Digi PortServer CM Bedienungsanleitung

90000252_B

PortServer CM

User Manual

i-ii

The Digi logo is a trademark of Digi International Inc. All other brand and product names are the trademarks

of their respective holders.

Information in this document is subject to change without notice and does not represent a commitment on

the part of Digi International. Digi provides this document “as is,” without warranty of any kind, either

expressed or implied, including, but not limited to, the implied warranties of fitness or merchantability for a

particular purpose. Digi may make improvements and/or changes in this manual or in the product(s) and/or

the program(s) described in this manual at any time.

This product could include technical inaccuracies or typographical errors. Changes are periodically made to

the information herein; these changes may be incorporated in new editions of the publication.

FCC Warning Statement:

The PortServer CM has been tested and found to comply with the limits for Class A digital devices, pursuant

to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful inter-

ference when the equipment is operated in a commercial environment. This equipment generates, uses and

can radiate radio frequency energy and, if not installed and used in accordance with the Installation Manual,

may cause harmful interference to radio communications. Operation of this equipment in a residential area is

likely to cause harmful interference in which case the user is required to correct the problem at his or her

own expense.

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Canadian DOC Notice:

The PortServer CM does not exceed the Class A limits for radio noise emissions from digital apparatus set

out in the Radio Interference Regulations of the Canadian Department of Communications.

Le PortServer CM n’émete pas de bruits radioélectriques dépassant les limites applicables aux appareils

numériques de la classe A prescrites dans le règlement sur le brouillage radioélectrique edicté par le Min-

istère des Communications du Canada.

Contents

Chapter 1 Introduction

How To Use This Manual................................................................................................ 1-2

Safety Instructions ........................................................................................................... 1-2

Working Inside the PortServer CM ................................................................................. 1-3

What Is In the Box........................................................................................................... 1-4

LED Information.............................................................................................................. 1-5

Summary of the Configuration Process........................................................................... 1-6

Chapter 2 Configuring the PortServer CM

Discover Utility................................................................................................................ 2-2

Disabling the Discover Utility......................................................................................... 2-3

Configuration Options ..................................................................................................... 2-4

Configuring Terminal Parameters.................................................................................... 2-4

Configuring System Files ................................................................................................ 2-5

Configuration File Parameters......................................................................................... 2-6

Modifying Pslave.conf Global Parameters...................................................................... 2-7

Modifying Port Parameter Files....................................................................................... 2-9

Testing the Configuration.............................................................................................. 2-16

Updating the System Files............................................................................................. 2-17

Clustering PortServer CM Devices................................................................................ 2-18

Modifying Master/Slave Configuration Files................................................................ 2-19

Setting Serial Port Buffer Size....................................................................................... 2-24

Chapter 3 Menus and Keyword Monitoring Filters

Using digi_menu to simplify port connections................................................................ 3-2

About Menus.................................................................................................................... 3-4

Constructing Menus......................................................................................................... 3-7

Sample Menus................................................................................................................ 3-12

Keyword Monitoring and Notification System ............................................................. 3-16

XML Basics................................................................................................................... 3-24

Chapter 4 Linux Basics

Introduction...................................................................................................................... 4-2

Changing the root Password............................................................................................ 4-2

Users and Passwords........................................................................................................ 4-4

Linux File Structure......................................................................................................... 4-5

Basic File Manipulation Commands................................................................................ 4-5

The vi Editor.................................................................................................................... 4-7

The Routing Table........................................................................................................... 4-8

ssh - The Secure Shell Session ........................................................................................ 4-9

iii

The Process Table.......................................................................................................... 4-11

NTP Client Functionality............................................................................................... 4-11

The Crond Utility........................................................................................................... 4-12

The DHCP (Dynamic Host Configuration Protocol) Client..........................................4-13

Packet Filtering using ipchains...................................................................................... 4-14

Chapter 5 Hardware Specifications

Introduction...................................................................................................................... 5-2

The RS-232 Standard....................................................................................................... 5-2

Cable Length.................................................................................................................... 5-3

Connectors .......................................................................................................................5-3

Straight-Through vs. Crossover Cables........................................................................... 5-4

Which Cable Should be Used.......................................................................................... 5-5

Cable Diagrams................................................................................................................ 5-6

Chapter 6 Sample pslave.conf files

Sample pslave.conf File................................................................................................... 6-2

Customization................................................................................................................ 6-20

Chapter 7 The Web Management Interface

Introduction...................................................................................................................... 7-2

Changing the Password.................................................................................................... 7-4

Web Configuration Menus............................................................................................... 7-6

Troubleshooting the Web Management Interface............................................................ 7-9

Chapter 8 Upgrading and Troubleshooting

Upgrading the Linux Kernel............................................................................................ 8-2

Troubleshooting the PortServer CM................................................................................ 8-3

Hardware Test.................................................................................................................. 8-5

Port Conversation ............................................................................................................ 8-6

Test Signals Manually ..................................................................................................... 8-7

Introduction 1-1

Chapter 1 Introduction

How To Use This Manual ............................................................................................... 1-2

Safety Instructions .......................................................................................................... 1-2

Working Inside the PortServer CM ................................................................................ 1-3

What Is In the Box .......................................................................................................... 1-4

LED Information ............................................................................................................. 1-5

Summary of the Configuration Process .......................................................................... 1-6

1-2 How To Use This Manual

How To Use This Manual

This manual assumes that the reader understands networking basics and is familiar with the terms and

concepts used in Local and Wide Area Networking. The PortServer CM is a Linux-based secure console

access server, which gives it great flexibility. It runs an embedded version of the Linux operating system and

UNIX and Linux users will find the configuration process very familiar. On the other hand, users not

familiar with UNIX will have a steeper learning curve, but it is not necessary to be a UNIX expert.

Configuration of the equipment is done by editing a few plain-text files (commented sample files for the

principal profiles are provided in appendix C), and then updating the versions of the files in the PortServer

CM. The files can be edited in the PortServer CM using the vi editor provided, or in another computer with

the environment and text editor of your choice. UNIX user or not, we strongly recommend that you follow

the steps in this installation manual before jumping in. This manual should be read in the order written, with

exceptions given in the text.

Safety Instructions

Use the following safety guidelines to protect yourself and your PortServer CM.

CAUTION: Do not operate your PortServer CM with the cover removed.

•In order to avoid shorting out your PortServer CM when disconnecting the network cable, first unplug

the cable from the equipment and then from the network jack. When reconnecting a network cable to the

equipment, first plug the cable into the network jack, and then into the equipment.

•To help prevent electric shock, plug the PortServer CM into properly grounded power source. The cable

is equipped with 3-prong plug to help ensure proper grounding. Do not use adapter plugs or remove the

grounding prong from the cable. If you have to use an extension cable, use a 3-wire cable with properly

grounded plugs.

•To help protect the PortServer CM from transients in electrical power, use a surge suppressor, line condi-

tioner, or uninterruptible power supply.

•Be sure that nothing rests on PortServer CM’ cables and that the cables are not located where they can be

Introduction 1-3

stepped on or tripped over.

•Do not spill food or liquids on your PortServer CM. If it gets wet, contact Digi Technical Support.

•Do not push any objects into the openings of your PortServer CM. Doing so can cause fire or electric

shock by shorting out interior components.

•Keep your PortServer CM away from heat sources. Also, do not block cooling vents.

Working Inside the PortServer CM

NOTICE: Do not attempt to service the PortServer CM yourself, except following the instructions from

Digi Technical Support personnel. In such a case, first perform the following actions:

•Turn off the PortServer CM.

•Ground yourself by touching an unpainted metal surface at the back of the equipment before touching

anything inside your equipment.

Replacing the Battery

A coin-cell battery maintains date and time information. If you have to repeatedly reset time and date

information after turning on your PortServer CM, replace the battery.

CAUTION: A new battery can explode if it is incorrectly installed. Replace the 3 Volt CR2032 battery

only with the same or equivalent type recommended by the battery manufacturer. Discard used

batteries according to the battery manufacturer’s instructions.

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