Moxa Technologies DE-211 User Manual

NPort

Express

Hardware Installation Guide

for DE-211

Sixth Edition, May 2006

Moxa Technologies Co., Ltd.

Tel: [phone]
Fax: [phone]
www.moxa.com

[e-mail] (Worldwide)
[e-mail] (The Americas)

1

NPort

Express

Hardware Installation Guide for DE-211

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

Copyright © 2006 Moxa Technologies Co., Ltd.

All rights reserved.

Reproduction without permission is prohibited.

Trademarks

MOXA is a registered trademark of The Moxa Group.

All other trademarks or registered marks in this manual belong to their respective

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, the particular purpose. Moxa reserves the
right to make improvements and/or changes to this manual or the product(s) and/or
program(s) described herein at any time.

Information provided in this manual is intended to be accurate and reliable. However,
Moxa Technologies assumes no responsibility for its use, or for any infringements
on the rights of third parties which may result from its use.

This manual could include unintentional technical or typographical errors. Changes
are periodically made to the information herein, with the changes
incorporated into new editions of the publication.

manufacturers.

Disclaimer

MOXA Internet Services

Customer satisfaction is our number one concern. To ensure that customers receive
the full benefit of our products, Moxa Internet Services has been set up to provide
technical support, driver updates, product information, and user’s manual updates.

The following services are provided:

E-mail for technical support:

address:
or:

Product information; latest drivers and documents:

address:
or

[e-mail] (Worldwide)
[e-mail] (The Americas)

http://www.moxa.com
http://www.moxa.com.tw

Table of Contents

1 Introduction ................................................................................ 1-1

Features ....................................................................................... 1-2

Product Specifications.................................................................. 1-2

Package Checklist........................................................................ 1-4

Front/Top/Rear/Bottom Panel Views ............................................ 1-5

2 Overview ..................................................................................... 2-1

LED Indicators.............................................................................. 2-1

Housing ........................................................................................ 2-2

DIN Rail ................................................................................ 2-2

Wall Mount............................................................................ 2-3

3 Serial Installation........................................................................ 3-1

DIP Switch Settings...................................................................... 3-1

Female DB25 Connector Pinout .................................................. 3-2

RS-232 Wiring.............................................................................. 3-3

RS-422 Wiring.............................................................................. 3-5

Using a DB25 Connector...................................................... 3-5

Using the Optional Terminal Block........................................ 3-5

RS-485 Wiring.............................................................................. 3-6

Using a DB25 Connector...................................................... 3-6

Using the Optional Terminal Block........................................ 3-7

Enabling a Termination Resistor .................................................. 3-8

Enabling the Built-In 120 Ω Terminator................................. 3-9

Enabling a User-Supplied Terminator................................. 3-10

4 Ethernet Installation................................................................... 4-1

Connecting to the Ethernet Port................................................... 4-1

Connecting to a Hub or Switch ............................................. 4-1

Connecting to a PC .............................................................. 4-2

5 Power Connection...................................................................... 5-1

Using the Power Adapter ............................................................. 5-1

Using Power Over Serial.............................................................. 5-2

Power Status Check ..................................................................... 5-3

A Declaration of Conformity.........................................................A-1

B Problem Report Form................................................................B-1

C Return Procedure.......................................................................C-1

11

1 Introduction

Welcome to Moxa NPort Express, a compact palm-sized communications device
that allows you to control RS-232/422/485 serial devices over a TCP/IP Ethernet.

This chapter is an introduction to NPort Express and includes the following
sections:

¾ Features

¾ Product Specifications

¾ Package Checklist

¾ Front/Top/Rear/Bottom Panel Views

NPort Express DE-211 provides a data communications solution for connecting
Windows and Linux hosts to asynchronous serial devices over a TCP/IP Ethernet.
You may connect your Windows 95/98/ME/NT/2000/XP host to a native
RS-232/422/485 serial port, or your PC-based Linux host to a real tty port, through a
TCP/IP Ethernet. With one asynchronous serial port connection on one end, and a
10 Mbps Ethernet connection on the other, NPort Express allows
virtually any serial device to attach to a network. NPort Express works like an
add-on single-port serial board to your PC server, but with one major advantage—the
TCP/IP network. Since the host communicates with the COM port on NPort
Express over a TCP/IP network, you are able to control your asynchronous serial
device from virtually any location.

Although it connects through the virtual link of the Ethernet, the port on NPort
Express is recognized as a real COM port by Windows or a real tty port by Linux.
NPort Express provides both the basic transmit/receive data functions, as well as
RTS, CTS, DTR, DSR, and DCD control signals.

NPort Express can be used with your existing applications that support serial
communication, and come with a utility program providing a simple step-by-step
installation procedure and a maintenance wizard that gives you easy access to your
asynchronous device.

Features

¾ 3-in-1 RS-232/422/485 interface and 10 Mbps Ethernet
¾ Supports 4- and 2-wire RS-485 with patented ADDC™ and built-in terminator
¾ Supports industrial 12/24 VDC power input and optional Power over Serial
¾ Terminal block accessory for easy RS-422/485 serial wiring
¾ Supports MAC based IP configuration
¾ Supports configuration store and copy for easy deployment
¾ Supports Windows Real COM driver and Linux real TTY driver
¾ Supports Driver Mode, TCP Server/Client, UDP Server/Client, Ethernet

Modem, Pair Connection

Product Specifications

Hardware

Processor 16 bit CPU
Memory 512 KB
Connector Female DB25

Interface

LAN 10BaseT
Serial RS-232/422/485 (DIP switch selectable)
No. of serial ports 1
Signals RS-232: TxD, RxD, RTS, CTS,
DTR, DSR, DCD, GND
RS-422: TxD+/-, RxD+/-, GND
RS-485 2-wire: Data+/-, GND
RS-485 4-wire: TxD+/-, RxD+/-, GND

Performance

Speed 50 bps to 230.4 Kbps

Configuration

Parity None, even, odd, space, mark
Data bits 5, 6, 7, 8
Stop bits 1, 1.5, 2

1-2

OS Supported
Windows 95/98/ME/NT/2000/XP Real COM driver, Linux real tty driver

Protocols

TCP, IP, UDP, Telnet, RTelnet, DHCP, BootP, ICMP

Operation Modes

Driver Mode, TCP Server, TCP Client, UDP Server/Client, Ethernet Modem,
Pair Connection

Management

Serial console
Telnet console
NPort Configurator for Windows/Linux
Real COM Installer for Windows
Monitor Utility for Windows
Firmware upgrade function supported
NPort Admin for Linux tty driver

Power

Power requirements

Operating temp. 0 – 55◦C
Operating humidity 5 – 95% RH
Dimensions (W×D×H) 90 × 100.4 × 22 mm (including ears)

Surge protection 15 KV ESD (RS-232), 12KV ESD (RS-422/485)
Magnetic isolation 1.5 KV for Ethernet
Regulatory approvals FCC B, CE B, UL, CUL, TÜV

and Environment

DC 12V to 30V
150 mA (max.) at 12V
92 mA (max.) at 24V
260 mA (max.) at 5V
(Power over Serial enabled)

67 × 100.4 × 22 mm (without ears)

1-3

Package Checklist

DE-211/110V

DE-211/230V

Both models include

y Windows 95/98/ME/NT/2000/XP Real COM driver, Linux real tty driver
y NPort Management Suite software
y Power Adapter
y User’s Manual, software CD-ROM

Optional Accessories
NP21101 30 cm DB25 male to DB9 female RS-232 cable
NP21102 30 cm DB25 male to DB9 male RS-232 cable
NP21103 DB25 terminal block kit for RS-422/485
DIN Rail mounting kit For 35 mm DIN Rail; includes 4 screws

1 NPort Express DE-211 Universal Serial Device
Server

1 NPort Express DE-211 Universal Serial Device
Server

1-4

Front/Top/Rear/Bottom Panel Views

1. Female DB25 serial port

2. DIN Rail screw holes

3. Wall mount screw holes

4. RJ45 10BaseT Ethernet port

5. Reset button—press
continuously for

a. 3 sec to erase password

After 3 sec, the ready
LED will flash on/off
every half second.
Release the reset button
at this time to erase
password.

b. 10 sec to load factory

defaults
After 10 sec, the ready
LED will flash on/off
every fifth of a second.
Release the reset button
at this time to load
factory defaults.

6. DIP Switches

7. Power input

8. Rubber base pads

1-5

2 Overview

r

r

N

N

This chapter includes:

¾ LED Indicators
¾ Housing

• DIN Rail

• Wall Mount

LED Indicators

NPort Express’s top panel contains five LED indicators, as described in the
following table.

22

LED Name LED Colo

PWR

Link

Ready

Serial Tx

Serial Rx

blinking

ed Power is on.

off Power is off, or power error condition exists.

orange 10 Mbps Ethernet connection.

off Ethernet cable is disconnected, or has a short.

green

off

green Serial data is being transmitted.

off Serial data is not being transmitted.

orange Serial data is being received.

off Serial data is not being received.

Port Server system is ready.

NPort is requesting an IP address from the
DHCP or BootP server. After receiving the IP,
the LED will stop blinking.

Note: The LED will also blink when you press
the reset button; see page 1-5 for details.

Port Server has malfunctioned.

LED Function

Housing

DIN Rail

For many industrial applications, you will find it convenient to use the DIN Rail
attachments, as shown below.

STEP 1: Use 2 screws per ear to attach DIN Rail mounts to each of NPort

Express’s two ears.

⇒

STEP 2: Insert the top of the DIN Rail

into slot A of the DIN Rail
mount.

STEP 3: Push the bottom of NPort

Express so that the bottom of
the DIN Rail snaps into slot B
of the DIN Rail mount.

 NOTE: The Din Rail mounting kit is an optional accessory.

To remove NPort Express from the DIN Rail, simply reverse Steps 2 and 3 above by
grasping the bottom of the NPort Express unit with both hands, and then using your
fingers to pull down slightly on the DIN Rail mounts at slot B. This releases the
bottom of the DIN Rail from the DIN Rail mount.

2-2

Wall Mount

For many industrial applications, you will find it convenient to mount NPort
Express on the wall, using two screws, as indicated below.

STEP 1: Screw two screws, separated by 7.8 cm, into the wall. The heads of the

screws should be no greater than 6.5 mm in diameter, and the shafts
should be no greater than 3 mm in diameter. Do not screw the screws in
all the way—leave a space of about 2 mm to allow room for sliding the
NPort Express unit’s ears between the wall and the screws.

STEP 2: Insert the two screw heads

through the large parts of the
keyhole shaped apertures, and
then slide NPort Express
downwards, as indicated.

To remove NPort Express from the wall mount, simply reverse Steps 2 and 3.

STEP 3: For added stability, simply

tighten the two screws.

2-3

3 Serial Installation

We discuss the following topics:

¾ DIP Switch Settings
¾ DB25 Female Connector Pinout
¾ RS-232 Wiring
¾ RS-422 Wiring
¾ 4-Wire RS-485 Wiring

• Using a DB25 connector

• Using the optional Terminal Block

¾ Enabling a Termination Resistor

• Enabling the Built-In 120 Ω Terminator

• Enabling a User-Supplied Terminator

33

DIP Switch Settings

The top panel of NPort Express contains the following table, which describes how to
set up the serial port using the four DIP switches located on NPort
Express’s rear panel.

SW1

ON

OFF

Serial

Connection

RS-232

Console

Data

Comm

SW2 SW3 SW4 Serial Interface Mode

OFF OFF OFF RS-232
OFF ON ON RS-422

ON OFF ON 4-Wire RS-485 by RTS
ON ON ON 4-Wire RS-485 ADDC
ON OFF OFF 2-Wire RS-485 by RTS
ON ON OFF 2-Wire RS-485 ADDC

Switch SW1 controls the function of the serial port (ON, or up, for RS-232

SGND

Console connection, and down for Data Communication, such as when NPort
Express is connected to your serial device). Note that after changing the setting of
SW1, NPort Express will reboot to initialize the new setting. You must wait a few
seconds for the green Ready light to blink off and then on again, indicating that the
function of the serial port has been changed.

Switches SW2, SW3, and SW4 control the serial port’s data communication
Interface Mode. (Note that RTS stands for Ready To Send and ADDC stands for
Automatic Data Direction Control.)

Keep the following points in mind when setting the DIP switches.

• RS-232 Console

To use the serial port as a console connection, such as when using MOXA
PComm Terminal Emulator or HyperTerminal, set SW1 to the ON position.

• Telnet Connection

Some setup procedures can be carried out through a Telnet connection,
during which data is transmitted through NPort Express’s Ethernet port.
However, you must set SW1 to the OFF position to establish a Telnet
connection.

Female DB25 Connector Pinout

1

Do not use this pin *

RXD (in)

TXD (out)

CTS (in)

RTS (out)

DTR (out)

SGND

DCD (in)

Reg. +5 VDC (out)

Power GND for 5 VDC

14

TXD+(B)

TXD-(A)

DSR (in)
RXD+(B)/Data+(B)
RXD-(A)/Data-(A)

Unreg. 12-30 VDC (in)

Power GND for 12-30 VDC

RS-232C RS-422/485

13

25

* This pin is reserved debugging. Connections this pin yourself could result in
irreparable damage to your device.

3-2

RS-232 Wiring

* NP21101 is an optional accessory for DE-211

* NP21102 is an optional accessory for DE-211

3-3

 NOTE: The following pin out di a gr am shows how to use a DB25 (M) to DB25

(F) cable.

 NOTE: In Ethernet Modem Mode, you need a special cable—shown in the

following pinout diagram—to simulate a DCD signal.

3-4

RS-422 Wiring

Using a DB25 Connector

Using the Optional Terminal Block

 NOTE: Use a flathead screwdriver to tighten the two attachment screws that

connect the terminal block to NPort Express.

3-5

RS-485 Wiring

Using a DB25 Connector

3-6

Using the Optional Terminal Block

4-wire RS-485 Terminal Block Wiring

 NOTE: Use a flathead screwdriver to tighten the two attachment screws that

connect the terminal block to NPort Express.

2-wire RS-485 Terminal Block Wiring

 NOTE: Use a flathead screwdriver to tighten the two attachment screws that

connect the terminal block to NPort Express.

3-7

 NOTE: When setting up a multidrop network, a daisy-chained network should

be used. Construct your device-to-device wiring as indicated in the
above figure.

Enabling a Termination Resistor

For RS-422/485 serial communications, when an electrical signal travels through
two different resistance junctions in a transmission line, the impedance mismatch
will sometimes cause signal reflection. Signal reflection causes signal distortion,
which in turn will contribute to communication errors. The solution to this problem
is to establish the same impedance at the line ends as in the line itself, by
terminating them with resistors.

The impedance of the termination resistor should equal the characteristic impedance
of the transmission line. The resistors should be added near the receiving side.

3-8

Enabling the Built-In 120 Ω Terminator

To enable NPort Express’s built-in 120 Ω termination resistor, you must short the
bottom two pins of jumper 6 (JP6), on DE-211’s circuit board. To do this:

1. Use a screwdriver to remove DE-211’s outer protective case, and then locate
JP6, as shown in the figures below.

2. By default, the top two pins of JP6 are shorted, which means that the built-in
120 Ω termination resistor is disabled (completely removing the jumper from
the pins also disables the resistor).

3. Use the jumper to short the bottom two pins of JP6 to enable the built-in 120 Ω
termination resistor.

3-9

Enabling a User-Supplied Terminator

When using the terminal block, you may install your own external terminator
resistor by connecting the ends of the resistor directly to inputs 2 and 3, or by
connecting the two ends of the resistor to the wires that emanate from inputs 2 and 3,
as shown in the following diagrams.

Enabling a user-supplied Terminator on-the-wire

Enabling a user-supplied Terminator on-the-block

3-10

44

4 Ethernet Installation

We discuss the following topics:
¾ Connecting to the Ethernet Port

• Connecting to a Hub or Switch

• Connecting to a PC

Connecting to the Ethernet Port

Connecting to a Hub or Switch

For most applications, you will simply plug one end of your Ethernet cable into
NPort Express’s 10BaseT port, and the other end into a Hub or Switch that is
connected to your network. In this case, you should use a standard straight-through
Ethernet cable, which is readily available from many commercial vendors. If
necessary however, you can make your own cable by referring to the following
cable wiring diagram.

Connecting to a PC

In some cases, such as when configuring drivers and software, you will find it
convenient to hook NPort Express directly to your computer’s Ethernet card. To do
this, you will need to use a cross-over Ethernet cable. This type of Ethernet cable is
harder to find, although you can make your own cable by referring to the following
cable wiring diagram.

4-2

5 Power Connection

We discuss the following topics:

¾ Using the Power Adapter
¾ Using Power Over Serial
¾ Power Status Check

Using the Power Adapter

Take the following steps to connect NPort Express’s power adapter.

1. Plug the power adapter’s DC plug into NPort Express’s DC-IN jack.

2. Plug the power adapter into an electrical outlet.

Note that there is no on/off switch. The server turns on as soon as the connected
power adapter is plugged into a live outlet. The red PWR light on NPort Express’s
top panel will glow to indicate that it is receiving power.

55

Using Power Over Serial

Take the following steps to set up NPort Express’s Power over Serial option.
IMPORTANT NOTICE
You may not use the power adapter and Power Over Serial option at the same time.

Using both power options at the same time could cause irreparable damage to your
NPort Express unit.

(1) To use the 12 – 30 VDC Power over Serial option, enable jumpers JP4 and JP5,

as illustrated in the following diagram. Note that when using the 12 – 30 VDC
option, power is supplied via pins 12 and 13:

5-2

Do NOT force either jumper horizontally, as shown in the
diagram. Doing so could cause serious damage to your DE-211, or
to the serial device connected to DE-211’s serial port.

To use the 5 VDC Power over Serial option, enable jumpers JP2 and
JP3, as illustrated in the following diagram. Note that when using the

5 VDC option, power is
supplied via pins 9 and
10:

Do NOT force the jumper to connect the lower pin of JP2 to the
upper pin of JP3, as shown in the diagram. Doing so could cause
serious damage to your DE-211, or to the serial device connected
to DE-211’s serial port.

Power Status Check

Use the PWR LED indicator on NPort Express’s top panel to see if it is receiving
power. A red light indicates that power is being received. The absence of a light
indicates that power is not being received. If the unit is plugged in, or is receiving
power over cable, then an unlit PWR LED indicator shows that something is wrong
with the NPort Express unit’s operation.

5-3

AA

A Declaration of Conformity

Manufacturer’s Name: Moxa Technologies Co., Ltd.
Manufacturer’s Address: Fl.4, No.135, Lane 235, Pao-Chiao Rd., Shing Tien

City, Taipei, Taiwan, R.O.C.
declares that the product:
Product Name: NPort Express
Model Number: DE-211

conforms to the following standards:
EMC: FCC Class B
EN55022:1998 class B

EN61000-3-2:1995 class B
EN61000-3-3:1995
EN55082-1:1997
EN61000-4-2:1995

Contact Discharge 4kV, Air Discharge 8kV
EN61000-4-3:1995

EN61000-4-4:1995
AC/DC Power supply 1kV, Data/Signal lines 5kV
EN61000-4-5:1995
AC/DC Line to Line 1kV, AC/DC Line to Earth 2kV
EN61000-4-6:1995

EN61000-4-8:1993
3A/m at 50Hz
EN61000-4-11:1994
Safety UL/CUL, TUV

EN60950

BB

B Problem Report Form

NPort

Customer name:

Company:
Tel : Fa x:
Email: Date:

1. Moxa Product:  DE-211 (1 RS-232/422/485 port)

2. Interface:  RS-232  RS-422  RS-485 (ADDC)  RS-485 (by RTS)

3. Operation mode:

 Host Based
 Raw Connection (TCP Server)  Raw Connection (TCP Client)
 UDP Server/Client  Ethernet Modem

4. Serial Number: ___________

5. NPort Firmware Version: ________________

6. NPort Manager Version: ________________

7. NPort Configurator Version: ________________

8. PC Host: Make _________ Model _________

9. Your Installation Type:  Single-Host  Custom

10. Problem Description: Please describe the symptoms as clearly as possible,

including all error messages. Be complete, since we may need to follow your
description to reproduce the symptoms.

Express

 Pair Connection

C Return Procedure

For product repair, exchange, or refund, the customer must:

♦ Provide evidence of original purchase.

♦ Obtain a Product Return Agreement (PRA) from the sales

representative or dealer.

♦ Fill out the Problem Report Form (PRF). Include as much detail

as possible for a shorter product repair time.

♦ Carefully pack the product in an anti-static package, and send it,

pre-paid, to the dealer. The PRA should be visible on the outside
of the package, and include a description of the problem, along
with the return address and telephone number of a technical
contact.

CC