3Com CS/2500 Overview, Features, Ten standard RS-232-D electrical interfaces, Serial interfaces

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1 OVERVIEW

CS/2500 series communications servers connect serial devices over a local area network (LAN). These products support most asynchronous terminals, hosts, printers, personal computers, modems, word processors, and other devices. All CS/2500 series models can be used as terminal servers or as combination host and terminal servers.

The CS/2500 series consists of Model CS/2500 and Model CS/2600, shown in Figure 1-1.

3Com

CS/2500

CS/2500

3Com

CS/2600

CS/2600

2 MB memory RS-232 support

RS-422 support (transmit, receive data only) Parallel printer port

	Figure 1-1 CS/2500 and CS/2600 Communications Servers

Features	CS/2500 and CS/2600 communications servers offer the following
	features:
	■ Ten standard RS-232-D electrical interfaces
	■ Support for RS-422 (Transmit and Receive Data only) over RS-232
	serial interfaces

Image 17

Contents CS/2500 Series 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Iii Page Contents Installation Maintenance and Upgrades PIN Assignments Technical Support Page Figures Tables Introduction About this GuideAudience ConventionsThis Typeface Italics Italics are used to denote new terms or emphasis About this Guide Features FeaturesOverview Ten standard RS-232-D electrical interfacesSW/2500, can be used only with the CS/2500 and CS/2600 SoftwareCompatibility Panel, see Back Panel on ChassisHardware Interrupt Front Panel Its +5 V DC output CS/2500 and CS/2600 back panel, shown in -5, contains Power supply module and three types of connectorsBack Panel Overview Back Panel Overview Mount Kit SpecificationsOptional Rack VAC Preparation InstallationDo the following before beginning the installation Installation Install brackets Turning on the server Cabling the ServerTo the Network All ports are set to terminal SETDefault -TERM DeVice = Installation End to the transceiver Slide-lock connection on the serverInstall brackets AC power source must meet the requirements outlined ConfigurationConfiguration, and Appendix C, Monitor Utility ModifyingInstallation Startup Guide or software release notes Diskette Booting fromRbcs files DisketteStartup 3Com Corporation CS/2000 Series Monitor Reading...OK Insert copy and hit return to continue Parameter changes Normal Startup Boot ProblemsMessages Shutting DownShutting Down Startup Firmware Monitor ConfigurationEntering Configuration Following menu is displayed ProcedureChanging SLP Changing the Configuration Configuration Changing the Configuration Next section SLP, and Trivial File Transfer Protocol TftpUsed with 3Com Network Control Servers NCSs Com no longer Tftp Type B Change IP/TFTP Parameters menu appearsConfiguration Bootp Software and to operate in mixed environments Emulating aCS/2000 or CS/2100 Changing Port Configuration Changing Port Configuration Configuration Maintenance Maintenance and Upgrades3Com recommends the following procedures for preventive MaintenanceMaintenance and Upgrades Maintenance Reinstall the fuseholder cartridge in the receptacle Upgrade procedures require you to remove the server cover UpgradesRemoving the Server Cover Rear Grasp both sides of the cover and carefully lift it off8-F Pull taut to expose screw Voltages. There are no user-serviceable parts inside Upgrades Remove Connector from Each pin must be inserted properly into its socket Replace the cover, as described in the next section EPROM. Each pin must be inserted properly into its socketUpgrades Maintenance and Upgrades Troubleshooting Troubleshooting Operating Problems Troubleshooting Memory Dump ProceduresEnter the density of the dump diskettes Return to use the default density 2mb Troubleshooting PIN Assignments Figure A-1 Serial Connector Pin NumberingTXD DTE Transceiver DO-S Slct Startup Messages Appendix B Startup Messages Monitor Utility You can access the monitor in either of the following waysNonfunctional Set the Auto-reboot parameter to Boot monitorContinuous Self-Test and Initial Boot Source parameters -2 on page 1-4. The switch is recessed into a round hole to Memory dumps, refer to Memory Dump Procedures onBecome nonfunctional, enter the following command Dump Procedures onSyntax BT Using this menu, refer to , Configuration Procedures onFilename and address parameters specify the name From memory locationDescription Repeats the previous command 3Com Bulletin Board Service 3ComBBS ServicesTechnical Support On-line TechnicalPress Return to see the ThreeComForum main menu Country Telephone Number Hong Kong 852 2537 44 1442 408 727 Appendix D Technical Support Sender’s expense To obtain an RMA number, call or fax Returning ProductsFor Repair 10/25/95 Numerics IndexCover Index Index Index Index Limited Warranty Bayfront Plaza Santa Clara, CA 408 764-5000 1/1/94