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Network Storage Server 20 (3C19500)
Network Storage Server 40 (3C19501)
User Guide


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   Summary of Contents for 3Com OfficeConnect 3C19500

  • Page 1 OfficeConnect ® Network Storage Server 20 (3C19500) Network Storage Server 40 (3C19501) User Guide...
  • Page 2 LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.
  • Page 3: Table Of Contents

    ONTENTS About this Guide 5 Introducing the OfficeConnect Network Storage Server 7 Positioning the Network Storage Server 12 Choosing a Suitable Site 12 Stacking the Network Storage Server 12 Powering Up and Powering Down 14 Powering Up the Network Storage Server 14 Powering Down the Network Storage Server 14 Using the Network Storage Server 15 Who Can Access the Network Storage Server? 15...
  • Page 4 Cable Specifications 39 Technical Support 40 Online Technical Services 40 World Wide Web Site 40 Support from Your Network Supplier 41 Support from 3Com 41 Returning Products for Repair 43 Glossary 44 3Com Corporation Limited Warranty 48 Regulatory Notices 51...
  • Page 5: About This Guide

    Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com World Wide Web site: Naming Convention Throughout this guide, the OfficeConnect Network Storage Server 20 and the OfficeConnect Network Storage Server 40 are referred to as “the Network Storage Server”.
  • Page 6 For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page: Product Registration You can now register your OfficeConnect Network Storage Server on the 3Com web site and receive up-to-date information on your product:
  • Page 7: Introducing The Officeconnect Network Storage Server

    NTRODUCING THE Welcome to the world of networking with 3Com modern business environment, communication and sharing information is crucial. Computer networks have proved to be one of the fastest modes of communication but, until recently, only large businesses could afford the networking advantage. The ®...
  • Page 8 Summary of Features The Network Storage Server has the following features: One auto-negotiating Ethernet or Fast Ethernet port so you can install the Network Storage Server in an Ethernet (10 Mbps) network, a Fast Ethernet (100 Mbps) network or a dual-speed (10 or 100 Mbps) network.
  • Page 9 The Network Storage Server — Front View Power LED Green indicates that the power supply to the Network Storage Server is present. Amber indicates the unit has either been shut down or is in Failsafe Mode. Green = ON Amber = Standby Alert Power Disk...
  • Page 10 The Network Storage Server — Rear View Power Adapter Socket Lock Slot Only use the 12V power This slot allows you to fit a adapter (part number security lock ( 3C16749) that is supplied and physically s with this Network Storage Network Storage Server to Server.
  • Page 11 LED Functions Table 2 explains how the LEDs on the front of the Network Storage Server function: Table 2 The Network Storage Server LED Function Table Color Appearance Meaning Alert LED Orange On or Flashing There is a potential problem. None The unit is working correctly.
  • Page 12: Positioning The Network Storage Server

    Water or moisture cannot enter the case of the unit. Air flow around the unit and through the vents on the side of the case is not restricted. 3Com recommend you provide a minimum of 25 mm (1 in.) clearance.
  • Page 13 Fitting Another Unit To fit another unit: Rest the second unit on top of the clip and align it with the front of the unit below. Press down gently on the unit to secure it onto the clip, ensuring the fastening pieces fit into the slots on the unit below, as shown in Figure 2 (picture 2).
  • Page 14: Powering Up And Powering Down

    OWERING P AND Powering Up the Network Storage Server To power up the Network Storage Server: Attach the power adapter to the power adapter socket located in the back of the Network Storage Server. Plug the other end into a power outlet. When power is supplied, the LEDs on the front of the Network Storage Server will flicker for approximately two minutes while it performs a Power On Self Test (POST).
  • Page 15: Using The Network Storage Server

    Access to these other Shares is determined by the Network Administrator. 3Com recommends you map a drive letter to the respective Share. Mapping a drive to the Share will allow you to access it quickly and reliably from Windows Explorer.
  • Page 16: Using The Administration System

    SING THE DMINISTRATION The Administration System The Administration System is a Web-based utility that allows a Network Administrator to configure the Network Storage Server and set up Shares, Users and Groups. The Administration System can also be used to configure the Network Storage Server itself, so that it functions efficiently within the network.
  • Page 17: Administration System Features

    For security reasons, 3Com recommends you change the Administration System’s default Password when your Network Storage Server has been configured correctly. Figure 3 Administration System Welcome Page Administration System Features There are five main sections to the Administration System. These...
  • Page 18 The company has sensitive information that only a few employees in the company can view. Establish a read only with password Share. This will ensure that people who do not know the password will not be able to view the information. People with the password will be able to view it but not change it.
  • Page 19 Read Only All Users have read-only access to the files and directories in this Share without needing a password, but they cannot modify or delete any of them. Users do not need to be set up for this option. Full Access with Password This Share is protected by a password set by the Network Administrator.
  • Page 20: Configuration

    The Commands section allows you to: Shut down the Network Storage Server. Save its configuration settings. 3Com recommends you make regular backups of your configuration settings as it may prove useful if you need to restore them at a later date.
  • Page 21: Failsafe Mode

    AILSAFE The Network Storage Server has a Web-based feature called the Failsafe Mode that allows you to: Upgrade the Operating System Reset the administration password Backup the current configuration settings Restore the previous configuration settings Run a Hard Disk check Erase the Hard Disk Restore the unit to its factory defaults Save the system logs as a single file...
  • Page 22: Failsafe Mode Options

    The Network Storage Server logs every operation performed on it. Saving the system logs as a single file is useful because it can be e-mailed to 3Com Technical Support for analysis as a .tgz file if a problem cannot be resolved.
  • Page 23: Replacing A Faulty Hard Disk

    Hard Disk will only work with the OfficeConnect Network Storage Server 40 (3C19501). The Hard Disks are not interchangeable. If 3Com Technical Support cannot resolve your Hard Disk problem, you may have to purchase a replacement Hard Disk. Replacement Hard Disks are only available from 3Com.
  • Page 24: Replacing The Hard Disk

    Replacing the Hard Disk Once you have received your new Hard Disk, you are ready to replace the faulty one. The Hard Disk arrives pre-imaged with the Operating System installed, so there is no need to format the Hard Disk after installation. CAUTION: When you replace the Hard Disk, undo the screws that secure the blanking plate and the Hard Disk with a suitable tool.
  • Page 25 Undo the two screws on the Network Storage Server’s blanking plate and remove it. Keep the blanking plate and the fixings in a safe place. Disconnect the IDE cable and the internal power supply connector from the back of the Hard Disk. Undo the four screws that secure the supporting tray and the Hard Disk to the Network Storage Server from the underside of the Network Storage Server.
  • Page 26: Rebooting The Network Storage Server

    Rebooting the Network Storage Server There are two ways to reboot your Network Storage Server. The method used to reboot the Network Storage Server depends on whether you have previously backed up your configuration settings or not. The configuration settings includes information such as the IP address;...
  • Page 27: Ip Addressing

    IP A DDRESSING The Internet Protocol Suite The Internet protocol suite consists of a well-defined set of communications protocols and several standard application protocols. Transmission Control Protocol/Internet Protocol (TCP/IP) is probably the most widely known and is a combination of two of the protocols (IP and TCP) working together.
  • Page 28 An example IP address is ‘’. However, the size of the network determines the structure of this IP Address. In using the Network Storage Server, you will probably only encounter two types of IP Address and subnet mask structures. Type One In a small network, the IP address of ‘’...
  • Page 29: How Does A Device Obtain An Ip Address And Subnet Mask

    How does a Device Obtain an IP Address and Subnet Mask? There are three different ways to obtain an IP address and the subnet mask. These are: Dynamic Host Configuration Protocol (DHCP) Addressing Static Addressing Automatic Addressing (Auto-IP Addressing) DHCP Addressing If your network contains a DHCP server, the Network Storage Server will obtain an IP address and subnet mask automatically.
  • Page 30: Troubleshooting

    If you need to replace it, make sure it is with the model manufactured by 3Com (part number 3C16749). Do not use any other power adapter with the Network Storage Server.
  • Page 31: Lan Leds Are Off

    The Alert LED will appear permanently on when there is a problem with the Hard Disk. The Alert LED will be accompanied by a sequence of LEDs lit on the Disk Space Used LEDs. If either of the Alerts below occur (see Figure 7 contact Technical Support.
  • Page 32: Cannot Access Files On The Network Storage Server

    Cannot Access Files on the Network Storage Server If the Network Storage Server can be seen on the network, but cannot be accessed, check that: The computer has been mapped to the Network Storage Server. The Share has been set up for sharing and is not password protected.
  • Page 33: Cannot Access The Failsafe Mode

    No Servers Found If during installation, the Discovery Application displays an error message that reads ‘No Server Found’, follow the procedure below to determine the possible cause. Check that the PC running the Discovery Application has access to the network. Open Network Neighborhood and look for other computers.
  • Page 34: Frequently Asked Questions

    REQUENTLY SKED Q. Can I connect more than one Network Storage Server in the same network? A. Yes. Provided you have a spare Ethernet or Fast Ethernet port on your Hub or Switch, you can connect as many Network Storage Servers as required. Q.
  • Page 35 3Com recommends you make regular backups of the data. See page 23 for further information. Q. What if the installation process goes wrong? A. Try reinstalling the Network Storage Server using the OfficeConnect Server Discovery Application. See the “Quick Installation Guide”...
  • Page 36: Safety Information

    AFETY NFORMATION Safety Information WARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions carefully. You must read the following safety information carefully before you install or remove the unit: Exceptional care must be taken during installation and removal of the unit.
  • Page 37: Consignes Importantes De Sécurité

    Consignes importantes de sécurité AVERTISSEMENT: Les avertissements présentent des consignes que vous devez respecter pour garantir votre sécurité personnelle. Vous devez respecter attentivement toutes les consignes. Nous vous demandons de lire attentivement les consignes suivantes de sécurité avant d’installer ou de retirer l’appareil: Faites très attention lors de l'installation et de la dépose du groupe.
  • Page 38: Technical Specifications

    ECHNICAL PECIFICATIONS This section lists the technical specifications for the OfficeConnect Network Storage Server. Interfaces Ethernet/Fast Ethernet — 1 for the Network Storage Server Operating Temperature 0 °C to 40 °C (32 °F to 105 °F) Power 12V DC OfficeConnect Power Adapter Humidity 0 % to 90 % (non-condensing) humidity Dimensions...
  • Page 39: System Requirements

    System Requirements Operating Systems The Network Storage Server will support the following Operating Systems: Windows 95a Windows 95b Windows 95b Version 2.5 Windows 98 Windows 98 Second Edition (SE) Windows NT 4.0 (Service Pack 4.0 and later) Ethernet Performance The Network Storage Server complies to the IEEE 802.3i, u and x specifications.
  • Page 40: Technical Support

    For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site. Online Technical Services 3Com offers worldwide product support 24 hours a day, 7 days a week, through the following online systems: World Wide Web site...
  • Page 41: Support From Your Network Supplier

    If you are unable to contact your network supplier, see the following section on how to contact 3Com. Support from 3Com If you are unable to obtain assistance from the 3Com online technical resources or from your network supplier, 3Com offers technical telephone support services. To find out more about your support options, call the 3Com technical telephone support number at the location nearest to you.
  • Page 42 0800 13 3266 Colombia 517 629 4827 Mexico 01 800 CARE (01 800 2273) Puerto Rico 800 666 5065 South America 1800 666 5065 North America 1 800 NET 3Com (1 800 638 3266) Enterprise Customers: 1 800 876 3266...
  • Page 43: Returning Products For Repair

    Returning Products for Repair Before you send a product directly to 3Com for repair, you must first obtain an authorization number. Products sent to 3Com without authorization numbers will be returned to the sender unopened, at the sender’s expense. To obtain an authorization number, call or fax:...
  • Page 44: Glossary

    LOSSARY 10BASE-T The IEEE specification for 10 Mbps Ethernet over Category 3, 4 or 5 twisted pair cable. 100BASE-TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5 twisted-pair cable. Auto-IP (Automatic-IP) Auto-IP addressing occurs when a device on the network allocates an IP address to itself. Auto-negotiation Some devices in the OfficeConnect range support auto-negotiation.
  • Page 45 Fast Ethernet An Ethernet system that is designed to operate at 100 Mbps. GB Gigabyte. Group A Group sets up multiple access rights for a cluster of Users for a specific Share on the Network Storage Server’s Administration System. Full Duplex A system that allows packets to be transmitted and received at the same time and, in effect, doubles the potential throughput of a link.
  • Page 46 Modem (MOdulator-DEModulator) A device that adapts a computer's digital signal into audio frequencies (analog) for transmission down a telephone line, and changes them back again. Transmission speeds of modems generally range from 2,400 bps (2.4 Kbps) to 56,000 bps (56 Kbps). Multicast A packet sent to a specific group of endstations on a network.
  • Page 47 Subnet Mask A subnet mask is a term used to indicate how much of an IP address is used to identify the network. An IP address has two parts, the first identifies the network and the second identifies the machine or PC on the network. Subnets A network that is a component of a larger network.
  • Page 48: 3com Corporation Limited Warranty

    (90) days from the date of purchase from 3Com or its authorized reseller. 3Com warrants the media containing software against failure during the warranty period. No updates are provided, unless specifically included in the Included Services section.
  • Page 49 3Com's expense, not later than thirty (30) days after 3Com receives the defective product, and 3Com will retain risk of loss or damage until the item is delivered to Customer. 3Com shall not be responsible for any software, firmware, information, or memory data of Customer contained in, stored on, or integrated with any products returned to 3Com for repair, whether under warranty or not.
  • Page 50 5400 Bayfront Plaza P.O. Box 58145 Santa Clara, CA 95052-8145 (408) 326-5000 November, 2000 3Com reserves the right to modify or cancel this offering at any time, without advance notice. This offering is not available where prohibited or restricted by law.
  • Page 51: Regulatory Notices

    EGULATORY OTICES FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules, and the Canadian Department of Communications Equipment Standards entitled, “Digital Apparatus,” ICES-003. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 52 Part Number: DUA1950-0AAA01 Rev: 01 Published November 2000...

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