Manuale d’uso / di manutenzione del prodotto MSS4 del fabbricante Lantronix
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Part Number 900-328 Rev. A 1/04 MSS User Guide.
i Copyright & Trademark © 2004, Lantronix. All rights reserved. No par t of the contents of this book may b e transmitted or reproduced in any form or by any means without the written permissi on of Lantronix. Printed in the United States of America.
ii Disclaimer & Revisions Operation of this equipment in a residential area is likel y 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.
iii Contents Copyright & Trademark ________________________________________________ i Disclaimer & Revisions _______________________________________________ ii Contents _______________________.
iv Remote Console Logins _________________________________________ 3-21 Incoming LAT Logins ___________________________________________ 3-21 Changing the Login Password________________________________.
v Extended Service Set ID (ESSID) __________________________________ 4-18 Network Mode _________________________________________________ 4-18 Channel___________________________________________________.
vi MSS VIA Connectors_______________________________________________ 7-18 PC Card Slot __________________________________________________ 7-18 Serial Connectors _______________________________________.
1-1 The Lantronix MSS family of Device Servers allows you to netwo rk-enable a variety of serial devices that were not originally de signed to be networked: medical d evices, retail point of sale terminals, modems, indust rial machinery, and more.
MSS User Guide 1: Introduction to the MSS Family 1-2 Remote Configuration The MSS can be logged into and remotely configured via a network login, a Telnet login to the remote console port, EZWeb Con, or a web browser connection to the MSS’ internal HTTP server.
MSS User Guide 1: Introduction to the MSS Family 1-3 Domain Name Service (DNS) is a proto col that allows a network nameserver to translate text node names into numeric I P addresses. For WINS support, the MSS can be configured to announ ce itself as a WINS node.
MSS User Guide 1: Introduction to the MSS Family 1-4 The remaining chapters includ e 6:Troubleshooting , 7:Pinouts , and 8:Updating Software . Read them as necessary. The MSS Reference Manu al , located on the CD-ROM in PDF format, provides t he full MSS family command set as well as additional configuration info rmation.
2-1 2 2 : : I I n n s s t t a a l l l l a a t t i i o o n n This chapter covers the installation of t he MSS-VIA, MSS4, and MSS100 in a network. Basic knowledge of networking installati on is assumed.
MSS User Guide 2: Installation 2-2 Figure 2-2. MSS-VIA Rear Panel Five LEDs are located on the top of the unit. The table below explains their funct ions. Table 2-1: MSS-VIA LEDs LED Function Serial Blinks green to indicate serial activit y. OK Blinks green or orange/ yellow to indicate network activit y.
MSS User Guide 2: Installation 2-3 Installation Procedure The MSS-VIA can be used to network-enable serial devices in eith er a wired or a wireless network, as shown in the following figures. Figure 2-3: Example Wired Net work Layout Figure 2-4: Example Wireless Net work Layout The MSS should be positioned close to the device it will be servi cing.
MSS User Guide 2: Installation 2-4 The following diagram sho ws a properly installed MS S-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 1. Connect the MSS to a serial device.
MSS User Guide 2: Installation 2-5 d) The MSS runs through a set of power-up diagnostics for approximately five seconds. The OK and Serial LEDs should sho w varying patterns corresponding to the test being run.
MSS User Guide 2: Installation 2-6 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 oper ation.
MSS User Guide 2: Installation 2-7 MSS4 Installation MSS4 Components The following section discusses the specific components for the M SS4-D model. The MSS4-D front panels have four DB9 se ri al port connectors and an RJ45 Ethe rnet connecto r. Figure 2-7: MSS4 Front Panel All models include a reset button and two powe r connectors.
MSS User Guide 2: Installation 2-8 Table 2-2: MSS4 LEDs LED Function Serial (1-4) Blinks green to indicate MSS serial activit y. OK Blinks yellow, green, or red to indicate MSS activity. Link Glows green or yellow to indicate a wired Ethernet connection.
MSS User Guide 2: Installation 2-9 2. Connect the MSS to the network. Connect one end o f a Category 5 Ethernet cable to the Ethernet network. Connect the other end of the cable to the RJ45 Ethern et port on the front of the MSS. 3. Supply power to the MSS.
MSS User Guide 2: Installation 2-10 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 oper ation.
MSS User Guide 2: Installation 2-11 MSS100 Installation Components The MSS100 front panel has a male DB2 5 serial connector. The followin g figure shows an MSS100 front panel. Figure 2-10: MSS100 Front Panel The MSS rear panel has an RJ45 Ethernet connector, a reset button, and a po wer connector.
MSS User Guide 2: Installation 2-12 Table 2-3: MSS100 LEDs LED Function Power Glows green when power is supplied to the MSS. Link Glows green while the MSS is connected properly to a 10B ASE-T or 100BASE-T Ethernet network. 100 Glows green to indic ate a 100 Mb Ethernet connection.
MSS User Guide 2: Installation 2-13 Figure 2-13: MSS Connected to Serial Dev ice and Ethernet 1. Select a location. The MSS should be positioned close to the device it will be servi cing. Since powering down the unit will terminate any active se ssions, it may be desirable to place the device server in a location se cure from user access.
MSS User Guide 2: Installation 2-14 Once the unit is running normally, the Po wer 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 blin k green once every two second s.
3-15 3 3 : : G G e e t t t t i i n n g g S S t t a a r r t t e e d d This chapter covers all of the steps ne eded to get the MSS online and working. There are three basic methods used to log into the MSS and beg in configuration. Incoming (Remote) Logins: EZWebCon i s the preferred conf iguration method.
MSS User Guide 3: Getting Started 3-16 The privileged password can be changed with the Ch ange Server Privpass co mmand. Specify a new password of up to six alphanum eric characters.
MSS User Guide 3: Getting Started 3-17 Using ARP and Ping The ARP/ping method is available under UNIX, Wind ows 95/98/ME, Windows NT, Windows 2000, and Windows XP. If the MSS is connected to the L AN but has no IP address, it sets its address from the first directed IP packet it receives.
MSS User Guide 3: Getting Started 3-18 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_>' prompt for assistance. Enter Username> gopher Local> SET PRIVILEGED Password> system (not echoed) Local>> CHANGE IPADDRESS 192.
MSS User Guide 3: Getting Started 3-19 Incoming Logins Incoming Telnet logins are enabled by default. This b ehavior can be changed wi th the Change Server Incoming command and one of the followin g parameters: Telnet Enables Telnet logins None Disables Telnet logins For security reasons, you may wish to disable incoming login s.
MSS User Guide 3: Getting Started 3-20 Once you have connected to the MSS, you will see the Lantronix Web M anager interface. Use the left-hand menu to navigate to s ubpages whe re you can configure import ant settings as well as view statistics and other devi ce server information.
MSS User Guide 3: Getting Started 3-21 Remote Console Logins The MSS enables users to configure the devic e server via a single Telnet conne ction to the remote console port, design ated as port 7000. Connections to the con sole port cannot be disabled.
MSS User Guide 3: Getting Started 3-22 Outbound Connections When logged into the MSS, users can make b asic outgoing con nections using the methods described in this se ction. See the MSS Reference Manual on the CD-ROM for more information about incoming and ou tgoing connections.
4-1 4 4 : : C C o o n n f f i i g g u u r r a a t t i i o o n n Overview Certain parameters must be co nfigured before the MSS can function on the net work. Although many users will prefer to use the EZWebC on graphical user interfa ce, this chapter explains how to configure t he M SS via the command line interface.
MSS User Guide 4: Configuration 4-2 Factory Defaults You should only restore factory default setti ngs if you want to remove all custom configuration from the MSS, including password settings. To restore factory settings to the MSS: From the Local> prompt, enter the Initialize Factory command.
MSS User Guide 4: Configuration 4-3 The MSS can be told which hosts are the gatew ays for the local net work. If no gateway is specified, the MSS will listen to network br oadcasts from gateways to decide which hosts are acting as gateways. The command below te lls the MSS which h ost is the preferred gateway.
MSS User Guide 4: Configuration 4-4 IP Security IP security allows the system administrator to restrict incoming and outgoin g TCP/IP sessions and access to the serial port. C onnection s are allowed or denied based upon the source IP address (for incomi ng connections) or the destinatio n IP address (for outgoing connections).
MSS User Guide 4: Configuration 4-5 The MSS will respond to querie s 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. Tra ps are sent to a host when certain events occur on the MSS.
MSS User Guide 4: Configuration 4-6 The MSS can be restricted to a single frame format, in which case it will not do internal routing. Two commands control this b ehavior: Change NetWare Routing and Change NetWare Encapsula tion . Change NetWare Routing enables o r disables the use of the internal networ k number.
MSS User Guide 4: Configuration 4-7 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 se rver’s identification string, its service group list, and its internal circuit tim er.
MSS User Guide 4: Configuration 4-8 RS-485 Configuration Note: This section applies to MSS m odels MSS-VIA and MSS4 only. The RS-485 standard all ows a serial co nnection to be shared like a "party line." As many as 32 devices can share the multidrop netw ork.
MSS User Guide 4: Configuration 4-9 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 4 800 baud operation, the timing delay is double d.
MSS User Guide 4: Configuration 4-10 TXDrive The MSS-VIA can be configured to always dr ive the TX (tran smit) signal, or tri-state (transmit, receive, or ignore) when not actively transmi tting. The Change RS485 TXDriv e command takes one of two param eters.
MSS User Guide 4: Configuration 4-11 Figure 4-31: RS-422 Connection The MSS drives handsha king signals (CTS, RT S, DTR, DSR, and CD) at RS-23 2 level, and listens for those signal s 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.
MSS User Guide 4: Configuration 4-12 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 you may want to use A so that Autostart will happen as soon as an AT modem command is entered.
MSS User Guide 4: Configuration 4-13 The examples in Figure 4-40and Figu re 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] Datas end command is described in the MSS Reference Manual .
MSS User Guide 4: Configuration 4-14 Flow Control Note: RTS/CTS Flow Control is not available in RS -485 mode. Both RTS/CTS (hardware) and XON/XOFF (so ftware) flow control method s can be used on the MSS. RTS/CTS controls data flow by sending seri al port signals between two connected devices.
MSS User Guide 4: Configuration 4-15 Modem Control If a connection has ended, the MSS sho uld 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 connectio n attempts.
MSS User Guide 4: Configuration 4-16 Figure 4-57: Enabling DSRLogout for MSS100 Local>> CHANGE DSRLOGOUT ENABLED DTRWait Note: DTRWait is not available in RS-48 5 mode. Spurious characters from the modem may be interpreted as a u ser login, which could cause the port to be unavailable for connection s.
MSS User Guide 4: Configuration 4-17 Preferred Host A default host for a port can be defined using the Ch ange Port Preferred command. The MSS attempts to use the preferred host for connections when n o service name is specified in a connection command.
MSS User Guide 4: Configuration 4-18 AP Access Point, a device that relays comm unications between one or more wireless devices and possibly other devices on a netwo rk. APs are usuall y connected to a physical network. Note: If using an AP and WEP is not e nabled, set the AP to accept Open System Authentication.
MSS User Guide 4: Configuration 4-19 correct for the United States; users in ot her countries shoul d change it to a value appropriate for their area before attempting 802.
MSS User Guide 4: Configuration 4-20 Network Mode There are two types of 802.11 networks: Ad-Hoc and infrastructure. In an Ad-Hoc network, devices communicate directly with one a nother on a peer-to-p eer basis.
MSS User Guide 4: Configuration 4-21 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 num ber, which is an integer bet ween 1 and 4.
MSS User Guide 4: Configuration 4-22 A properly installed modem card will be treated li ke an additional MSS serial port . If only one card is installed, it will always appear as Po rt 5. The Show Port and Logout Port commands will resp ond appropriately to the modem card ports.
5-1 5 5 : : U U s s i i n n g g t t h h e e M M S S S S This chapter explains how to use the MSS once it is running . Incoming Connections (host-initiated connections) includ es sock et connections, usi ng host applications, and using the code examples included o n the MSS distribution CD-ROM.
MSS User Guide 5: Using the MSS 5-2 TCP/IP Socket Connections Note: TCP/IP socket connections applie s to MSS-VIA only. The MSS supports TCP/IP socket connection s 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 rea ch the DB9 serial port).
MSS User Guide 5: Using the MSS 5-3 Note: Because Rl ogin can bypass the norm al password/login sequen ce and is therefore a potential security problem, it m ay be disabl ed on some hosts. It is disabled by default on the MSS. Session Control When a user makes a con nection to a service on the network (via Telnet or Rlo gin), a session is cre ated.
MSS User Guide 5: Using the MSS 5-4 The Change Port Back ward Switch and Change Port For ward Switch commands define keys used to switch sessions without returning to local mode.
MSS User Guide 5: Using the MSS 5-5 Show IPsecurity This command shows the current TCP/IP secu rity table, if one exists. Addresse s 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 se rial port.
MSS User Guide 5: Using the MSS 5-6 Figure 5-10: Back-to-Bac k MSS Connections TCP Configuration Assuming the MSS serial port parameters have be en configured properly, the device servers are configured as follows for MSS-VIA and MSS4: MSS_A Local>> CHANGE PORT 1 DEDICATED TCP 192.
MSS User Guide 5: Using the MSS 5-7 Setting up dedicated hosts ensures that the units will always talk to each other. Enabling Autostart for both units enables one MS S to s end data to the other MSS without having to wait for a serial carriage return to sta rt the session.
MSS User Guide 5: Using the MSS 5-8 Adding Hosts The host list can include up to 16 host entries in any combi nation of TCP (raw, Telnet, and Rlogin) and UDP addresses. Figure 5-13: Adding Entries to the Ho st Table for MSS-VIA and MSS4 Local>> CHANGE PORT 1 DEDICATED HOSTLIST Local>> HOST ADD TCP 192.
MSS User Guide 5: Using the MSS 5-9 Figure 5-17. Enabling Modem Mode for MSS100 Local>> CHANGE MODEM EMULATION ENABLED Local>> CHANGE AUTOSTART CHARACTER "A" As soon as someone types an AT command, the MSS will enter modem mode and begin processing the AT commands.
MSS User Guide 5: Using the MSS 5-10 Wiring Requirements Serial signals work different ly when the M SS 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 Comm ands ).
6-1 This chapter discusses ho w you can diagnose and fix erro rs quickly without having to contact a dealer or Lantronix. It helps to co nnect a terminal to the console port while diagnosing an error to view summary messages th at may be displayed.
MSS User Guide 6: Troubleshooting 6-2 Problem/Message Error Remedy If the OK LED blinks rapidly, the Flash ROM code may be corrupt. The MSS passes power- up diagnostics, but attempts to download new Flash ROM code from a network host. If you did not request a TFTP boot, the flash ROM code is corrupt.
MSS User Guide 6: Troubleshooting 6-3 RARP Troubleshooting Table 6-4. RARP Troubleshooting Area to Check Explanation The MSS name and hardwar e address in the host's /etc/ethers file The MSS name and hardware addr ess must be in this file for the host to answer a RARP request.
MSS User Guide 6: Troubleshooting 6-4 The modem should be configured to answer the p hone if incoming connections are to be supported. Generally this is do ne with the ats0=1 command. The modem should not be configured to answe r the phone unless the MSS asserts DTR.
MSS User Guide 6: Troubleshooting 6-5 CHANGE DHCP {Enabled, Disabled} Enables or disables the sending of DHCP quer ies during the boot s equence. It is enabled by default. CHANGE HARDWAR E xx-xx-xx Specifies the last three number s of the device server's Ethernet address.
MSS User Guide 6: Troubleshooting 6-6 Technical Support If you are experiencing an error that is not des cribed i n this chapter, or if you are unable to fix the error, you may: Check our online kn owledge base at www.lantronix.com/supp ort.com E-mail us at support@lantronix.
7-1 Ethernet Connector Figure 7-1: RJ45 Ethernet Connector Pinout MSS VIA Connectors PC Card Slot The MSS-VIA PC card slot accepts Type I/I I 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).
MSS User Guide 7: Pinouts 7-2 Figure 7-2: DB25 Serial Connector The dual DB25 port can be used for either an RS-232 connection or an RS-485 connectio n. 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.
MSS User Guide 7: Pinouts 7-3 Figure 7-4: DB9 RS-485 Serial Connec tor RS-232 DB9 Connectors The MSS4 DB9 connector also provides an RS-23 2 serial port. Figure 7-5: DB9 RS-232 Serial Connec tor MSS100 Connectors DB25 Connector The figure below shows the pin connections of the M SS DB25 connector.
MSS User Guide 7: Pinouts 7-4 Modem Wiring DSR (Data Signal Ready ) versus CD (Carrier Detect) By default, most modems assert CD only during a val id 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 act s like CD.
8-1 Obtaining Software Software updates and release n otes for the MSS can be downloa ded 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.
MSS User Guide 8: Updating Software 8-2 attempts. The MSS will then try TFTP, Ne tWare, and MOP booting (in that order) provided that it has enough information to try each do wnload method. Downloading and rewriting the Flash ROM will take approximately two minutes from the time the Initialize command is issued.
MSS User Guide 8: Updating Software 8-3 The path and filename are case-sensiti v e 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.
MSS User Guide 8: Updating Software 8-4.
8-1 Compliance Information (According to ISO/IEC Guide 22 and EN 45014) Manufacturer’s Name & Address : Lantronix 15353 Barranca Parkway, Irvine, CA 9261 8 USA Declares that the following prod u.
MSS User Guide A: Complia nce and Warra nty Information 8-2 Warranty Lantronix warrants each Lantronix product to be free from defe cts in material and workmanship for a period of ONE YEAR.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Lantronix MSS4 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Lantronix MSS4 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Lantronix MSS4 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Lantronix MSS4 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Lantronix MSS4, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Lantronix MSS4.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Lantronix MSS4. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Lantronix MSS4 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
