Lantronix 10 manual

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Bom manual de uso

As regras impõem ao revendedor a obrigação de fornecer ao comprador o manual com o produto Lantronix 10. A falta de manual ou informações incorretas fornecidas ao consumidor são a base de uma queixa por não conformidade do produto com o contrato. De acordo com a lei, pode anexar o manual em uma outra forma de que em papel, o que é frequentemente utilizado, anexando uma forma gráfica ou manual electrónicoLantronix 10 vídeos instrutivos para os usuários. A condição é uma forma legível e compreensível.

O que é a instrução?

A palavra vem do latim "Instructio" ou instruir. Portanto, no manual Lantronix 10 você pode encontrar uma descrição das fases do processo. O objetivo do manual é instruir, facilitar o arranque, a utilização do equipamento ou a execução de determinadas tarefas. O manual é uma coleção de informações sobre o objeto / serviço, um guia.

Infelizmente, pequenos usuários tomam o tempo para ler o manual Lantronix 10, e um bom manual não só permite conhecer uma série de funcionalidades adicionais do dispositivo, mas evita a formação da maioria das falhas.

Então, o que deve conter o manual perfeito?

Primeiro, o manual Lantronix 10 deve conte:
- dados técnicos do dispositivo Lantronix 10
- nome do fabricante e ano de fabricação do dispositivo Lantronix 10
- instruções de utilização, regulação e manutenção do dispositivo Lantronix 10
- sinais de segurança e certificados que comprovam a conformidade com as normas pertinentes

Por que você não ler manuais?

Normalmente, isso é devido à falta de tempo e à certeza quanto à funcionalidade específica do dispositivo adquirido. Infelizmente, a mesma ligação e o arranque Lantronix 10 não são suficientes. O manual contém uma série de orientações sobre funcionalidades específicas, a segurança, os métodos de manutenção (mesmo sobre produtos que devem ser usados), possíveis defeitos Lantronix 10 e formas de resolver problemas comuns durante o uso. No final, no manual podemos encontrar as coordenadas do serviço Lantronix na ausência da eficácia das soluções propostas. Atualmente, muito apreciados são manuais na forma de animações interessantes e vídeos de instrução que de uma forma melhor do que o o folheto falam ao usuário. Este tipo de manual é a chance que o usuário percorrer todo o vídeo instrutivo, sem ignorar especificações e descrições técnicas complicadas Lantronix 10, como para a versão papel.

Por que ler manuais?

Primeiro de tudo, contem a resposta sobre a construção, as possibilidades do dispositivo Lantronix 10, uso dos acessórios individuais e uma gama de informações para desfrutar plenamente todos os recursos e facilidades.

Após a compra bem sucedida de um equipamento / dispositivo, é bom ter um momento para se familiarizar com cada parte do manual Lantronix 10. Atualmente, são cuidadosamente preparados e traduzidos para sejam não só compreensíveis para os usuários, mas para cumprir a sua função básica de informação

Índice do manual

  • Página 1

    UDS-10 User Guide Revision D 07/15/02 Part Number 900-207[...]

  • Página 2

    Copyright and Trademark © 2000, Lantronix. All rights reserved. No part of the contents of this book may be transmitted or reproduced in any form or by any means without the written permission of Lantronix. Printed in the United States of America. Ethernet is a trademark of XEROX Corporation. UNIX is a registered trademark of The Open Group. Windo[...]

  • Página 3

    Disclaimer and Revisions Operation of this equipment in a residential area is likely to cause interference in which case the user, at his or her own expense, will be required to take whatever measures ma y be required to correct the interference. Attention: This product has been designed to comply with the limits for a Class A digital device pursua[...]

  • Página 4

    Declaration of Conformity (according to ISO/IEC Guide 22 and BS 7514) Manufacturer’s Name & Address: Lantronix, 15353 Barranca Parkway, Irvi ne, CA 92618 USA Declares that the following product: Product Name Model: UDS-10 Universal Device Server Conforms to the following standards or other normative documents: Safety: EN60950:1992+A1, A2, A3,[...]

  • Página 5

    Warranty Lantronix warrants each Lantronix product to be free from defects in material and workmanship for a period of FIVE YEARS (or for the period specified on the product warranty registration card) after the date of sh ipment. During this period, if a customer is unable to resolve a product problem with Lantronix Technical Support, a Return Mat[...]

  • Página 6

    Sales Offices The Americas 15353 Barranca Parkway Irvine, CA 92618, USA Phone: (949) 450-7227 Fax: (949) 450-7231 sales@lantronix.com France 2 Rue Hélène Boucher 78280 Guyancourt France Tel: +33 1 39 30 41 74 Fax: +33 1 39 30 41 73 europesud@lantronix.com Germany Karlstrasse 49 78054 VS-Schwenningen Germany Tel: +49 (0)77 20 30 1620 Fax: +49 (0)7[...]

  • Página 7

    Contents UDS-10 User Guide i Table of Contents 1. Introduction ...................................................................................................................... 1-1 1.1 UDS-10 ............................................................................................................... 1-2 1.2 UDS-10B .........................[...]

  • Página 8

    Contents ii UDS-10 User Guide 2.4.4 Add the Unit to the Manage List ........................................................ 2-8 2.4.5 Opening a Configuration Window.................................................... 2-10 2.5 ARP and Telnet................................................................................................. 2-11 2.6 Se[...]

  • Página 9

    Contents UDS-10 User Guide iii 3.8.2 SNMP Community Name ................................................................. 3-25 3.8.3 Disable Telnet Setup ......................................................................... 3-26 3.8.4 Disable TFTP Firmware Upgrade ..................................................... 3-26 3.8.5 Disable Port 77[...]

  • Página 10

    Contents iv UDS-10 User Guide 8.3.2 Interface Mode .................................................................................... 8-9 8.3.3 Baud Rate ......................................................................................... 8-10 8.3.4 Flow Control ................................................................................[...]

  • Página 11

    Contents UDS-10 User Guide v List of Figures Figure 1 – UDS-10-IAP ......................................................................................................... 1 -4 Figure 2 - RJ-45 Connector .................................................................................................... 1 -8 Figure 3 – UDS-10 Connected to Seri[...]

  • Página 12

    Contents vi UDS-10 User Guide List of Tables Table 1 - Ethernet Interface Signals....................................................................................... 1-8 Table 2 - UDS-10 LED Functions ...................................................................................... 1-10 Table 3 - Technical Specs ............................[...]

  • Página 13

    Contents UDS-10 User Guide vii Table 38 - Disconnect Mode Options..................................................................................... 9-5 Table 39 - Flush Mode Options.............................................................................................. 9-7 Table 40 - Interface Mode Options .................................[...]

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    [...]

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    Introduction UDS-10 User Guide 1-1 1. Introduction This manual describes the family of Universal Device Servers (UDS), including the UDS-10 Device Server and the UDS-10-IAP Device Server with Industrial Automation Protocols. The UDS-10B Embedded Device Server is shown here fo r reference only. It is part of the UDS-10 family but is described in the[...]

  • Página 16

    Introduction 1-2 UDS-10 User Guide 1.1 UDS-10 The UDS-10 Device Server connects serial devices to Ethernet networks using the IP protocol family (TCP for connection-oriented stream applications and UDP for datagram applications). A few of the different typ es of serial devices supported are listed below: • Time/Attendance Clocks and Terminals •[...]

  • Página 17

    Introduction UDS-10 User Guide 1-3 1.2 UDS-10B Note: This section is for the UDS-10B only. The UDS-10B is the embedded version of the UDS-10, and is designed to be easily and quickly integrated into products. The UDS-10B operates the same as the UDS-10, except the UDS-10B has no external metal case. Serial interface is accomplished via a fema le DB[...]

  • Página 18

    Introduction 1-4 UDS-10 User Guide 1.3 UDS-10-IAP Device Server Note: This section is for the UDS-10-IAP only. The Lantronix Industrial Automation Platform (IAP) fam ily of Device Servers allows a single network and protocol to connect multiple ser ial devices from m any vendors. IAP provides the automation industry with a network-enabling solution[...]

  • Página 19

    Introduction UDS-10 User Guide 1-5 A few examples of attached devices are: • PLCs • AC/DC drives • CNC systems • Operator panels and message displays • Process Controls • Instrumentation • Power monitoring equipment • Scales and weighing systems • Barcode scanners • Label printers • Most factory floor serial devices 1.3.1 Indu[...]

  • Página 20

    Introduction 1-6 UDS-10 User Guide 1.4 Network Protocols Note: UDS-10 refers to UDS-10, UDS- 10-IAP and UDS-10B except where noted. The UDS-10 uses TCP/IP protocols for netw ork communication. The supported standards are: ARP, UDP, TCP, ICMP, Telnet, TFTP, DHCP, AutoIP, and SNMP. For transparent connections, TCP/IP (binary stream) or Telnet protoco[...]

  • Página 21

    Introduction UDS-10 User Guide 1-7 1.5 Serial Interface UDS-10 has a female DCE DB-25 serial por t that supports RS232 and RS485/422 serial standards (firmware selectable) up to 115.2 Kbps. LEDs DB- 25 Se ri al Po r t DB-25F RS- 232/ 485 TX (inp ut) RX (output) RTS (inp ut) CTS (o utput ) DS R ( o utpu t ) TX + (o ut ) TX- (o ut) DTR (input) RX- (i[...]

  • Página 22

    Introduction 1-8 UDS-10 User Guide 1.7 Ethernet Cable The next drawing shows a typical RJ-45 connector . The color is not standard but very typical of an Ethernet Patch cable. Pin 1 is located at the top of the connector (Orange + White). The view is from the end of the connector. Oran g e + W hit e Oran g e Gree n + Wh it e Blue Blue + Whi te Gree[...]

  • Página 23

    Introduction UDS-10 User Guide 1-9 1.8 Serial Interface Connection The UDS-10 can be connected to a serial or Ethernet device for setup and configuration. The serial device can be RS-232 or RS-485/422. The following diagram shows a typical interface cable for the RS-232 Serial interface. The UDS-M-SBC is an optional male DB-25 to RS-485 screw block[...]

  • Página 24

    Introduction 1-10 UDS-10 User Guide 1.9 LEDs The device contains the following LEDs: link net T x/Rx colli sion diagnos tic statu s Table 2 - UDS-10 LED Functions LED Meaning L (Green) Lights solid green to indicate network port is connected to the network. Net Tx/Rx (Yellow) Blinks yellow to indicate network packets are transmitting and receiving.[...]

  • Página 25

    Introduction UDS-10 User Guide 1-11 1.10 Dimensions The UDS-10 dimensions are shown in the following drawing. Note: For UDS-10 and UDS-10-IAP. 2.3 cm (0 .9 in) 6.4cm (2.5 in) 9 cm (3 .5 in) 1.11 Product Information Label The product information label contains important inform ation about your specific unit. Serial Number S/N:24 47938 UDS-10B 00-20 [...]

  • Página 26

    Introduction 1-12 UDS-10 User Guide 1.13 Power Requirements The UDS-10 is shipped with a 12VDC, 1A power supply, but any DC power supply between 9VDC and 30VDC can be used. You can order the UDS-10 with a 110VAC (UDS-10-01) or 230VAC (UDS-10-02) power supply. Note: The input voltage for all UDS-10 products has been changed from 6-9VDC to 9- 30VDC. [...]

  • Página 27

    Introduction UDS-10 User Guide 1-13 1.15 Technical Specifications Table 3 - Technical Specs Category Description CPU, Memory AMD 188ES CPU, 25MHz clock, 128kByte RAM Flash, EPROM 512kByte Flash PROM Installable Serial Protocols Standard Tunnel (UDS-10, and UDS-10-IAP), Modbus (UDS-10- IAP), DF1 (UDS-10-IAP) Serial Interface Female DB-25 connector ([...]

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  • Página 29

    Getting Started UDS-10 User Guide 2-1 2. Getting Started This section describes all the procedures for configuring your unit. For a short version, see the Quick Start Guide. Go to the Lantronix web site for the latest firmware and release notes. UDS-10 comes with Standard Tunnel Protocol and the UDS-10-IAP comes with the IAP Standard Tunnel Protoco[...]

  • Página 30

    Getting Started 2-2 UDS-10 User Guide 2.1.3 Port Number Every TCP connection and every UDP datagram is defined by a destination IP address and a port number. For example, a Telnet application com monly uses port number 23. A port number is similar to an extension on a PBX system. The unit 's serial channel (port) can be associat ed with a spec[...]

  • Página 31

    Getting Started UDS-10 User Guide 2-3 2.3 Methods of Assigning the IP Address The unit's IP address must be configured before a network connection is available. You have the following options for assigning an IP to your unit: Method Description DHCP A DHCP server automatically assigns the IP address and network settings. See DHCP on page 2-4. [...]

  • Página 32

    Getting Started 2-4 UDS-10 User Guide 2.3.1 DHCP The unit ships with a default IP address of 0. 0.0.0, which automatically enables DHCP. Provided a DHCP server exists on the network, it will assign the unit an IP address, gateway address, and subnet mask when the unit boots up. The DR1 has acquired an IP address if the red LED stops flashing and th[...]

  • Página 33

    Getting Started UDS-10 User Guide 2-5 AutoIP can be disabled by setting the unit’s IP address to 0.0.1.0. This setting enables DHCP but disables AutoIP. 2.4 DeviceInstaller You can manually assign the IP address using DeviceInstaller software, which is found on the product CD. If you want to use a serial connec tion instead of an Ethernet connect[...]

  • Página 34

    Getting Started 2-6 UDS-10 User Guide 2.4.2 Assign IP Address and Network Class Click the Start button on the Task Bar and select Programs  Device Installer  Device Installer . The Device Installer window displays. Figure 5 - DeviceInstaller Window 1. Click the IP icon . The Assign IP Address window displays. Figure 6 - Assign IP Addr[...]

  • Página 35

    Getting Started UDS-10 User Guide 2-7 3. In the Enter IP Address to assign field, enter the unit’s IP address in XXX.XXX.XXX.XXX format. 4. In the PC Network Class section, select th e class (subnet mask). (Most users select Class C). 5. Click the Set IP Address button. (IP is assigned, pinged, and tested) 6. Confirm that the “Assign IP success[...]

  • Página 36

    Getting Started 2-8 UDS-10 User Guide 2.4.4 Add the Unit to the Manage List Now add the unit to the list of similar Lantronix devices on the network so that you can manage and configure it. 1. Click the Search the network for devices icon. The Search Network window displays. Figure 8 - Search Network Window 2. Select the PC Network Class. Class C i[...]

  • Página 37

    Getting Started UDS-10 User Guide 2-9 6. Click the Back button to return to the DeviceInstaller window. The DeviceInstaller window now lists all of the devices in the group, including the unit you are setting up. The hardware address and firmware release number for the unit display. Figure 9 - Devices in a Group Now you can manage (configure) the u[...]

  • Página 38

    Getting Started 2-10 UDS-10 User Guide 2.4.5 Opening a Conf iguration Window 1. Click the Manage icon . The Device Management window displays. Figure 10 - Device Management Window 2. Do one of the following: Note: To assign Expert settings and Security setti ngs, you must use the Setup Mode window in a Telnet session. • To configure the unit via [...]

  • Página 39

    Getting Started UDS-10 User Guide 2-11 2.5 ARP and Telnet The unit’s IP address must be configured before a network connection is available. You are able to ARP an address into a CoBox/UDS device even if there is already an address in the unit. If the unit has no IP address, you can use Address Resolution Protocol (ARP) method from UNIX and Windo[...]

  • Página 40

    Getting Started 2-12 UDS-10 User Guide 2.6 Serial Port Login If you want to initially configure the unit through a serial connection, follow these steps: 1. Connect a console terminal or PC running a terminal em ulation program to your unit's serial port. The default serial port settings ar e 9600 baud, 8 bits, no parity, 1 stop bit, no flow c[...]

  • Página 41

    Configure UDS-10 User Guide 3-1 3. Configuring the Unit You must configure the unit so that it can communicate on a network with your serial device. For example, you must set the way the unit will respond to serial and network traffic, how it will handle serial packets, and when to start or close a connection. You can configure your unit locally or[...]

  • Página 42

    Configure 3-2 UDS-10 User Guide 3.2 Using DeviceInstaller DeviceInstaller is a powerful software utility for configuring device servers from a network connection. This section uses the utility to dem onstrate the various methods of configuring a device. The Device Management window is a comm on page for gaining access to different menus. 1. Start D[...]

  • Página 43

    Configure UDS-10 User Guide 3-3 6. For Telnet configuration, click the Telnet to Device icon. A small Telnet to Device window appears, showing the IP Address and the Port address. The main Lantronix Universal Device Server window opens. Go to Using a Telnet Connection on page 3-10 for a summary of the me nu selections. 7. To Get device configuratio[...]

  • Página 44

    Configure 3-4 UDS-10 User Guide 3.3 Web Manager Page Note: The UDS-10-IAP may not have a web page or may use a different format web page. You can start a web browser for configurati on by opening your JAVA enabled web browser and entering the IP address or by clicking the Web Configuration button on the Device Management window. The Lantronix We b [...]

  • Página 45

    Configure UDS-10 User Guide 3-5 3.3.1 Unit Configuration Click the Unit Configuration button to display the following dialog box. This page contains the Server Configuration and the Port Confi guration settings. These are static settings read from the device. Note: The following screen shots represent the we b page shown when the device is loaded w[...]

  • Página 46

    Configure 3-6 UDS-10 User Guide 3.3.2 Server Properties You can change the server properties by editing any of the fields. Lingering over one of the fields will display operator messages. Changing the IP address will require you to enter the new IP address in the browser to reload the page. Figure 12 - Server Properties Configuration on the Web Bro[...]

  • Página 47

    Configure UDS-10 User Guide 3-7 3.3.3 Port Properties Serial Protocol: RS232, RS422/485 4-wire, RS485 2-wire Speed: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 Character Size: 8, 7 Parity: None, Even, Odd Stop Bit: 1,2 Flow Control: None, XON/XOFF, XON/XOFF Pass Characters to Host, CTS/RTS (Hardware) UDP Datagram Mode: Enable, Disable UDP D[...]

  • Página 48

    Configure 3-8 UDS-10 User Guide On Active Connection: Enable, Disable On Passive Connection: Enable, Disable At Time of Disconnect: Enable, Disable Packing Algorithm: Enable, Disable Idle Time: Force transmit 12 m s, Force transmit 52 ms, Force Transm it 250 ms, Force Transmit 5000 ms Trailing Characters: None, One, Two Send Immediate After Sendcha[...]

  • Página 49

    Configure UDS-10 User Guide 3-9 Disconnect Mode: with DTR Drop, Ignore DTR Check for CTRL-D to Disconnect: Enable, Disable Port Password: Enable, Disable Telnet Mode: Enable, Disable Inactivity Timeout: Enable, Disable Inactivity Timer: (User Selectable) Port Password: (User Selectable. Port Password must be enabled) 3.3.4 Technical Support Several[...]

  • Página 50

    Configure 3-10 UDS-10 User Guide 3.4 Configuring via the Setup Mode Window 3.4.1 Using a Telnet Connection To configure the unit over the network, establish a Telnet connection to port 9999. Note: If you use the Telnet to Device icon on the Device Installer Device Management window OR a serial port login to establish the connection, skip steps 1and[...]

  • Página 51

    Configure UDS-10 User Guide 3-11 *** basic parameters Hardware: Ethernet Autodetect IP addr – 0.0.0.0/DHCP/BOOTP/AutoIP, no gateway set DHCP device name : not set ***************** Security ***************** SNMP is enabled (not IAP firmware) SNMP Community Name: (not IAP firmware) Telnet Setup is enabled TFPT Download is enabled Port 77Feh is en[...]

  • Página 52

    Configure 3-12 UDS-10 User Guide 3.4.2 Using the Serial Port If you want to initially configure the unit through a serial connection, follow these steps: 8. Connect a console terminal or PC running a terminal em ulation program to your unit's serial port. The default serial port settings ar e 9600 baud, 8 bits, no parity, 1 stop bit, no flow c[...]

  • Página 53

    Configure UDS-10 User Guide 3-13 3.5.3 Netmask: Number of Bits for Host Part A netmask defines the number of bits taken fro m the IP address that are assigned for the host section. Note: Class A: 24 bits; Class B: 16 bits; Class C: 8 bits. The unit prompts for the number of host bits to be entered, then calculates the netmask, which is displayed in[...]

  • Página 54

    Configure 3-14 UDS-10 User Guide 3.5.4 Change Telnet c onfiguration password Setting the Telnet configuration password prevents unauthorized access of the setup menu via a Telnet connection to port 9999 or via Web pages. The password is limited to 4 characters. An enhanced password setting of 16 characters is available under Security Settings for T[...]

  • Página 55

    Configure UDS-10 User Guide 3-15 3.6 Channel 1 Configuration (Serial Port Parameters) Using this option, define how the serial port will respond to network and serial communications . Baudrate (9600) I/F Mode (4C) Flow (00) Port No (10001) ConnectMode (C0) Remote IP Address : (000).(000).(000).(000) Remote Port (00000) DisConnMode (00) FlushMode (0[...]

  • Página 56

    Configure 3-16 UDS-10 User Guide The following table demonstrates how to build some com mon Interface Mode settings: Table 7 - Common Interface Mode Settings Common I/F Mode Setting Binary Hex RS-232C, 8-bit, No Parity, 1 stop bit (1) 0100 1100 4C RS-232C, 7-bit, Even Parity, 1 stop bit (1) 0111 1000 78 RS-485 2-Wire, 8-bit, No Parity, 1 stop bit ([...]

  • Página 57

    Configure UDS-10 User Guide 3-17 3.6.3 Flow Flow control sets the local handshake method for stopping serial input/output. Table 8 - Flow Control Options Flow Control Option Hex No flow control 00 XON/XOFF flow control 01 Hardware handshake with RTS/CTS lines 02 XON/XOFF pass characters to host 05 3.6.4 Port Number The setting represents the source[...]

  • Página 58

    Configure 3-18 UDS-10 User Guide 3.6.5 Connect Mode Connect Mode defines how the unit makes a connection, and how it reacts to incoming connections over the network. Enter Connect Mode options in hexadecimal notation. Note: See Table 35 - Binary to Hexadecimal Conversion Table. Table 9 - Connect Mode Options Connect Mode Option 7 6 5 4 3 2 1 0 Inco[...]

  • Página 59

    Configure UDS-10 User Guide 3-19 Table 10 - Manual Connection Address Example Command String Result if remote IP is 129.1.2.3 and remote port is 1234 C121.2.4.5/1 Complete override; connection is started with host 121.2.4.5, port 1 C5 Connect to 129.1.2.5, port 1234 C28.10/12 Connect to 129.1.28.10, port 12 Autostart (Automatic Connection): If auto[...]

  • Página 60

    Configure 3-20 UDS-10 User Guide Table 11 - Modem Mode Commands Modem Mode Command Function ATDTx.x.x.x,pppp or ATDTx.x.x.x/pppp Makes a connection to an IP address (x.x.x.x) and a remote port number (pppp). ATDTx.x.x.x Makes a connection to an IP address (x.x.x.x) and the remote port number defined within the unit. ATD0.0.0.0 Forces the unit into [...]

  • Página 61

    Configure UDS-10 User Guide 3-21 3.6.6 Remote IP Address This is the destination IP address used with an outgoing connection. 3.6.7 Remote Port The remote TCP port number must be set for the unit to make outgoing connections. This parameter defines the port number on the target host to which a connection is attem pted. Note: To connect an ASCII ter[...]

  • Página 62

    Configure 3-22 UDS-10 User Guide 3.6.9 Flush Mode (Buffer Flushing) Using this parameter, you can control line handling and network bu ffers with connection startup and disconnect. You can also select between two different packing algorithms. Note: See Table 35 - Binary to Hexadecimal Conversion Table. Table 13 - Flush Mode Options Function 7 6 5 4[...]

  • Página 63

    Configure UDS-10 User Guide 3-23 3.6.10 Pack Control Two firmware-selectable packing algorithms de fine how and when packets are sent to the network. The standard algorithm is optimized for applications in which the unit is used in a local environment, allowing for very small de lays for single characters while keeping the packet count low. The alt[...]

  • Página 64

    Configure 3-24 UDS-10 User Guide Send Characters: If 2-Byte Send Character Sequence is enabled, the unit interprets the sendchars as a 2-byte sequence; if not set , they are interpreted independently. If Send Immediately After Characters is not set, any characters already in the serial buffer are included in the transmission after a "transmit&[...]

  • Página 65

    Configure UDS-10 User Guide 3-25 3.7 Expert Settings Note: You can change these settings via Telnet or serial connections only, not on the Web- Manager. Note: The Expert Settings option does not appear with UDS-10-IAP. These parameters should only be changed if you are an expert and definitely know the consequences the changes might have. TCP Keepa[...]

  • Página 66

    Configure 3-26 UDS-10 User Guide 3.8.3 Disable Telnet Setup This setting defaults to the N (No) opti on. The Y (Yes) option disables access to this Configuration Menu by Telnet (port 9999). It only allows access via the Web pages and the serial port of the unit. 3.8.4 Disable TFTP Firmware Upgrade This setting defaults to the N (No) option. The Y ([...]

  • Página 67

    Configure UDS-10 User Guide 3-27 3.10 Exit Configuration Mode Select 8 to exit the configuration mode without saving any changes or rebooting. Select 9 to save all changes and reboot the device. All values are stored in nonvolatile memory. 3.11 Get Configuration The device configuration information is stored in flash mem ory and can be read and sav[...]

  • Página 68

    Configure 3-28 UDS-10 User Guide 3.12 Set Configuration Device configuration information can be saved in a file and later used to set the configuration of one or several devices. To set the configuration of a device from a saved file, click the Set Configuration button on the Device Management window. The following dialog appears. The Device IP Add[...]

  • Página 69

    Firmware UDS-10 User Guide 4-1 4. Updating Protocol (Firmware) 4.1 Protocol Firmware You can update the unit's internal operational code to a newer revision, or change the code to operate with a specific vendor. The UDS-10-IAP was designed to allow loading of vendor specific protocol firmware. This firmware takes the place of the IAP Standard [...]

  • Página 70

    Firmware 4-2 UDS-10 User Guide 4.2.1 Via DeviceInstaller After downloading the firmware to your computer, or locating the file on your software CD, you can use DeviceInstaller to install it. 1. Download the updated firmware files from www.lantronix.com or ftp.lantronix.com and store them in a subfolder on your computer. 2. Click the Start button on[...]

  • Página 71

    Firmware UDS-10 User Guide 4-3 3. Click the Search the network for devices icon . The Search Network window displays. Figure 15 - Search Network Window 4. Click the Start Search button. A list of all active units on the local network displays. 5. Click the Save button. A confirmation message displays. 6. Click O K . 7. Click the Back button to retu[...]

  • Página 72

    Firmware 4-4 UDS-10 User Guide 8. Select the desired unit and click the Upgrade Firmware file (.ROM) icon . The Upgrade Firmware window displays. Figure 17 - Upgrade Firmware 9. In the Existing Firmware list box, select the firmware type that is currently in the unit. This selection must match the Firm ware file type currently installed or an error[...]

  • Página 73

    Firmware UDS-10 User Guide 4-5 4. In the Destination File field, enter the current internal operational code or WEB5 for the internal Web interface. (For UDS-10-IAP, AQ = Standard Tunnel, AM = Modbus, AD = DF1. For UDS-10, 3Q = Standard Tunnel) 5. In the Remote Host field, enter the IP address of the unit being upgraded. 6. Click the Put button to [...]

  • Página 74

    Firmware 4-6 UDS-10 User Guide 4.2.4 Via the Serial Port The following procedure is for using the HyperT erminal software application. In some cases, the HEX format file is available on the software CD and on the Web site. Before you can load firmware through the seria l port you need to convert the ROM code to HEX format. There is a DOS applicatio[...]

  • Página 75

    Firmware UDS-10 User Guide 5-1 5. DeviceComm Manager Lantronix DeviceComm Manager is a Windows b ased COM port redirector software utility. Its function is to redirect customer applicati on data destined for a local serial (COM) port to the PC’s network port. Rather than going out the local serial port, the data is transmitted across the Ethernet[...]

  • Página 76

    Firmware 5-2 UDS-10 User Guide 5.1 Installing DeviceComm Manager The DeviceComm Manager software is include d on the product CD or it can be downloaded from the Lantronix web site. 5.1.1 Install DeviceComm Manager 1. Insert the product CD into your CD-ROM drive. The CD will automatically start and display the main window. If the CD does not launch [...]

  • Página 77

    Firmware UDS-10 User Guide 5-3 5.1.2 Setup 1. Open Control Panel. 2. Double click on the “DeviceComm Manager” Icon . Status Meaning DISABLED Unused port on your system N/A Port being used by other hardw are / software on y our system IDLE An IP address and port number have been associated with the COM port CONNECTED An active TCP/IP connection [...]

  • Página 78

    Firmware 5-4 UDS-10 User Guide 6. Enter the Port number of the target device server in the “Port:” section. Click OK when done. ****Please Note:**** Because this is a raw mode redirector: a. On UDS and CoBox products, you cannot use ports 14000 through 14009. b. On MSS, ETS, LRS, and SCS products DO use the 3001, 3002, 3003, etc. ports. Note: Y[...]

  • Página 79

    Troubleshooting UDS-10 User Guide 6-1 6. Troubleshooting 6.1 Technical Support This chapter discusses how you can diagnose and fi x errors quickly without having to contact a dealer or Lantronix. It helps to connect a terminal to the serial port while diagnosing an error to view summ ary messages that may be displayed. When troubles hooting, always[...]

  • Página 80

    Troubleshooting 6-2 UDS-10 User Guide When you report a problem, please provide the following information: • Your name, and your company name, address, and phone num ber • Lantronix model number • Lantronix serial number • Software version (on the first screen shown when you Telnet to port 9999) • Description of the problem • Debug repo[...]

  • Página 81

    Troubleshooting UDS-10 User Guide 6-3 Table 16 - Problems and Error Messages Problem/Message Reason Solution When you issue the ARP – S command in Windows, “The ARP entry addition failed: 5" message displays. Your currently logged-in user does not have the correct rights to use this command on this PC. Have someone from your IT department [...]

  • Página 82

    Troubleshooting 6-4 UDS-10 User Guide Problem/Message Reason Solution No LEDs are lit. The unit or its power supply is damaged. Change power supplies. The UDS/CoBox will not pow er up properly, and the LEDs are flashing. Various Consult the LEDs section in the Introduction chapter or the Quick Start for the LED flashing sequence patterns. Call Lant[...]

  • Página 83

    Troubleshooting UDS-10 User Guide 6-5 Problem/Message Reason Solution The UDS/CoBox appears to be set up correctly, but you are not communicating with y our device attached to the UDS/CoBox across the network. If you are sure that the serial port setting is correct, then you may not be connecting to the correct socket of the UDS/CoBox. Another poss[...]

  • Página 84

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  • Página 85

    Monitor Mode UDS-10 User Guide 7-1 7. Monitor Mode 7.1 Monitor Mode Monitor Mode is a command-line interface used for diagnostic purposes (see Table 17 - Monitor Mode Commands ). There are two ways to enter Monitor Mode: locally via the serial port or remotely via the network. 7.1.1 Entering Monitor Mode Via the Serial Port To enter Monitor Mode lo[...]

  • Página 86

    Monitor Mode 7-2 UDS-10 User Guide Table 17 - Monitor Mode Commands Command Command Name Function DL Download Download firmware to the Device Server via the serial port in hex format SF x.x.x.x Send Firmware Send firmware to Device Server with IP address x.x.x.x VS x.x.x.x Version Query softwar e header record (16 bytes) of Device Server with IP ad[...]

  • Página 87

    UDP UDS-10 User Guide 8-1 8. Network Configuration using UDP 8.1 UDP Datagrams The Device Server can also be configured or queried over the network using UDP datagrams. The Device Server has a UDP listener set for port 30718 (77FE Hex). Responses from the Device Server are returned to th e source port of the UDP packet. The first three bytes of the[...]

  • Página 88

    UDP 8-2 UDS-10 User Guide Byte Command Parameters Notes be set to the string IP-SETUP (Hex 49 50 2D 53 45 54 55 50). Next 2 bytes have to be set to 00. Next 2 bytes must contain the serial number. Next 4 bytes have to be the new IP address. because the serial number is unique. It provides one method to set the IP address of the Device Server if is [...]

  • Página 89

    UDP UDS-10 User Guide 8-3 8.2 Configuring Multiple Devices When configuring a number of Device Servers identically, it is useful to create a template setup record. The setup record can then be sent to the “target” Device Servers from a “master” Device Server via “cut and paste” or UDP (see Network Configuration using UDP on page 8-1). D[...]

  • Página 90

    UDP 8-4 UDS-10 User Guide To request the setup record of a properly configured Device Server via another Device Server on the network: 5. Make sure that both units ar e plugged onto the network properly. 6. Enter Monitor Mode (with network support enabled) on the unit that is not properly configured. (see Monitor Mode on page 7-1) 7. Issue the comm[...]

  • Página 91

    UDP UDS-10 User Guide 8-5 To send a setup record via Monitor Mode: 1. Configure a “master” Device Server with the desired parameters and place it on the network. 2. Place another Device Server (the “target”) on the network. 3. Enter Monitor Mode (with network support enabled) on the master Device Server (see Monitor Mode on page 7-1) 4. At [...]

  • Página 92

    UDP 8-6 UDS-10 User Guide To get and set the node configuration, 120 by tes should be exchanged at once in 32-Byte records. The IP address in the record (bytes 0 to 3) will be ignored (unless the UDP FD command is being used). 8.2.4 Calculating the Checksum As mentioned in Table 20 - Block Types above, the last two characters of an Intel Hex setup [...]

  • Página 93

    UDP UDS-10 User Guide 8-7 8.3 Setup Records A setup record consists of 120 bytes. They are transmitted at once from and to the node. Unused bytes should be initialized as 00. Table 21 - Setup Record Construction defines the structure of a setup record: Table 21 - Setup Record Construction Byte(s) Function 00-03 IP address of the unit (x.x.x.x) 04 R[...]

  • Página 94

    UDP 8-8 UDS-10 User Guide 8.3.1 Channel Parameters Use the following table to select setup record parameters for Channels 1: Table 22 - Channel Parameters Byte(s) (Channel 1) Function 16 Interface Mode (see Table 23 - Interface Mode Options ) 17 Line Speed Bits 7-5: Reserved Bits 4-0: Baud Rate (see Table 25 - Baud Rate Settings ) 18 Flow Control ([...]

  • Página 95

    UDP UDS-10 User Guide 8-9 8.3.2 Interface Mode The Interface (I/F) Mode is a bit-coded byte entered in hexadecimal notation. Use the following table to select Interface Mode settings: Table 23 - Interface Mode Options I/F Mode Option 7 6 5 4 3 2 1 0 RS-232C (1) 0 0 RS-422/485 (1) 0 1 RS-485 2-wire (1) 1 1 7 Bit 1 0 8 Bit 1 1 N o P a r i t y 0 0 Eve[...]

  • Página 96

    UDP 8-10 UDS-10 User Guide 8.3.3 Baud Rate The Device Server and attached serial device mu st agree on a speed or baud rate to use for the serial connection. Use the following table to select Baud Rate settings: Table 25 - Baud Rate Settings Speed (bps) Hex 38400 00 19200 01 9600 02 4800 03 2400 04 1200 05 600 06 300 07 115200 08 57600 09 8.3.4 Flo[...]

  • Página 97

    UDP UDS-10 User Guide 8-11 8.3.5 Connect Mode Connect Mode defines how the Device Server makes a connection, and how it reacts to incoming connections over the network. Use the following table to select Connect Mode options: Table 27 - Connect Mode Options Connect Mode Option 7 6 5 4 3 2 1 0 Incoming Connection Never accept incoming 0 0 0 Accept in[...]

  • Página 98

    UDP 8-12 UDS-10 User Guide 8.3.6 Disconnect Mode In Disconnect Mode, DTR drop either drops th e connection or is ignored. Use the following table to select Disconnect Mode Options: Table 28 - Disconnect Mode Options Disconnect Mode Option 7 6 5 4 3 2 1 0 Disconnect with DTR drop (6) 1 Ignore DTR 0 Telnet mode and terminal type setup (1) 1 Channel ([...]

  • Página 99

    UDP UDS-10 User Guide 8-13 8.3.7 Flush Mode (Buffer Flushing) Using this parameter, you can control line handling and network bu ffers with connection startup and disconnect. You can also select between two different packing algorithms. Use the following table to select Flush Mode options: Table 29 - Flush Mode Options Function 7 6 5 4 3 2 1 0 Inpu[...]

  • Página 100

    UDP 8-14 UDS-10 User Guide 8.4 IP Addresses Each TCP/IP node on a network host has a unique IP address. This address provides the information needed to forward packets on the local network and across multiple networks if necessary. IP addresses are specified as x.x.x.x , where each x is a number from 1 to 254; for exam ple, 192.0.1.99. The Device S[...]

  • Página 101

    UDP UDS-10 User Guide 8-15 A router is required between all networks a nd all sub-networks. Ge nerally, hosts can send packets directly only to hosts on their own s ub-network. All packets destined for other subnets are sent to a router on the local network. 8.4.3 Host Portion The host portion of the IP address is a unique number assigned to identi[...]

  • Página 102

    UDP 8-16 UDS-10 User Guide Table 34 - Netmask Examples Netmask Host Bits 255.255.255.252 2 255.255.255.248 3 255.255.255.240 4 255.255.255.224 5 255.255.255.192 6 255.255.255.128 7 255.255.255.0 8 255.255.254.0 9 255.255.252.0 10 255.255.248.0 11 ... ... 255.128.0.0 23 255.0.0.0 24 8.4.6 Private IP Networks and the Internet If your network is not a[...]

  • Página 103

    Binary to Hex UDS-10 User Guide 9-1 9. Binary to Hex Conversion Many of the Device Server’s configuration procedures require you to assemble a series of options (represented as bits) into a complete comma nd (represented as a byte). The resulting binary value must be converted to a hexadecimal representation. Hexadecimal digits have values rangin[...]

  • Página 104

    Binary to Hex 9-2 UDS-10 User Guide 9.1 Connect Mode Options Note: Character response codes are C=conn, D=disconn, N=unreachable Table 36 - Connect Mode Options Accept Incoming Connections Serial Response Upon Connection Activ e Connection Startup Hostlist Hex Never None (quiet) No active startup N/A Never None (quiet) Any character 1 Never None (q[...]

  • Página 105

    Binary to Hex UDS-10 User Guide 9-3 Accept Incoming Connections Serial Response Upon Connection Activ e Connection Startup Hostlist Hex Unconditionally Character Any character D1 Unconditionally Character Active DTR D2 Unconditionally Character CR (0x0D) D3 Unconditionally Character Manual connection D4 Unconditionally Character Autostart D5 Uncond[...]

  • Página 106

    Binary to Hex 9-4 UDS-10 User Guide Accept Incoming Connections Serial Response Upon Connection Activ e Connection Startup Hostlist Hex Unconditionally Character An y character Hostlist F1 Unconditionally Character Active DTR Hostlist F2 Unconditionally Character CR (0x0D) Hostlist F3 Unconditionally Character M anual connection Hostlist N/A Uncond[...]

  • Página 107

    Binary to Hex UDS-10 User Guide 9-5 9.2 Disconnect Mode Options Table 38 - Disconnect Mode Options Disconnect with DTR Drop (Note) Telnet Mode and Terminal Type Setup Channel (port) Password Hard Disconnect State LED Off wi th Connection Disconnect with EOT (^D) Hex Enable 0 Enable Enable 10 Enable Enable 20 Enable Enable Enable 30 Enable Enable 40[...]

  • Página 108

    Binary to Hex 9-6 UDS-10 User Guide Disconnect with DTR Drop (Note) Telnet Mode and Terminal Type Setup Channel (port) Password Hard Disconnect State LED Off wi th Connection Disconnect with EOT (^D) Hex Enable Disable 48 Enable Enable Disable 58 Enable Disable Enable 68 Enable Enable Disable Enable 78 Enable Disable 88 Enable Enable Disable 98 Ena[...]

  • Página 109

    Binary to Hex UDS-10 User Guide 9-7 9.3 Flush Mode (Buffer Flushing) Options Table 39 - Flush Mode Options Serial to Netw ork Clear input buffer upon: Netw ork to Serial Clear output buffer upon: Alternate Packing A lgorithm Hex None 0 Active connection 10 Passive connection 20 Active connection Passive connection 30 Disconnect 40 Active connection[...]

  • Página 110

    Binary to Hex 9-8 UDS-10 User Guide Serial to Netw ork Clear input buffer upon: Netw ork to Serial Clear output buffer upon: Alternate Packing A lgorithm Hex Active connection Active connection Enable 91 Passive connection Active connection Enable A1 Active connection Passive connection Active connection Enable B1 Disconnect Active connec tion Enab[...]

  • Página 111

    Binary to Hex UDS-10 User Guide 9-9 Serial to Netw ork Clear input buffer upon: Netw ork to Serial Clear output buffer upon: Alternate Packing A lgorithm Hex Disconnect Active connection Passive connection 43 Active connection Disconnect Active connection Passive connection 53 Passive connection Disconnect Active connection Passive connection 63 Ac[...]

  • Página 112

    Binary to Hex 9-10 UDS-10 User Guide Serial to Netw ork Clear input buffer upon: Netw ork to Serial Clear output buffer upon: Alternate Packing A lgorithm Hex Active connection Disconnect Disconnect Enable D4 Passive connection Disconnect Disconnect Enable E4 Active connection Passive connection Disconnect Disconnect Enable F4 Active connection Dis[...]

  • Página 113

    Binary to Hex UDS-10 User Guide 9-11 Serial to Netw ork Clear input buffer upon: Netw ork to Serial Clear output buffer upon: Alternate Packing A lgorithm Hex Active connection Passive connection Passive connection Disconnect 36 Disconnect Passive connection Disconnect 46 Active connection Disconnect Passive connection Disconnect 56 Passive connect[...]

  • Página 114

    Binary to Hex 9-12 UDS-10 User Guide Serial to Netw ork Clear input buffer upon: Netw ork to Serial Clear output buffer upon: Alternate Packing A lgorithm Hex Passive connection Disconnect Active connection Passive connection Disconnect 67 Active connection Passive connection Disconnect Active connection Passive connection Disconnect 77 Active conn[...]

  • Página 115

    Binary to Hex UDS-10 User Guide 9-13 9.4 Interface Mode Options Table 40 - Interface Mode Options Interface Bits Parity Stop Bits Hex RS-232C 7 No 1 48 RS-232C 7 No 2 C8 RS-232C 7 Even 1 78 RS-232C 7 Even 2 F8 RS-232C 7 Odd 1 58 RS-232C 7 Odd 2 D8 RS-232C 8 No 1 4C RS-232C 8 No 2 CC RS-232C 8 Even 1 7C RS-232C 8 Even 2 FC RS-232C 8 Odd 1 5C RS-232C[...]

  • Página 116

    Binary to Hex 9-14 UDS-10 User Guide 9.5 Pack Control Options Table 41 - Pack Control Options Sendcharacter Defined by a: Trailing Characters Idle Time Force Transmit: Send Immediately after Sendcharacter Hex 1-Byte Sequence No 12ms 0 1-Byte Sequence No 52ms 1 1-Byte Sequence No 250ms 2 1-Byte Sequence No 5sec 3 1-Byte Sequence 1 12ms 4 1-Byte Sequ[...]

  • Página 117

    Binary to Hex UDS-10 User Guide 9-15 Sendcharacter Defined by a: Trailing Characters Idle Time Force Transmit: Send Immediately after Sendcharacter Hex 2-Byte Sequence No 250ms Yes 32 2-Byte Sequence No 5sec Yes 33 2-Byte Sequence 1 12ms Yes 34 2-Byte Sequence 1 52ms Yes 35 2-Byte Sequence 1 250ms Yes 36 2-Byte Sequence 1 5sec Yes 37 2-Byte Sequenc[...]

  • Página 118

    [...]

  • Página 119

    Binary to Hex UDS-10 User Guide 10-1 10. IP Addresses An IP address is a 32-bit value, divided into four octets of eight bits each. The standard representation is four decimal numbers (in the range of 0..255) divided by dots. 192.2.1.123 This is called decimal-dot notation. The IP address is divided in two parts: networ k and host. To support diffe[...]

  • Página 120

    Binary to Hex 10-2 UDS-10 User Guide 10.4 Network Address The host address with all host bits set to 0 is used to address the network as a whole (in routing entries, for example). 10.5 Broadcast Address The address with the host part bits set to 1 is the broadcast address, meaning for every station. Network and broadcast addresses must not be used [...]

  • Página 121

    Binary to Hex UDS-10 User Guide 10-3 10.7 Private IP Networks and the Internet If your network is not connected to the Internet, and there are no plans to make such a connection, you may use any IP address you wish. If your network is not connected to the Internet and you have plans to connect, or you are connected to the Internet and want to opera[...]

  • Página 122

    [...]

  • Página 123

    Glossary of Terms UDS-10 User Guide 11-1 11. Glossary of Terms Address space A linear array of locations that a thread can access. Simple processors have only one, and these processors are referred to as `linear' addressing. AutoIP AutoIP is an alternative to DHCP that allo ws hosts to automatically obtain an IP add ress in smaller networks th[...]

  • Página 124

    Glossary of Terms 11-2 UDS-10 User Guide Baseband LAN: A LAN that uses a single carrier frequency over a single channel. Ethernet , Token Ring and Arcnet LANs use baseband transmission. Baud: Unit of signal frequency in si gnals per second. Not synonym ous with bits per second si nce signals can represent more than one bit . Baud equals bits per se[...]

  • Página 125

    Glossary of Terms UDS-10 User Guide 11-3 Broadband: A data transmission technique allowing multiple high-speed sign als to share the bandwid th of a single cable via frequency divisio n multiplexing. Broadband Network: A network that uses multiple carrier frequ encies to transmit multiplexed signals on a single cable. Several networks may coexist o[...]

  • Página 126

    Glossary of Terms 11-4 UDS-10 User Guide Communication Server: A dedicated, standalone system that manages communications activities for other computers. Cut-through: Technique for examining i ncoming packets whereby an Et hernet switch looks only at the first few bytes of a packet before forwardi ng or filtering it. This process is faster than loo[...]

  • Página 127

    Glossary of Terms UDS-10 User Guide 11-5 Dialback: A security feature that ensures pe ople do not log into modem s that they shouldn't have access to. When a connection is requested, the system checks the user name for validity, then "dials back" the number associated with that user name. Distributed Processing: A system in which eac[...]

  • Página 128

    Glossary of Terms 11-6 UDS-10 User Guide Filtering: Process whereby an Ethernet switch or bridge reads the contents of a packet and then finds that the packet does not need to be forwarded, drops it. a f iltering rate is the rate at which a device can receive packets and drop them wit hout any loss of incom ing packets or delay in processing. Firmw[...]

  • Página 129

    Glossary of Terms UDS-10 User Guide 11-7 Heartbeat: Ethernet defined SQE signal q uality test function. Hertz (Hz): A frequency unit equal to one cycle per second. Host: Generally a node on a network that can be used inte ractively, i.e., logged int o, like a computer. Host Table: A list of TCP/IP hosts on the network along with their IP addresses.[...]

  • Página 130

    Glossary of Terms 11-8 UDS-10 User Guide IPX: Internetwork Packet eXchange, a NetWare prot ocol similar to IP (In ternet Prot ocol). ISDN: (Integrated Services Digit al Network): All di gital service provided by telephone com panies. Provides 144K bps over a single phone line (divided in t wo 64K bps "B" channels and one 16K bps "D&q[...]

  • Página 131

    Glossary of Terms UDS-10 User Guide 11-9 Layer: In networks, layers refer to soft ware protocol levels comprising the architecture, with each layer performing functi ons for the layers above it . Line Speed: Expressed in bps , the maximum rate at which data can reliably be transmitted over a lin e using given hardware. Local Network Interconnect (L[...]

  • Página 132

    Glossary of Terms 11-10 UDS-10 User Guide Modem: A modulator-dem odulator device for changing t ransmission si gnals from digi tal to analog for transmission over phone lines. Used in pairs, one is required at each end of the line. MOP: Maintenance Operations Prot ocol, a DEC protocol used for rem ote com municati ons between hosts and servers. Mul[...]

  • Página 133

    Glossary of Terms UDS-10 User Guide 11-11 NetBIOS/NetBEUI: Microsoft's net working protocols for it' s LAN Manager and Windows NT products. Network: An interconnected system of comput ers that can comm unicate with each other and share files, data and resources. Network Address: Every node on a network has one or more addresses associat e[...]

  • Página 134

    Glossary of Terms 11-12 UDS-10 User Guide PAP: (Password Authentication Protocol ) Authentication scheme for PPP li nks. A password can be specified for both devices on a remote link. Failure to auth enticate will result in a dr opped connection prior to start of data transmission. Physical Address: An address identifying a single node. Physical La[...]

  • Página 135

    Glossary of Terms UDS-10 User Guide 11-13 Protocol: Any standard met hod of comm unicating over a network. Remote Access: Access to network resources not located on the sam e physical Ethernet. (Physi cal Ethernet here refers to an entire site net work topology.) Remote Control: Form of remote access where a device dialing in assumes control of ano[...]

  • Página 136

    Glossary of Terms 11-14 UDS-10 User Guide Router: Device capable of filtering/forwarding packets ba sed upon data link layer information. Whereas a bridge or switch may only read MAC layer ad dresses to filter, routers are able to read data such as IP addresses and route accordingly. RTEL: Lantronix' "reverse Telnet" software al lows[...]

  • Página 137

    Glossary of Terms UDS-10 User Guide 11-15 Store and Forward: Technique for examining i ncoming packets on an Ethe rnet switch or bridge wh ereby the whole packet is read before forwarding or filtering takes place. St ore and forward is a sligh tly slower process than cut-through, but it does ensure that al l bad or misali gned packets are elim inat[...]

  • Página 138

    Glossary of Terms 11-16 UDS-10 User Guide Terminal Server: A concentrator that facilitates communication between h osts and terminals. Terminator: Used on both ends of a standard Ethernet or Thinwire Ethernet segment, this special connector provides the 50 ohm t erminati on re sistance needed for the cable. TFTP: Trivial File Transfer Prot ocol. On[...]

  • Página 139

    Glossary of Terms UDS-10 User Guide 11-17 Twisted-Pair Cable: Inexpensive, multiple-conductor cable comprised of one or more pairs of 18 to 24 gauge copper strands. The strands are twisted t o improve prot ection agai nst electrom agnetic and radio frequency interference. The cable, which may be either shielded or unshielded, is u sed in low-speed [...]