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3Com CS/2500 Installation Manual

Cs/2500 series communications server
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®
Part No. 09-0263-001
Published December 1995
CS/2500 S
C
OMMUNICATIONS
I
NSTALLATION
ERIES
S
G
UIDE
ERVER

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Summary of Contents for 3Com CS/2500

  • Page 1 CS/2500 S ® Part No. 09-0263-001 Published December 1995 ERIES OMMUNICATIONS NSTALLATION ERVER UIDE...
  • Page 2 95052-8145 © 3Com Corporation, 1995. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Corporation.
  • Page 3 Shielded Cables Connections between 3Com equipment and other equipment and peripherals must be made using shielded cables in order to maintain compliance with FCC, and other agency, electromagnetic frequency emissions limits. Federal Communications Commission Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.

  • Page 5: Table Of Contents

    ONTENTS BOUT UIDE Introduction Audience Conventions VERVIEW Features Software Compatibility Chassis Hardware Interrupt Switch Cover Front Panel LEDs Reset Switch CS/2600 Internal Diskette Drive Back Panel Serial I/O Connectors RS-232 Interface RS-422 Interface Console Port Transceiver Connector Printer Port Connector Power Supply Module Optional Rack Mount Kit Specifications...
  • Page 6 NSTALLATION Preparation Mounting the Server Cabling the Server to the Network Attaching the Power Cable Modifying the Firmware Configuration TARTUP Booting from the Network Booting from Diskette Normal Startup Messages Boot Problems Shutting Down ONFIGURATION Entering the Firmware Monitor Changing the Configuration Mounting on a Table Mounting in a Rack Mounting on the Wall...
  • Page 7 Auto-Reboot Monitor Initial Boot Source Number of Reboots Network Boot String Boot Retries Boot Protocol Using TFTP Printer Setup Menu 4-11 System Default Configuration Menu Emulating a CS/2000 or CS/2100 Changing Port Configuration AINTENANCE AND Maintenance Cleaning the Diskette Drive Head Replacing the Fuse Upgrades Removing the Cover...
  • Page 8 RS-232 Serial Ports Transceiver Connector Parallel Printer Port TARTUP Entering the Monitor Using Commands viii SSIGNMENTS RS-422 Operation ESSAGES ONITOR TILITY Configuring Firmware to Access the Monitor At Startup If the Server Becomes Nonfunctional Using the Hardware Interrupt Switch Command Descriptions H or ?
  • Page 9 ECHNICAL UPPORT On-line Technical Services 3Com Bulletin Board Service Access by Modem Access by ISDN World Wide Web Site ThreeComForum on CompuServe 3ComFacts Automated Fax Service Support from Your Network Supplier Support from 3Com Returning Products for Repair IMITED ARRANTY...
  • Page 11 IGURES 1-1 CS/2500 and CS/2600 Communications Servers 1-2 CS/2500 Series Enclosure 1-3 CS/2500 Front Panel 1-4 CS/2600 Front Panel 1-5 CS/2500 and CS/2600 Back Panel 1-6 Power Supply Module 1-10 2-1 Mounting in a Rack 2-2 Console Port Cable Attachment...
  • Page 12 1 Notice Icons 2 Text Conventions 1-1 Software Compatible with CS/2500 and CS/2600 1-2 Software Compatible with CS/2000 and CS/2100 1-3 Front-Panel LED Indicators 1-4 Physical Dimensions 1-5 Electrical Requirements 1-6 Environmental Requirements 2-1 Console Port Configuration 4-1 Firmware Configuration Parameters...

  • Page 13: About This Guide

    3Com® CS/2500 series of communications servers. The CS/2500 series consists of Models CS/2500 and CS/2600. These models are identical except that Model CS/2600 includes a diskette drive. All references in this guide to “CS/2500 series,”...

  • Page 14: Text Conventions

    BOUT UIDE Table 1 Notice Icons Icon Table 2 Text Conventions Convention Description “Enter” vs. “Type” When the word “enter” is used in this guide, it means type something, then press the Return or Enter key. Do not press the Return or Enter key when an instruction simply says “type.”...
  • Page 15 Table 2 Text Conventions (continued) Convention Description Keys When specific keys are referred to in the text, they are called out by their labels, such as “the Return key” or “the Escape key,” or they may be shown as [Return] or [Esc].
  • Page 16 BOUT UIDE...

  • Page 17: Overview

    (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.

  • Page 18: Software Compatibility

    Model CS/2500 has no diskette drive. This configuration is advantageous in environments where disk contamination is possible or where users are not allowed access to system software. The CS/2500 boots over the network from a 3Com Remote Boot and Configuration Services (RBCS) server or a generic Trivial File Transfer Protocol/File Transfer Protocol (TFTP/FTP) server.

  • Page 19: Chassis

    When a CS/2500 or CS/2600 is running in CS/2000 or CS/2100 mode, it can use only the software listed in Table 1-2, or other software with the prefix SW/2000 or SW/200. Table 1-2 Software Compatible with CS/2000 and CS/2100 Software...

  • Page 20: Hardware Interrupt Switch

    Printer port Power supply module Serial ports Air exhaust Figure 1-2 CS/2500 Series Enclosure Hardware Interrupt The hardware interrupt switch is located on the server’s left side panel Switch close to the rear, as shown in Figure 1-2. The switch is recessed behind a small round hole to protect it from being pressed unintentionally.

  • Page 21: Cover

    Front Panel The front panel has six LED indicators and a reset switch. Figure 1-3 shows the front panel of the CS/2500 diskless server. Figure 1-4 shows the front panel of the CS/2600, which includes a 3.5-inch diskette drive. The front panel label shows the model number, providing easy identification in mixed environments.

  • Page 22: Leds

    LED Name Normal State Power Self Test Boot State (continued) Data Received Flashing Packet Received Flashing Network Flashing Activity 3Com CS/2600 Boot Power Self Data State Received Received Test LED indicators Function On if server is turned on and the power supply generates voltage on its +5 V DC output.

  • Page 23: Reset Switch

    Back Panel The CS/2500 and CS/2600 back panel, shown in Figure 1-5, contains the power supply module and three types of connectors: Serial port connectors to connect host, terminal, or modem devices...

  • Page 24: Rs-232 Interface

    (connector J0C corresponds to port 0, connector J1C to port 1, and so on). RS-232 Interface The default serial I/O interface for the CS/2500 series is RS-232-D. For information about pin assignments, refer to Appendix A, “Pin Assignments.”...

  • Page 25: Transceiver Connector

    Appendix A, “Pin Assignments.” Printer Port Connector The CS/2500 series includes a printer interface port to connect the server to parallel printers with Centronics printer interfaces. The printer port (labeled Parallel Printer) is located at the top left center of the back panel (refer to Figure 1-5).

  • Page 26: Power Supply Module

    The communications server has an international CEE-22 AC power receptacle approved for 6 A operation. The connector has three prongs, with chassis ground on the middle prong. All servers are shipped with power cords. If your power cord does not match your requirements,...

  • Page 27: Power Supply Module

    An optional rack mount kit is available for CS/2500 series servers Mount Kit (3Com part number 3C759). This kit allows you to mount the server in a two- or four-pole 19-inch rack. For information on how to install the server in a rack, refer to “Mounting in a Rack”...
  • Page 28 1-12 1: O HAPTER VERVIEW Table 1-4 Physical Dimensions Attribute Weight Table 1-5 Electrical Requirements Parameter Input voltage Input voltage ranges 90 to 132 VAC Maximum current consumption Maximum power consumption Heat dissipation Table 1-6 Environmental Requirements Parameter Temperature: Altitude: Relative humidity: The server power supply has overcurrent protection on the +5 V output and overvoltage protection on +5 V DC.

  • Page 29: Installation

    3 Inspect the server for shipping damage. If you find any damage, contact the shipping company to file a report. If you must return the server to your network supplier or 3Com, ship it in its original shipping carton. If the original carton was damaged in shipment, repack the server in a carton that provides equivalent protection.

  • Page 30: Mounting The Server

    HAPTER NSTALLATION Mounting the Server You can mount a CS/2500 series server on a tabletop, in a two- or four-pole 19-inch rack, or vertically in a wall mount. Mounting on a Table To mount your server on a tabletop, use the following procedure: 1 Place the server on a firm, flat surface.

  • Page 31: Mounting In A Rack

    2 Slip two spring-clip captive nuts over the holes of each rack pole where you want to install the server (see Figure 2-1). Make sure that the nut goes behind the pole. 3 Attach the server to the rack. One person should hold the server between the poles of the rack, while the other attaches the server to the poles.

  • Page 32: Mounting On The Wall

    Cabling Hosts, Connect the server to hosts, terminals, and modems through serial port Terminals, and connectors J0 through J9. You can buy cables from 3Com or use your Modems own cables. The communications server acts as a DCE device and can be attached to a DTE device, such as a terminal, host, or printer, using a straight-through cable.

  • Page 33: Attaching Rs-232 And Rs-422 Serial Cables

    All ports are set to terminal ( Terminal BAud is set to AutoBaud ( SETDefault -TERM BAud = AutoBaud PARIty is set to None ( SETDefault -TERM PARIty = None If your network hardware does not match these defaults, you must reconfigure the software.
  • Page 34 2: I HAPTER NSTALLATION Once the server is turned on, you can change these parameters using the Firmware Configuration Utility (refer to Chapter 4, “Configuration”). If you configure a port as the console port and then enable the monitor, that port cannot be used for another type of device. Attach the cable from the server to the terminal as shown in Figure 2-2.

  • Page 35: Console Port Cable Attachment

    IEEE 802.3 AUI mechanical and electrical specifications. 3Com transceiver cables are available in lengths from 15 to 150 feet (4.6 to 46 meters). Transceiver cables are also available with screw locks. The screw-lock transceiver cables include screw-lock posts to replace the slide-lock connection on the server.

  • Page 36: Attaching The Power Cable

    For pin assignments of the printer port, refer to Appendix A, “Pin Assignments.” Attaching the Power A power cable is supplied with your CS/2500 series server. If the power Cable cable does not match your requirements, contact your network supplier for assistance.

  • Page 37: Modifying The Firmware Configuration

    “Specifications” on page 1-11. The server must be connected to its AC power source with a grounded line cord to meet safety requirements. Modifying the The CS/2500 series server’s firmware is preset at the factory for basic Firmware installations; in most cases you do not need to reconfigure it.
  • Page 38 2-10 2: I HAPTER NSTALLATION...

  • Page 39: Startup

    Refer to “Cabling a Console” on page 2-5. Booting from the The CS/2500, which has no diskette drive, can boot only from the Network network. The CS/2600 can boot either from the network or from a local diskette.

  • Page 40: Installing Software On An Rbcs Server

    3Com communications servers and internetworking servers (client servers) running the TCP/IP protocols. CS/2500 series software for RBCS servers is supplied on a distribution diskette. To install or upgrade this software, refer to the Multiprotocol Communications Server Operation Guide or software release notes.

  • Page 41: Booting From A Generic Tftp/Ftp Host

    on the server again. If the problem persists, refer to “Startup Problems” on page 6-1. The Self Test LED remains on during self-test diagnostics, about 40 seconds. The server then enters the boot phase. The Boot State LED remains on during boot, and the Packet Received LED lights as the image is received from the RBCS server.

  • Page 42: Copying And Formatting Diskettes

    3: S HAPTER TARTUP the data in your current working diskette is corrupt, you can use the backup copy and still boot the server with the correct parameter settings. Copying and To copy a diskette on a CS/2600, follow this procedure: Formatting Diskettes 1 Connect a terminal to the console port (J0 is the default) on the communications server’s back panel.

  • Page 43: Formatting Diskettes Without The Copy Command

    6 Wait about five seconds, then press the Return key on the console keyboard. The monitor greeting appears, followed by the monitor prompt (>): 3Com Corporation CS/2000 Series Monitor > 7 Enter the soft reset command: 8 To copy a diskette, enter the copy command:...

  • Page 44: Booting The Communications Server

    3: S HAPTER TARTUP 12 Insert the master (source) diskette (the diskette you want to copy from) and press the Return key. The server copies files from the master diskette. The following message appears: reading...OK insert copy and hit return to continue 13 Remove the master diskette.
  • Page 45 This process takes about 20 seconds. CAUTION: 3Com suggests that you leave a working copy of the diskette in the drive. If the power fails, the communications server must have a diskette in the drive to restart automatically and to record any parameter changes.

  • Page 46: Normal Startup Messages

    The server may not always be able to report the failure on the console (for example, CPU failure). Report the failure and console messages, if any, to 3Com or your network supplier. Appendix B, “Startup Messages,” provides information on these messages.
  • Page 47 Refer to the Multiprotocol Communications Server Operation Guide and Multiprotocol Communications Server Software Reference Guide . 3 To shut down a CS/2500, turn the power off. On a CS/2600, wait until the disk drive LED goes out, then turn the power off.
  • Page 48 3-10 3: S HAPTER TARTUP...

  • Page 49: Configuration

    To configure CS/2500 and CS/2600 firmware settings, use the Firmware Configuration Utility. Firmware is preset at the factory for basic installations; in most cases you do not need to reconfigure it. This chapter describes how to make changes if necessary.
  • Page 50 6 Wait about five seconds, then press the Return key on the terminal keyboard. The monitor greeting appears, followed by the monitor prompt (>): 3Com Corporation CS/2000 Series Monitor >...

  • Page 51: Changing The Configuration

    RS-422 ports Auto RS-422 select LF issued after CR Printer setup string: Default settngs for the CS/2500 are the same, except that Initial Boot Source is “Network.” 3 To return to the Firmware Configuration Utility menu, press the Return key.

  • Page 52: Console Baud Rate

    4: C HAPTER ONFIGURATION 4 To change the current parameters, type The Change Parameters menu appears: esc Return to previous menu 5 Type the number or letter for the parameter you want to change. Table 4-1 describes each parameter and the choices available. More detailed descriptions of each parameter follow this table.
  • Page 53 P. Printer setup menu S. System default configuration menu * Default. † Default for CS/2500. ‡ CS/2600 only. Default is Floppy then Network. ** Choosing TFTP adds a choice to the Change Parameters menu. For more information, see “Using TFTP” on page 4-9.

  • Page 54: Continuous Self-Test

    You can perform memory dumps from a CS/2500 to an RBCS or TFTP/FTP server. You can perform memory dumps from a CS/2600 to its internal diskette drive or to an RBCS or TFTP/FTP server.
  • Page 55 There are five options: “Network,” “Monitor,” “Local Floppy,” “Network then Floppy,” and “Floppy then Network.” The CS/2500 can boot from the network or enter the monitor. The default setting is “Network.” The CS/2600 can boot from a diskette or the network, or enter the monitor.
  • Page 56 UNIX ® platform or generic TFTP server. For example, the boot string for a CS/2500 booting multiprotocol software version 6.2 from a DOS TFTP server would be “T25V62 “ (without the quotation marks). Boot Retries Specifies server behavior if a boot attempt fails. If you set “Try One Time,”...

  • Page 57: Initial Boot Source

    If you change the Boot Protocol parameter from TFTP to SLP and back to TFTP, check the Change IP/TFTP Parameters menu’s Address Discovery Protocol field. Changing from TFTP to SLP and back to TFTP results in Address Discovery Protocol reverting from your configured setting to its default setting (BOOTP then RARP).
  • Page 58 4-10 4: C HAPTER ONFIGURATION esc Return to previous menu Select parameter ? Address discovery obtains the information listed in this menu either through static entries configured in firmware by the user, or by BOOTstrap Protocol (BOOTP) or Reverse Address Resolution Protocol (RARP) from another source during system boot.

  • Page 59: Address Discovery Protocol Parameters

    Table 4-2 Address Discovery Protocol Parameters Value Meaning BOOTP BOOTP only. BOOTP then The communications server first seeks TFTP server addresses RARP using BOOTP; if this fails, it tries RARP. This is the default. RARP RARP only. RARP then The communications server first seeks addresses using RARP; BOOTP if this fails, it tries BOOTP.

  • Page 60: Printer Setup Menu

    “Changing Port Configuration” on page 4-13. Emulating a You can configure your CS/2500 or CS/2600 to run like a CS/2000 or CS/2000 or CS/2100 CS/2100, respectively. Emulation allows you to run earlier versions of software and to operate in mixed environments.

  • Page 61: Changing Port Configuration

    The Self Test LED begins flashing, and the following prompt appears: You must now power cycle or reset the box to continue... After the communications server reboots, it is in CS/2000 series mode. To reconfigure the server to CS/2500 series mode, follow the same procedure. Changing Port...
  • Page 62 4-14 4: C HAPTER ONFIGURATION 1 From the Change Parameters menu in the Firmware Configuration Utility, type The System Default Configuration menu appears: 1 - Change default memory map to CS2000/2100 2 - Configure port(s) as RS-232 3 - Configure port(s) as RS-422 4 - Enable/Disable automatic RS-422 port selection (pin Current Configuration: Default memory map...
  • Page 63 Changing Port Configuration 4-15 presence of an active pin 25 and automatically switches to RS-422 operation. This option affects all ports. This setting acts as a toggle. To disable it, type again. Automatic RS-422 selection requires a different configuration for the RS-422 connector, in which pin 22 acts as a loopback for pin 25.
  • Page 64 4-16 4: C HAPTER ONFIGURATION...

  • Page 65: Maintenance And Upgrades

    Replacing the diskette drive (Model CS/2600 only) Replacing the power supply Replacing memory chips and EPROMs Maintenance 3Com recommends the following procedures for preventive maintenance: Observe the environmental requirements listed in Table 1-6 on page 1-12. Temperatures outside the recommended range can impair reliability and cause diskette access errors.
  • Page 66 If your unit persistently blows fuses, there may be a problem with either your system’s power supply or your facility’s supply voltage. Contact 3Com or your network supplier for assistance. To change a fuse, follow this procedure: WARNING: Be sure the unit is turned off and the power cord is either disengaged from the unit’s receptacle or unplugged from the wall socket.

  • Page 67: Removing The Fuseholder Cartridge

    2 Pry the cartridge loose. It should pop out easily. 3 Slide the fuseholder cartridge completely out of the enclosure. (Prying cartridge) Figure 5-1 Removing the Fuseholder Cartridge 4 Remove the fuse clip insert from the fuseholder cartridge. The fuse clips, conductors, and fuses are mounted on this cartridge. Pull up the plastic retainer on the fuseholder cartridge and slide the insert away from the cartridge, as shown in in Figure 5-2.

  • Page 68: Opening The Fuseholder Cartridge

    5: M HAPTER AINTENANCE AND 8 Reinstall the fuseholder cartridge in the receptacle. Flip Figure 5-2 Opening the Fuseholder Cartridge PGRADES Autoranging power module Pull up plastic retainer Fuseholder cartridge Fuse clip insert Fuse...
  • Page 69 Follow the instructions in this section carefully. If any problems occur, contact 3Com or your authorized service representative immediately. If the information in release notes shipped with an upgrade kit differs from the information in this guide, follow the release notes.

  • Page 70: Removing The Server Cover

    5: M HAPTER AINTENANCE AND Removing the Cover Follow these steps to remove the server cover: 1 Shut down the server, as described in “Shutting Down” on page 3-8. WARNING: Before removing the cover, be sure the unit is turned off and the power cord is either disengaged from the unit’s receptacle or unplugged from the wall socket.

  • Page 71: Server Components

    4 Grasp both sides of the cover and carefully lift it off. Figure 5-4 shows a view of the server interior and its components. Figure 5-5 shows the motherboard and the locations of the memory chips and EPROMs that can be replaced. Transceiver connector and cable Rear...

  • Page 72: Memory Chip And Eprom Locations On Motherboard

    5: M HAPTER AINTENANCE AND Figure 5-5 Memory Chip and EPROM Locations on Motherboard Replacing the Diskette This section explains how to replace the diskette drive (Model CS/2600 Drive only). You need a #1 and a #2 Phillips screwdriver. A pair of needlenose pliers is also helpful for removing and replacing screws and connectors.

  • Page 73: Removing The Diskette Drive

    b Disconnect the cable attached to the rear of the daughtercard. Pull it toward you to expose the mounting screw that fastens the diskette drive bracket to the bottom of the chassis (step 2 in Figure 5-6). c Remove the mounting screw (step 3 in Figure 5-6). d Slide the bracket toward the rear and lift it and the diskette drive out of the chassis (step 4 in Figure 5-6).
  • Page 74 5-10 5: M HAPTER AINTENANCE AND 5 Transfer the bracket from the original diskette drive to the new one. a Remove the four screws (two on each side of the bracket) that hold b Slide the old drive out of the bracket. c Slide the new drive into the bracket.
  • Page 75 WARNING: To avoid possible electrical shock, the server’s power cord must be disconnected from the power source before accessing its internal components. You need a #1 and a #2 Phillips screwdriver. A pair of needlenose pliers is also helpful for removing and replacing screws. Follow this procedure: 1 Make sure server power is off and the power cord is unplugged.

  • Page 76: Removing The Power Supply

    5-12 5: M HAPTER AINTENANCE AND Motherboard Figure 5-7 Removing the Power Supply 4 Install the new power supply module. a For Model CS/2600 only, reconnect the power wiring harness to the b For both models, slip the keyhole slots on the bottom of the power c Fasten the module in place with the screw.

  • Page 77: Replacing Memory Chips

    Replacing Memory If you ever need to replace memory chips on the motherboard, follow Chips this procedure: 1 Make sure server power is off and the power cord is unplugged. 2 Remove the cover, as described in “Removing the Cover” on page 5-6. The memory chips are located on the motherboard, near the front of the server, as shown in Figure 5-5.

  • Page 78: Replacing Eproms

    5-14 5: M HAPTER AINTENANCE AND Replacing EPROMs To replace EPROMs on the motherboard, follow this procedure: 1 Remove the cover, as described in “Removing the Cover” on page 5-6. Make sure the server power is off and the power cord is unplugged. The EPROMs are located on the right side of the motherboard (when viewing the server from the front), as shown in Figure 5-5.

  • Page 79: Replacing The Cover

    Replacing the Cover When you have finished the upgrade or servicing, always replace the server’s cover before plugging it in. WARNING: To avoid a fire hazard, always replace the cover. Powering on the server without a cover can cause it to overheat. The warranty is void if this occurs.
  • Page 80 5-16 5: M HAPTER AINTENANCE AND PGRADES...

  • Page 81: Troubleshooting

    If your communications server does not start up as described in Chapter 3, “Startup,” or fails during operation, review the following troubleshooting hints. If you cannot solve the problem, contact 3Com or your network supplier. Refer to Appendix D, “Technical Support,” for technical support information.
  • Page 82 “Replacing the Fuse” on page 5-2. 5 Try replacing the power cord. If the Power and Self Test LEDs still fail to light, contact 3Com or your network supplier. During self-tests, the Self Test LED remains on for longer than about a minute or the console displays an error message.

  • Page 83: Operating Problems

    Formatting Diskettes” on page 3-4. Otherwise, refer to Chapter 4, “Configuration,” to check the configuration of the Initial Boot Source parameter. 6 If the problem persists, contact 3Com or your network supplier. Operating Problems This section lists problems the CS/2500 series server can experience while it is running multiprotocol communications server software.
  • Page 84 At the > prompt, enter c Enter d Enter 3 If the problems persists, contact 3Com or your network supplier. The communications server experiences one or more of the following symptoms: Data Received, Packet Received, and Network Activity LEDs do not indicate any activity, despite being connected to an operational network.

  • Page 85: Memory Dump Procedures

    1 Reset the server by pressing the reset switch on the front panel. 2 If resetting the server does not resolve the problem, check the cable, transceiver, and any other devices associated with connecting the Ethernet interface to the network. Replace any faulty component.

  • Page 86: Dumping Memory To A Tftp Host

    6: T HAPTER ROUBLESHOOTING Dumping Memory to a To write a memory dump to a TFTP host, you must set the boot protocol TFTP Host to TFTP, and the TFTP Upload Path parameter in the firmware configuration must indicate where the dump should be written onto the host.
  • Page 87 The server then displays the following prompt: Dump completed Sending in the Contact your network supplier or 3Com Customer Support before Memory Dump sending a memory dump from your communications server. Send the following information along with the diskettes:...

  • Page 88: Restarting

    6: T HAPTER ROUBLESHOOTING . This command provides both the software version string and VERSion the firmware version number. If the software fails to boot, the firmware version number appears in the power-up message when a console is attached and Monitor is enabled. Press the front panel reset button to obtain this message.

  • Page 89: Serial Connector Pin Numbering

    This appendix lists pin assignments for port interfaces on CS/2500 and CS/2600 series communications servers. The CS/2500 and CS/2600 include three types of port interfaces: Ten serial RS-232-D or RS-422 connectors One 802.3 Ethernet (transceiver) connector One parallel printer connector...

  • Page 90: Rs-232 Serial Port Pin Assignments

    This connection minimizes the potential for equipment damage caused by electrostatic discharges. On models CS/2500 and CS/2600, the chassis ground connection on serial ports can be made only through the connector headshells. Do not use pin 1 for this connection, since it is not connected to the chassis.

  • Page 91: Cable Wiring For Serial Port In Regular Rs-422 Mode

    RS-422 mode. Figure A-3 shows cable wiring when all ports are configured for automatic RS-422 port selection. CS/2500 Pin Figure A-2 Cable Wiring for Serial Port in Regular RS-422 Mode RS-232- 3Com...

  • Page 92: Cable Wiring For Serial Port In Automatic Rs-422 Selection Mode

    A: P PPENDIX SSIGNMENTS CS/2500 Pin Figure A-3 Cable Wiring for Serial Port in Automatic RS-422 Selection Mode Transceiver Figure A-4 shows pin numbering for the transceiver connector. Connector Table A-2 lists pin assignments for this connector. Figure A-4 Transceiver Connector Pin Numbers...

  • Page 93: Printer Port Pin Numbers

    † Current should not exceed 500 mA. Parallel Printer Port CS/2500 and CS/2600 servers include a printer port (labeled “Parallel Printer”) for connecting the server to Centronics-type parallel printers. Figure A-5 shows pin numbers for this port. Table A-3 lists pin assignments.
  • Page 94 A: P PPENDIX SSIGNMENTS Table A-3 Printer Port Pin Assignments (continued) Pin (Server Interface) 23-25 Pin (Printer Interface) Signal Data7 Data8 Acknowledge Busy Out of paper SLCT Unassigned Error Initialize Unassigned Signal ground Signal ground Signal ground Signal ground Signal ground —...
  • Page 95 The server may not always be able to report a failure on the console (for example, CPU failure). If you receive an error message, refer to Chapter 6, “Troubleshooting.” If you still receive an error message, contact 3Com or your network supplier. Refer to Appendix D, “Technical Support,” for technical support information.
  • Page 96 SIO - Passed <xx> ports No errors were encountered in SIO self-tests. The number of ports on the server is <xx>. Typical power-on diagnostics on a CS/2500 series server look like this: Series 2000 Power-up CPU - Passed 2Mbyte RAM C3 MMON rev. xyz...
  • Page 97 Entering the Monitor To access the monitor utility, you must attach a terminal to the console port, located on the CS/2500 series server’s back panel. Configure the terminal to 9600 bps, 8 data bits, 1 stop bit, and no parity.
  • Page 98 2 Reset the server by pressing the reset switch on the front panel. Because the boot source has been set to Monitor, the server enters the monitor utility and displays the following message: 3Com Corporation CS/2000 Series Monitor > If the Server Becomes Nonfunctional...

  • Page 99: Entering The Monitor C

    Entering this command performs a soft reset, which resets the monitor’s stack and internal variables and the Ethernet and serial controllers. At this point, 3Com or your network supplier may ask you to perform a memory dump. For information on memory dumps, refer to “Memory...

  • Page 100: Firmware Commands

    C: M PPENDIX ONITOR Using Commands While in monitor mode you can boot or reset the server and perform diagnostic tasks and other functions by entering commands. You must be in monitor mode to use these commands. When you are finished, reset the server by pressing the reset switch on the front panel.
  • Page 101 The <filename> and <address> parameters specify the name of the bootfile and the location in memory where it should be loaded. For example, enter from memory location 0x4000010. If you do not specify a parameter, the server attempts to boot from file 0 on the diskette.
  • Page 102 Syntax Displays a list of all available commands and their syntax. Commands in Description the list that are not documented in this guide are for 3Com internal use only. Syntax Resets the monitor’s stack and internal variables (called a soft reset). It Description also resets the Ethernet and serial controllers.

  • Page 103: On-Line Technical Services

    3Com provides easy access to technical support information through a variety of services. This appendix describes these services. On-line Technical 3Com offers worldwide product support seven days a week, 24 hours a Services day, through the following on-line systems: 3Com Bulletin Board Service (3ComBBS) World Wide Web site ThreeComForum on CompuServe®...

  • Page 104: Access By Isdn

    ThreeComForum on ThreeComForum is a CompuServe-based service containing patches, CompuServe software, drivers, and technical articles about all 3Com products, as well as a messaging section for peer support. To use ThreeComForum, you need a CompuServe account. To use ThreeComForum: 1 Log on to CompuServe.

  • Page 105: Comfacts Automated Fax Service

    3ComFacts Automated 3Com Corporation’s interactive fax service, 3ComFacts, provides data Fax Service sheets, technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, seven days a week. Call 3ComFacts using your touch-tone telephone. International access numbers are: Country Hong Kong U.K.
  • Page 106 D: T PPENDIX ECHNICAL UPPORT If you are unable to contact your network supplier, see the following section on how to contact 3Com.

  • Page 107: Support From 3Com

    If you are unable to receive support from your network supplier, technical support contracts are available from 3Com. In the U.S. and Canada, call (800) 876-3266 for customer service. If you are outside the U.S. and Canada, contact your local 3Com sales office to find your authorized service provider: Country...
  • Page 108 D: T PPENDIX ECHNICAL Country Europe Outside Europe, U.S., and Canada (1) (408) 492 1790 10/25/95 UPPORT Telephone Number 31 30 60 29900, option 5 Fax Number (44) (1442) 275822 (1) (408) 764 7290...
  • Page 109 NDEX Symbols ! command C-6 ? command C-6 Numerics 3Com Bulletin Board Service (3ComBBS) D-1 3Com sales offices D-4 3ComFacts D-3 Address Discovery Protocol description 4-10 parameters 4-10 address, Ethernet 3-7, 4-3 automatic RS-422 port selection 4-14 Auto-Reboot parameter 4-6...

  • Page 110: Electrical Requirements

    NDEX cover description 1-4 removing 5-6 replacing 5-15 current consumption, floppy disk drive, 1-11 damage, shipping 2-1 Data Received LED 1-6 DE command C-5 deleting file from diskette C-5 DF command C-5 diagnostic messages B-1 diagnostics. See troubleshooting dimensions 1-10 diskette backup copy 4-1 booting from 3-3, 3-6...

  • Page 111: At Startup C

    installation cabling 2-4 to 2-9 mounting 2-2 to 2-4 preparation 2-1 internal disk drive. See diskette drive interrupt switch. See hardware interrupt switch IP address. See IP/TFTP parameters IP security option 4-11 IP/TFTP parameters 4-9, 4-11 K command C-6 LED indicators diskette drive 3-8 front panel 1-5, 3-2, 3-7 listing files on diskette C-5...
  • Page 112 NDEX rack mount 1-10, 2-2 RAM, replacing 5-13 RARP protocol 4-10 RBCS server Boot Protocol parameter 4-8 booting from 3-2 dumping memory to 6-5, C-6 installing software 3-2 Network Boot String parameter 4-8 reboot Auto-Reboot parameter 4-6 number of reboots 4-7 remote 3-3 Remote Boot and Configuration Service server.
  • Page 113 startup problems 6-1 to 6-3 UP command C-6 upgrades removing cover 5-6 replacing cover 5-15 diskette drive 5-8 EPROMs 5-14 memory chips 5-13 power supply module 5-10 version, firmware 3-7 wall mount 2-4 wiring information. See pin assignments NDEX...
  • Page 114 NDEX...
  • Page 115 Spare parts and spares kits If a product does not operate as warranted during the applicable warranty period, 3Com shall, at its option and expense, repair the defective product or part, deliver to Customer an equivalent product or part to replace the defective item, or refund to Customer the purchase price paid for the defective product.
  • Page 116 5400 Bayfront Plaza Santa Clara, CA 95052-8145 (408) 764-5000 1/1/94...

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