Black Box LE3700A-R2 manual AppleTalk

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CHAPTER 5: Protocol Overview

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. The RTEL software, which you must install and configure on the host, provides more functionality than remote- LPR. It allows the host’s lp or lpr printing system to transparently use the EPS’s print devices, and also allows you to create tty devices on the host that map to the EPS.

The EPS’s IP address must be set before you can use any of the TCP/IP functionality. You can set the address by hand or via BOOTP or RARP— see Chapter 3 for more details. In general, you must tell the EPS’s address to any host wishing to access the EPS. You can usually configure this via a file (/etc/hosts) containing all the local IP addresses, or a nameserver on the network. Specifying a gateway IP address on the EPS allows the server to reply correctly to non-local network connections.

TCP/IP print services are entirely host driven—the EPS does nothing until a host connects to it and requests a print job. The service does not check to see if the EPS and the print resource exists on the host until you queue a print job. The only time the EPS will initiate a connection is to tell a host to start a previously queued job.

5.3 AppleTalk

AppleTalk includes a variety of network media types. LocalTalk is frequently used to refer to AppleTalk running over 230 kbps serial lines. All Macintosh computers provide LocalTalk support, but the EPS does not. The other two types, EtherTalk and TokenTalk, provide AppleTalk over Ethernet and Token Ring, respectively. The EPS supports only EtherTalk, so most Macintosh computers will need either an Ethernet card or a LocalTalk-to-EtherTalk router to connect to the EPS’s services. TokenTalk users wishing to use the EPS print services have to have an Ethernet-Token Ring bridge or router to connect the two networks. In the following discussions, AppleTalk refers only to EtherTalk.

The EPS provides only enough of the AppleTalk protocol stack to provide printing. You can only access the EPS as a LaserWriter from an AppleTalk client (Chooser menu, etc.) The device name that shows up in the Chooser menu is the name of the service defined on the EPS. If the EPS service name is “LAB_SERIAL,” that’s what will show up in the client Macintosh computer’s Chooser menus.

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Contents Ethernet Print Server FCC Statement Ethernet Print Server NOM Statement Trademarks Used in this Manual Contents Contents Specifications Introduction DescriptionProtocols Supported Additional Software You May NeedEPS Configuration Printing from the host to the EPSIntroduction Installation EPS Network InstallationInstallation Print Server Screen Power-Up Troubleshooting How Do I Know It’s Working?Code in Flash ROMs is Corrupt Host Configuration NetWare Host ConfigurationAvailable Topics Menu Supervisor Options Menu Available Options Print Queue Information Print Server Information Menu TCP/IP Host Configuration 10. Print Server Info/Status ScreenTo the /etc/hosts file, AppleTalk Host Configuration Optional Rtel FunctionalityLAT Host Configuration Can also be set up as Troubleshooting the Printing Process Host Configuration Ethernet Print Server Protocol Overview NetWare TCP/IPAppleTalk LAT Protocol Overview EPS Configuration Server CharacteristicsPasswords EPS ConfigurationPort Characteristics Service SettingsEPS Configuration TCP/IP Configuration NetWare ConfigurationAppleTalk Configuration LAT Configuration Ethernet Print Server UNIX/RTEL Host Setup Reverse Telnet BackgroundEthernet Print Server Installation Procedure Installing the Reverse Telnet SoftwareReverse Telnet for Unsupported Unix Machines Setting up the Rtel Interfaces Creating Rtel Print Queues Queuename server Service Passwd options Deleting Rtel Print Queues Creating Rtel Pseudo-Devices Option Description UsageQueueing with the Rtel Software Rtel Troubleshooting Connecting to a Specific Port Using Telnet Appendix a RJ-45 Adapter Pinout RJ12 Or MMJAppendix a RJ-45 Adapter Pinout Serial Cables Appendix B Cable LimitsNetwork/Cable Limits Parallel CablesConnections and Termination Appendix C Power-Up TestsLED Patterns LED State Meaning Appendix C Power-Up Tests Appendix D Network Logins Appendix D Network Logins Appendix E Quick-Start Guide Appendix E Quick-Start Guide Ethernet Print Server Page Copyright 2002. Black Box Corporation. All rights reserved

LE3700A-R2 specifications

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