x86/x64,

SCO Unix, SCO OpenServer, UnixWare 7, UnixWare 2.1, SVR 4.2, QNX 4.25, QNX 6,

-UX 11i

2.4.x, 2.6.x, 3.x

NPort Search Utility and NPort Windows Driver manager

SNMP MIB-II

Aluminum sheet metal (1 mm)

780 g

32 in)

-40 to 75°C (-40 to 167°F)

-40 to 85°C (-40 to 185° F)
5 to 95% (non-condensing)

Requirements

UL 60950-1, EN 60950 -1

CE, FCC

FCC Part 15 Subpart B Class A, FCC Subpart C/E, VCCI

EN 55022 Class A

CE (ETSI EN 301 893, ETSI EN 300 328), ARIB RCR STD-33, ARIB STD-66

2 KV (level 3)

RTC (real-time clock)

Built-in WDT (watchdog timer)

5 years

See www.moxa.com/warranty

Serial Port Pin Assignments

Pin RS-232 RS-422/ RS-485 (4W) RS-485 (2W)

1 DCD TxD-(A) --­2 RXD TxD+(B) --­3 TXD RxD+(B) Data+(B)
4 DTR RxD-(A) Data-(A)
5 GND GND GND
6 DSR --- --­7 RTS --- --­8 CTS --- --­9 --- --- ---

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2. Getting Started

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 Hard w are

 Connecting to the Network
 Connecting the Power
 Connecting to a Serial Device

NPort W2150A/W2250A Series Getting Started

2-2

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

NPort W2150A/W2250A Series Getting Started

2-3

LED Indicators

Top Panel LED Indicators

Name Color Function

Steady on: 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.

Steady on: Wireless enabled
Blinking: NPort can’t establish WLAN connection w ith A P

(Infrastructure) or station (Ad-Hoc)

1 Red - the signal strength is betw e e n 0% and 20%
2 Red - the signal strength is betwe e n 21% and 40%
3 Green - the signal streng th is betwe e n 41% and 60%
4 Green - the signal streng th is betwe e n 61% and 80%
5 Green - the sig nal stre ng th is betw e e n 81% and 100%

Ready

WLAN

Serial 1
Serial 2

Signal Strength

(5 LEDS)

Red

Green

Off Power is off or a power erro r cond ition exists.

Green

Off Wireless not enabled.

Orange Serial port is receiving data.

Green Serial port is transmitting data.

Off No data is flowing to or from the serial port.

Red

Green

End Panel LED Indicators

Name Color Function

Orange

Ethernet

Green

Off Etherne t c ab le is dis conne c te d

10 Mbps Ethernet connectio n
100 Mbps Ethernet connection

NPort W2150A/W2250A Series Getting Started

2-4

ATTENTION

Do not use the 1 KΩ setting while in RS

232 signals and reduce the

effective communication distance.

Pull High/Low Resistors for RS-422/485

You may need to set the pull high/low resistors when termination r e s is tor s are used for certa in RS -42 2 or
RS-485 environments.

S2 (Serial 1)
S3 (Serial 2)

ON 1 KΩ 1 KΩ 120 Ω -----

OFF *150 KΩ *150 KΩ *N/A -----

*Default

S3 is for NPort W2250A only

DIP 1

Pull high resistor

DIP 2

Pull low resistor

DIP 3

Terminal resistor

DIP 4

Reserved

-232 mode. Doing so will degrade the RS-

NPort W2150A/W2250A Series Getting Started

2-5

ATTENTION

Before connecting the hardware, follow the se impor tant w iring safety

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 ra

Calculate the maximum possible curre nt in each power wire and com mon wire . Observe all elec trical codes
dictating the maximum current allowab le for ea c h wire siz e .
If the current goes above the maximum ratings, the wiring could overheat, causing serious damage to your
equipment.

Use caution

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.

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 Mounti ng DIN-Rail Mounting

Connecting the Hardware

tings

- unit may get h ot

The following guidelines will help ens ure trouble-free signal communication with the NPort.

• Use separate paths to route wiring for power and devices to avoid inte rf er e nc e . Do not run signal or
communication wiring and power wiring in the same wire conduit. The r ul e of thumb is that wir ing 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

precautions:

NPort W2150A/W2250A Series Getting Started

2-6

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 conne c tion to the Ethernet as follows:

• A green Ethernet LED indicates a valid connecti o n to a 100 Mbps Etherne t ne two rk .

• An orange Ethernet LED indicates a valid connec tion to a 10 Mbps Ethernet network.

• A flashing Ethernet LED indicates that Ether ne t pac kets are being transm itte d or rec e ived.

Connecting the Power

Connect the VDC power line (12 to 48 V) to the NPort’s power jack or terminal blo ck. If po wer is pro perly
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.

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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 Conf iguration

3-2

ATTENTION

The LAN and WLAN interfaces cannot be used at the same time. If the Ethernet link is activ e , the n WLAN
connections will be disabled. If the WLAN connectio n is active, then the Ethe rnet link will be disabled.

ATTENTION

Make sure that the Ethernet cable is connected before power ing up the N Por t.

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 Searc h U tility.

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 configur ing the NPort. Please refer to Chapter 5 and 6 for
details on using the web console for configurati o n.

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.

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 addre s s for your NPor t. Co nsult with yo ur netw ork administrator if necessary.

2. Obtain the NPor t’ s MAC address fro m the lab e l on its bottom pane l.

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 assig ned to the NPort, and
00-90-E8-xx-xx-xx is the NPort’s MAC address.

4. From the DOS prompt, execute a special Te lne t co mm and 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 addre ss that will be ass igned to the NPort.

NPort W2150A/W2250A Series Initial IP Conf iguration

3-3

5. You will see a message ind i c ating that the c onnection failed.

The NPort will automatically reboot with the new IP addre s s. Yo u c an verify that the c onfiguration 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 log i n account and pass wo rd , then press ENTER.

4. You will login to the Overview page.

NPort W2150A/W2250A Series Initial IP Conf iguration

3-4

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.

NPort W2150A/W2250A Series Initial IP Conf iguration

3-5

7. Use the cursor keys to navigate b e twee n the diff er e nt fiel d s. For IP address, Netmask, and Gateway,
enter the desired values directl y. For IP co nfigur ation 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 ag ain.

NPort W2150A/W2250A Series Initial IP Conf iguration

3-6

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
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 presente d with a tex t 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 c harge from www.moxa.com

1. Connect your PC’s ser ial po rt to the NPort’s console port.

2. Open your termina l emulato r 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.

. The terminal type should be set as ANSI or VT100, and the

, to carry out the configuration procedure.

.

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 —esp ecial ly the “ Monito r” function—may not work
properly.

NPort W2150A/W2250A Series Initial IP Conf iguration

3-7

5. Hold the grave accent key (`) down and power up the NPort.

The continuous string of grave accent character s tr igger s 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 instruc tio ns o n how to navig ate the console a nd conf ig ure the IP settings .

4

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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 Ope r ation Modes

4-2

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 connectio n to the attac he d
serial
NPort serial port.

mode supports up to four
simultaneous connections, so multiple ho s ts can
collect data from the attached device at the same
time.

ATTENTION

RealCOM

Overview

This chapter introduces the different s eria l 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/TT Y-b as ed so f tware, without investing in additional
software.

Three different sock et modes a re available for user-de veloped socket programs: TCP Server, TCP Client, and
UDP Server/Client. For TCP applica tio ns , the appr opriate mode depends on whether the connection will be
hosted or initiated from the NPort serial port or fro m the network . T he 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 address es and would be suitable for streaming media or
non-critical messaging applications such as LED message boards.

Pair Connectio n Slave and Master modes are designe d f or se rial-to-serial communication over Ethernet, in
order to overcome traditional limitatio ns w ith s eria l tr a ns mission distance.

In Ethernet Modem mode, the NPort acts as an Etherne t mod em, prov i d ing a networ k connec ti o n to a host
through the serial port.

RealCOM Mode

device by mapping a local serial port to the

RealCOM

RealCOM mod e allows you to continue us ing your serial communications software to access devi c e s 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 networ k. At the other end of the
connection, the NPort device server accep ts the Ethe r ne t frame, unpack s the TCP/IP packet, and sends the
serial data to the appropriate device.

drivers are installed and configured thr o ugh NPor t Windo ws Driver Manager.

NPort W2150A/W2250A Series Introduction to Ope r ation Modes

4-3

ATTENTION

In

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 . Pl
information on Accessible IP settings.

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
simultaneous connections, so multiple ho s ts 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
device, and from the device to the host.

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. Afte r the
data has been transferred, the NPort can
automatically disconnect from the host computer
through the Inactivity time settings. Pleas e refe r to
Chapter 7 for details on these parameters.
Data transmission proceeds as follows:
The NPort reque
The connection is established and data can be
transmitted in both directions betwe e n the host and
device.

RealCOM

ease refer to Chapter 8 for additional

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 stand ard def ine s gener al COM por t contro l
options based on the Telnet protocol and supports one connec ti o n at a time. Third party drivers supporting
RFC-2217 are widely available on the Interne t and can be used to impleme nt vir tua l COM mapping .

TCP Server Mode

TCP Client Mode

sts a connection from the host.

eight

—from the host to the

NPort W2150A/W2250A Series Introduction to Ope r ation Modes

4-4

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 Master and Slave modes connect two
NPort device servers over a network for serial

serial
communication. A device attached to one NPor t can
then communicate transparently to a device attac he d
to the other NPort, as if the two devices were
connected by a serial cable. Both data
control signals are exchanged, except for DCD signals.
This can be used to overcome traditional limitatio ns
with serial communication distance and intr oduces
many new possibilities for serial-based device control.

Ethernet Modem mode is designed for use with legacy
operating systems, such as MS
support TCP/IP Ethernet. By connecting the prope r ly
configured NPort serial port to the MS-DOS computer’s
serial port, it is possible to use legacy softw are to
transmit data over the Ethernet when the software was
originally designed to transmit d ata over a modem.

UDP Mode

Pair Connection Modes

-to-

and mod em

Ethernet Modem Mode

-DOS, that do not

5

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5. Web Console: Basic Settings

The following topics are covered in this chapte r:

Overview
Basic Settings

NPort W2150A/W2250A Series Web Console: Basi c S ettings

5-2

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
selecting P

On the Security tab, click “Custom Level…” and enable these two items:
Allow cookies that are stored on your computer
Allow per

ATTENTION

If you are not
“allow cookies that are stored on your computer” or “allow per

Overview

This chapter introduces the NPort web conso le and expl ains ho w to conf ig ure the bas ic setting s .
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

-clicking the Internet Explorer icon on your desktop and
roperties from the context menu.

-session cookies (not stored).

using Internet Explorer, cookies are usually enabled thr ough a web browser setting such as

Navigating the Web Console

To open the web console, enter your device server’s IP addre s s in the website addre s s line. I f you are
configuring the NPort for the first time over an Ether ne t cable, y ou 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 prompte d for a passw or d if you have enab led

password protection on the device server. The password will b e tr ans mitte d w ith MD5 encryp tion over the
Ethernet.

.

-session cookies.”

NPort W2150A/W2250A Series Web Console: Basi c S ettings

5-3

ATTENTION

If you have forgotten the password, you can use the reset button to load factory defaults, but this will erase all
previous configuration infor mation.

The web console will appear as shown below.

Settings are presented on pages that are organized by folder. Sele c t the des ire d fol der in the lef t navig ation
panel to open that page. The page will be displayed in the main window on the rig ht. Certain f olders can be
expanded by clicking the adjacent “–” sym bol.

For example, if you click Basic Settings in the navigation panel, the main windo w w ill s how 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].

NPort W2150A/W2250A Series Web Console: Basi c S ettings

5-4

(GMT-02:00)Mid-Atlantic etc.

Once you click [Submit] button, the dev ice serv er will r eboo t and wi th 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_<serial no.> or NPortW2250A_<s e r ia l no.>
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 (GMT)Greenwich Mean Time
Options (GMT)Greenwich Mean Time

(GMT-01:00)Azores, Cape Verde Is.

Description This field shows the currently selected time zone and allows you to se lect a diff ere nt tim e

zone.

NPort W2150A/W2250A Series Web Console: Basi c S ettings

5-5

time clock that allows you to add time information to functions

ATTENTION

There is a risk of explosion if the real
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.

domain name, if a time server is

Local Time

Default
Options Date (yy:mm:dd), Time (hh:mm:ss)
Description The NPort has a built-in real-

such as the automatic warning e-mail or SNMP trap. This field shows the curre nt time
according to the NPort’s built-in real-time clo ck . This is no t 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!.

-time clock battery is replaced incorrectly!

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

used in your network. The NPort supports SNTP (RFC-1769) f or a utomatic time calib ration.
The device server will request time infor mati o n fro m the specif ie d time server ever y 10
minutes.