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Black Box LE3700A-R2 Manual

Black Box LE3700A-R2 Manual

Ethernet print server
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SEPTEMBER 1999
LE3700A-R2
Ethernet Print Server
CUSTOMER
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
SUPPORT
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
INFORMATION
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com

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  • Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) SUPPORT FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 INFORMATION Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 2 FCC STATEMENT FEDERAL COMMUNICATIONS COMMISSION INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when the equipment is...
  • Page 3 ETHERNET PRINT SERVER NORMAS OFICIALES MEXICANAS (NOM) 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas.
  • Page 4 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.
  • Page 5 ETHERNET PRINT SERVER TRADEMARKS USED IN THIS MANUAL ® is a registered trademark of International Business Machines Corporation. ® is a registered trademark of Hewlett-Packard. DEC™, VMS™, ULTRIX™, LAT™, and MicroVAX™ are trademarks of Digital Equipment Corporation. LocalTalk™and EtherTalk™ are trademarks of Apple Computer, Inc. Macintosh , AppleTalk , TokenTalk...

  • Page 6: Table Of Contents

    Chapter 1. Specifications ..........7 2.
  • Page 7 ETHERNET PRINT SERVER Contents (continued) Chapter 7. UNIX/RTEL Host Setup ........43 7.1 Reverse Telnet Background .

  • Page 8: Specifications

    Protocol — NetWare IPX/SPX 2.2 or 3.x, TCP/IP, AppleTalk, LAT System Requirements — Ethernet-based network running one or Logical Connections — Any combination of NetWare, TCP/IP, AppleTalk, Number of Lines — 1 serial and 1 parallel Serial Line Formats — Characters: 7 or 8 data bits; Stop Bits: 1 or 2; Data Rates —...

  • Page 9: Introduction

    ETHERNET PRINT SERVER 2.1 Description The Ethernet Print Server (EPS) is a multiprotocol print server. It provides network access to printers for a variety of network protocols and operating systems. It has an AUI port for connection to an external Ethernet transceiver, and an RJ-45 connector for use with 10BASE-T.

  • Page 10: Protocols Supported

    If you cannot move a switch by hand, use a small screwdriver or pen to gently flip the switch. Make sure each switch is fully in the On or Off position; inconsistent operation may result if the switch is between settings. 2.2 Protocols Supported A network protocol is a method of communicating over the Ethernet—each protocol specifies a certain arrangement of data in the Ethernet packets,...

  • Page 11: Eps Configuration

    ETHERNET PRINT SERVER 2.4 EPS Configuration Depending on your network, the EPS might work properly right out of the box with no additional configuration. If your network installation will use the AUI port instead of 10BASE-T, you will need to change one of the DIP switches before you install the unit.
  • Page 12 CHAPTER 2: Introduction In all three cases, the EPS is transparent to the user and uses normal print syntax from the host—simply specify the file and queue name in the print command.

  • Page 13: Installation

    ETHERNET PRINT SERVER This chapter covers only the installation of the EPS in the network and attaching the print devices. For details on installing the optional RTEL software or installing a new download image (to re-load the EPS’s code in the Flash-ROMs) see Appendix E. This section assumes a basic understanding of network installations, and host setup in NetWare, TCP/IP, AppleTalk, or LAT environments.
  • Page 14 4. If Sw2 is off, the EPS will print status information to the serial port as it boots. Attach a console device (we recommend using a terminal) to the serial port of the server. The default serial port settings are 9600 baud, 8 bit characters, and no parity.
  • Page 15 ETHERNET PRINT SERVER After the EPS loads the Flash code and the unit is running normally, the OK LED will blink once each 2 seconds. Depending on SW2’s position, the EPS will print a greeting to the serial port when the unit is operational: Ethernet Address: undefined Lantronix EPS1 Print Server...

  • Page 16: How Do I Know It's Working

    3.1 How Do I Know It’s Working? If the EPS appears to be working (OK LED is blinking slowly) and the unit is connected to the network, there are various ways to confirm that the unit is visible to network hosts: •...
  • Page 17 ETHERNET PRINT SERVER If a terminal is not attached to the serial port, you can still detect a boot error (typically network-related) via the LEDs. If the OK and network LEDs are blinking rapidly (2-3 times per second) in unison, a boot failure occurred.

  • Page 18: Host Configuration

    4. Host Configuration Host configuration is broken down by protocol, since none of the procedures are common to any of the protocols. You must enable the protocol on the EPS service before clients will be able to see and use that service. You should be familiar with the protocol and host setup;...
  • Page 19 ETHERNET PRINT SERVER You must perform these steps on each file sever that will need access to the EPS queues. Users on each file server wishing to print will specify the file server’s queue name; the file server and EPS will decide which, if any, of the EPS’s queues can service the requests.
  • Page 20 Use the arrow keys to select “Supervisor Options,” and press <Enter>: Supervisor Options Default Account Balance/Restrictions Default Fine Restrictions -> Edit System Autoexec file File Server Console Operators Intruder Detection/Lockout System Login Script View File Server Error Log Workgroup Managers Fig.
  • Page 21 ETHERNET PRINT SERVER Press <Insert> to create a new entry and add the EPS1 name (EPS_xxxxxx by default) and hit <Enter>. Enter Print Server Name:EPS_xxxxxx This is the name that the EPS will log in as when querying the file server’s print queues.
  • Page 22 3a. Highlight the queue you just entered and press <Enter> to configure the queue itself. The menu shown in Fig. 3-5 will appear. Print Queue Information Current Print job entries Current Queue Status Currently Attached Servers Print Queue ID Queue Operators ->...
  • Page 23 ETHERNET PRINT SERVER 4. When you desire no other configuration, you need to tell the EPS to re-scan the file server queues since you modified them. Return to the main “Available Options” menu, highlight “Print Server Information,” and press <Enter>. Available Options Change Current File Server Print Queue Information...

  • Page 24: Tcp/Ip Host Configuration

    Highlight “Server Info” and press <Enter>. The menu shown in Fig. 4-10 appears. Print Server Info/Status Print Server Version: Print Server Type:Dedicated DOS # of Printers Queue service modes -> Current Server Status Serial Number Fig. 4-10. Print Server Info/Status Screen. Highlight “Current Server Status”...
  • Page 25 ETHERNET PRINT SERVER The Berkeley remote printing system is supported on many machines, and is simple to configure for the EPS. You need to add the host queue name into /etc/printcap, and then specify the remote nodename (EPS) and the service name on the EPS.

  • Page 26: Optional Rtel Functionality

    4.3 Optional RTEL Functionality Using the native lp or lpr print utilities requires installing and configuring the RTEL software on the host—see Chapter 7 for details. After installing the software and configuring connections to the EPS1, print commands will look like normal printing commands. % lp -deps1_queue filename % lpr -Peps1_queue filename Normal queue utilities (lpc, lpstat, etc.) will also be usable.

  • Page 27: Lat Host Configuration

    ETHERNET PRINT SERVER Macintosh computers that do not support EtherTalk will need either an Ethernet card or an EtherTalk-to-LocalTalk™ router to use the EPS. If you use a router, it will provide an EtherTalk zone on the LocalTalk network, and the EPS devices will appear under that zone.
  • Page 28 $ RUN SYS$SYSTEM:LATCP LCP> CREATE PORT LTAnnnn/APPLICATION LCP> SET PORT LTAnnnn/node=nodename/port =portname LCP> SHOW PORT LTAnnnn LCP> EXIT Above, nodename is the name of the EPS (EPS_xxxxxx) and portname is the name of the EPS print port to use (Port_1 is the serial port, Port_2 is the parallel port).

  • Page 29: Troubleshooting The Printing Process

    ETHERNET PRINT SERVER A print request might then look like $ PRINT/QUEUE=EPS_PARALLEL filename.txt Using the SHOW QUEUE/FULL command under VMS will show the setup characteristics of the VMS queue and what jobs are pending in the queue. 4.6 Troubleshooting the Printing Process You can troubleshoot print queues in a number of steps.
  • Page 30 If printing from NetWare, make sure you entered the server’s name and login password correctly under the PCONSOLE setup. If the EPS cannot log into the file server correctly, your job will not print. Also, make sure the EPS server name is one of the Queue Servers for each queue—if it is not, you will be able to log in, but the EPS will not be able to obtain information about queued jobs, so it will never print the jobs.
  • Page 31 ETHERNET PRINT SERVER • Check that flow control of some sort is enabled. Characters dropped during a PostScript job will generally cause the job to fail. You might also try attaching a terminal to the EPS print port and sending a small print job, and observe any obviously missing or corrupt data.

  • Page 32: Protocol Overview

    5. Protocol Overview The EPS supports 4 major protocols: NetWare, TCP/IP, AppleTalk (EtherTalk), and LAT. The 4 protocols provide varying support for printing, and each is discussed below. For all 4 protocols: On the EPS, the term “service” denotes a printing resource that another node can access.

  • Page 33: Netware

    ETHERNET PRINT SERVER 5.1 NetWare NetWare allows any networked node (a “client,” usually a PC) to access another node (a fileserver) as if it were locally attached. You can use hard disks, printers, and other devices as if they were directly attached to the client station.

  • Page 34: Appletalk

    The EPS provides two major methods of printing via TCP/IP. Berkeley Remote LPR is supported, as is the RTEL software. Both methods provide queueing of jobs on the host if the host is busy with another job. The remote LPR software allows the EPS to look like another host that can spool and print files, and hosts wishing to print to the EPS simply send the print data and assume the EPS will handle it properly.

  • Page 35: Lat

    ETHERNET PRINT SERVER An AppleTalk zone name is configurable, in case there are multiple zones on the LAN to which the EPS is connected. If you are using the default zone or only one zone, you do not need to configure any information on the EPS. Only AppleTalk routers provide zones, so if you have no router on your network, you will not need a zone configuration.
  • Page 36 CHAPTER 5: Protocol Overview LAT is disabled by default on services provided by the EPS. This is because many network managers object to the frequent LAT service announcements. If you desire LAT on these services, you can easily turn it on. You can also configure LAT hosts to connect directly to a physical port on the EPS, eliminating the need for service announcements, but still providing LAT printing.

  • Page 37: Eps Configuration

    ETHERNET PRINT SERVER 6. EPS Configuration In many cases, you may not need to configure the EPS to use it as a print server. Using NetWare and AppleTalk is especially simple. To print using LAT and TCP/IP, you may need to follow some of the setup instructions listed below.

  • Page 38: Passwords

    TCP/IP users may want to set a TCP/IP address or gateway host (SET SERVER IPADDRESS or GATEWAY commands). You might need a gateway host if you have routers on your network and wish to print from non-local networks. The EPS will listen for routing packets (RIP, OSPF, etc.) to auto-select a router, but if these packets are not on your network, you must set a gateway host.

  • Page 39: Port Characteristics

    ETHERNET PRINT SERVER 6.3 Port Characteristics You can change all port settings via the SET (or DEFINE) PORT commands. Since the ports logout after each print job, you will generally want to use only DEFINE to configure them. You can LOGOUT the port to force the new settings to take effect.
  • Page 40 refer to both physical ports. For example, you might want an AppleTalk service named “LAB_APPLE” and a NetWare service named “NETW_LASER,” both pointing to the serial port on the EPS. Both queues will accept jobs simultaneously, and jobs from both queues will print on the serial port in the order in which they were queued.

  • Page 41: Netware Configuration

    ETHERNET PRINT SERVER 6.5 NetWare Configuration You do not need to configure the EPS for use with NetWare. The NetWare address is the EPS’s hardware address, and the EPS discovers the network by listening to network traffic. The EPS contacts file servers in the same way. You do need to specify a file server to contact to download new EPS software if the Flash-ROMs ever need reloading.

  • Page 42: Lat Configuration

    1. Flow control must be enabled; if any characters are lost in transmission, the entire job will likely fail and the printer may hang. X-ON/X-OFF (the default on the EPS) is acceptable. 2. 8-bit characters (also the default) must be enabled for PostScript jobs to be sent to the printer correctly.
  • Page 43 ETHERNET PRINT SERVER The SHOW PROTOCOLS LAT command shows all current configuration and counters for the LAT protocol handler on the EPS. SHOW QUEUE will show any currently queued or active LAT print jobs. SHOW NODES and SHOW SERVICES will show other available LAT resources, and is an easy check of your LAT network.

  • Page 44: Unix/Rtel Host Setup

    7. UNIX/RTEL Host Setup This chapter explains how to set up your UNIX host to take advantage of the Reverse Telnet software. Reverse Telnet allows your UNIX host to form connections to the EPS, through the host’s print queueing system, a device interface, or with applications such as Telnet and Rlogin.
  • Page 45 ETHERNET PRINT SERVER not support all the data-processing options that the printer interface does. It cannot be configured to generate a banner page, for example, or perform tab expansion. The options for the printer-interface method are not valid with the device interface method. The setup for the two RTEL methods is similar, but not identical.

  • Page 46: Installing The Reverse Telnet Software

    In general, rteld is the only application that users might have to run interactively. The lp and lpr filters are called by the host’s printing subsystem. 7.2 Installing the Reverse Telnet Software This section describes the procedure used to install the Reverse Telnet software (RTEL) on a UNIX host machine.

  • Page 47: Setting Up The Rtel Interfaces

    ETHERNET PRINT SERVER To install and configure the RTEL software: 1. Log into the host machine as the super-user. Set your current directory to /tmp/rtel (or whichever directory the ETS software was initially loaded into). 2. Execute the RTEL install script by typing “./lpinstall” at your local prompt.

  • Page 48: Creating Rtel Print Queues

    NOTE: The target print service does NOT have to be local to the EPS. The EPS will search remote services if the service specified is not local. You can access any available LAT service through the EPS in this manner. For example, if a printer connected to the network provides its own LAT service (for example, laser1), laser1 could be placed in the server_hosts file as the service to use and the EPS will attempt to print jobs to laser1, even though the EPS is not providing the service.
  • Page 49 ETHERNET PRINT SERVER 5. The mkprt script will add the following information to the /usr/spool/rtel/server_hosts file: queue_name server passwd options Queue_name is the name of the UNIX print queue; passwd and options are configurable parameters for the print queue. Server and service are the EPS and EPS service that will be providing the printer.

  • Page 50: Deleting Rtel Print Queues

    There must be an entry in the options field (use “none” if no options are desired). Multiple options can be specified, separated by commas. Options must be specified in lower case characters. There must be an entry in the server_hosts file for each EPS print queue you wish to use.

  • Page 51: Creating Rtel Pseudo-Devices

    ETHERNET PRINT SERVER For UNIX systems that use the lpr spooling system, delete the entry for the printer in the “/etc/printcap” file. You also may want to delete the entry for the printer in the RTEL directory. 7.8 Creating RTEL Pseudo-Devices For each RTEL pseudo-device you wish to create, the EPS must execute the rteld command.

  • Page 52: Queuing With The Rtel Software

    queue_name server rprint1 eps1 /dev/ttyq1 eps2 /dev/ttyq6 eps2 The second line will request a connection to EPS “eps2” and service “mod_srvc”, using pseudo-device ttyq1. No password will be specified, and queueing will be enabled. The third line will attempt a connection from device ttyq6 directly to port 4 on “eps2,”...

  • Page 53: Rtel Troubleshooting

    ETHERNET PRINT SERVER 7.10 RTEL Troubleshooting There is a diagnostic file in the /usr/spool/rtel directory that may be helpful in finding problems. The job_status file contains any errors that occurred on a particular print job, such as job aborted, invalid service name, or incorrect password (for passworded services).This file should be examined if the RTEL queue is not performing correctly.

  • Page 54: Connecting To A Specific Port Using Telnet

    In addition, verify that the service is available. Issue the server command SHOW SERVICE serv_name CHARACTERISTICS. The service port should be the port the printer is physically connected to and the service rating should be non-zero. If the service rating is zero, the service is not available. Verify that the port is set to access remote or dynamic (see the server commands define port n access remote or define port n access dynamic).

  • Page 55: Appendix A: Rj-45 Adapter Pinout

    ETHERNET PRINT SERVER Appendix A: RJ-45 Adapter Pinout DB25 Female Connector RJ12 (or MMJ) 1 2 3 4 5 6 (to LE3700A) 12 3 456 RJ12 (or MMJ) Connector Fig. A-1. RJ-45 Adapter. Reverse side of RJ12 (or MMJ)
  • Page 56 Table A-1. RJ-45 Adapter Pinout. Pin # Signal Name (at EPS) (at EPS)* CTS (in) DSR (in) Receive Rx Return Tx Return Transmit DTR (out) RTS (out) *This table assumes that you are using a swapped cable, in which pin 1 at one end goes to pin 8 at the other end.

  • Page 57: Appendix B: Cable Limits

    ETHERNET PRINT SERVER Appendix B: Cable Limits B.1 Network/Cable Limits Thinwire (10BASE2) segments can be no longer than 185 m (600 ft.), and can have taps no closer together than 0.5 m (1.5 ft.) apart. These can be no more than 30 taps per segment. Thickwire segments can be no longer than 500 m (1650 ft.).

  • Page 58: Appendix C: Power-Up Tests

    APPENDIX C: Power-Up Tests Appendix C: Power-Up Tests When you power up the server, it goes through the power-up diagnostics. These diagnostics first blink the LEDs to indicate that the processor can execute firmware correctly and that you can individually address the LEDs. It then tests RAM, the serial channels, and the Ethernet controller.
  • Page 59 ETHERNET PRINT SERVER LED State • - - - (1/2 second) - • - - (1/2 second) - - • - (1/2 second) - - - • (1/2 second) • • • • (Continuous) The EPS detected an error accessing the gate array. - - - - - - - •...
  • Page 60 Table C-1. LED Patterns (continued). LED State Meaning • • • - (3 seconds) NVR check sum error: Ethernet address and other server parameters are set to factory defaults. You will have to restore the Ethernet address from the back label before you can use the server.

  • Page 61: Appendix D: Network Logins

    ETHERNET PRINT SERVER Appendix D: Network Logins Configuring the EPS from the network is rather simple. You can log into the EPS via LAT, TCP/IP, and NetWare, and you will have a command “shell” with which to configure the EPS. The EPS provides utilities to allow you to configure it from AppleTalk and NetWare nodes without logging in.
  • Page 62 APPENDIX D: Network Logins From LAT devices, the server’s name (EPS_xxxxxx) should appear as a service on LAT-enabled hosts. If you connect to that service, you will be connected at the password prompt. For example: VMS> SET HOS/LAT EPS_45E23A to connect from a VMS LAT host, or Local>...

  • Page 63: Appendix E: Quick-Start Guide

    ETHERNET PRINT SERVER Appendix E: Quick-Start Guide NOTE: Read this appendix only if you are loading a new boot image on the print server. If you’re a manager who has installed print/terminal servers before and are very familiar with BOOTP, RARP, TFTP, NetWare, and/or MOP downloading configuration, read this chapter to set your EPS up quickly.
  • Page 64 #Note that #s are typically comment characters. #host htyp hardware address IP address bootfile eps1 1 00:80:a3:04:19:4c 192.1.240 /tftpboot/PS1.SYS Recall that in BOOTP and TFTP, the path and filename are case-sensitive. If your host supports RARP instead of BOOTP, you can configure the host to reply to the EPS’s RARP requests and give the EPS its IP address.
  • Page 65 ETHERNET PRINT SERVER • NetWare: You need to specify the file server to load from and the path and filename of the download file. The download file must be in the login directory of the file server you are loading from (because of login restrictions).
  • Page 66 NOTES...
  • Page 67 © Copyright 2002. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

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