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Lantronix MSS100

1. Network Mode 4 18 Channel 4 18 WEP 4 18 Formatting an ATA Flash Card 4 18 Modem Cards 4 18 5 Using the MSS 5 18 Incoming Connections 5 18 Socket Connections 5 18 Interactive Connections 5 18 Outbound Connections 5 18 Session Control 5 18 Status Displays 5 18 Serial Tunnel 5 18 TCP Configuration 5 18 UDP Configuration 5 18 Multihost Mode 5 18 Enabling Multihost Mode 5 18 Adding Hosts 5 18 Removing Hosts 5 18 Modem Emulation Mode 5 18 Modem Mode Commands 5 18 Wiring Requirements 5 18 Sequential Hostlist Mode 5 18 COM Port Redirector 5 18 6 Troubleshooting 6 18 Power up Troubleshooting 6 18 DHCP Troubleshooting 6 18 BOOTP Troubleshooting 6 18 RARP Troubleshooting 6 18 TFTP Troubleshooting 6 18 Modem Configuration Checklist 6 18 Entering Commands at the Boot Prompt 6 18 Technical Support 6 18 7 Pinouts 7 18 Ethernet Connector 7 18 MSS VIA Connectors 7 18 PC Card Slot 7 18 Serial Connectors 7 18 MSS4 Connectors 7 18 Serial Connectors 7 18 MSS100 Connectors 7 18 DB25 Connector 7 18 Modem Wiring 7 18 8 Updating Software 8 18 Obtaining Software 8 18 Via the Web 8 18 Via FTP 8 18 Reloading Software 8 18 Reloading Sequence 8 18 Troubleshooting Flash ROM Updates 8 18 A Compliance and Warranty Information 8 18 Compliance Information 8 18 Warranty 8 18 vi 1 Introduction to the MSS Family The Lantronix MSS family of Dev
2. In the example the UDP host entry is actually a broadcast IP address Data is sent to all hosts on that particular subnet Removing Hosts To remove an entry from the host table use the Show Hostlist command to find out its entry number and then use the Host Delete command to delete it Figure 5 15 Removing Entries from the Host Table Local gt gt SHOW HOSTLIST 1 192 168 0 10 2 192 168 0 12 3 192 168 0 14 Local gt gt HOST DEL H T H T N Modem Emulation Mode In modem emulation mode the MSS presents a modem interface to the attached serial device it accepts AT style modem commands and handles the modem signals correctly Normally there is a modem connected to a PC and a modem connected to some other remote machine A user must dial from his PC to the remote machine and accumulate phone charges for each connection With the MSS in modem mode you can replace your modems with MSS device servers and use an Ethernet connection instead of a phone call all without having to change communications applications You can then connect to any remote machine that has an MSS without making potentially expensive phone calls Note If the MSS is in modem emulation mode and the serial port is idle the MSS can still accept network TCP connections to the serial port To use modem mode enable modem emulation and set your MSS for Autostart using A as the autostart character This triggers the
3. Disclaimer amp 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 may be required to correct the interference Attention This product has been designed to comply with the limits for a Class A digital device pursuant to Part 15 of FCC Rules These limits are designed to provide reasonable protection against such interference when operating in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this guide may cause harmful interference to radio communications Changes or modifications to this device not explicitly approved by Lantronix will void the user s authority to operate this device The information in this guide may change without notice The manufacturer assumes no responsibility for any errors that may appear in this guide Contents Copyright amp Trademark Disclaimer amp Revisions Contents iii 1 Introduction to the MSS Family 1 1 MSS Family Features 1 1 Protocols 1 2 Terms 1 3 About The Documentation 1 3 2 Installation 2 1 MSS VIA Installation 2 1 Components 2 1 Installation Procedure 2 3 MSS VIA Specifications 2 6 MSS4 Installation 2 7 MSS4 Components 2 7 Installation Procedure 2 8 MSS4 Specificati
4. Ensure that TFTP is enabled on the host several major UNIX vendors ship their systems with TFTP disabled by default The Ethernet circuit must have the service characteristic enabled Ensure that the MOM LOAD search path includes the directory containing the MSSVIAx SYS MSS4 SYS or MSS100 SYS file Ensure that the files were transferred in binary mode Ensure that your FTP client is set to do a binary transfer 8 3 MSS User Guide 8 Updating Software 8 4 A Compliance and Warranty Information Compliance Information According to ISO IEC Guide 22 and EN 45014 Manufacturer s Name amp Address Lantronix 15353 Barranca Parkway Irvine CA 92618 USA Declares that the following product Product Name amp Model Device Server MSS VIA MSS4 and MSS100 Conforms to the following standards or other normative documents Safety EN60950 1992 A1 A2 A3 A4 A11 Electromagnetic Emissions EN55022 1998 IEC CSPIR22 1993 FCC Part 15 Subpart B Class A IEC 1000 3 2 A14 2000 IEC 1000 3 3 1994 Electromagnetic Immunity EN55024 1998 Information Technology Equipment Immunity Characteristics IEC61000 4 2 1995 Electro Static Discharge Test IEC61000 4 3 1996 Radiated Immunity Field Test IEC61000 4 4 1995 Electrical Fast Transient Test IEC61000 4 5 1995 Power Supply Surge Test IEC61000 4 6 1996 Conducted Immunity Test IEC61000 4 8 1993 Magnetic Field Test IEC61000 4 11 1994
5. Glows green or yellow to indicate a wired Ethernet connection Off Not connected to a wired Ethernet network Green Connected to a 10BASE T network Yellow Connected to either a 1OOBASE T or 100BASE FX network Link Installation Procedure The MSS should be positioned close to the device it will be servicing Since powering down the unit will terminate any active sessions it may be desirable to place the device server in a location secure from user access Also be aware of the unit s environmental operating limits and cabling requirements The following diagram shows a properly installed MSS in an Ethernet network The numbers in the diagram refer to the installation steps in this section Figure 2 9 MSS Connected to a Serial Device and Network Category 5 F serial Ethernet Cable Device 9 to network 1 Connect the MSS to a serial device Note that all serial ports are initially configured for RS 232 networking a Connect one end of a serial cable to one of the MSS DB9 connectors See Chapter 7 Pinouts for MSS connector pinout information Note For the first connection you may want to connect a serial terminal to the console port designated as the first serial port This will allow you to verify that your device server is working and to configure the necessary network settings The console port is initially set for 9600 baud 8 data bits one stop bit no parity and no flow control b Connect th
6. RARP request Many operating systems do not start a RARP server at boot time Check the host s RARPD documentation for details or use the ps command to see if there is a RARPD process running TFTP Troubleshooting If the TFTP request fails even though you have configured your host to respond to the request check the areas discussed in the following table Is the filename correct gt 4 E lar licey a The name and case of the software download file must be correct The software file names are uppercase but can be renamed The server will look for uppercase names by default Table 6 5 TFTP Troubleshooting Ensure that the etc inetd conf file has an uncommented line enabling the TFTP daemon Machines may have the TFTP daemon line commented out If the etc inetd conf file has to Is TFTP be modified the TCP IP server process daemon has to be told of this via a signal Find the enabled on process ID PID of the inet daemon and then signal the process Normally the process is the loadhost signalled by sending it a HUP signal kill HUP nnnnn The etc inetd conf or letc netd conf file is re read whenever the UNIX host boots See the man pages man inetd for more information Modem Configuration Checklist Note Modem functions do not apply to RS 485 Most modem problems are caused by cabling mistakes or incorrect modem configuration However the following items should be verified after any mo
7. other than those specifically set out above or by any existing contract between the parties Any such contract states the entire obligation of Lantronix The contents of this document shall not become part of or modify any prior or existing agreement commitment or relationship For details on the Lantronix warranty replacement policy go to our web site at http www lantronix com support warranty index html
8. 4 Configuration The MSS can be told which hosts are the gateways for the local network If no gateway is specified the MSS will listen to network broadcasts from gateways to decide which hosts are acting as gateways The command below tells the MSS which host is the preferred gateway Figure 4 5 Specifying a Gateway for MSS VIA and MSS4 Local gt gt CHANGE SERVER GATEWAY 192 168 0 10 Figure 4 6 Specifying a Gateway Local gt gt CHANGE GATEWAY 192 168 0 10 Note A secondary gateway can also be configured in case the primary gateway is unavailable If you do not wish to configure a gateway specify 0 0 0 0 as the IP address in the above command See Change Server Gateway in the MSS Reference Manual for more information Name Server A TCP IP host generally has an alphanumeric host name such as Phred in addition to its IP address For this reason the MSS supports DNS Domain Name Service A DNS Server is a host that can translate text host names into the numeric addresses needed to make a connection To specify a DNS Server use the following command Figure 4 7 Configuring a Nameserver for MSS VIA and MSS4 Local gt gt CHANGE SERVER NAMESERVER 192 168 0 22 Figure 4 8 Configuring a Nameserver for MSS100 Local gt gt CHANGE NAMESERVER 192 168 0 22 A secondary nameserver can also be specified for use when the primary nameserver is unavailable See
9. Change Server Nameserver in the MSS Reference Manual for more information Note If the MSS cannot resolve a text host name use the numeric IP address The MSS also allows you to set a default domain name to be appended to any host name for the purpose of name resolution When a user types a host name the MSS will add this domain name and attempt the connection Name checking applies to any MSS commands that require text name resolution such as Telnet Rlogin and Ping To set the default domain enter the Change Server Domain command followed by the desired domain name in quotes Figure 4 9 Configuring the Default Domain for MSS VIA and MSS4 Local gt gt CHANGE SERVER DOMAIN xyzcorp com Figure 4 10 Configuring the Default Domain for MSS100 Local gt gt CHANGE DOMAIN xyzcorp com Note Some nameservers will not resolve host names that do not have a domain at the end 4 3 MSS User Guide 4 Configuration IP Security IP security allows the system administrator to restrict incoming and outgoing TCP IP sessions and access to the serial port Connections are allowed or denied based upon the source IP address for incoming connections or the destination IP address for outgoing connections IP security information can be added to the IP local host table To add an entry specify an IP address and whether to allow Enabled or deny Disabled connections For example the command below disables outgoing connecti
10. Ethernet MSS4 pe Device Server Personal Computer PC POS Device sam A V Device Ethernet Serial Variable Speed Drive Programmable Logic Controller PLC The following diagram shows a properly installed MSS The numbers in the diagram refer to the installation steps in this section 2 12 MSS User Guide 2 Installation Figure 2 13 MSS Connected to Serial Device and Ethernet Device 1 Select a location The MSS should be positioned close to the device it will be servicing Since powering down the unit will terminate any active sessions it may be desirable to place the device server in a location secure from user access Also be aware of the unit s environmental operating limits and cabling requirements 2 Connect the MSS to an RS232 based serial device a Connect one end of a serial cable to the DB25 connector on the front of the MSS You may want to use a serial terminal for the first connection both to ensure that your device server is working and to configure the necessary network settings Note The serial port is initially set for 9600 baud 8 data bits one stop bit and no parity b Connect the other end of the cable to your serial device s serial port 3 Connect the MSS to the Ethernet a Connect one end of a Category 5 Ethernet cable to the Ethernet network via a switch or hub depending on network topology b Connect the other e
11. Once logged in the administrator can enter the Change Server IPaddress command to make the address permanent Figure 3 6 Changing the IP Address for MSS VIA and MSS4 telnet 192 168 0 10 Trying192 168 0 10 Lantronix Version n n n yymmdd Type Help at the Local gt prompt for assistance Enter Username gt gopher Local gt SET PRIVILEGED Password gt system not echoed Local gt gt CHANGE SERVER IPADDRESS 192 168 0 10 3 17 MSS User Guide 3 Getting Started Figure 3 7 Changing the IP Address for MSS100 telnet 192 168 0 10 Trying 192 168 0 10 Lantronix Version n n n yymmdd Type Help at the Local gt prompt for assistance Enter Username gt gopher Local gt SET PRIVILEGED Password gt system not echoed Local gt gt CHANGE IPADDRESS 192 168 0 10 Using a DHCP BOOTP or RARP Reply A host based DHCP BOOTP or RARP server can provide information for the MSS to use to configure an IP address when the unit boots See the host based man pages for configuration information Keep in mind that many BOOTP daemons will not reply to a BOOTP request if the download file name in the configuration file does not exist If this is the case create a file in the download path to get the BOOTP daemon to respond BOOTP and RARP are enabled by default on the MSS If you wish to disable them use the Change Server BOOTP Disabled and Change Server RARP Disabled command
12. Show RS485 Note This command is only valid on the MSS VIA and MSS4 This command shows the current settings for RS 485 serial connections including wire mode two wire or four wire termination and driving of the TX transmit signal Show Server Bootparams This command displays MSS identification and boot procedure information The first lines display the MSS version hardware address network name and node number identification string and how long the MSS has been running Software and ROM versions configured loadhosts and startup files are also displayed Show Server Characteristics This command displays network related server identification information including the MSS hardware address node address IP address domain any configured gateways and nameservers and the subnet mask In addition inactivity and retransmission limits password restrictions and the types of incoming logins permitted are shown Show Server Counters This command enables the system administrator to view quantitative information about send and receive errors It also displays error information for the Ethernet and TCP IP protocols that can be used to diagnose network transmission problems Show Sessions This command displays information about current sessions including each active port user and type of session Show Users This command displays the name port number and connection status of all current users or a specified user Serial
13. Voltage Dips amp Interrupts Test Supplementary Information This Class A digital apparatus complies with Canadian ICES 003 CSA and has been verified as being compliant within the Class A limits of the FCC Radio Frequency Device Rules FCC Title 47 Part 15 Subpart B CLASS A measured to CISPR 22 1993 limits and methods of measurement of Radio Disturbance Characteristics of Information Technology Equipment This product also complies with the requirements of the Low Voltage Directive 72 23 EEC and the EMC Directive 89 336 EEC Manufacturer s Contact Director of Quality Assurance Lantronix 15353 Barranca Parkway Irvine CA 92618 USA Tel 949 453 3990 Fax 949 453 3995 8 1 MSS User Guide A Compliance and Warranty Information Warranty Lantronix warrants each Lantronix product to be free from defects in material and workmanship for a period of ONE YEAR During this period if a customer is unable to resolve a product problem with Lantronix Technical Support a Return Material Authorization RMA will be issued Following receipt of a RMA number the customer shall return the product to Lantronix freight prepaid Upon verification of warranty Lantronix will at its option repair or replace the product and return it to the customer freight prepaid If the product is not under warranty the customer may have Lantronix repair the unit on a fee basis or return it No services are handled at the customer s site under this war
14. card slot In the United States the MSS functions without further configuration out of the box with its default 802 11 settings and settings can be changed as needed For other countries users must set the Region before 802 11 functionality will be available See 802 11 Region for more information This section assumes that you understand IEEE 802 11 concepts and architectures If you do not please refer to the IEEE 802 11 Standard or the documentation that came with your PC card or Access Point AP Note The MSS VIA does not support PC card hot swapping After inserting a PC card into the PC card slot reboot the MSS The following acronyms are used in this section 4 17 MSS User Guide 4 Configuration AP Access Point a device that relays communications between one or more wireless devices and possibly other devices on a network APs are usually connected to a physical network Note If using an AP and WEP is not enabled set the AP to accept Open System Authentication If WEP is enabled set the AP to Shared Key Authentication BSS Basic Service Set or Cell a group comprising one or more APs and their associated wireless devices Figure 4 67 Simple Wireless Network BSS ESS Extended Service Set a network consisting of two or more BSSs An ESS can contain multiple APs IBSS Independent Basic Service Set a BSS with no APs Devices work in an Ad Hoc networking mode Enabling 802 11 Networking To use t
15. command and one of the following parameters Telnet Enables Telnet logins None Disables Telnet logins For security reasons you may wish to disable incoming logins If it is undesirable to disable incoming logins the MSS can be configured to require a login password for incoming connections with the Change Server Incoming Password command The incoming password feature can be disabled with the Change Server Incoming Nopass command Login Password The login password is required for remote console logins and when the MSS password protection feature is enabled The default login password is access To specify a new login password use the Change Server Loginpass command and specify a new password of up to six alphabetic characters Figure 3 10 Changing the Login Password for MSS VIA and MSS4 Local gt SET PRIVILEGED Password gt system not echoed Local gt gt CHANGE SERVER LOGINPASS badger Figure 3 11 Changing the Login Password for MSS100 Local gt SET PRIVILEGED Password gt system not echoed Local gt gt CHANGE LOGINPASS badger Note Default passwords may pose a security risk and should be changed as soon as possible The login password affects both serial ports Incoming TCP IP Logins Web Browser Login and Configuration If your MSS has an IP address you can log into it using a standard web browser with Javascript enabled Simply type the MSS IP addre
16. connect the transmitter of the master device to the wire that is connected to the receive terminals on the slave devices and connect the receiver of the master device to the wire that is connected to the transmit terminals on the slave devices In essence the master device will be connected to the slave devices with a swapped cable In four wire mode the MSS is able to send and receive data simultaneously The advantages of four wire mode are double the throughput of two wire mode and a guaranteed open path to each slave device s receiver Figure 4 25 Enabling Four Wire RS 485 Mode for MSS4 Local gt CHANGE RS485 PORT 2 MODE 4WIRE Figure 4 26 Enabling Four Wire RS 485 Mode for MSS VIA Local gt CHANGE RS485 MODE 4WIRE 4 9 MSS User Guide 4 Configuration TXDrive The MSS VIA can be configured to always drive the TX transmit signal or tri state transmit receive or ignore when not actively transmitting The Change RS485 TXDrive command takes one of two parameters The Always parameter sets the MSS for continuous TXDrive both high and low The Automatic parameter sets the MSS for TXDrive only when transmitting Figure 4 27 Changing TXDrive for MSS4 Local gt gt CHANGE RS485 PORT 2 TXDRIVE AUTOMATIC Figure 4 28 Changing TXDrive for MSS VIA Local gt gt CHANGE RS485 TXDRIVE AUTOMATIC Note You can only set TXDrive for Always when using four wire mode It must be set to Automatic f
17. does not have a Break key you can configure a local switch key Figure 5 6 Defining a Local Switch for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 LOCAL SWITCH L Figure 5 7 Defining a Local Switch for MSS100 Local gt gt CHANGE LOCAL SWITCH L Backward Forward and Switches The Backward and Forward commands when entered at the Local gt prompt allow users to navigate through current sessions A user s open sessions can be thought of as a list from the earliest to the most recently created Forward refers to a more recent connection while Backward refers to a session started earlier The list is also circular going forward from the most recently created session takes you to the earliest session and going backward from the earliest session resumes the most recent session For example user Bob connects to host Thor He then breaks to local mode and connects to host Duff After working he breaks and connects to host Conan His session list shown with the Show Session command would be Thor Duff Conan Conan is the current session meaning the session to which the user is currently connected or the last session the user was in before entering local mode If Bob presses the backward key while working in Conan he will resume his session on Duff If he presses the forward key while working in Conan he will move to his session on Thor 5 3 MSS User Guide 5 Using the MSS The Change Port Backward Switch and Change Por
18. followed by a number from one to seven if using the MSS4 or the Change Session Limit command followed by a number from one to seven if using the MSS100 Status Displays The commands listed in this section display information about the current configuration and operating status of the MSS The following sections describe what a user will see when typing the Show commands in interactive local mode Show 80211 Note Wireless commands apply to MSS VIA only This command shows the current 802 11 wireless Ethernet networking settings including MAC address ESSID network mode and channel number These settings are effective whenever there is a compatible wireless LAN PC card in the MSS PC card slot Show Hostlist This command shows the current contents of the host table used for multihost mode connections Host entries are numbered from 1 to 16 5 4 MSS User Guide 5 Using the MSS Show Psecurity This command shows the current TCP IP security table if one exists Addresses or ranges of addresses are listed according to the kind of restrictions placed upon them Show Ports This command displays the configuration and connection status of the serial port Settings such as flow control baud rate parity and default hosts are shown In addition users can view the status of DSR and DTR serial signals port access type and login status Errors are summarized although in less detail than in the Show Server Counters display
19. gt gt CH Local gt gt Local gt gt CH Q D D pD Z Q j E E MSS User Guide 5 Using the MSS Setting up dedicated hosts ensures that the units will always talk to each other Enabling Autostart for both units enables one MSS to send data to the other MSS without having to wait for a serial carriage return to start the session The second MSS knows exactly which other MSS to accept connections from Finally when Autostart is enabled the access mode must be either Local or Dynamic Dynamic is more flexible Multihost Mode Multihost mode is used to set up a data pipe between a serial device attached to the MSS and multiple hosts on the network Data from any network host goes out of the MSS serial port and data from the serial port is sent to all connected network hosts The MSS does not alter the data in any way it only forwards it between the serial port and the hosts There are a few important things to note about multihost connections The MSS attempts to send data in the order it is received That is it reads in and sends data from one host before reading in data from another host The MSS will ping TCP and UDP hosts before sending packets to make sure the remote hosts are active If they are active the MSS makes the real connection and passes the data If not the MSS will retry later Similarly if one of the host connections is terminated prematurely the MSS will attem
20. more APs and the APs may or may not be connected to a physical Ethernet network You must tell your MSS which type of network is present with the Change 80211 NETWORKMODE command Figure 4 72 Configuring the Network Mode Local gt gt CHANGE 80211 NETWORKMODE ADHOC or Local gt gt CHANGE 80211 NETWORKMODE INFRASTRUCTURE The network mode setting relates to the channel setting explained next Channel The frequency band allocated to 802 11 wireless communications is subdivided into different channels to allow subnetworking Generally speaking your MSS needs to know which channel it should use for communications it will be the same as the one being used by the local AP You can also set the channel to Any the default which causes the MSS to use the same channel used by the strongest AP with the same ESSID Note Because some of the channels overlap slightly avoid using adjacent channels within a workgroup area or crosstalk and lower throughput may result Channel overlap depends on the Region setting see your PC card documentation for specific information about which channels are available in your area Figure 4 73 Configuring the 802 11 Channel Local gt gt CHANGE 80211 CHANNEL 7 The channel setting relates to the network mode setting For infrastructure network mode you should set the channel to Any so the MSS can sync with an AP For Ad Hoc network mode you should set a specific channel numbe
21. on the CD ROM for more information about incoming and outgoing connections Note Outgoing connections cannot be made via the same method as the incoming connection was made Thus if Telnet was used to enter the MSS it cannot be used to back out To start an outgoing Telnet session type Telnet at the Local gt prompt followed by either the host s name or its numeric IP address Figure 3 19 Telnet Connection Local gt TELNET 192 0 1 66 Logout To manually log out of the MSS type Logout at the Local gt prompt or press Ctrl D Figure 3 20 Logging out of the MSS Local gt LOGOUT 3 22 4 Configuration Overview Certain parameters must be configured before the MSS can function on the network Although many users will prefer to use the EZWebCon graphical user interface this chapter explains how to configure the MSS via the command line interface Note Instructions for using EZWebCon are included on the distribution CD ROM EZWebCon also has online help to assist you with configuration The command line interface allows users to enter commands at the Local gt prompt to configure monitor and use the MSS This chapter covers the more important MSS commands such as Rebooting the MSS Protocol Configuration SNMP IPX NetWare Configuration LAT Configuration RS 485 Configuration Rebooting the MSS There are two types of reboots for the MSS A normal reboot restarts the MSS A facto
22. sockets There are two categories of sockets Well known sockets are those that have been defined in RFCs Requests for Comments for example port 23 is used for Telnet connections There are also custom sockets that users and developers define for their specific needs Note If the serial port is in use the socket connection will be refused There are some important points to remember when making a socket connection Port access must be set to either Dynamic or Remote to allow network connection requests Local access does not allow a port to receive connection requests from the network To change the port s access type use the Change Port Access command followed by either Dynamic or Remote The port must be idle Use the Show Ports command to verify that the port is not in use To ensure that the port will be idle Telnet to the remote console port rather than attach a terminal to the serial port Only one serial port connection is allowed at a time except in the case of Multihost Mode Timing between serial signals such as DSR RTS and CD is not preserved and the state of such signals is not readable 5 1 MSS User Guide 5 Using the MSS TCP IP Socket Connections Note TCP IP socket connections applies to MSS VIA only The MSS supports TCP IP socket connections to ports 2001 and 3001 Note Starting with firmware v3 6 8 the MSS VIA supports socket connections to port 2002 and 3002 also to reach the DB9 seria
23. the port when this occurs using the Change Port DSRLogout Enabled command This also prevents users from accessing other sessions by switching terminal lines Figure 4 56 Enabling DSRLogout for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 DSRLOGOUT ENABLED 4 15 MSS User Guide 4 Configuration Figure 4 57 Enabling DSRLogout for MSS100 Local gt gt CHANGE DSRLOGOUT ENABLED DTRWait Note DTRWait is not available in RS 485 mode Spurious characters from the modem may be interpreted as a user login which could cause the port to be unavailable for connections To avoid this behavior the MSS uses the Data Transmit Ready DTR output line to signal the serial device that a connection is possible or acceptable Normally DTR will be asserted when the port is idle which allows devices to answer an incoming connection many devices will not do so unless DTR is asserted The DTRWait feature keeps the MSS from asserting DTR until the port is actually in use whether due to a login or a network connection To control DTRWait use the Change Port DTRWait command Figure 4 58 Enabling DTRWait for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 DTRWAIT ENABLED Figure 4 59 Enabling DTRWait for MSS100 Local gt gt CHANGE DTRWAIT ENABLED The MSS will generally assert DTR when a connection begins and de assert DTR when the connection ends Logouts In addition to DSRLogouts the p
24. use If the DHCP server doesn t list your MSS IP address there may be a problem BOOTP Troubleshooting If the BOOTP request is failing and you have configured your host to respond to the request check these areas Table 6 3 BOOTP Troubleshooting Area to Check SA IEUEL L BOOTP is in your system s letc services file The MSS is in the loadhost s The MSS must be in this file for the host to answer a BOOTP or TFTP BOOTP must be an uncommented line in etc services letc hosts file request The download file is in the The download file must be in the correct directory and world readable correct directory and is world Specify the complete pathname for the download file in the BOOTP readable configuration file or add a default pathname to the download filename Some hosts will not allow BOOTP replies across IP networks Either use a host running a different operating system or put the MSS in the same IP network as the host The MSS and host are in the same IP network MSS User Guide 6 Troubleshooting RARP Troubleshooting Area to Check address in the host s letc ethers file address in the letc hosts file The operating system The MSS name and hardware The MSS name and IP Table 6 4 RARP Troubleshooting Explanation The MSS name and hardware address must be in this file for the host to answer a RARP request The MSS name and IP address must be in this file for the host to answer a
25. 1 Ethernet network for MSS VIA Ease of Use The MSS family of products has a simple but powerful command interface for both users and system managers The MSS Local mode supports command line editing command line recall and command completion An extensive Help facility is included The EZWebCon utility provided on the CD ROM allows you to configure the MSS from any host machine It also allows remote host logins into the MSS VIA which are similar to Telnet logins The Lantronix Web Manager allows you to configure the device server using a standard browser For more information see Web Browser Login and Configuration 1 1 MSS User Guide Protocols 1 Introduction to the MSS Family Remote Configuration The MSS can be logged into and remotely configured via a network login a Telnet login to the remote console port EZWebCon or a web browser connection to the MSS internal HTTP server Context Sensitive Help Context sensitive online help is available from the CLI at any time You may type HELP by itself for overall help HELP lt command gt for help on a specific command or a partial command line followed by a question mark for help on what is appropriate at that particular point Note See the MSS Reference Manual for more information Reloadable Operating Software The MSS stores its operating code in Flash ROM which means that it does not have to download code at boot time If necessary you can
26. 100 SYS can be downloaded from the Lantronix Web site On the home page http www lantronix com click on Downloads Via FTP The MSS software resides on the Lantronix FTP server ftp lantronix com pub Select the directory for the Lantronix product and subdirectory for the latest firmware Always download and read the RELEASE TXT file for detailed information on this firmware Reloading Software The MSS stores software in Flash ROM to control the initialization process operation and command processing The contents of Flash ROM can be updated by downloading a new version of the operational software via NetWare TCP IP or MOP Note EZWebCon can also be used to reload software Regardless of which protocol is used to update Flash ROM the following points are important The Flash ROM software file name MSSxxx SYS should not be changed The download file should be world readable on the host There is a sixteen character length limit for the path name There is a twelve character limit for the filename Use the List Server Boot command to check settings before rebooting Note It is very important to check MSS settings before using the Initialize Reload command to ensure that you are reloading the correct software file Reloading Sequence If DHCP BOOTP or RARP is enabled on the MSS the MSS will request assistance from a DHCP BOOTP or RARP server before starting the download 8 1 MSS User Guide 8
27. 232 DB9 Connectors The MSS4 DB9 connector also provides an RS 232 serial port Figure 7 5 DB9 RS 232 Serial Connector MSS100 Connectors DB25 Connector The figure below shows the pin connections of the MSS DB25 connector Figure 7 6 DB25 Serial Connector DTE DB25 Male TX RTS DSR DCD in 7 3 MSS User Guide 7 Pinouts Modem Wiring DSR Data Signal Ready versus CD Carrier Detect By default most modems assert CD only during a valid connection In this case the modem s CD pin may be wired to the Server s DSR pin Alternately many modems can be configured such that DSR acts like CD In this case the modem s DSR pin may be wired to the Server s DSR pin DTR Data Terminal Ready The MSS normally asserts DTR When modem control is enabled on the MSS the server will de assert DTR for three seconds each time the port is logged out and each time a user disconnects from a modem service The modem must be configured to hang up and recycle when DTR is de asserted If the modem is not configured in this way sessions may not be properly disconnected In this case the modem s DSR pin may be wired to the Server s DSR pin 7 4 8 Updating Software Obtaining Software Software updates and release notes for the MSS can be downloaded directly from the Lantronix World Wide Web site www lantronix com or by FTP ftp lantronix com pub Via the Web The latest version of MSSVIAx SYS MSS4 SYS and MSS
28. 3 System Interface Address Translation IP ICMP TCP and UDP but not the EGP group Character MIB RFC All character oriented 1318 devices RS232 MIB RFC All objects RS 232 style 1317 objects 4 4 MSS User Guide 4 Configuration The MSS will respond to queries for unknown MIBs with a not in MIB error to the requesting host SNMP Trap Support The MSS will generate limited forms of three of the SNMP traps Traps are sent to a host when certain events occur on the MSS The MSS will generate a Coldstart trap when it first boots and will send a Linkup trap when the startupfile if any has been read from a host and normal operation commences If a startupfile has been configured but the download fails the MSS will send an Authentication trap In all three cases the trap will be directed to the IP address of the loadhost for the MSS If a loadhost has not been specified the traps will not be sent Configuring SNMP The MSS has a single community public with read only access You can optionally add a single community with read write access using the Change Server SNMPSetComm command with the MSS VIA and MSS4 or the Change SNMPSetComm command with the MSS100 See the MSS Reference Manual for more details Once you enable an SNMP write community you can configure the following things on the MSS Items marked with an asterisk are saved to NVR RS232 MIB PortInSpeed also changes Por
29. 4 Local gt gt CHANGE PORT 1 PREFERRED TCP 192 168 0 10 Figure 4 64 Defining a Preferred Service for MSS100 Local gt gt CHANGE PREFERRED TCP 192 168 0 10 Dedicated Host A dedicated host can also be defined for a port using the Change Port Dedicated command A dedicated port automatically connects the user to the specified host the user cannot return to local mode on the MSS When the connection is closed the user is automatically logged out of the MSS Figure 4 65 Defining a Dedicated Service for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 DEDICATED TCP 192 168 0 10 Figure 4 66 Defining a Dedicated Service for MSS100 Local gt gt CHANGE DEDICATED TCP 192 168 0 10 Environment strings can be added to the command to change connection characteristics See the Change Port Dedicated command in the MSS Reference Manual for more information Note Because dedicated connections leave no easy way to log into the MSS configuring both MSS serial ports for dedicated service is not recommended unless incoming logins are enabled Otherwise only a Telnet console port connection is possible 802 11 Configuration Note The following section on wireless configuration applies only to the MSS VIA The following parameters should be configured only if you are using the MSS VIA for 802 11 wireless Ethernet networking and have installed a wireless LAN PC card into the MSS PC
30. HANGE SERVER IPADDRESS 192 168 0 10 Figure 4 2 Changing the IP Address for MSS100 Local gt gt CHANGE IPADDRESS 192 168 0 10 Subnet Mask IP networks can be divided into several smaller networks by subnetting When a network is subnetted some of the host part of each address is given to the network part of the address The subnet mask denotes how much is given and allows the device server to decide at connection time whether a given TCP IP host is part of the local network segment All hosts must agree on the subnet mask for a given network When you configure the IP address a default subnet mask will be configured automatically This should work for most networks If your network is divided into subnetworks you will need to create a custom subnet mask Use the Change Server Subnet Mask command Figure 4 3 Setting the Subnet Mask for MSS VIA and MSS4 Local gt gt CHANGE SERVER SUBNET MASK 255 255 255 0 Figure 4 4 Setting the Subnet Mask for MSS100 Local gt gt CHANGE SUBNET MASK 255 255 255 0 Gateway Usually a TCP IP internet is broken down into networks and subnetworks and a host is only able to see the hosts on its own network TCP IP networks rely on routers or gateways to transfer network traffic to hosts on other networks Gateways are typically connected to two or more networks and will pass or route TCP IP packets across network boundaries MSS User Guide
31. LANTRONIX MSS User Guide Part Number 900 328 Rev A 1 04 Copyright amp Trademark Contacts 2004 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 Windows 95 Windows 98 Windows NT Windows ME Windows 2000 and Windows XP are trademarks of Microsoft Corp Netscape is a trademark of Netscape Communications Corporation Lantronix Corporate Headquarters 15353 Barranca Parkway Irvine CA 92618 USA Phone 949 453 3990 Fax 949 453 3995 Technical Support Phone 800 422 7044 or 949 453 7198 Fax 949 450 7226 Online www lantronix com support E mail support lantronix com Sales Offices For a current list of our domestic and international sales offices go to the Lantronix web site at http www lantronix com about contact index html Lantronix Corporate Headquarters 15353 Barranca Parkway Irvine CA 92618 USA Phone 949 453 3990 Fax 949 453 3995 Technical Support Phone 800 422 7044 or 949 453 7198 Fax 949 450 7226 Online www lantronix com support Email mailto support lantronix com Sales Offices For a current list of our domestic and international sales offices go to the Lantronix web site at http www lantronix com about contact index html
32. MSS to enter modem mode when it encounters a modem style AT command Figure 5 16 Enabling Modem Mode for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 MODEM EMULATION ENABLED Local gt gt CHANGE PORT 1 AUTOSTART CHARACTER A Local gt gt LOGOUT PORT 1 5 8 MSS User Guide 5 Using the MSS Figure 5 17 Enabling Modem Mode for MSS100 Local gt gt CHANGE MODEM EMULATION ENABLED Local gt gt CHANGE AUTOSTART CHARACTER A As soon as someone types an AT command the MSS will enter modem mode and begin processing the AT commands Modem Mode Commands The following commands are available only in modem mode they will have no effect when typed at the Local gt prompt Figure 5 18 Modem Mode Commands Function Help gives list of valid AT commands Pass through to normal command line interface Ex ATC CH SERVER NAMESERV 192 168 0 10 Forms a TCP connection to the specified host Two IP address formats are allowed The first uses periods while the second omits periods and adds zeroes to segments less than 3 characters long Ex ATDT 192 168 0 10 3001T Ex ATDT 192 168 00 010 3001T Users can specify sockets as well in the examples 3001T tells the MSS to form a raw TCP connection to socket 3001 Command AT ATC lt command gt ATDT lt ipaddress gt Note If the host software does not accept a colon use a comma
33. MSS100 in a network Basic knowledge of networking installation is assumed Read this chapter completely before continuing MSS VIA Installation Components The MSS VIA front panel has a male DB9 RS 232 serial connector a reset button and a male DB25 serial connector supporting RS 232 RS 422 or RS 485 Figure 2 1 MSS VIA Front Panel console serial 2 serial 1 reset Reset DB25 Serial Port Button DB9 Serial Console Port Note When the reset button is pressed and held during the power up and boot procedure for at least 3 seconds the MSS VIA returns to its factory default configuration The MSS VIA rear panel has an RJ45 Ethernet connector a PC card slot and a power connector 2 1 MSS User Guide 2 Installation Figure 2 2 MSS VIA Rear Panel 10 100 port T mE 7 24VDC RJ45 Type VII PC Power Ethernet Cord Slot Connector Port Five LEDs are located on the top of the unit The table below explains their functions LED Serial OK PC Card 100 Link Table 2 1 MSS VIA LEDs Function Blinks green to indicate serial activity Blinks green or orange yellow to indicate network activity Green Fast blink 1 2 second the unit is booting slow blink 2 seconds the unit is running normally Orange Yellow Packets sent or received Blinks yellow green or red to indicate PC card status Off No PC card inserted Red blinking PC card not read or not supported
34. NGE 1 STOPBITS 2 Local gt gt CHANGE 1 PARITY EVEN Figure 4 47 Configuring Serial Port Parameters for MSS100 Local gt gt CHANGE CHARSIZE 7 Local gt gt CHANGE STOPBITS 2 Local gt gt CHANGE PARITY EVEN 4 13 MSS User Guide 4 Configuration Flow Control Note RTS CTS Flow Control is not available in RS 485 mode Both RTS CTS hardware and XON XOFF software flow control methods can be used on the MSS RTS CTS controls data flow by sending serial port signals between two connected devices XON XOFF controls data flow by sending particular characters through the data stream Ctrl Q to accept data XON and Ctrl S when data cannot be accepted XOFF Note Applications that use Ctrl Q and Ctrl S will conflict with XON XOFF flow control in which case RTS CTS is recommended To switch between flow control methods use the Change Port Flow Control command followed by the preferred method If you do not wish to use flow control at all specify None Figure 4 48 Enabling Recommended Flow Control for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 FLOW CONTROL CTSRTS Figure 4 49 Enabling Recommended Flow Control for MSS100 Local gt gt CHANGE FLOW CONTROL CTSRTS or Local gt gt CHANGE FLOW CONTROL XON If you re using XON XOFF flow control the XON XOFF characters will be removed from the data stream by default To prevent this removal the
35. Passflow option can be enabled However passflow is unnecessary in most situations See the Commands chapter in the MSS Reference Manual for more information Figure 4 50 Enabling Passflow for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 PASSFLOW ENABLE Figure 4 51 Enabling Passflow for MSS100 Local gt gt CHANGE PASSFLOW ENABLE Modems and Modem Signaling The following sections explain some of the MSS options that are typically considered to be modem related They do not apply exclusively to modems but to communications devices in general Most options are mutually exclusive when enabled Note Modem Emulation Mode in which the MSS acts like a modem and only accepts AT modem commands is discussed in 5 Using the MSS After configuring modem related settings refer to the Modem Configuration Checklist in 5 Using the MSS 4 14 MSS User Guide 4 Configuration Modem Control If a connection has ended the MSS should be able to log out the port and prepare to accept a new connection Similarly if no connection is open the MSS should know to ignore spurious characters from the port and only accept valid connection attempts The MSS can do both of these when modem control is enabled Modem control implies three things DSRLogout enabled meaning the MSS will log out the port when DSR is dropped DTR wiggle on logout meaning the MSS will hold DTR low for approximately 3 seconds after the port is log
36. Red solid PC card hardware failure Yellow blinking Scanning for Access Point AP or Ad Hoc peer Yellow solid PC card identified initialization in progress Green blinking Negotiating settings with AP or Ad Hoc peer Green solid 802 11 link established PC card ready for use Glows green to indicate a 100 Mb Ethernet connection Glows green while the device server is connected properly to a wired 10BASE T or 100BASE T Ethernet network Note Although a red LED during boot mode usually signals an error red LED patterns are part of the normal operation of the MSS and are not necessarily indicative of errors or dangerous operation MSS User Guide 2 Installation Installation Procedure The MSS VIA can be used to network enable serial devices in either a wired or a wireless network as shown in the following figures Figure 2 3 Example Wired Network Layout Ethernet RS 485 Serial Devices Figure 2 4 Example Wireless Network Layout Ethernet Access Point The MSS should be positioned close to the device it will be servicing Since powering down the unit will terminate any active sessions it may be desirable to place the device server in a location secure from user access Also be aware of the unit s environmental operating limits and cabling requirements See Chapter7 Pinouts and MSS VIA Specifications at the end of this chapter for details When using a wireless LAN PC card for the network connection
37. Tunnel Two MSS device servers can be connected to emulate a direct serial connection across a LAN or WAN Device servers connected in this way can pass data only they will not be able to pass status signals DSR DTR CTS RTS etc or preserve timing between characters The basic network configuration for this virtual serial line is shown in the figure below Note Wireless connections apply to the MSS VIA only 5 5 MSS User Guide 5 Using the MSS Figure 5 10 Back to Back MSS Connections Serial Device Serial Device Wired or Wireless B O C Ethernet OcIL 192 168 5 2 192 168 5 10 TCP Configuration Assuming the MSS serial port parameters have been configured properly the device servers are configured as follows for MSS VIA and MSS4 MSS_A Local gt gt CHANGI Local gt gt CHANG PORT 1 DEDICATED TCP 192 168 0 10 3001T PORT 1 AUTOSTART ENABLED Aw MSS B Local gt gt CHANGE PORT 1 ACCESS REMOTE Local gt gt CHANGE PORT 1 DEDICATED NONE Local gt gt CHANGE PORT 1 AUTOSTART DISABLED Configuration for MSS100 is as follows DEDICATED TCP 192 168 0 10 3001T TART ENABLED MSS A Local gt gt C Local gt gt AU I HP 2 na MSS _B Local gt gt CHANGE ACCESS REMOTE Local gt gt CHANGE DEDICATED NONE Local gt gt CHANGE AUTOSTART DISABLED Note If the device servers are on d
38. Updating Software attempts The MSS will then try TFTP NetWare and MOP booting in that order provided that it has enough information to try each download method Downloading and rewriting the Flash ROM will take approximately two minutes from the time the Initialize command is issued If the download file cannot be found or accessed the MSS can be rebooted with the code still in Flash ROM The OK ACT LED will blink quickly while the MSS is booting and reloading code and then slowly when it returns to normal operation Note If you experience problems reloading Flash ROM refer to Troubleshooting Flash ROM Updates FTP 1 Use an FTP client to open an FTP session to the IP address of the MSS Log in with the username of root Enter the privileged user password the default is system Make sure your FTP client is set to do a binary transfer Stay in the same directory the default login directory is the correct directory oor gt BN Do an FTP Put of the MSS sys file for example MSSVIA x sys for the MSS VIA Once the file is downloaded the MSS writes the file to Flash this takes a few moments and then automatically reboots After rebooting the unit runs the new firmware TCP IP Before the MSS downloads the new software it will send DHCP BOOTP and or RARP queries all are enabled by default Next the MSS will attempt to download the MSSxxx SY file using TFTP Trivial File Transfer Protocol If a host prov
39. al execution This step takes approximately five seconds Once the MSS is running normally the Link LED should be solidly lit to indicate a functioning Ethernet connection and the OK LED should blink once every two seconds The PC Card LED should remain lit as long as there is a PC card inserted into the PC card slot 4 Supply power to the serial device if necessary 5 Ensure the MSS is working There are a few ways to check Wait for approximately 30 seconds after powering the unit up If the Link LED is solidly lit and the OK LED blinks green once every two seconds the MSS is probably operating normally Ifyou have connected a serial terminal to the MSS DB25 or DB9 port press the Return or Enter key You should see several lines of start up messages followed by a Local gt prompt Ping the MSS from a TCP IP host For more instructions see P Address Configuration Figure 2 6 Pinging the MSS ping nnn nnn nnn nnn 2 5 MSS User Guide 2 Installation MSS VIA Specifications Power power cube adaptor Adapter Input 100 240 VAC Universal Power Supply with International Adapters Output 12 VDC Max Current 1A 12 V MSS VIA power input range 7 24 VDC Temperature Note Rapid temperature changes may affect operation Do not operate near heating or cooling devices or areas that open to the outdoors Operating range 5 to 50 C 41 to 122 F Storage range 40 to 66 C 40 to 151 F Ma
40. al routing must be enabled To see which frame types are enabled enter the Show NetWare command Change NetWare Encapsulation controls which of the frame types are used The choices are Ether_ll Native 802_2 and SNAP which provide for Ethernet v2 802 3 Native mode 802 2 and 802 2 SNAP encapsulation types Figure 4 14 displays an example routing and encapsulation configuration The 802 3 Native mode and 802 2 SNAP frame types are enabled while Ethernet v2 and 802 2 are disabled Because more than one frame type is enabled internal routing must also be enabled Figure 4 14 Enabling Selected Frame Types Local gt gt CHANGE NETWARE ENCAPSULATION NATIVE ENABLED TWARE ENCAPSULATION SNAP ENABLED Local gt gt CHANGE Local gt gt CHANGE TWARE ENCAPSULATION ETHER 2 DISABLED Local gt gt CHANGE TWARE ENCAPSULATION 802 2 DISABLED Z Z Z Z Local gt gt CHANGE TWARE ROUTING ENABLED Internal Network Number When internal routing is enabled the MSS needs an internal network number that is unique on the network When addressing IPX packets to a fileserver devices use the fileserver s internal network number as the destination address The internal network number for the MSS is a four byte number that defaults to the last four bytes of the unit s Ethernet address for example a3001234 It is unlikely tha
41. ave their own Ethernet addresses The MSS is a node Devices connected to the MSS are not nodes Server server Server when capitalized refers to your Lantronix MSS device server product When not capitalized it refers to a generic network server machine Session A logical connection to a service A typical session is a terminal connected to a host through the device server Documentation The rest of this User Guide is divided into chapters as follows 2 Installation explains the MSS connectors and the installation process 3 Getting Started contains configuration information to get the unit up and running Read this chapter in its entirety and be sure to configure the required items 4 Configuration contains additional configuration information 5 Using the MSS contains information about how the MSS can be used in different applications Read this chapter to get the most out of using the MSS in your situation 1 3 MSS User Guide 1 Introduction to the MSS Family The remaining chapters include 6 Troubleshooting 7 Pinouts and 8 Updating Software Read them as necessary The MSS Reference Manual located on the CD ROM in PDF format provides the full MSS family command set as well as additional configuration information Note All IP addresses subnet masks and hardware addresses in this User Guide are examples only 1 4 2 Installation This chapter covers the installation of the MSS VIA MSS4 and
42. be sure to read the PC card manual for specific placement and distance requirements 2 3 MSS User Guide 2 Installation The following diagram shows a properly installed MSS VIA The numbers in the diagram refer to the installation steps in this section Figure 2 5 MSS VIA Connected to Serial Device and Network Serial Device Category 5 Wireless Ethernet Cable to network 1 Connect the MSS to a serial device a b Connect one end of a serial cable to the MSS DB25 or DB9 connector See Chapter 7 Pinouts for MSS connector pinout information You may want to connect a serial terminal to the MSS DB9 console port for the first connection both to ensure that your device server is working and to configure the necessary network settings The default settings for the console port are 9600 baud 8 data bits one stop bit no parity and no flow control Connect the other end of the cable to your serial device s serial port 2 Connect the MSS to the network via one of the following methods a Connect one end of a Category 5 Ethernet cable to the Ethernet network Connect the other end of the cable to the RJ45 Ethernet port on the back of the MSS Note You must use a 10 100BASE T wired connection if you wish to perform initial configuration via the network Insert an 802 11 wireless PC card into the MSS PC card slot To see which wireless PC cards the MSS supports visit the Lantronix Web site a
43. c You can disable the reception of unencrypted traffic by entering the following command Figure 4 76 Disabling WEP Unencrypted Traffic Reception Local gt gt CHANGE 80211 WEP RECEIVE ENCRYPTED Local gt gt CHANGE 80211 RESET This command will cause the MSS to discard and ignore any unencrypted wireless frames that it receives and accept only frames encrypted with its WEP key Formatting an ATA Flash Card Certain kinds of ATA flash memory and disk storage cards can also be used in the PC card slots Before you insert any kind of card into the MSS please check the Lantronix web site to make sure that your card is supported and read this section carefully Note The MSS does not support PC card hot swapping Any time you insert a PC card into an MSS PC card slot you must reboot the MSS ATA cards must be formatted before you can use them with your MSS To format an installed ATA card issue the Disk Format command for either pecard1 if the card is in the top PC card slot or for pecard2 for the bottom slot This command erases all the existing data on the card and formats the card for use with the MSS Figure 4 77 Formatting a PC Card Local gt gt DISK FORMAT PCCARD1 Once a card has been formatted for use with the MSS it will be available for immediate use anytime the MSS is started up The formatted card can be used the same as the on board MSS Flash disk see Disk Mana
44. can be used for shield ground The main advantage of using two wire mode is reduced cabling costs Figure 4 21 Example Two Wire Mode Network MSS On a two wire RS 485 network the MSS must turn its transmitter on when it is ready to send data and then off a certain period of time after the data has been sent so that the 4 8 MSS User Guide 4 Configuration line is available to receive again At most baud rate settings the timing delay is typically one character length with a maximum of 1 5 character lengths Note For 600 baud and 4800 baud operation the timing delay is doubled Figure 4 22 Enabling Two Wire RS 485 Mode for MSS4 Local gt CHANGE RS485 PORT 2 MODE 2WIRE Figure 4 23 Enabling Two Wire RS 485 Mode for MSS VIA Local gt CHANGE RS485 MODE 2WIRE Note For two wire mode the TXDrive setting must be set to Automatic see TXDrive on page 4 10 If you enable two wire mode and TXDrive is set for Always the MSS returns an error Four Wire Mode In four wire mode the MSS operates in full duplex one pair of wires functions as the transmit pair another pair of wires functions as the receive pair and there is a shield ground wire for each pair In a four wire RS 485 network one device acts as master while the other devices are slaves Figure 4 24 Example Four Wire Mode Network Master MSS It is important to
45. cessed locally or via a network connection such as a modem The MSS serial port and the services on the network each belong to one or more service groups When a user or device requests a connection to a service the LAT host will check the service groups to which both the requester and the service belong If any group number is common to both the connection attempt will continue If not access will be denied The Change LAT Groups command establishes group numbers for the MSS and its serial port Figure 4 17 Changing Service Groups Local gt gt CHANGE LAT GROUPS 1 7 13 105 210 216 Note Each time the Change LAT Groups command is entered the previous group list is replaced Circuit Timer Message transmission on LAT networks is controlled by timers The MSS circuit timer specifies when messages will be sent from the device server to other network nodes This timer value is set to a standard default at the factory and should not need to be changed If you need to change the length of the circuit timer use the Change LAT CircTimer command followed by a timer value integer The timer value can range from 30 to 200 milliseconds Figure 4 18 Changing Timer Delay Local gt gt CHANGE LAT CIRCTIMER 50 4 7 MSS User Guide 4 Configuration RS 485 Configuration Note This section applies to MSS models MSS VIA and MSS4 only The RS 485 standard allows a serial connection to be shared like a party lin
46. dem configuration and re checked when there is modem trouble The modem must disconnect immediately when DTR is de asserted The modem must assert CD or DSR if connected when connected to another modem It must not assert CD when disconnected The modem may optionally assert CD during outbound dialing The modem and MSS must agree on the flow control method and baud rate scheme The modem must not send result codes or messages to the MSS except optionally during outgoing calls The modem should be set to restore its configuration from non volatile memory when DTR is dropped MSS User Guide 6 Troubleshooting The modem should be configured to answer the phone if incoming connections are to be supported Generally this is done with the ats0 1 command The modem should not be configured to answer the phone unless the MSS asserts DTR MSS Modem control must be enabled Using modems on ports without modem control enabled will lead to security problems The MSS Autobaud feature should be enabled only when required Entering Commands at the Boot Prompt If the Boot gt prompt appears on the serial console instead of the Local gt prompt one of two things may be wrong Either the MSS does not have enough information to boot or the network or flash boot has failed If pressing the Return key does not display a prompt press any other key The Boot gt prompt should appear If the MSS does not have enough info
47. e As many as 32 devices can share the multidrop network Typically one device is the master and the other devices are slaves There are a few important things to note about RS 485 networking with the MSS MSS VIA allows for a serial connection on one port MSS4 allows for a serial connection on all four ports specify the port when entering RS 485 commands The MSS can be used in either two wire or four wire mode Refer to the following sections to determine which mode to use The maximum RS 485 network cabling length without repeaters is 4 000 feet Lantronix recommends the use of shielded twisted pair cabling Note A large number and variety of protocols run over RS 485 However the MSS does not convert or interpret serial data It only moves data between serial and Ethernet Any RS 485 protocol will have to be implemented by host software either on the end device or running internally using the Software Development Kit SDK See 7 Pinouts for information about the RS 485 DB25 connector To enable RS 485 mode on the MSS enter the Change RS485 Enabled command RS 232 mode is enabled by default Figure 4 19 Enabling RS 485 Mode for MSS4 Local gt CHANGE RS485 PORT 2 ENABLED Figure 4 20 Enabling RS 485 Mode for MSS VIA Local gt CHANGE RS485 ENABLED Two Wire Mode In two wire mode the MSS operates in half duplex one pair of wires shares transmit and receive signals and an optional third wire
48. e device server and then ping the device server see the figure below This process typically requires superuser privileges Figure 3 4 Entering ARP and Ping UNIX arp s 192 168 0 10 00 80 a3 xx xx xx ping 192 168 0 10 For the ARP command to work in Windows 95 the ARP table on the PC must have at least one IP address defined other than its own Type ARP A at the DOS command prompt to verify that there is at least one entry in the ARP table If there is no other entry beside the local machine ping another IP machine on your network to build the ARP table This has to be a host other than the machine on which you re working This is not necessary in Windows 98 or above Use the following commands to ARP the IP address to the MSS and make the MSS acknowledge the IP assignment Figure 3 5 Entering ARP and Ping Windows C ARP S 192 168 0 10 00 80 A3 XX XX XX C PING 192 168 0 10 Note There should be replies from the IP address if the ARP command worked When the MSS receives the ping packet it notices that its IP address is not set and sends out broadcasts to see if another node is using the specified address If no duplicate is found the device server uses the IP address and responds to the ping packet The MSS does not save the learned IP address permanently This procedure is intended as a temporary measure to enable EZWebCon to communicate with the device server or allow an administrator to Telnet into the MSS
49. e other end of the cable to your serial device s serial port 2 8 MSS User Guide 2 Installation 2 Connect the MSS to the network Connect one end of a Category 5 Ethernet cable to the Ethernet network Connect the other end of the cable to the RJ45 Ethernet port on the front of the MSS Supply power to the MSS This can be done through either the MSS power jack or the screw terminal power connector Do not supply power to both the power jack and the screw terminal at the same time a Connect one end of a power connector to the MSS via one of the following Connect the barrel jack end of the power cable to the MSS power jack Connect power to the 9 30V screw terminal power connector and to ground and chassis ground Note The auxiliary input terminal block may be connected only to a SELV circuit The maximum rating is 30Vdc peak b Supply power to the MSS by connecting the power cube end of the power cable to a standard wall outlet When the MSS receives power it begins the boot process The MSS runs through a set of power up diagnostics for approximately five seconds The OK and Serial LEDs should show varying patterns corresponding to the test being run Note If there is a valid connection to a wired Ethernet network the Link LED should remain solid green or yellow once the unit has completed booting Once the MSS is running normally the Link LED should be solidly lit to indicate a functioning wired Ethern
50. e the device server Instructions for installing running and using EZWebCon are included on the CD ROM Telnet To log into the MSS type Telnet followed by the MSS IP address The MSS must have an IP address assigned in order for this command to work Figure 3 14 A Telnet Connection telnet 192 168 0 10 Rlogin Rlogin is similar to Telnet It allows users to connect to a remote device Rlogin is enabled by default Figure 3 15 An Rlogin Connection rlogin 192 168 0 10 Serial Port Logins Attach a terminal to the serial port and press the Return key The Local gt prompt should be displayed Proceed to 4 Configuration to configure the unit using the command line interface If there is a problem during the boot process pressing any key will display the Boot prompt This prompt enables you to enter a special set of commands called Boot Configuration Program BCP commands which are discussed in 6 Troubleshooting 3 20 MSS User Guide 3 Getting Started Remote Console Logins The MSS enables users to configure the device server via a single Telnet connection to the remote console port designated as port 7000 Connections to the console port cannot be disabled This ensures that administrators will always be able to log into the port To connect to the remote console port use the Telnet command followed by the MSS IP address and the remote console port number You will have to enter the login password T
51. ecified software loadfile it will restart itself with full functionality If the loadfile is not found the device server tries to reload continuously If there is an error or if the console s Return key is pressed the MSS will re enter the Boot Configuration Program CHANGE BOOTP Enabled Disabled Enables or disables the sending of BOOTP queries during the boot sequence It is enabled by default 6 4 MSS User Guide 6 Troubleshooting CHANGE DHCP Enabled Disabled Enables or disables the sending of DHCP queries during the boot sequence It is enabled by default CHANGE HARDWARE xx xx xx Specifies the last three numbers of the device server s Ethernet address The first three numbers will be supplied automatically The Ethernet address should have been set at the factory Setting an incorrect address could cause serious network problems CHANGE IPADDRESS ip_address Specifies this device server s IP address Uses the standard numeric format CHANGE LOADHOST ip_address Specifies the host attempting to load the firmware The IP address should be in standard numeric format no text names are allowed CHANGE RARP ENABLED DISABLED Enables or disables the sending of RARP queries during the boot sequence It is enabled by default CHANGE SECONDARY ip_address Specifies a backup loadhost The IP address should be in standard numeric format no text names are allowed The backup loadhost will be queried if the primary h
52. et connection and the OK LED should blink once every two seconds 4 Supply power to the attached serial device s if necessary 5 Ensure the MSS is working Wait approximately 30 seconds after powering the unit up If the Link LED is solidly lit and the OK LED blinks green once every two seconds the MSS is operating normally Ifyou connected a serial terminal to the console port press the Return key You should see several lines of start up messages followed by a Local gt prompt 2 9 MSS User Guide 2 Installation MSS4 Specifications Power power cube adaptor Adapter Input 100 240 VAC US Output 12 VDC Current 1 5A 12VDC MSS4 power input range 9 30VDC Temperature Note Rapid temperature changes may affect operation Do not operate near heating or cooling devices or areas that open to the outdoors Operating range 5 to 50 C 41 to 122 F Storage range 40 to 66 C 40 to 151 F Max temp change 20 C 36 F per hour Humidity Operating range 10 to 90 non condensing 40 to 60 recommended Storage range 10 to 90 non condensing Altitude Note For operations above 2 4 km 8 000 ft decrease the operating temperature rating by 1 8 C for each 1 000 m 1 F for each 1 000 ft Operating 2 4 km 8 000 ft Storage 9 1 km 30 000 ft 2 10 MSS User Guide 2 Installation MSS100 Installation Components The MSS100 front panel has a male DB25 serial connector The following figu
53. ettings a For Ethernet Address enter the number that appears on the bottom label of your MSS b For IP Address enter the desired IP address to use for this MSS c For Subnet Mask change the values provided only if you wish to use a mask other than the default The default value should be correct in most cases d For Loadhost enter the IP address of the network host where you intend to store your operating code and SDK files if used 4 Click OK Note If you have an older version of EZWebCon refer to the Readme that was included with it Using a Web Browser The Web Manager web browser interface can be used to change the IP address once an initial IP address has been configured The IP address can be changed from the Server Properties subpage or the TCP IP subpage See Web Browser Login and Configuration for more information about the Web Manager 3 16 MSS User Guide 3 Getting Started Using ARP and Ping The ARP ping method is available under UNIX Windows 95 98 ME Windows NT Windows 2000 and Windows XP If the MSS is connected to the LAN but has no IP address it sets its address from the first directed IP packet it receives Note The ARP ping method only works during the first two minutes of MSS operation After two minutes an alternate method must be used or the MSS must be rebooted On a UNIX host create an entry in the host s ARP table and substitute the intended IP address and the Ethernet address of th
54. examples in Figure 4 38 and Figure 4 39 can be visualized as X X X XXX XX data x X XX XXXXXXXX XX XXXX XX XXXX 150 milliseconds transmit packet Another option is to set a one or two character trigger that will cause the MSS to transmit the data You can also specify whether the trigger characters will be sent to the host as part of the serial data or whether they should be discarded the default For example the following commands will cause the accumulated serial data to transmit as soon as the z character is detected in the data stream and to send the matched character Z to the host as part of that data Figure 4 40 Transmitting Serial Data with a Character Trigger for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 DATASEND CHARACTER Z Local gt gt CHANGE PORT 1 DATASEND SAVE 1 Figure 4 41 Transmitting Serial Data with a Character Trigger for MSS100 Local gt gt CHANGE DATASEND CHARACTER Z Local gt gt CHANGE DATASEND SAVE 1 4 12 MSS User Guide 4 Configuration The examples in Figure 4 40and Figure 4 41 can be visualized as X X X XXX XX data X X XX XXXXXXXX XX XXX Z XX XXXX transmit packet The complete syntax of the Change Port Portlist Datasend command is described in the MSS Reference Manual Baud Rate The MSS and attached serial device such as a modem must agree on a speed or baud rate to use for the seria
55. fully connected Outgoing Calls To make a call from the MSS modem port you must connect to the modem card via Telnet To connect to the modem from the network Telnet to the modem port port 2005 Figure 4 78 Connecting to the Modem telnet 192 168 0 10 2005 6 4 22 5 Using the MSS This chapter explains how to use the MSS once it is running Incoming Connections host initiated connections includes socket connections using host applications and using the code examples included on the MSS distribution CD ROM Interactive Connections includes manipulating sessions making outgoing connections and viewing device server and network information with the help of the Show commands In addition this chapter explains Setting up two MSS units to emulate a direct serial connection over the LAN see Serial Tunnel Using the MSS as a data pipe between a serial device and multiple hosts on the network see Multihost Mode Making the MSS look like a modem so that it can be used with existing communications software see Modem Emulation Mode Using the Lantronix COM Port Redirector software to redirect PC COM ports see COM Port Redirector Incoming Connections Socket Connections Each node on a network has a node address and each node address can allow connections on one or more sockets Sometimes these sockets are referred to as ports TCP IP connections can be made directly to the MSS serial port using
56. ged out No Autostart until the attached device asserts DSR To enable modem control enter the Change Port Modem Control command Figure 4 52 Enabling Modem Control for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 MODEM CONTROL Figure 4 53 Enabling Modem Control for MSS VIA and MSS4 Local gt gt CHANGE MODEM CONTROL ENABLED Signal Checking The MSS uses the Data Signal Ready DSR input signal to decide whether there is a valid device connection When MSS signal checking is enabled the MSS will check for the presence of a DSR signal before allowing incoming network connections Connections to the serial port will not be permitted unless the DSR signal is asserted To enable DSR signal checking use the Change Port Signal Check command Figure 4 54 Enabling Signal Checking for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 SIGNAL CHECK ENABLED Figure 4 55 Enabling Signal Checking for MSS100 Local gt gt CHANGE SIGNAL CHECK ENABLED Note Signal checking is not available in RS 485 mode DSRLogout Note DSRLogout is not available in RS 485 mode When a connection is lost the MSS should log out the port and close any sessions If it does not do so security problems may result when the next user logs in When a device connected to the MSS is disconnected or powered off the DSR signal is de asserted The MSS can be configured to automatically log out
57. gement on page 5 6 for more information If the card is ever reformatted for use with another system such as a laptop you will need to reformat it before using it again with the MSS Modem Cards Certain kinds of modem PC cards can be used with the MSS Check the Lantronix web site for a list of currently supported cards Note The MSS does not support PC card hot swapping Any time you insert a PC card into an MSS PC card slot you must reboot the MSS 4 21 MSS User Guide 4 Configuration A properly installed modem card will be treated like an additional MSS serial port If only one card is installed it will always appear as Port 5 The Show Port and Logout Port commands will respond appropriately to the modem card ports The modem ports will always have modem control enabled and should respond to a standard Hayes style AT command set However you should not configure the modem its default configuration will work properly with the MSS If you change the reply codes and status strings the MSS may not be able to respond correctly This is in contrast to most other types of PC cards which the MSS cannot use until properly configured SDK users can access the ports by using device tt4 for Port 5 or tt5 for Port 6 See your SDK documentation for more information on the SDK environment Incoming Calls The MSS will attempt to answer any incoming call that it detects You will get a Local gt prompt after the modems are
58. he MSS in an 802 11 network you must enable wireless networking This will allow the MSS to check for a compatible wireless networking PC card at startup If a compatible card is present the MSS enables wireless networking and ignores the 10 100BASE T Ethernet interface If no compatible PC card is present the MSS will use the 10 100BASE T Ethernet interface Figure 4 68 Enabling 802 11 Local gt gt CHANGE 80211 ENABLED Note You must reboot after enabling 802 11 and you must enter the Change 80211 Reset command after changing any of the other settings listed in this section 802 11 Region When using 802 11 networking you must configure the regulatory region under which you will operate the MSS Configuring this option incorrectly may cause the MSS to broadcast on frequencies that are illegal in your area The factory default setting is 4 18 MSS User Guide 4 Configuration correct for the United States users in other countries should change it to a value appropriate for their area before attempting 802 11 operation Figure 4 69 Setting the 802 11 Region Local gt gt CHANGE 80211 REGION IC Recognized values are FCC United States the default Ic Canada ETSI Europe most countries check with your local regulatory body to make sure that the entire ETSI frequency range is allowed in your area SPAIN Spain FRANCE France MKK Japan MAC Address A MAC address is a unique identifier that distinguis
59. he TCP session is disconnected DSRLogout is enabled implicitly The intent is that the MSS DTR signal will be used as a simulated CD signal to the attached serial device If you are using an MSS with a DB25 connector you will need to change the way you wire the DB25 adapters The serial device s DTR goes out to BOTH its own DSR in and the MSS DSR in When the device asserts its DTR it will see its DSR asserted That way the device thinks that the modem the MSS is ready to accept commands all the time and the MSS can log out the serial port when the device disconnects The MSS DTR out goes to the serial device s CD in That way the MSS can signal the serial device that there is a valid connection and the serial device will know it can send data to the remote device Sequential Hostlist Mode Although Multihost Mode allows up to 16 simultaneous connections Sequential Hostlist Mode uses the host table for failover connections Figure 5 19 Enabling Sequential Hostlist Mode Local gt gt CHANGE PORT 1 DEDICATED SEQLIST When Sequential Hostlist Mode is enabled the MSS attempts to make a connection to the first address in the hostlist If it succeeds it communicates with that host only and does not attempt to connect to any further addresses on the list If it fails to connect to the first address it will attempt to connect to the next address on the list Again once it successfully connects to an address on the list
60. he default login password is access Figure 3 16 Connecting to the Console Port telnet 192 168 0 16 Trying 192 168 0 16 Connected to 192 168 0 16 Escape character is access not echoed Lantronix MSS Version n n n yymmdd Type Help at the Local gt prompt for assistance Enter Username gt jerry Incoming LAT Logins Note This section refers to MSS100 models only To get an MSS login prompt when connecting from a LAT host use the command below Substitute the last six digits of the MSS hardware address for xxxxxx Figure 3 17 LAT Login SET HOST LAT MSS xxxxxx Changing the Login Password The login password is required for remote console logins and when the MSS password protection feature is enabled The default login password is access To specify a new login password use the Change Loginpass command and specify a new password of up to six alphabetic characters Figure 3 18 Changing the Login Password Local gt SET PRIVILEGED Password gt system not echoed Local gt gt CHANGE LOGINPASS badger Note Default passwords may pose a security risk and should be changed as soon as possible This is especially true of the privileged password 3 21 MSS User Guide 3 Getting Started Outbound Connections When logged into the MSS users can make basic outgoing connections using the methods described in this section See the MSS Reference Manual
61. hes different devices on the 802 11 network It is the same as the unit s hardware address For networking purposes the MSS can be configured to use either the PC card s MAC address or its own internal MAC address the default with the Change 80211 MACADDRESS command Using the MSS MAC address allows for more seamless operation when switching between wired and wireless networking Figure 4 70 Configuring the MAC Address Local gt gt CHANGE 80211 MACADDRESS CARD or Local gt gt CHANGE 80211 MACADDRESS MSS Extended Service Set ID ESSID Whenever there is more than one ESS in a wireless LAN architecture devices need to be told which ESS they belong to The ESSID ensures that devices communicate with the right AP To tell the MSS what ESS it belongs to enter the Change 80211 ESSID command The exact string you enter will be determined by the settings of the AP with which you want the MSS to communicate Figure 4 71 Configuring the ESS ID Local gt gt CHANGE 80211 ESSID floor3 You can enter an empty string to associate the MSS with the AP that gives the strongest signal or when there is only one AP available 4 19 MSS User Guide 4 Configuration Network Mode There are two types of 802 11 networks Ad Hoc and infrastructure In an Ad Hoc network devices communicate directly with one another on a peer to peer basis In an infrastructure network the default several devices communicate with one or
62. ice Servers allows you to network enable a variety of serial devices that were not originally designed to be networked medical devices retail point of sale terminals modems industrial machinery and more Typically an MSS achieves this by providing a serial port on one end and a 10BASE T or a 10 100BASE T Ethernet I O port on the other end The MSS VIA provides all the functionality of other MSS products plus a PC card interface allowing the MSS VIA to use a variety of technologies such as 802 11b wireless technology modems and storage cards When an 802 11 PC card is installed in the MSS VIA PC card slot the MSS VIA can link its attached serial device to your wireless LAN This manual assumes knowledge of the IEEE 802 11 Standard governing wireless networking If you are not familiar with wireless networking concepts and implementation please refer to the Standard or the documentation that came with your wireless PC card Note For a current list of supported PC card technologies please check the MSS VIA product page on the Lantronix website http Awww lantronix com Throughout this manual the MSS may be referred to as the MSS or as the device server MSS Family Features TCP IP and UNIX Compatibility The MSS supports a variety of TCP IP features including Telnet Rlogin UDP DNS SNMP WINS FTP DHCP BOOTP RARP and HTTP Connectivity The MSS connects serial devices directly to a wired 10 100 BASE T or wireless 802 1
63. ides DHCP BOOTP or RARP support it can be used to set the MSS IP address all methods and loadhost information BOOTP and RARP only Some BOOTP and TFTP implementations require a specific directory for the MSSVxxx SY file See your host s documentation for instructions To manually configure the MSS IP parameters for software reload use the following commands Figure 8 1 Configuring TCP IP Reload Local gt SET PRIVILEGED Password gt SYSTEM not echoed Local gt gt CHANGE SERVER IPADDRESS nnn nnn nnn nnn Local gt gt CHANGE SERVER SOFTWARE tftpboot MSSxxx SYS Local gt gt CHANGE SERVER LOADHOST nnn nnn nnn nnn Local gt gt LIST SERVER BOOT Local gt gt INITIALIZE RELOAD Note For instructions on how to log into the MSS to enter these commands see Incoming Logins MSS User Guide 8 Updating Software The path and filename are case sensitive and must be enclosed in quotation marks When attempting to boot across an IP router you must configure the router to proxy ARP for the MSS or use the bootgateway feature For more information see Change Bootgateway in the Commands chapter of the MSS Reference Manual located on the CD ROM NetWare The MSSVIAx SYS file should be placed in the login directory on the NetWare file server The MSS cannot actually log into the file server since it knows no username password it can only access files i
64. ifferent IP subnets the default gateway on each unit will have to be configured with the Change Server Gateway command The above commands create a raw 8 bit clean TCP connection between the serial ports of the two servers once the units have been power cycled The commands for MSS_A ensure that it will automatically connect to MSS_B each time it is booted The commands for MSS_B ensure that it is always available to accept connections from MSS_A UDP Configuration When the UDP protocol is used there is no connection each MSS must be told explicitly which hosts it is allowed to accept packets from Each MSS would have to be configured to both send packets to and accept packets from the other MSS Configuration for MSS VIA and MSS4 is as follows MSS_A Local gt gt CHANGI Local gt gt CHANG Local gt gt CHANG PORT 1 DEDICATED TCP 192 168 0 10 4096U PORT 1 AUTOSTART ENABLED PORT 1 ACCESS DYNAMIC Gl El FI MSS_B Local gt gt CHANGE PORT 1 DEDICATED TCP 192 168 0 13 4096U Local gt gt CHANGE PORT 1 AUTOSTART ENABLED Local gt gt CHANGE PORT 1 ACCESS DYNAMIC Configuration for MSS100 is as follows T MSS_A Local gt gt CHANG Local gt gt CHANG Local gt gt CHANG DEDICATED TCP 192 168 0 10 4096U AUTOSTART ENABLED ACCESS DYNAMIC eo A DEDICATED TCP 192 168 0 13 4096U E AUTOSTART ENABLED GE ACCESS DYNAMIC MSS B Local
65. instead ATE Echo mode off ATEO or on ATE1 the default ATH Disconnects the network session ATI Displays modem version information ATQ Result codes on ATQO the default or off ATQ1 Allows serially attached devices to control how the MSS accepts a network call ATSO 0 will cause the MSS to send the RING string to the serial device ATS when it receives a network connection request The serial device must reply with the ATA string ATSO 1 allows the MSS to automatically accept network connections the default Displays result codes There are four options ATVO numeric codes bad commands return an error ATV ATV1 text codes bad commands return an error ATV2 numeric codes bad commands discarded ATV3 text codes bad commands discarded ATAW Returns the user to the command prompt when entered from the serial port during a remote host connection Multiple commands can be entered on the same line for example ATEOQ1V0 will work However if the MSS encounters a command that it doesn t recognize it will ignore the whole command line For this reason you should enter only one command per line 5 9 MSS User Guide 5 Using the MSS Wiring Requirements Serial signals work differently when the MSS is in modem mode First the MSS will enable DTRWait and will not drive DTR until a valid connection is made with the ATDT command see Modem Mode Commands Second the MSS will drop DTR whenever t
66. is especially true of the privileged password If another user is currently the privileged user for the MSS use the Set Privileged Override command to forcibly become the privileged user To relinquish privileged status enter the Set Noprivilege command 3 15 MSS User Guide 3 Getting Started The privileged password can be changed with the Change Server Privpass command Specify a new password of up to six alphanumeric characters Figure 3 2 Changing Privileged Password for MSS VIA and MSS4 Local gt SET PRIVILEGED Password gt system not echoed Local gt gt CHANGE SERVER PRIVPASS walrus Figure 3 3 Changing Privileged Password for MSS100 Local gt SET PRIVILEGED Password gt system not echoed Local gt gt CHANGE PRIVPASS walrus IP Address Configuration The configuration process includes assigning an IP address This value is unique and required on the network Note When you set an IP address you may also need to change the subnet mask from the default natural subnet configuration e g 255 255 255 0 for a Class C IP address See Subnet Mask for more information Using EZWebCon Use the following steps to assign an IP address using the EZWebCon Expert Shell 1 Click the Start button on the Windows taskbar point to Programs and click EZWebCon to launch EZWebCon 2 From the Action menu select Assign IP Address 3 Enter or change the IP related s
67. it will not attempt further connections COM Port Redirector The Lantronix COM Port Redirector application allows PCs to share modems and other serial devices connected to an MSS using Microsoft Windows or DOS communication applications Using their existing communications software PC users dial out to a remote host through a modem connected to the MSS The Redirector intercepts communications to specified COM ports and sends them over an IP wired or wireless network connection to the MSS serial port This enables the PC to use the MSS serial port as if it were one of the PC COM ports The COM Port Redirector software and installation instructions are included on the distribution CD ROM 5 10 6 Troubleshooting This chapter discusses how you can diagnose and fix errors quickly without having to contact a dealer or Lantronix It helps to connect a terminal to the console port while diagnosing an error to view summary messages that may be displayed When troubleshooting always ensure that the physical connections power cable network cable and serial cable are secure If you have trouble with wireless networking it may help to connect the MSS to a wired Ethernet network to verify that it is working properly and to check the wireless settings Note Some unexplained errors might be caused by duplicate IP addresses on the network Make sure the MSS IP address is unique Power up Troubleshooting Problem situations and error
68. l connection Valid baud rates for the MSS VIA are 300 600 1200 2400 4800 9600 the default 19200 38400 57600 115200 and 230400 baud The baud rate can be changed with the CHANGE PORT SPEED command for the MSS VIA and MSS4 or the CHANGE SPEED command for the MSS100 followed by a baud rate number Figure 4 42 Changing the Baud Rate for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 SPEED 19200 Figure 4 43 Changing the Baud Rate for MSS100 Local gt gt CHANGE SPEED 19200 The MSS supports Autobaud which allows the serial port to match its speed to the attached serial device upon connection see Change Port Autobaud in the MSS Reference Manual for an explanation of the baud rate negotiation process Autobaud is disabled by default but can be enabled with the following command Figure 4 44 Enabling Autobaud for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 AUTOBAUD ENABLED Figure 4 45 Enabling Autobaud for MSS100 Local gt gt CHANGE AUTOBAUD ENABLED Character Size Parity and Stop Bits The default character size of 8 data bits can be changed to 7 data bits Similarly the default stop bit count of 1 bit can be changed to 2 bits Parity is normally None but can also be Even Mark Odd or Space To change these parameters use the following commands Figure 4 46 Configuring Serial Port Parameters for MSS VIA and MSS4 Local gt gt CHANGE 1 CHARSIZE 7 Local gt gt CHA
69. l port Opening a TCP session to a 300n port will form a raw TCP IP connection to the serial port Use a 200n port when you need Telnet IAC interpretation To specify a connection to a socket use the Telnet command followed by the MSS IP address or resolvable name a space and the desired socket number Figure 5 1 TCP IP Socket Connection for MSS VIA Telnet 192 168 0 10 2001 Interactive Connections Interactive mode refers to entering commands at the Local gt prompt Commands can be used to configure the MSS connect to remote services manipulate a connection or receive feedback Interactive use requires an input device such as a terminal Outbound Connections When logged into the MSS users can make basic outgoing connections using the method described in this section See the MSS Reference Manual on the CD ROM for more information about incoming and outgoing connections Telnet To start an outgoing Telnet session type Telnet at the Local gt prompt followed by either the host s name or its numeric IP address Note If a preferred service has been configured a host name is not required Figure 5 2 Telnet Connection Local gt TELNET 192 168 0 10 Note Initiate outgoing Telnet sessions from the serial ports Incoming Telnet sessions cannot initiate an outgoing Telnet session You can also make a Telnet connection to a specific port number as described in Serial Tunnel Rlogin Rlogin allows a use
70. lnet Rlogin is a protocol that allows users to initiate a TCP IP login session UDP User Datagram Protocol is a connectionless protocol that results in smaller packet headers no session overhead and the ability to send to multiple hosts MSS User Guide Terms About The 1 Introduction to the MSS Family Domain Name Service DNS is a protocol that allows a network nameserver to translate text node names into numeric IP addresses For WINS support the MSS can be configured to announce itself as a WINS node Note MSS products support B node functionality only The MSS also implements basic Simple Network Management Protocol SNMP functionality SNMP commands enable users usually system administrators to get information from and control other nodes on a Local Area Network LAN and respond to queries from other network hosts The MSS allows configuration of one community name with read write access The following terms are used throughout this manual Host A computer attached to the network The term host is generally used to denote interactive computers or computers that people can log into Local Mode The MSS user interface It is used to issue configuration and session management commands and to establish connections When in Local mode users see a Local gt prompt Node Any intelligent device directly connected to the Ethernet network such as a host a printer or a terminal server All nodes h
71. messages are listed in the table below If you cannot find an explanation for your problem try to match it to one of the other errors If you cannot remedy the problem contact your dealer or Lantronix Technical Support Table 6 1 Power up Problems and Error Messages Problem Message The MSS is connected to a power source but there is no LED activity The MSS is unable to complete power up diagnostics The MSS completes its power up and boot procedures but there s no noticeable serial activity The terminal shows a Boot gt prompt rather than a Local gt prompt Error Remedy The unit or its power supply is Contact your dealer or Lantronix Technical damaged Support for a replacement This generally indicates a hardware Note the blinking LED and its color then fault One of the LEDs will be solid contact your dealer or Lantronix Technical red for three seconds followed by Support The MSS will not be operational one second of another color until the fault is fixed Check the terminal setup and the physical connections including the cable pinouts see Pinouts Try another serial device or cable or cycle power on the MSS Reboot the unit When the MSS is running normally the OK LED blinks every two seconds Ensure that the MSS is firmly connected to a functional and properly terminated network node The MSS Ethernet address is located on There is a problem with the serial connection or the
72. mpatible with the MSS VIA please refer to the Lantronix web site http www lantronix com products pc_cards index html Note Changes in firmware revision may affect compatibility Serial Connectors RS 232 RS 485 DB25 Connector The MSS DB25 connector provides a dual RS 232 RS 485 DTE serial port The default serial port settings are 9600 baud 8 bits no parity and 1 stop bit 7 1 MSS User Guide 7 Pinouts Figure 7 2 DB25 Serial Connector RX CTS GND este The dual DB25 port can be used for either an RS 232 connection or an RS 485 connection Do not attempt to connect both interfaces at the same time The MSS VIA drives TX on both interfaces simultaneously but only enables RX on the selected interface For more information see RS 485 Configuration RS 232 DB9 Connector The MSS DB9 connector provides an RS 232 DTE serial port The default serial port settings are 9600 baud 8 bits no parity and 1 stop bit Starting with firmware version 3 6 8 you can change these settings Figure 7 3 DB9 Serial Connector DSR RTS CTS MSS4 Connectors Serial Connectors The MSS4 has four serial ports The MSS4 models have DB9 connectors The following sections show the pin connections of the MSS4 DB9 connectors which provide dual RS 232 RS 485 serial ports RS 485 DB9 Connectors The MSS4 DB9 connector provides an RS 485 serial port MSS User Guide 7 Pinouts Figure 7 4 DB9 RS 485 Serial Connector RS
73. n the login directory itself On the MSS specify the file server name filename and path Figure 8 2 Configuring NetWare Reload Local gt SET PRIVILEGED Password gt SYSTEM not echoed Local gt gt CHANGE ERVER NETWARE LOADHOST fileserver Local gt gt CHANGE ERVER SOFTWARE SYS LOGIN MSSVIAx SYS Local gt gt INITIA E RELOAD MOP The MSSVIAx SYS filename is the only parameter that the MSS needs to reload via MOP Make sure the service characteristic is enabled on the host s Ethernet circuit copy the MSSVIAx SYS file to the MOM LOAD directory and reload the MSS using the Initialize Reload command Note If an error message is displayed indicating an invalid record size on the VAX console the MSSVIAx SYS file was not transferred in binary mode Troubleshooting Flash ROM Updates Protocol Area to Check NetWare Many of the problems that occur when updating the Flash ROM can be solved by completing the following steps Table 8 1 Flash ROM Troubleshooting Ensure the file is in the login directory Since the MSS cannot actually log into the file server it has very limited access to the server directories Check the file and directory permissions Ensure the loadhost name and address are specified correctly and that their case matches that of the filenames on the host system Ensure the file and pathnames are enclosed in quotes to preserve case
74. nd of the cable to the RJ45 Ethernet port on the back of the MSS The MSS autosenses whether the attached Ethernet connection is 10BASE T or 100BASE T 4 Supply power to the MSS a Connect one end of the power cable to the MSS power jack b Connect the power cube end of the power cable to a standard wall outlet When the MSS receives power it begins the boot process The MSS runs through a set of power up diagnostics for approximately five seconds The Power and Link LEDs should remain solid green The Link LED should remain solid green The OK and Serial LEDs should show varying patterns corresponding to the test being run 2 13 MSS User Guide 2 Installation Once the unit is running normally the Power LED should be solidly lit to indicate the unit is ON the Link LED should be solidly lit to indicate a functioning Ethernet connection and the OK LED should blink green once every two seconds 5 Supply power to the serial device 6 Verify that the MSS is working There are a few ways to check a Wait for approximately 30 seconds after powering the unit up If the Power and Link LEDs are solidly lit and the OK LED blinks green once every two seconds the MSS is operating normally b If you have connected a serial terminal to the MSS DB25 port press the Return key You should see several lines of start up messages followed by a Local gt prompt c If an IP address is configured for the MSS ping the MSS from a TCP IP ho
75. ons 2 10 MSS100 Installation 2 11 Components 2 11 Installation Procedure 2 12 MSS100 Specifications 2 14 3 Getting Started 3 15 Privileged User Status 3 15 IP Address Configuration 3 16 Using EZWebCon 3 16 Using a Web Browser 3 16 Using ARP and Ping 3 17 Using a DHCP BOOTP or RARP Reply 3 18 Using the Serial Console 3 18 Incoming Logins 3 19 Login Password 3 19 Incoming TCP IP Logins 3 19 Serial Port Logins 3 20 Remote Console Logins 3 21 Incoming LAT Logins 3 21 Changing the Login Password 3 21 Outbound Connections 3 22 Logout 3 22 4 Configuration 4 1 Overview 4 1 Rebooting the MSS 4 1 Normal Reboot 4 1 Factory Defaults 4 2 Protocol Configuration 4 2 TCP IP Configuration 4 2 SNMP 4 4 IPX NetWare Configuration 4 5 LAT Configuration 4 7 RS 485 Configuration 4 8 Two Wire Mode 4 8 Four Wire Mode 4 9 TXDrive 4 10 Termination 4 10 A Note About RS 422 Networking 4 10 Serial Port Configuration 4 11 Access Mode 4 11 Autostart 4 11 Serial Data 4 12 Baud Rate 4 13 Character Size Parity and Stop Bits 4 13 Flow Control 4 14 Modems and Modem Signaling 4 14 Logouts 4 16 Preferred Host 4 17 Dedicated Host 4 17 802 11 Configuration 4 17 Enabling 802 11 Networking 4 18 802 11 Region 4 18 MAC Address 4 18 Extended Service Set ID ESSID 4 18
76. ons for all addresses between 192 168 0 1 and192 168 0 254 Figure 4 11 IP Security Command Local gt gt CHANGE IPSECURITY 192 168 0 255 DISABLED Single addresses can also be specified See Change IPSecurity in the MSS Reference Manual for more information To view the host table entries enter the Show IPsecurity command To remove an entry use the Delete IPSecurity command followed by the IP address that you want to remove WINS If WINS is enabled the MSS will broadcast a WINS name announcement at boot time and answer broadcast WINS name queries Other hosts can locate the MSS this way The MSS will rebroadcast whenever its IP address or name changes Figure 4 12 Enabling WINS for MSS VIA and MSS4 Local gt gt CHANGE SERVER WINS ENABLED Figure 4 13 Enabling WINS for MSS100 Local gt gt CHANGE WINS ENABLED SNMP The MSS supports the SNMP network protocol which allows hosts on the network to query nodes for counters and network statistics and to change some parameters on those nodes The form of these requests is documented by RFC 1098 The list of items that can be queried and or set and the type of data used such as integer and string are both documented in various Management Information Bases MIBs MIBs cover a variety of things such as counters and IP address resolution tables The MSS supports the following MIBs Table 4 1 Supported MIBS MIB II RFC 121
77. or two wire mode Termination RS 485 connections must be terminated properly in order to work Termination is necessary when using long cable runs although only end nodes should be terminated Figure 4 29 Enabling RS 485 Termination for MSS4 Local gt CHANGE RS485 PORT 2 TERMINATION Figure 4 30 Enabling RS 485 Termination for MSS VIA Local gt CHANGE RS485 TERMINATION Slave devices should be set for automatic termination using the Change 485 Termination TX Auto command A Note About RS 422 Networking The MSS is compatible with RS 422 networks in four wire RS 485 mode Connect the MSS to a single slave device using a swapped cable as shown below and configure the MSS as if you were going to use it for four wire RS 485 networking 4 10 MSS User Guide 4 Configuration Figure 4 31 RS 422 Connection The MSS drives handshaking signals CTS RTS DTR DSR and CD at RS 232 level and listens for those signals at RS 232 level Serial Port Configuration The serial ports are set at the factory for 9600 baud 8 data bits one stop bit and no parity To make port settings take effect type LOGOUT PORT n where n is the port number Some port settings take effect immediately upon entering the command Note The DB25 is Port 1 and the DB9 is Port 2 Port 1 is used in the example commands Access Mode The serial port access mode governs which connections the por
78. ort can be manually logged out or it can be configured to automatically log out when it has been inactive for a pre determined length of time To manually log out of the MSS type Logout at the Local gt prompt or press Ctrl D Figure 4 60 Logging out of the MSS Local gt gt LOGOUT To log out the port after a specified period of inactivity use the Change Port Inactive Logout command This command works in conjunction with Change Server Inactive Timer which defines how long a port must remain idle before it is automatically logged out For example to make the MSS log out the port after two minutes of inactivity use the following commands The inactivity logout timer period can be specified in seconds s or minutes m For example changing 1m in the example to 60s produces the same results Figure 4 61 Enabling Timed Inactivity Logout for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 INACT Local gt gt CHANGE SERVER INACT Figure 4 62 Enabling Timed Inactivity Logout for MSS100 Local gt gt CHANGE Local gt gt CHANGE 4 16 MSS User Guide 4 Configuration Preferred Host A default host for a port can be defined using the Change Port Preferred command The MSS attempts to use the preferred host for connections when no service name is specified in a connection command Figure 4 63 Defining a Preferred Service for MSS VIA and MSS
79. ost cannot load the device server CHANGE SOFTWARE filename Specifies the name of the file to load The MSS will automatically add SYS to the filename you specify Note that all protocols must have a filename specified either the default or set by the user For more information see 8 Updating Software TCP IP users must use the Software option to specify the loadhost the loadfile and their own network address TFTP users can specify a complete path name up to 31 characters if the file is located in a directory other than the default The case of the filename must match that of the filename loaded onto the host computer SHOW SERVER Use this command before and or after issuing other commands to view the current MSS setup FLUSH NVR This command is used to restore the MSS non volatile RAM to its factory default settings It will reset everything that is configurable on the device server including the unit s IP address FLASH This command will force the MSS to download new operational code and reload it into Flash ROM This is necessary when a new version of software is released and you wish to upgrade your unit If the device server cannot download the file the code in Flash ROM will still be usable 6 5 MSS User Guide 6 Troubleshooting Technical Support If you are experiencing an error that is not described in this chapter or if you are unable to fix the error you may Check our online knowledge base at w
80. ou may want to use A so that Autostart will happen as soon as an AT modem command is entered Keep in mind that when you configure an Autostart character you can no longer use lt CR gt to get to the Local gt prompt Figure 4 36 Configuring an Autostart Character for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 AUTOSTART CHARACTER A Figure 4 37 Configuring an Autostart Character for MSS100 Local gt gt CHANGE AUTOSTART CHARACTER A Serial Data Once a connection has been started several different triggers can be used to transmit all accumulated serial data to the host These options are controlled with the Change Port Datasend command The datasend process used by the MSS balances network traffic with latency concerns One kind of trigger can be set by specifying a timeout condition of either the time since the last character was received with the Timeout Idle parameter or the time since the current character burst was started with the Timeout Frame parameter For example to trigger data transmission 150 milliseconds after the current character burst began enter the following command Figure 4 38 Transmitting Serial Data with Trigger Delay for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 DATASEND TIMEOUT FRAME 150 Figure 4 39 Transmitting Serial Data with Trigger Delay for MSS100 Local gt gt CHANGE DATASEND TIMEOUT FRAME 150 The
81. pt to reconnect at preset intervals Ifa host s flow control or other settings block the MSS from sending the MSS will skip it and send the data to the other hosts However the MSS does not keep a list of which hosts were skipped in the past it consults all hosts each time it has data to send When the MSS serial port is logged out all host sessions are disconnected leaving the port idle Enabling Multihost Mode To configure the MSS for a dedicated multihost connection use the Change Port Dedicated command Figure 5 11 Enabling Multihost Mode for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 DEDICATED HOSTLIST Figure 5 12 Enabling Multihost Mode for MSS100 Local gt gt CHANGE DEDICATED HOSTLIST When a dedicated connection is enabled local mode hotkeys for session manipulation are disabled 5 7 MSS User Guide 5 Using the MSS Adding Hosts The host list can include up to 16 host entries in any combination of TCP raw Telnet and Rlogin and UDP addresses Figure 5 13 Adding Entries to the Host Table for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 DEDICATED HOSTLIST Local gt gt HOST ADD TCP 192 168 0 10 T Local gt gt HOST ADD UDP 192 168 0 14 Local gt gt LOGOUT PORT 1 Figure 5 14 Adding Entries to the Host Table for MSS100 Local gt gt CHANGE DEDICATED HOSTLIST Local gt gt HOST ADD TCP 192 168 0 10 T Local gt gt HOST ADD UDP 192 168 0 14
82. r so that the MSS can start a new IBSS if needed When the channel is set to Any the MSS can only join an existing IBSS WEP Some 802 11 cards can be set with a WEP key which will encrypt any data you transmit through wireless communication To enable WEP enter the following command Figure 4 74 Enabling WEP Local gt gt CHANGE 80211 WEP ENABLED Local gt gt CHANGE 80211 RESET Setting the WEP Key and Index Number When WEP is enabled and a WEP key is set the MSS will only connect to an AP in infrastructure mode or communicate with other Ad Hoc peers in Ad Hoc mode that have been programmed with the same WEP key as the MSS For a key to match both the key data and the index number must be identical 4 20 MSS User Guide 4 Configuration Once WEP is enabled you must enter a WEP key if you have not previously done so The key can be either 40 bits or 128 bits To enter a WEP key use the Change 80211 WEP Key command Each key is also assigned an index number which is an integer between 1 and 4 To enter the index number use the Change 80211 WEP Index command Figure 4 75 Setting the WEP Key and Index Number Local gt gt CHANGE 80211 WEP KEY 26 e4 97 db 1lf Local gt gt CHANGE 80211 WEP INDEX 3 Local gt gt CHANGE 80211 RESET Encrypted Traffic Once WEP is enabled the MSS will allow reception of both encrypted and unencrypted traffi
83. r to log into a remote host as if he or she were a local user In the example below shark is the remote host and lola is the username Unless the username is password protected the user will be logged in normally Figure 5 3 Connecting with Rlogin Local gt RLOGIN shark lola MSS User Guide 5 Using the MSS Note Because Rlogin can bypass the normal password login sequence and is therefore a potential security problem it may be disabled on some hosts It is disabled by default on the MSS Session Control When a user makes a connection to a service on the network via Telnet or Rlogin a session is created A user can have several connections to various services at once although only one is displayed on the screen at a time Each separate connection is a session The following section explains commands used to manipulate these sessions Break Key and Local Switch The Break key allows users to leave an active session and return to the MSS Local gt prompt without disconnecting sessions By default the MSS handles the Break key locally Users can change whether the Break key is processed by the MSS Local processed by the remote host Remote or ignored None using the Change Port Break command Figure 5 4 Changing the Break Key for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 BREAK REMOTE Figure 5 5 Changing the Break Key for MSS100 Local gt gt CHANGE BREAK REMOTE If your terminal
84. ranty This warranty is voided if the customer uses the product in an unauthorized or improper way or in an environment for which it was not designed Lantronix warrants the media containing its software product to be free from defects and warrants that the software will operate substantially according to Lantronix specifications for a period of 60 DAYS after the date of shipment The customer will ship defective media to Lantronix Lantronix will ship the replacement media to the customer In no event will Lantronix be responsible to the user in contract in tort including negligence strict liability or otherwise for any special indirect incidental or consequential damage or loss of equipment plant or power system cost of capital loss of profits or revenues cost of replacement power additional expenses in the use of existing software hardware equipment or facilities or claims against the user by its employees or customers resulting from the use of the information recommendations descriptions and safety notations supplied by Lantronix Lantronix liability is limited at its election to Refund of buyer s purchase price for such affected products without interest Repair or replacement of such products provided that the buyer follows the above procedures There are no understandings agreements representations or warranties expressed or implied including warranties of merchantability or fitness for a particular purpose
85. re shows an MSS100 front panel Figure 2 10 MSS100 Front Panel DB25 Serial Port The MSS rear panel has an RJ45 Ethernet connector a reset button and a power connector The following figure shows an MSS100 rear panel Figure 2 11 MSS100 Rear Panel 10 100 BaseT regulated 5V DC Ethernet Port Power Connector Reset Button Note When the reset button is pressed and held during the power up and boot procedures for at least 3 seconds the MSS100 returns to its factory default configuration Five LEDs are located on the top of the unit The following table explains their functions MSS User Guide 2 Installation Table 2 3 MSS100 LEDs Function Glows green when power is supplied to the MSS Glows green while the MSS is connected properly to a 10BASE T or 100BASE T Ethernet network Glows green to indicate a 100 Mb Ethernet connection Blinks yellow green or red to indicate MSS activity Serial Blinks yellow green or red to indicate MSS activity Note Although a red LED during boot mode usually signals an error red LED patterns are part of the normal operation of the MSS and are not necessarily indicative of errors or dangerous operation Installation Procedure The MSS can be used to network enable serial devices as shown in the figure below Any device with a serial port can be connected to the network via an MSS Figure 2 12 MSS Network Layout DIRECT TCP IP OR REDIRECTOR CONFIGURATION
86. rk socket port connections ports 2001 2004 and 3001 3004 Serial Port Logins Users can connect a terminal directly to a serial port log in and use the command line interface to configure the unit Remote Console Logins TCP IP users can make a Telnet connection to the remote console port port 7000 Consider the following points before logging into and configuring the MSS The MSS IP address must be configured before any TCP IP functionality is available see IP Address Configuration Connecting a terminal to a serial port or logging into the remote console port does not automatically create privileged user status You must use the Set Privileged command to configure the unit see Privileged User Status Only one person at a time may be logged into the remote console port port 7000 This reduces the possibility of several people simultaneously attempting to configure the MSS Remote console logins cannot be disabled The system manager will always be able to access the unit Privileged User Status Many MSS commands require privileged user Superuser status For example only the privileged user can change server wide or port specific settings To become the privileged user enter the following command The default privileged password is system Figure 3 1 Set Privileged Command Local gt SET PRIVILEGED Note Default passwords pose a security risk and should be changed as soon as possible This
87. rmation to boot or the network or flash boot has failed it will print a message to the console and wait ten seconds for serial port activity If it does not detect serial port activity it will continue booting provided the flash is good However if the user presses a key during that ten second time period the MSS will display the Boot gt prompt Note If you see the message Will attempt another download in x minutes press any key for the Boot gt prompt A series of commands called Boot Configuration Program BCP commands can be entered at the Boot gt prompt to configure the MSS These commands are a subset of the entire MSS command set For example a typical TCP IP configuration might use the following commands Figure 6 1 Command Examples Boot gt CHANGE IPADDRESS 192 168 0 10 Boot gt CHANGE SOFTWARE tftpboot MSSVIAx SYS Boot gt CHANGE LOADHOST 192 168 0 16 Boot gt CHANGE ECONDARY 192 168 0 10 Boot gt FLASH Initialization begins in 5 seconds These commands set the device server s address the software loadfile and the loadhost s IP address as well as that of a backup loadhost The device server then reboots using the Flash command and will attempt to load the file MSSVIAx SYS MSS4 SYS or MSS100 SYS from the host at 192 168 0 16 HELP Displays a one page summary of available commands and what they do INIT 451 Reboots the MSS after it has been configured If the MSS can find and load the sp
88. ry reboot restores default configurations for the MSS removing any custom settings Normal Reboot You should use a normal reboot if you have configured custom settings that will not take effect until after the MSS has rebooted Reboot the MSS VIA if you add or swap PC cards as PC cards are only scanned at boot time To reboot the MSS perform one of the following Atthe Local gt prompt enter the Initialize Delay 0 command Atthe Boot gt prompt enter the Initialize 451 command See Entering Commands at the Boot Prompt on page 6 18 for more details Remove the power cord from the MSS then plug it back in 4 1 MSS User Guide 4 Configuration Factory Defaults You should only restore factory default settings if you want to remove all custom configuration from the MSS including password settings To restore factory settings to the MSS From the Local gt prompt enter the Initialize Factory command From the Boot gt prompt enter the Flush NVR command Press and hold the reset button down while cycling power to the unit You must hold the reset button for at least 3 seconds after power is restored Protocol Configuration TCP IP Configuration Note Instructions for initially assigning the MSS IP address are located in IP Address Configuration IP Address The IP address can be changed with the Change Server IPAddress command Figure 4 1 Changing the IP Address for MSS VIA and MSS4 Local gt gt C
89. s To enable DHCP use the Change Server DHCP Enabled command Using the Serial Console If the MSS encounters a problem with the Ethernet network during boot up it sends an alert message to the console and wait ten seconds to detect serial port activity before attempting to finish booting If you press a key during that time period the MSS displays the Boot gt prompt at which you can enter the Change IPaddress command to set the unit s IP address It is recommended to let the MSS complete its normal boot process Note For more information on Boot Configuration Program BCP commands see 6 Troubleshooting Once the MSS completes its boot process connect a terminal to the serial console and press the Return key You will see the Local gt prompt Become the privileged user and enter the Change Server IPaddress command Figure 3 8 Entering the IP Address at the Local Prompt for MSS VIA and MSS4 Local gt SET PRIVILEGED Password gt system not echoed Local gt gt CHANGE SERVER IPADDRESS 192 168 0 10 Figure 3 9 Entering the IP Address at the Local Prompt for MSS100 Local gt SET PRIVILEGED Password gt system not echoed Local gt gt CHANGE IPADDRESS 192 168 0 10 3 18 MSS User Guide 3 Getting Started Incoming Logins Incoming Telnet logins are enabled by default This behavior can be changed with the Change Server Incoming
90. set up of the serial device A rapidly blinking OK LED may signal boot failure The MSS is not connected properly to the Ethernet The MSS Ethernet address is the bottom of the unit Use the Change invalid Hardware command to set the correct address then reboot Init Noboot command was See Entering Commands at the Boot entered Prompt MSS User Guide 6 Troubleshooting Problem Message The MSS passes power If the OK LED blinks rapidly the up diagnostics but Flash ROM code may be corrupt _ Reboot the unit If you get the same attempts to download If you did not request a TFTP boot Message you will need to reload Flash new Flash ROM code the flash ROM code is corrupt The ROM See Reloading Software from a network host unit will remain in boot mode DHCP Troubleshooting Table 6 2 DHCP Troubleshooting Explanation Use the Change Server DHCP Enabled command If you manually enter an IP address DHCP is automatically disabled Use the Change DHCP Enabled command If you manually enter an IP address DHCP is automatically disabled Area to Check DHCP is enabled on the MSS4 and MSS VIA DHCP is enabled on the MSS100 Make sure the DHCP server is operational The MSS gets its IP address from the DHCP server Check to see that the DHCP server is on and is functioning correctly Refer to the DHCP Manager on your DHCP server for information about addresses in
91. ss or resolvable Hostname into the browser s URL Location field Figure 3 12 Sample Web Browser Login File Edit View Favorites Tools Help Q bai gt x E A J Search Sie Fever Address a http 192 168 0 10 SERVER CONFIGURAT X Server Name MS Boot Code Version V1 Firmware Version Ver BAQQOA lasso yt 3 19 MSS User Guide 3 Getting Started Once you have connected to the MSS you will see the Lantronix Web Manager interface Use the left hand menu to navigate to subpages where you can configure important settings as well as view statistics and other device server information Figure 3 13 Web Manager Interface EE l File Edit yiew Favorites Tools ba a Q ex Q gt x Ble A ps L Search 5 Favorites A Meda O 2 te A 33 SORES aeres http 192 168 0 10 Bo u gt SERVER CONFIGURATION Server Name MSS_54FF2C Boot Code Version V1 1 May 30 2001 Firmware Version Version V3 6 9 030114 MSS4 Uptime 0 01 13 Hardware Address 00 80 a3 54 F 2c ICPAP IP Address 192 168 0 10 Server Properties Subnet Mask 255 255 255 0 Port Properties 802 11 Properties Tech Support Home Select from the menu above to modify server configuration Elore H i internet EZWebCon Login and Configuration EZWebCon enables users on TCP IP networks to log into and configure the MSS The program offers a simple interface that prompts the user for the information necessary to configur
92. st For more instructions see the IP Address Configuration section in Getting Started Figure 2 14 Pinging the MSS ping XXX XXX XXX XXX MSS100 Specifications Power power cube adaptor Adapter Input 110 VAC US 100 240 VAC International Output 5 VDC Current 74 amps MSS100 power input requirement 5 VDC regulated Temperature Note Rapid temperature changes may affect operation Do not operate near heating or cooling devices or areas that open to the outdoors Operating range 5 to 50 C 41 to 122 F Storage range 40 to 66 C 40 to 151 F Max temp change 20 C 36 F per hour Humidity Operating range 10 to 90 non condensing 40 to 60 recommended Storage range 10 to 90 non condensing Altitude Note For operations above 2 4 km 8 000 ft decrease the operating temperature rating by 1 8 C for each 1 000 m 1 F for each 1 000 ft Operating 2 4 km 8 000 ft Storage 9 1 km 30 000 ft 2 14 3 Getting Started This chapter covers all of the steps needed to get the MSS online and working There are three basic methods used to log into the MSS and begin configuration Incoming Remote Logins EZWebCon is the preferred configuration method Users can also log into the MSS internal HTTP server via a standard web browser After the initial configuration the MSS can be accessed remotely across TCP IP networks through Telnet connections Incoming connections also include netwo
93. t http www lantronix com Note Any time you insert a PC card into the MSS PC card slot you must reboot the MSS so it can identify and initialize the card Reboot the MSS by removing and replacing the power cord Do not remove the PC card while the MSS is powered on 3 Supply power to the MSS a b c Connect the barrel jack end of the power cable to the MSS power jack Connect the power cube end of the power cable to a standard wall outlet When the MSS receives power it will begin a three step boot process 2 4 MSS User Guide 2 Installation d The MSS runs through a set of power up diagnostics for approximately five seconds The OK and Serial LEDs should show varying patterns corresponding to the test being run Note The Link LED should remain solid green once the unit has completed booting assuming there is a valid connection to an Ethernet network e The MSS tries to obtain TCP IP configuration information via DHCP BOOTP and or RARP This procedure takes approximately 40 seconds if no hosts answer the request Boot messages will be sent to the console port during the boot process The OK LED will blink green approximately three times per second and occasionally yellow as packets are sent and received Note For more information on BOOTP RARP or DHCP refer to your operating system s documentation f The MSS determines if the code in the Flash ROMs is valid If so it loads the code and begins norm
94. t Forward Switch commands define keys used to switch sessions without returning to local mode Backward and forward switch keys must be explicitly defined Figure 5 8 Defining Switches for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 BACKWARD SWITCH B Local gt gt CHANGE PORT 1 FORWARD SWITCH F Figure 5 9 Defining Switches for MSS100 Local gt gt CHANGE BACKWARD SWITCH B Local gt gt CHANGE FORWARD SWITCH F Notes To specify a control character precede it with a carat or enter as a hex digit such as 02 The MSS intercepts and processes switch keys it does not pass them to the remote host Disconnect and Resume Users need a method of controlling and disconnecting sessions from local mode For example if a session on a remote host freezes or suspends while executing code the user can exit the session using the Break key then terminate the connection by entering the Disconnect command at the Local gt prompt A user may resume a session after returning to local mode by entering the Resume command Both commands can affect any active sessions not just the current session Session Limits The number of active session a user can have on the MSS is limited by three factors available device server memory resources a server wide limit and a port specific limit The absolute maximum number of sessions for the MSS is eight To reduce the limit further enter the Change Server Session Limit command
95. t can accept Local access permits local logins on the serial port Remote access allows network hosts to connect to the MSS serial port Dynamic access the default allows both local and remote access To change the serial port s access mode enter the Change Port Access command Figure 4 32 Changing Serial Port Access Mode for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 ACCESS LOCAL Figure 4 33 Changing Serial Port Access Mode for MSS100 Local gt gt CHANGE ACCESS LOCAL Autostart Normally the serial port will wait for a carriage return before starting a connection When the Autostart option is enabled the MSS will establish a connection as soon as it boots or if modem control is enabled as soon as the DSR signal is asserted To control this feature enter the Change Port Autostart command Figure 4 34 Enabling Autostart for MSS VIA and MSS4 Local gt gt CHANGE PORT 1 AUTOSTART ENABLED Figure 4 35 Enabling Autostart for MSS100 Local gt gt CHANGE AUTOSTART ENABLED A port set for Autostart will never be idle and therefore will not be available for network connections If incoming network connections are desired Autostart should remain disabled the default MSS User Guide 4 Configuration Autostart can also be triggered by a specific input character There is no default Autostart character you will have to configure one For example when using Modem Emulation Mode y
96. t this number will need to be changed Note If you do change the internal network number reboot the MSS Loadhost A loadhost is a NetWare fileserver from which the MSS will try to load code when the Initialize Reload command is entered If the software loadfile or loadhost address changes you will have to change the configured parameters for the next reboot For the following example the loadhost is phred and the name of the loadfile is MSS100 SYS Figure 4 15 Changing the NetWare Loadhost Local 2 gt gt CHANGE NETWARE LOADHOST phred Local 2 gt gt CHANGE SOFTWARE sys login MSS100 SYS 4 6 MSS User Guide 4 Configuration LAT Configuration Note The following section on LAT configuration applies to the MSS100 only Three LAT parameters can be configured for the MSS the device server s identification string its service group list and its internal circuit timer Server Identification The MSS has a default name that it uses when announcing itself to the LAT network mss_XxXxxxx where xxxxxx represents the last six characters of its hardware address Users can change the name Users can also configure a more descriptive identification string Figure 4 16 LAT Name and Identification Local gt CHANGE NAME Bio5 Local gt CHANGE LAT IDENTIFICATION Biolab 2 Service Groups A service is any resource on the network that can be ac
97. tOutSpeed PortOutSpeed also changes PortlnSpeed PortInFlowType also changes PortOutFlowType PortOutFlowType also changes PortInFlowType AsyncPortBits AsyncPortStopBits AsyncPortParity AsyncPortAutobaud Character MIB PortName PortReset PortInFlowType PortOutFlowType PortSessionMaximum Sessionkill IPX NetWare Configuration Note The following section on Netware applies to the MSS100 only Four NetWare settings can be configured routing and encapsulation parameters the internal network number to use for internal routing and the NetWare loadhost to use at boot time Routing and Encapsulation The first layer of an IPX Ethernet packet is the frame type It includes routing information By default the MSS is configured to handle packets of all four NetWare frame types If more than one frame type is in use on the LAN the MSS will advertise itself as a router to the network using its internal network number This behavior allows nodes and fileservers to access the MSS regardless of the frame type being used 4 5 MSS User Guide 4 Configuration The MSS can be restricted to a single frame format in which case it will not do internal routing Two commands control this behavior Change NetWare Routing and Change NetWare Encapsulation Change NetWare Routing enables or disables the use of the internal network number By default internal routing is enabled Note If two or more frame types are enabled intern
98. upgrade the MSS operating code to support additional features as newer code becomes available Also you can configure the MSS to request a downloaded configuration file at boot time Security The MSS includes several configurable security features Automatic session logouts when a port is disconnected or a device is turned off Password protection for privileges ports maintenance commands and the remote console An IP security table which allows the system administrator manager to restrict incoming and outgoing TCP IP connections to certain ports and hosts This allows managers to restrict MSS access to a particular local network segment or host Diagnostics Power up and interactive diagnostics help system managers troubleshoot network and serial line problems SDK Support The MSS supports the Lantronix Software Developer Kit SDK which allows users to customize the MSS and add functionality Note The SDK does not allow users to configure custom PC card support A network protocol is a method of communicating over Ethernet wired or wireless Each protocol specifies a certain arrangement of data in the Ethernet packets and provides different services for its users The MSS supports TCP IP protocols including Telnet Rlogin UDP DNS and WINS The Telnet terminal protocol supported on most UNIX systems is an easy to use interface that creates terminal connections to any network host supporting Te
99. ww lantronix com support com E mail us at support lantronix com Call us at 800 422 7044 Domestic 949 453 7198 International 949 450 7226 Fax Our phone lines are open from 6 00AM 5 30 PM Pacific Time Monday through Friday excluding holidays Firmware downloads FAQs and the most up to date documentation are available at www lantronix com support Technical Support Europe Middle East and Africa Phone 49 0 89 31787 817 E mail eu_techsupp lantronix com When you report a problem please provide the following information Your name and your company name address and phone number Lantronix MSS model number Lantronix MSS serial number Software version use the Show Server command to display Network configuration including the information from a Netstat command Description of the problem Debug report stack dump if applicable Status of the unit when the problem occurred please try to include information on user and network activity at the time of the problem CA JEE SEE SEE SEE O 6 6 7 Pinouts Ethernet Connector Figure 7 1 RJ45 Ethernet Connector Pinout MSS VIA Connectors PC Card Slot The MSS VIA PC card slot accepts Type I II PC cards The MSS VIA supports 802 11 wireless cards analog modems 16550 UART types and flash memory PCMCIA or compact flash with PCMCIA adaptor For the most current information on which PC card technologies are supported and which cards are co
100. x temp change 20 C 36 F per hour Humidity Operating range 10 to 90 non condensing 40 to 60 recommended Storage range 10 to 90 non condensing Altitude Note For operations above 2 4 km 8 000 ft decrease the operating temperature rating by 1 8 C for each 1 000 m 1 F for each 1 000 ft Operating 2 4 km 8 000 ft Storage 9 1 km 30 000 ft MSS User Guide 2 Installation MSS4 Installation MSS4 Components The following section discusses the specific components for the MSS4 D model The MSS4 D front panels have four DB9 serial port connectors and an RJ45 Ethernet connector Figure 2 7 MSS4 Front Panel O I Serian 10 100BaseT E z Serial2 Serial 1 Serial 2 Serial 3 Serial 4 Serial3 Console Serial4 o El 0 Boo Boo Eo RJ45 DB9 Serial DB9 Serial Ports Ethernet Console Port Port All models include a reset button and two power connectors The following figure shows an MSS side panel Figure 2 8 MSS4 Side Panel 9 30VDC o soy Reset Power Button Connector Screw Terminal Blocks LEDs are located on the front panel of the unit MSS4 units have four LEDs that indicate serial activity for each serial port and two status LEDs The following tables explains the function of the LEDs 2 7 MSS User Guide 2 Installation Table 2 2 MSS4 LEDs Function Blinks green to indicate MSS serial activity Blinks yellow green or red to indicate MSS activity

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