Moxa CN2650, CN2610, CN2600-2AC User Manual

CN2600 Series Dual-LAN Terminal Server

User’s Manual

Edition 12.0, November 2017

www.moxa.com/product

© 2017 Moxa Inc. All rights reserved.

CN2600 Series Dual-LAN Terminal Server

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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

© 2017 Moxa Inc. All rights reserved.

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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

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information herein to correct such errors, and these changes are incorporated into new editions of the publication.

Technical Support Contact Information

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Table of Contents

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

Package Checklist ............................................................................................................................... 1-2

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

Front Panel ........................................................................................................................................ 1-2

Rear Panel ......................................................................................................................................... 1-3

2. Hardware Installation ....................................................................................................................... 2-1

Desktop ............................................................................................................................................. 2-2

Rackmount ........................................................................................................................................ 2-2

Wiring Requirements ........................................................................................................................... 2-2

Connecting the CN2600-8/16’s Power ................................................................................................... 2-3

Connecting the CN2600-8/16-HV’s Power .............................................................................................. 2-3

Grounding the CN2600-8/16-HV ........................................................................................................... 2-4

Connecting to the Network ................................................................................................................... 2-4

Connecting to a Serial Device ............................................................................................................... 2-4

Connecting to the Console Port ............................................................................................................. 2-4

Adjustable Pull High/Low Resistors for the RS-485 Port ........................................................................... 2-5

3. Initial IP Address Configuration ........................................................................................................ 3-1

Static and Dynamic IP Addresses .......................................................................................................... 3-2

Factory Default IP Address ................................................................................................................... 3-2

Configuration Options .......................................................................................................................... 3-2

Terminal Server Search Utility....................................................................................................... 3-2

Web Console ............................................................................................................................... 3-2

LCM Console/Front Panel .............................................................................................................. 3-2

ARP ........................................................................................................................................... 3-3

Telnet Console ............................................................................................................................ 3-4

Serial Console ............................................................................................................................. 3-7

4. Serial Port Operation Modes .............................................................................................................. 4-1

Overview ........................................................................................................................................... 4-2

Device Control Applications .................................................................................................................. 4-2

Real COM Mode ........................................................................................................................... 4-2

RFC2217 Mode ............................................................................................................................ 4-3

Socket Applications ............................................................................................................................. 4-3

TCP Server Mode ......................................................................................................................... 4-3

TCP Client Mode .......................................................................................................................... 4-3

UDP Mode .................................................................................................................................. 4-4

Redundant COM ................................................................................................................................. 4-4

Dual-host Redundant Data Acquisition System (DRDAS) .......................................................................... 4-5

Terminal Applications .......................................................................................................................... 4-6

Terminal ASCII Mode ................................................................................................................... 4-6

Terminal BIN Mode ...................................................................................................................... 4-6

Reverse Terminal Applications .............................................................................................................. 4-7

Reverse Telnet ............................................................................................................................ 4-7

Dial In/Out Modes ............................................................................................................................... 4-8

Disabled Mode .................................................................................................................................... 4-8

5. Configuration with the Web Console ................................................................................................. 5-1

Using Your Web Browser ...................................................................................................................... 5-2

Browser Cookie Settings............................................................................................................... 5-2

Trusted Site Settings ................................................................................................................... 5-3

Opening the Web Console ............................................................................................................. 5-4

Web Console Navigation ...................................................................................................................... 5-5

Basic Settings .................................................................................................................................... 5-5

Server Settings ........................................................................................................................... 5-5

Time Settings ............................................................................................................................. 5-5

Network Settings ................................................................................................................................ 5-6

Basic Network Settings ................................................................................................................ 5-6

Advanced Network Settings .......................................................................................................... 5-8

Configuring the Route Table.......................................................................................................... 5-9

6. Configuring Serial Port Operation Modes .......................................................................................... 6-1

Port Setting Basics .............................................................................................................................. 6-2

Device Control Applications .................................................................................................................. 6-3

Real COM Mode ........................................................................................................................... 6-3

RFC2217 Mode ............................................................................................................................ 6-5

Socket Applications ............................................................................................................................. 6-6

TCP Server Mode ......................................................................................................................... 6-6

TCP Client Mode .......................................................................................................................... 6-8

UDP Mode ................................................................................................................................ 6-11

Redundant COM ............................................................................................................................... 6-12

DRDAS ............................................................................................................................................ 6-14

DRDAS Real COM ...................................................................................................................... 6-14

DRDAS TCP Server .................................................................................................................... 6-16

Terminal Applications ........................................................................................................................ 6-18

Terminal ASCII (TERM_ASC) ....................................................................................................... 6-18

Terminal BIN (TERM_BIN) .......................................................................................................... 6-19

Reverse Terminal .............................................................................................................................. 6-21

Dial In/Out Applications ..................................................................................................................... 6-22

PPP Mode ................................................................................................................................. 6-22

PPPD Mode ............................................................................................................................... 6-23

SLIP Mode ................................................................................................................................ 6-24

SLIPD Mode .............................................................................................................................. 6-25

Dynamic Mode .......................................................................................................................... 6-26

Disabled Mode .................................................................................................................................. 6-26

7. Additional Serial Port Settings .......................................................................................................... 7-1

Port Communication Parameters ........................................................................................................... 7-2

Serial Parameters ............................................................................................................................... 7-2

Port Data Buffering/Log ....................................................................................................................... 7-3

Port Modem Settings ........................................................................................................................... 7-3

Welcome Message .............................................................................................................................. 7-4

8. System Management Settings ........................................................................................................... 8-1

Misc. Network Settings ........................................................................................................................ 8-2

Accessible IP List ......................................................................................................................... 8-2

SNMP Agent Settings ................................................................................................................... 8-3

DDNS ........................................................................................................................................ 8-4

Host Table .................................................................................................................................. 8-4

User Table .................................................................................................................................. 8-5

Authentication Server .................................................................................................................. 8-5

System Log Settings .................................................................................................................... 8-6

Auto Warning Settings ......................................................................................................................... 8-6

Event Settings ............................................................................................................................ 8-6

Serial Event Settings ................................................................................................................... 8-7

E-mail Alert ................................................................................................................................ 8-8

SNMP Trap ................................................................................................................................. 8-9

Maintenance ...................................................................................................................................... 8-9

Console Setting ........................................................................................................................... 8-9

Ping ......................................................................................................................................... 8-10

Firmware Upgrade ..................................................................................................................... 8-10

Configurating Import/Export ....................................................................................................... 8-11

Load Factory Defaults ................................................................................................................ 8-12

Change Password ...................................................................................................................... 8-12

Certificate ........................................................................................................................................ 8-13

Ethernet SSL Certificate Import ................................................................................................... 8-13

Certificate/Key Delete ................................................................................................................ 8-13

System Monitoring ............................................................................................................................ 8-13

Serial to Network Connections .................................................................................................... 8-13

Serial Port Status ...................................................................................................................... 8-14

Serial Port Error Count ............................................................................................................... 8-14

Serial Port Settings .................................................................................................................... 8-14

Network Connections ................................................................................................................. 8-15

Network Statistics ..................................................................................................................... 8-15

Serial Data Log ......................................................................................................................... 8-16

System Log .............................................................................................................................. 8-16

Routing .................................................................................................................................... 8-17

Save Configuration ........................................................................................................................... 8-17

Restart ............................................................................................................................................ 8-18

Restart System ......................................................................................................................... 8-18

Restart Ports............................................................................................................................. 8-18

9. Software Installation/Configuration ................................................................................................. 9-1

NPort Search Utility ............................................................................................................................. 9-2

Installing NPort Search Utility ....................................................................................................... 9-2

Configuring NPort Search Utility .................................................................................................... 9-4

Windows Driver Manager ..................................................................................................................... 9-5

Installing NPort Windows Driver Manager ....................................................................................... 9-5

Using NPort Windows Driver Manager ............................................................................................ 9-7

Windows Monitor Utility ..................................................................................................................... 9-14

Installing the NPort Monitor Utility ............................................................................................... 9-14

Using the NPort Monitor Utility .................................................................................................... 9-16

Linux Real TTY Drivers ...................................................................................................................... 9-18

Basic Procedures ....................................................................................................................... 9-18

Hardware Setup ........................................................................................................................ 9-18

Installing Linux Real TTY Driver Files ........................................................................................... 9-18

Mapping TTY Ports ..................................................................................................................... 9-19

Removing Mapped TTY Ports ....................................................................................................... 9-20

Removing Linux Driver Files ........................................................................................................ 9-20

The UNIX Fixed TTY Driver ................................................................................................................. 9-21

Installing the UNIX Driver........................................................................................................... 9-21

Configuring the UNIX Driver ....................................................................................................... 9-21

A. Pinouts and Cable Wiring .................................................................................................................. A-1

Port Pinout Diagrams .......................................................................................................................... A-2

RS-232/422/485 (Male DB9) Pinouts ............................................................................................. A-2

RS-232 (Male DB9) Pinouts .......................................................................................................... A-2

RS-232 (Male RJ45) Pinouts ......................................................................................................... A-3

RS-232/422/485 (Male RJ45) Pinouts ............................................................................................ A-3

Cable Wiring Diagrams ........................................................................................................................ A-4

Ethernet Cables........................................................................................................................... A-4

Serial Cables (RS-232) ................................................................................................................. A-4

Serial Cables (RS-422/4-Wire RS-485) ........................................................................................... A-6

Serial Cables (2-Wire RS-485) ...................................................................................................... A-7

Pin Assignments for DB9 and DB25 Connectors ............................................................................... A-8

B. SNMP Agent with MIB II ................................................................................................................... B-1

C. Dynamic Domain Name Server .......................................................................................................... C-1

Overview ........................................................................................................................................... C-1

Configuration ..................................................................................................................................... C-2

D. Well Known Port Numbers ................................................................................................................ D-1

E. RADIUS Server .................................................................................................................................. E-1

What is RADIUS? ................................................................................................................................ E-2

Definition ................................................................................................................................... E-2

Client/Server Architecture ............................................................................................................ E-2

Setting up the CN2600 ........................................................................................................................ E-3

Setting up the RADIUS Server IP Address ....................................................................................... E-3

Serial Port Configuration .............................................................................................................. E-3

Setting up UNIX Hosts ......................................................................................................................... E-3

Setting up Windows NT Hosts ............................................................................................................... E-4

Setting up Windows 2000 Hosts ........................................................................................................... E-5

Setting up Windows 2003 Hosts ........................................................................................................... E-8

F. CN2600 Series Comparison Table ...................................................................................................... F-1

1

NOTE

In this manual, we often refer to all terminal servers in the CN2600 series collectively as the CN2600.

NOTE

The wide temperature model does not have an LCM Display panel and push buttons. The LCM description in this

manual applies only to standard temperature models.

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1. Introduction

Moxa’s CN2600 series of dual-LAN terminal servers is available in models with 8 or 16 RS-232 or

RS-232/422/485 ports, and all models come with two 10/100 Mbps Ethernet LAN ports. The CN2600 dual-LAN

terminal servers are used to connect terminals, modems, printers, and other asynchronous serial devices to

LAN hosts. The CN2600 dual-LAN terminal servers comply with TCP/IP and IEEE 802.3 specifications using

standard Ethernet 10/100BaseT and twisted pair 10/100BaseTX cable as the data transmission medium.

The following topics are covered in this chapter:

Package Checklist

Product Features

Front Panel

Rear Panel

CN2600 Series Introduction

1-2

NOTE

Wide temperature models do not have

Red

Indicates that the CN2600 is receiving power

Package Checklist

All CN2600 dual-LAN terminal servers are shipped with the following items:

• CN2600 dual-LAN terminal server

• Power cord (AC models only)

• Document and Software CD-ROM

• Quick Installation Guide (English and Simplified Chinese versions)

• RJ45 Loopback Tester

• Warranty card

• Rackmount Kit (includes 2 brackets and 8 screws)

• Desktop Kit (includes 4 pads)

Product Features

The CN 2600 series has the following features:

• LCD panel for easy IP address configuration (excluding wide temperature models)

• Dual-LAN cards with two independent MAC addresses and IP addresses

• Redundant COM function available when both LANs are active

• Dual-host redundancy can be used to add a backup PC to your system

• Dual AC power inputs (AC models only)

• Real COM/TTY drivers for Windows and Linux

• Universal high-voltage range: 100 to 240 VAC or 88 to 300 VDC

Front Panel

Buttons

Item Description

Reset Button Press the Reset button for 5 seconds to load factory defaults. The CN2600 will beep twice

Push Buttons Used for configuring the IP address and other parameters.

an LCM Display Panel.

when the configuration has been reset.

LEDs

Item Description

Ready

Tx Green Indicates serial port transmission

Green Indicates that the CN2600’s OS is ready

CN2600 Series Introduction

1-3

Item Description

Rx Yellow Indicates serial port reception

LAN 1, LAN 2 Green Ethernet link connection

Off Ethernet cable is disconnected

PWR 1, PWR 2 Red Power connection

Off Power cable is disconnected

Rear Panel

CN2610/CN2650 2AC

Series

Socket / Port Description

AC Power Input Automatic detection of 100 to 240 V, 47 to 63 Hz AC power supply

DC Power Input Automatic detection of 88 to 300 V

Power On/Off Switch I indicates power on; O indicates power off (AC models only)

Console 8-pin RJ45 RS-232 port for console terminal connection

LAN 1 8-pin RJ45 auto-detectable 10/100 Mbps UTP port

LAN 2 8-pin RJ45 auto-detectable 10/100 Mbps UTP port

Serial Ports 8 or 16 8-pin RJ45 or DB9 ports for DCE modem-type connections

2

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2. Hardware Installation

This chapter includes instructions on where and how to install the CN2600 dual-LAN terminal server. Both basic

and advanced software configuration instructions are given.

The following topics are covered in this chapter:

Desktop

Rackmount

Wiring Requirements

Connecting the CN2600-8/16’s Power

Connecting the CN2600-8/16-HV’s Power

Grounding the CN2600-8/16-HV

Connecting to the Network

Connecting to a Serial Device

Connecting to the Console Port

Adjustable Pull High/Low Resistors for the RS-485 Port

CN2600 Series Hardware Installation

2-2

ATTENTION

Safety First!

Be sure to disconnect the power cord before installing and/or wiring your CN2600.

Wiring Caution!

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 d

equipment.

Temperature Caution!

Be careful when handling the CN2600. When plugged in, the CN2600’s internal components generate heat, and

consequently the board may feel hot to the touch.

NOTE

Do not run signal or communication wiring and power wiring in the same wire conduit. To avoid interference,

wires with different signal characteristics should be routed separately.

Desktop

Place your CN2600 on a clean, flat, well-ventilated desktop. For better ventilation, attach the 4 pads from the

desktop kit to the bottom of the unit, and leave some space between the CN2600 and other equipment. Do not

place equipment or objects on top of the unit, as this might damage the server.

Rackmount

The CN2600 is designed to be mounted on a standard 19-inch rack. Use the enclosed pair of L-shaped metal

brackets and screws to fasten your CN2600 to the rack cabinet. Each L-shaped bracket has 6 holes, leaving two

outer or inner holes available for other uses. You have two options. You can lock either the front or rear panel

of the CN2600 to the front of the rack. Locking the front panel is shown in the following figure.

Wiring Requirements

You should also observe the following common wiring rules:

• Use separate paths to route wiring for power and devices. If power wiring and device wiring paths must

cross, make sure the wires are perpendicular at the intersection point.

amage to your

CN2600 Series Hardware Installation

2-3

WARNING

CL 1.7.9 Isola

Where there is more than one connection supplying HAZARDOUS VOLTAGES or HAZARDOUS ENERGY LEVELS

to equipment, a prominent marking, located close to the entry point provided for a SERVICE PERSON to gain

access to the hazardous parts, shall be provided to indicate which disconnect device or devices isolate the

equipment completely and which disconnect devices can be used to isolate each section of the equipment.

CAUTION: This server may be shipped with multiple power supplies that require more than one connector to AC

mains. The AC power cords are considered to be the mains disconnect device for the server; always disconnect

power supply cords before opening up or servicing the server.

NOTE

You should use 8 kg

CN2600

• You can use the type of signal transmitted through a wire to determine which wires should be kept separate.

The rule of thumb is that wiring that shares similar electrical characteristics can be bundled together.

• Keep input wiring and output wiring separate.

• Where necessary, it is strongly advised that you label wiring to all devices in the system.

Connecting the CN2600-8/16’s Power

Connect the CN2600’s 100-240 VAC power line to its AC connector. If the power is properly supplied, the

“Ready” LED will show a solid red color until the system is ready, at which time the color changes to green.

tion of multiple power sources & CL 3.4.11 Multiple power sources:

Connecting the CN2600-8/16-HV’s Power

To connect the CN2600-8/16-HV’s power cord with its terminal block, follow the steps given below:

1. Loosen the screws on the V+ and V- terminals of the CN2600-8/16-HV’s terminal block.

2. Connect the power cord’s VDC wire to the terminal block’s V+ terminal, and the power cord’s DC power

ground wire to the terminal block’s V- terminal, and then tighten the terminal block screws. (Note: the

CN2600-8/16-HV can still operate even if the DC and DC power ground are reversed.)

If the power is properly supplied, the “Ready” LED will show a solid red color until the system is ready, at which

time the “Ready” LED will change to a green color.

-8/16-HV’s power cord to its terminal block.

-cm of screw torque and 22-14 AWG of suitable electric wire to connect the

CN2600 Series Hardware Installation

2-4

ATTENTION

This product is intended to be

The top right corner LED indicator maintains a solid green color w

connected to a 100 Mbps Ethernet network.

The top left corner LED indicator maintains a solid orange color when the cable is properly

connected to a 10 Mbps Ethernet network.

Grounding the CN2600-8/16-HV

Grounding and wire routing help limit the effects of noise due to electromagnetic interference (EMI). Run the

ground connection from the ground screw to the grounding surface prior to connecting devices. The shielded

ground (sometimes called protected ground) contact is the second contact from the right of the 5-pin power

terminal block connector located on the rear panel of the CN2600-8/16-HV. Connect the SG wire to the Earth

ground

mounted to a well-grounded mounting surface such as a metal panel.

Connecting to the Network

Connect one end of the Ethernet cable to the CN2600’s 10/100M Ethernet port and the other end of the cable

to the Ethernet network. There are 2 LED indicators located on the top left and right corners of the Ethernet

connector. If the cable is properly connected, the CN2600 will indicate a valid connection to the Ethernet in the

following ways:

Connecting to a Serial Device

Use appropriately wired serial data cables to connect serial devices to the CN2600’s serial ports.

hen the cable is properly

Connecting to the Console Port

A console is a combination of keyboard and monitor that is used to configure settings and monitor the status

of your system. The console port can be used if a network is unavailable, or you do not know the CN2600’s IP

address. To connect to the console port, use a PC running UNIX, or a PC with terminal emulation software (e.g.,

HyperTerminal or PComm by Moxa; parameter settings are: baudrate = 115200 bps, parity check = None, data

bits = 8, stop bits = 1, terminal type = VT100). Use an RJ45-to-DB25 or RJ45-to-DB9 cable to connect the

terminal to the console port.

CN2600 Series Hardware Installation

2-5

ATTENTION

Do not use the 1 KΩ setting on the CN26

232

signals, shorten the

Adjustable Pull High/Low Resistors for the RS-485 Port

In some critical environments, you may need to add termination resistors to prevent the reflection of serial

signals. When using termination resistors, it is important to set the pull high/low resistors correctly so that the

electrical signal is not corrupted. The CN2600 uses jumper settings or DIP switches to set the pull high/low

resistor values for each serial port.

To set the pull high/low resistors to 150 KΩ, make sure both of the assigned DIP switches are in the OFF

position. This is the default setting.

To set the pull high/low resistors to 1 KΩ, make sure both of the assigned DIP switches are in the ON position.

maximum allowed communication distance, and the Rx LED may light up.

50 when using the RS-232 interface. Doing so will degrade the RS-

3

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3. Initial IP Address Configuration

When setting up the CN2600 for the first time, the first thing you should do is configure its IP address. This

chapter introduces the different methods that can be used. Please refer to Chapter 8, System Management

Settings, for more details about network settings.

The following topics are covered in this chapter:

Static and Dynamic IP Addresses

Factory Default IP Address

Configuration Options

 Terminal Server Search Utility

 Web Console

 LCM Console/Front Panel

 ARP

 Telnet Console

 Serial Console

CN2600 Series Initial IP Address Configuration

3-2

ATTENTION

Consult your network administrator on how to reserve a fixed IP address for your CN2600 in the MAC

mapping table when using a DHCP Server or BOOTP Server. For most applications, you should assign a fixed

IP address to your CN2600.

NOTE

The wide temperature model does not have an LCM Display panel and push buttons. The LCM description below

applies only to standard temperature models.

Static and Dynamic IP Addresses

Determine whether your CN2600 needs to use a static IP or dynamic IP address (either DHCP or BOOTP/PPPoE

application).

• If your CN2600 terminal server is used in a static IP environment, you will assign a specific IP

address using one of the tools described in this chapter.

• If your CN2600 terminal server is used in a dynamic IP environment, the IP address will be assigned

automatically from over the network. In this case, set the IP configuration mode to DHCP, DHCP/BOOTP,

BOOTP, or PPPoE.

Factory Default IP Address

The CN2600 is configured with the following default private IP addresses:

192.168.126.254 and 192.168.127.254

Note that IP addresses that begin with “192.168” are referred to as private IP addresses. Devices configured

with a private IP address are not directly accessible from a public network. For example, you would not be able

to ping a device with a private IP address from an outside Internet connection. If your application requires

sending data over a public network, such as the Internet, your CN2600 will need a valid public IP address,

which can be leased from a local ISP.

Configuration Options

Terminal Server Search Utility

-IP

You may configure your CN2600 with the bundled NPort Search Utility for Windows. Please refer to Chapter 9

Software Installation/Configuration, for details on how to install and use Terminal Server Search Utility.

Web Console

You may configure your CN2600 using a standard web browser. Please refer to Chapter 5, Configuration with

the Web console, for details on how to access and use the CN2600 web console.

LCM Console/Front Panel

The CN2600 only gives you the option to configure some settings through the front panel, also known as the

LCM (Liquid Crystal Module) console. The LCM console can be configured for read-only or writeable access.

Read-only access allows settings to be viewed but not changed. Factory default settings are for writeable

access, where configuration is allowed through the LCM console.

CN2600 Series Initial IP Address Configuration

3-3

ATTENTION

If a password has been enabled for the CN2600 console and the LCM console is configured for writeable status,

the LCM console will require you to enter the password before allowing you access. The password will not be

required if the LCM console is configured for read

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ATTENTION

In order to use the ARP setup method, both your computer and the CN2600 must be connected to the same

LAN. Alternatively, you may use a cross-over Ethernet cable to connect the CN2600 directly to your computer’s

Ethernet card. Before executing the ARP command, your CN2600 must be configured with the factory default

IP address (192.168.127.254) and your computer and the CN2600 must be on the same subnet.

-only access.

The MENU button activates the main menu. It is also used to cancel a selection and return to a previous menu.

The UP and DOWN buttons navigate between available options.

The SEL button confirms a selection or enters a submenu.

The IP environment (Static, DHCP, PPPoE, etc.) is configured under Main Menu  Network setting 

IP config. The IP address is configured under Main Menu

address has been entered, you will need to restart the CN2600 under Main Menu

The following instructions explain how to set the CN2600’s IP address through the LCM console:

1. Press MENU to activate the Main Menu.

2. The first line of the display indicates the current menu and should read Main Menu. The second line

indicates the current selection and should read Server setting. Use the UP and DOWN buttons to select

Network setting. Press SEL to enter the Network setting menu.

3. In the Network setting menu, select IP config. Don’t forget to press SEL to confirm your selection.

4. In the IP config menu, use the UP and DOWN buttons to select the option that matches your IP

environment (static, DHCP, etc.). Press SEL to confirm your choice. You may also press MENU to cancel

your selection and return to the previous submenu.

5. You should be back in the Network setting menu. From the Network setting menu, select IP address.

6. Use the UP and DOWN buttons to modify the digit currently selected by the blinking cursor. Press SEL to

move to the next digit. Continue modifying the IP address until all digits have been entered. If you make a

mistake, press MENU to cancel all changes and return to the Network setting menu. You cannot go back

one digit.

7. Once you have finished modifying the IP address, your changes are saved but not in effect. In order for your

changes to take effect, you will need to restart the CN2600. You may view and modify your changes by

selecting IP address at the Network setting menu again.

8. Press the menu button to exit out of the Network setting menu and return to the Main Menu. Use the UP

and DOWN buttons to select Save/Restart and press SEL. Use the UP and DOWN buttons to select Yes

and press SEL to restart.

Network setting  IP address. After the

Save/Restart.

ARP

You may use the ARP (Address Resolution Protocol) command to set up an IP address for your CN2600. The

ARP command tells your computer to associate the CN2600’s MAC address with an IP address. Afterwards, use

Telnet to access the CN2600 and its IP address will be reconfigured.

To use ARP to configure the IP address, complete the following:

9. Obtain a valid IP address for your CN2600 from your network administrator.

10. Obtain your CN2600’s MAC address from the label on the bottom panel.

CN2600 Series Initial IP Address Configuration

3-4

ATTENTION

Figures in this section were taken from the CN2600’s Telnet console.

11. Execute the arp -s command from your computer’s MS-DOS prompt as follows:

arp -s <IP address> <MAC address>

For example,

C:\> arp -s 192.168.200.100 00-90-E8-04-00-11

12. Next, execute a special Telnet command by entering the following exactly:

telnet 192.168.200.100 6000

When you enter this command, a Connect failed message will appear, as shown below.

13. After the CN2600 reboots, its IP address will assigned to the new address and you can reconnect using

Telnet to verify that the update was successful.

Telnet Console

Depending on how your computer and network are configured, you may find it convenient to use network

access to set up your CN2600’s IP address. This can be done using Telnet.

1. From the Windows desktop, select Start  Run, and then type telnet 192.168.127.254 in the Run

window (for LAN 1) or telnet 192.168.126.254 (for LAN 2).

If your IP address is different from the default setting, use your IP address instead. Click OK.

2. The console terminal type selection is displayed as shown. Enter 1 for ansi/vt100 and press ENTER to

continue.

3. Press N or use the arrow keys to select Network, and then press ENTER.

CN2600 Series Initial IP Address Configuration

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4. Press B or use the arrow keys to select Basic, and then press ENTER.

5. Use the arrow keys to move the cursor to IP address. Use the DELETE, BACKSPACE, or SPACE keys to

erase the current IP address, and then type in the new IP address and press ENTER. Note that if you are

using a dynamic IP configuration (BOOTP, SHCP, etc.), you will need to go to the IP configuration field

and press ENTER to select the appropriate configuration.

6. Press ESC twice to return to the previous page. Press Y to confirm the modification.

7. Press ESC to return to the previous page.

CN2600 Series Initial IP Address Configuration

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8. Press A or use the arrow keys to select Save and then press ENTER. Press ENTER again to confirm the

save command.

9. Press R or use the arrow keys to select Restart and then press ENTER.

10. Press S or use the arrow keys to select System and then press ENTER to restart the CN2600.

CN2600 Series Initial IP Address Configuration

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Serial Console

The CN2600 supports configuration through the serial console, which is the same as the Telnet console but

accessed through the RS-232 console port rather than through the network. Once you have entered the serial

console, the configuration options and instructions are the same as if you were using the Telnet console.

The following instructions and screenshots show how to enter the serial console using PComm Terminal

Emulator, which is available free of charge as part of the PComm Lite suite. You may use a different terminal

emulator utility, although your actual screens and procedures may vary slightly from the following instructions.

1. Use a serial cable to connect the CN2600’s serial console port to your computer’s male RS-232 serial port.

2. From the Windows desktop select Start  All Programs  PComm Lite  Terminal Emulator.

3. The PComm Terminal Emulator window should appear. From the Port Manager menu, select Open, or

simply click the Open icon as shown below:

4. The Property window opens automatically. Select the Communication Parameter tab, and then select

the appropriate COM port for the connection (COM1 in this example). Configure the baudrate for either

460800, 230400, 115200, 57600, 38400, 19200, or 9600, and then press OK.

5. From the Property window’s Terminal page, select ANSI or VT100 for Terminal Type and click OK.

6. Press <Enter> key to bring out the console screen. If the CN2600 has been set up for password protection,

you will be prompted to enter the password. After you enter the password, or if password protection was not

enabled, you will be prompted to select the terminal mode. Press 1 for ansi/vt100 and then press ENTER.

CN2600 Series Initial IP Address Configuration

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7. The main menu should come up. Once you are in the console, you may configure the IP address through the

Network menu item, just as with the Telnet console. Please refer to steps 4 to 11 in the Telnet Console

section to complete the initial IP configuration.

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4. Serial Port Operation Modes

In this chapter, we describe the various operation modes of the CN2600. CN2600 modes are grouped by type

of application, such as Device Control or Reverse Terminal. The options include an operation mode that relies

on a driver installed on the host computer, and operation modes that rely on TCP/IP socket programming

concepts. After selecting the proper operation mode, please refer to Chapter 5, Configuration with the Web

Console, for detailed information on configuration parameters.

The following topics are covered in this chapter:

Overview

Device Control Applications

 Real COM Mode

 RFC2217 Mode

Socket Applications

 TCP Server Mode

 TCP Client Mode

 UDP Mode

Redundant COM

Dual-host Redundant Data Acquisition System (DRDAS)

Terminal Applications

 Terminal ASCII Mode

 Terminal BIN Mode

Reverse Terminal Applications

 Reverse Telnet

Dial In/Out Modes

Disabled Mode

CN2600 Series Serial Port Operation Modes

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The CN2600 comes bundled with Real COM drivers for

Windows 98/ME/NT/ 2000/XP/2003/Vista systems and TTY

drivers for Linux systems.

In Real COM mode, the bundled drivers are able to establish a

transparent connection between a host and a serial device by

mapping the serial port on the CN2600 to a local COM/TTY

port on the host computer. Real COM mode supports up to 8

simultaneous connections that

simultaneously collect data from the same serial device.

Overview

The CN2600 network-enables traditional serial (RS-232/422/485) devices. The serial device server is a

special-purpose computer equipped with a CPU and TCP/IP protocols that can bi-directionally translate data

between the serial and Ethernet formats. Your own computer will be able to access, manage, and configure

remote facilities and equipment over the Internet from anywhere in the world.

Traditional SCADA and data collection systems rely on serial ports to collect data from various kinds of

instruments. Since the CN2600 network-enables instruments equipped with an RS-232, RS-422, or RS-485

communication port, your SCADA and data collection system will be able to access all instruments connected

to a standard TCP/IP network, regardless of whether the devices are used locally or at a remote site.

The CN2600 is an external IP-based network device that allows you to expand the number of serial ports for a

host computer on demand. As long as your host computer supports the TCP/IP protocol, you will not be limited

by the host computer’s bus limitation (such as ISA or PCI), nor will you be limited by the absence of drivers for

various operating systems.

In addition to providing socket access, the CN2600 also comes with a Real COM/TTY driver that transmits all

serial signals intact. This enables you to preserve your existing COM/TTY-based software without needing to

invest in additional software.

Three different socket modes are available: TCP Server, TCP Client, and UDP Server/Client. 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 faster delivery. UDP also allows unicast or multi-unicast of data to one IP or groups of IP addresses.

The CN2600 also supports console management applications, including Reverse Telnet modes. Reverse

terminal modes enable you to connect to a server’s console port through an IP network for remote control

and/or monitoring of that server.

Device Control Applications

For device control applications, the CN2600 offers the following modes: Real COM and RFC2217 mode.

Real COM Mode

enable multiple hosts to

One of the major conveniences of using Real COM mode is that it allows you to use software that was written

for pure serial communication applications. The Real COM driver intercepts data sent to the host’s COM port,

packs it into a TCP/IP packet, then redirects it through the host’s Ethernet card. At the other end of the

connection, the CN2600 accepts the Ethernet frame, unpacks the TCP/IP packet, and then transparently sends

the data through the serial port to the attached serial device.

CN2600 Series Serial Port Operation Modes

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ATTENTION

Real COM mode allows several hosts to have access control over the same CN2600. The drivers that come with

your CN2600 control host access by checking the host’s IP address. Please refer to the Accessible IP List section

in Chapter 8,

In TCP Server mode, the serial port on the CN2600 is assigned

a port number which must not conflict with any other serial

port on the CN2600. The host computer initiates contact with

the CN2600, establishes the connection, and receives data

from the serial device. This operation mode also supports up

to 8 simultaneous connections, enabling multiple hosts to

collect data from the

As illustrated in the figure, data transmission proceeds as

follows:

The host requests a connection from the CN2600, which is

configured for TCP Server mode.

Once the connection is established, data can be transmitted in

both directions between the host and the CN2600.

In TCP Client mode, the CN2600 can actively establish a TCP

connection to a pre

arrives.

After the data has been transferred, the CN2600 can

automatically disconnect from the host computer by using the

Inactivity time settings.

As illustrated in the figure, data transmission proceeds as

follows:

The CN2600, configured for TCP Client mode, req

connection from the host.

Once the connection is established, data can be transmitted in

both directions between the host and the CN2600.

System Management Settings, for more details.

RFC2217 Mode

RFC-2217 mode is similar to Real COM mode. That is, a driver is used to establish a transparent connection

between a host computer and a serial device by mapping the serial port on the CN2600 to a local COM port on

the host computer. RFC2217 defines general COM port control options based on the Telnet protocol. Third party

drivers supporting RFC-2217 are widely available on the Internet and can be used to implement Virtual COM

mapping to your CN2600 serial port(s).

Socket Applications

For socket applications, the CN2600 offers the following modes: TCP Server, TCP Client and UDP.

TCP Server Mode

same serial device at the same time.

TCP Client Mode

-defined host computer when serial data

uests a

CN2600 Series Serial Port Operation Modes

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Compared to TCP communication, UDP is faster and more

efficient. In UDP mode, you can unicast or m

unicast data

from a serial device to one or multiple host computers and the

serial device can receive data from one or multiple host

computers. These traits make UDP mode especially suited for

message display applications.

ATTENTION

If either LAN gets disconnected, it will take at least 1 minute for the LAN to recover after reconnecting.

If both LANs get disconnected, you will

transmit properly.

UDP Mode

ulti-

Redundant COM

The Redundant COM operation mode can be used to set up a redundant LAN between the serial devices

connected to the CN2600’s serial ports and the host computer. The redundant structure involves using the

CN2600’s two LAN ports to set up two independent LANs that connect the CN2600 to the host computer. If

either of the two LANs fails, the other LAN will continue transmitting packets between the serial devices and the

host, with the packets passing through the CN2600. In fact, one of the biggest advantages of the CN2600’s

Redundant COM mode is that the “switching time” is zero.

need to re-open your application software’s COM port for data to

CN2600 Series Serial Port Operation Modes

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NOTE

The RS

RS

connectors on the two CN2600 terminal servers will also need to use converters, such as the Moxa TCC-100I.

In this way, users can take advantage of RS

CN2600.

Dual-host Redundant Data Acquisition System (DRDAS)

The DRDAS operation mode provides a highly redundant network structure that takes advantage of the

CN2600’s dual LAN ports, dual IP addresses, and dual MAC addresses. DRDAS uses a backup PC that is set up

to take over when the primary PC fails.

The CN2600’s dual-host redundant configuration sends serial data to 4 IP addresses on the network. Users

select a Primary IP and 3 Secondary IPs. When the Primary IP fails, the backup IPs take over by using the

DRDAS library.

The DRDAS library is used to configure the DRDAS of the CN series. You must use the DRDAS library to

designate the primary and secondary hosts. If you need this library, please contact [e-mail]

With this kind of redundant setup, if one of the secondary IPs tries to send commands to the serial device, the

commands are discarded by the CN2600, since only the Primary IP is allowed to conduct bi-directional

transmission. The backup IPs are only allowed to receive data from the CN2600.

-232 connector on the Remote Terminal Unit (RTU) shown above must be set up with an RS-232 to

-422/485 converter, such as the Moxa TCC-100I, to convert RS-232 signals to RS-485 signals. The

-485’s multi-drop feature to share data with the secondary

CN2600 Series Serial Port Operation Modes

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Terminal Applications

Terminal applications involve connecting terminals to UNIX or Windows servers over a network. A terminal

connects to the appropriately configured serial port the CN2600, and the CN2600 transmits information to and

from a UNIX or Windows server over the network through its Ethernet port. You may need to check with your

network administrator to determine the appropriate terminal mode. All terminal modes support fast keys as

used in many terminal applications.

Please refer to Chapter 4, Introducing Serial Port Operation Modes, for detailed information and configuration

instructions.

Terminal ASCII Mode

Terminal ASCII mode can handle up to 8 sessions per port with the ability to switch between sessions on the

same terminal. This mode is used for text-based terminals with no file transfer capability or encryption.

Terminal BIN Mode

Terminal BIN mode allows one session per port and is used for terminal applications that include file transfer

features.

CN2600 Series Serial Port Operation Modes

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Reverse Terminal Applications

Reverse terminal applications are similar to terminal applications in that they involve using the CN2600 to

manage the connection between a terminal and a server. The difference is that with reverse terminal

applications, the terminal is connected through the network and the server is connected through the serial port,

rather than the other way around. In practice, a reverse terminal session typically involves a network

administrator telnetting to a device that has a dedicated serial console port used specifically for configuration

purposes.

For example, many routers, switches, UPS units, and other devices (including the CN2600) have Console/AUX

or COM ports to which a terminal can be physically connected for console management. With the CN2600, the

device’s console port can be connected to a serial port on the CN2600, allowing a network administrator to

telnet to the device remotely through the network. Although modern network equipment generally allows other

options for remote configuration through the network, there are situations in which it is necessary or desirable

to configure a device by serial console (e.g., for security reasons, when using older-generation equipment, or

as a backup configuration method when the network is down).

CN2600 reverse terminal modes allow the use of the CN2600 User Table or a RADIUS server for identity

verification purposes. Please refer to the Misc. Network Settings section in Chapter 8, System Management

Settings, for instructions on setting up the CN2600 User Table.

Reverse Telnet

Reverse Telnet mode is widely used for device management in telecommunication control rooms. The system

waits for a host on the network to initiate a connection. Since TCP Server mode does not assist with conversion

of CR/LF commands, reverse terminal applications that require this conversion should use Reverse Telnet

mode.

CN2600 Series Serial Port Operation Modes

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Dial In/Out Modes

The CN2600 provides dial-in/dial-out access for ISPs and enterprises that need a remote access solution. When

a user at a remote site uses a PPP dial-up connection to access the CN2600, the CN2600 plays the role of a

dial-up server, but also ensures that the user has legal access to the network by verifying the user’s identity

with the CN2600 User Table or a RADIUS server. Please refer to the Misc. Network Settings section in Chapter

8, System Management Settings, for instructions on setting up the CN2600 User Table.

The CN2600 supports PPP, SLIP, and Terminal modes for dial-in/dial-out access. Regardless of which operating

system is used, you will always be able to use standard PPP dial-up to establish a connection. The CN2600 can

also act as a router to connect serial ports to a WAN connection. Routing protocols (including static, RIP I, and

RIP II) can be adjusted to route different WAN connections.

Please refer to Chapter 5, Configuration with Web Console, for detailed information and configuration

instructions.

Disabled Mode

You can disable any port on the CN2600 by setting the operation mode to Disabled.

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5. Configuration with the Web Console

The web console is the most user-friendly method available to configure the CN2600. With a standard web

browser, you have easy and intuitive access to all settings and options. In this chapter, we introduce the web

console and go through the basic configuration options. The same configuration options are also available

through the Telnet and serial console.

The following topics are covered in this chapter:

Using Your Web Browser

 Browser Cookie Settings

 Trusted Site Settings

 Opening the Web Console

Web Console Navigation

Basic Settings

 Server Settings

 Time Settings

Network Settings

 Basic Network Settings

 Advanced Network Settings

 Configuring the Route Table