3Com NJ220 - Manuals

About the IntelliJack 3 The following diagram shows the back view of the IntelliJack: 4 LEDs Indicates network connection status. Indicates power status. 5 Power socket Can be used to power the IntelliJack with a local power supply (available for purchase from 3Com); required if your network does no...

4 C HAPTER 1: I NSTALLING THE NJ220 I NTELLI J ACK Before You Begin Before you begin installation, register your product at: http://eSupport.3com.com/. The IntelliJack is available in single- and 20-packs. Before you begin the installation, make sure you have the following items, which are included ...

Installing the IntelliJack 5 Installing the IntelliJack Installing the IntelliJack consists of the following steps: 1 Set up the power supply (page 6). 2 Install the adapter plate and pass-through ports (page 8). 3 Plan the installation (page 9). 4 Set up the network cabling at your site (page 10). ...

6 C HAPTER 1: I NSTALLING THE NJ220 I NTELLI J ACK The following diagram displays an overview of the recommended installation, where the IntelliJack is being connected to an Ethernet network cable that is terminated with a female RJ-45 connector. Detailed installation instructions are included in th...

Installing the IntelliJack 7 The multi-port Ethernet power supply from 3Com connects to an existing Ethernet or Fast Ethernet infrastructure with standard Category 5 or Category 5e UTP cabling, and powers up to 24 IntelliJacks. See “Obtaining Optional Components” on page 4 for ordering information. ...

8 C HAPTER 1: I NSTALLING THE NJ220 I NTELLI J ACK Installing the Adapter Plate and Pass-Through Ports Install the blank adapter plate, or if you want to use pass-through ports for connecting an analog or PBX digital telephone or for setting up a connection to a separate network segment, purchase su...

Installing the IntelliJack 9 Planning the Installation When installed, the back of the IntelliJack extends into a wall or cubicle opening 1.5 inches. Because the depth of some wall and cubicle openings differ, observe the following requirements and recommendations before installing the IntelliJack: ...

10 C HAPTER 1: I NSTALLING THE NJ220 I NTELLI J ACK Setting up the Network Cabling at Your Site The network cabling at your site (from the wiring closet to the wall or cubicle opening) may already be installed. If it is not, install the cabling following these general guidelines. 1 Connect one end o...

Installing the IntelliJack 11 • If the end of the cable is terminated with a male connector, connect the network cable directly into the Ethernet uplink port. Mounting the IntelliJack After connecting the IntelliJack to the network, use the two provided screws to mount the IntelliJack in any standar...

12 C HAPTER 1: I NSTALLING THE NJ220 I NTELLI J ACK Connecting the Local Power Supply (Optional) If your network does not support Power Over Ethernet, or if you are not using a single-port or multi-port Ethernet power supply, you must purchase a local power supply from 3Com (see “Obtaining Optional ...

Checking the LEDs 13 5 Plug the local power supply into the power source. Connecting Devices to the IntelliJack After the IntelliJack is installed and mounted, connect your networking devices (such as computers, printers, etc.) to any of the four switched ports on the front of the IntelliJack. If yo...

2 I NSTALLING THE C ONFIGURATION M ANAGERS Once you have installed the NJ220 hardware, you need to configure it for use on your particular network. To configure the NJ220, install the Local and Central Configuration managers. System Requirements The machine you install the software on should meet th...

16 C HAPTER 2: I NSTALLING THE C ONFIGURATION M ANAGERS 2 If your computer is configured to Auto-Play CDs, the installation will start automatically. If not, double-click the setup.exe icon on the CD, and you will see this window: 3 Click Next to continue.

Installing the Local and Central Configuration Managers 17 4 Carefully read the license agreement. If you agree, click “Yes, I accept” and Next to continue. 5 The installation will present Readme Information. This is also found in the Readme.txt file on the installation CD. Please read the informati...

20 C HAPTER 2: I NSTALLING THE C ONFIGURATION M ANAGERS 8 Select a typical or custom setup and click Next. The Typical installation will install both the Local Configuration Manager and the Central Configuration Manager on your system. The Custom installation option lets you install just one of the ...

Installing the Web Configuration Manager 21 10 When the installation has completed, click the Finish button to close the installation utility. The installation utility will create two shortcut icons on the Desktop--one for the Local Configuration Manager and one for the Central Configuration Manager...

22 C HAPTER 2: I NSTALLING THE C ONFIGURATION M ANAGERS To install the 3Com IJ/NJ Web Configuration Manager on a Windows 2000 computer, follow these steps: 1 If your machine does not have the Java Development Kit (JDK) installed, download the installation program from Sun’s Web site and install JDK ...

3 U SING THE L OCAL C ONFIGURATION M ANAGER Initializing the NJ220 IntelliJack Once you have installed the NJ220 hardware on your network and the Local Configuration Manager software on your computer, you need to perform an initial configuration of the IntelliJack. 1 The first step is to connect you...

Setting Advanced Options 27 Setting Advanced Options If you want to change the default password of the NJ220 or change SNMP community strings, you can configure these settings from either the Local Configuration Manager or the Central Configuration Manager (covered in the next chapter). In the Local...

30 C HAPTER 4: U SING THE C ENTRAL C ONFIGURATION M ANAGER 1 Open the Central Configuration Manager by double-clicking on the IJ NJ Cent Config Mgr desktop icon. When it launches, you will see a window similar to this one: 2 Select Discovery from the Devices menu or click the Discover button on the ...

Discovering NJ220 Devices on Your Network 31 3 You can discover new devices based on a specific subnet or on a specific range of IP addresses. a To discover devices by subnet, select that option on the screen. Click the Add button to add a new subnet to the discovery list. The following box will app...

Viewing Device Properties 33 Viewing Device Properties Once the database is populated with NJ220 IntelliJacks on your network, you can begin to manage those devices. The main window of the Central Configuration Manager shows a list of devices in the current database with the information retrieved du...

Viewing Device Properties 35 You can double-click on any of the ports to find out more information or configure that particular port. Click OK to save your changes or Cancel to discard them. Product Information 6 Under the Product Information box, you can see the current firmware version of the Inte...

36 C HAPTER 4: U SING THE C ENTRAL C ONFIGURATION M ANAGER Hardware Settings 7 Click on the Hardware Settings tab to view status information about the switch. Several fields in this window can be edited, a few cannot. You can change the values of the fields with drop-down lists: Priority Schedule Po...

Viewing Device Properties 39 Statistics Log 11 Click on the Statistics Log tab. From this view you can see statistics about the number of good or bad packets each port has received and transmitted, based on how you have configured the Counter Mode setting (see step 7 on page 36). The bottom half of ...

40 C HAPTER 4: U SING THE C ENTRAL C ONFIGURATION M ANAGER You can reset all counters to zero by clicking Clear. To save device data to a log file, click Get Device Log. This will prompt you for a filename and location to save the log file. SNMP Settings 13 Click on the SNMP Settings tab to see the ...

Viewing Device Properties 41 15 To edit a Trap Destination, enter the IP address of your SNMP management console in the field. This eliminates the need to build a Trap Destination Table via a Management Information Database (MIB) browser. Advanced Settings 16 Click on the Advanced Settings tab to se...

42 C HAPTER 4: U SING THE C ENTRAL C ONFIGURATION M ANAGER Different Alert Levels notify you of specific events happening with the IntelliJack. Each level above 0 provides different types of event alerts as described below: Next to the Event Alert Level field is a box labeled Receive Alert. If you a...

Changing Device Configuration 43 Changing Device Configuration Many of the properties that you can view from the Device Property windows can be changed from the Device Configuration window. Here’s how to use this feature: 1 Select one or more IntelliJacks from the devices list. 2 Select Configuratio...

44 C HAPTER 4: U SING THE C ENTRAL C ONFIGURATION M ANAGER This window has five tabs across the top--General Configuration, Priority & VLAN Configuration, Security Configuration, SNMP Configuration, and Advanced Configuration. Check the box next to any setting you want to change from within thes...

Changing Device Configuration 47 14 The default setting for the Default Priority Level is 802.1p Priority 0 or 1. You can change this setting to Priority 2 or 3, Priority 4 or 5, or Priority 6 or 7. The IntelliJack has four traffic queues with two priorities per queue. The lowest numbers (0 and 1) h...

Changing Device Configuration 49 Security Configuration 21 Select the Security Configuration tab to set the security options of the NJ220 IntelliJack. Password 22 You can change the device password (the default password is “ password ”), and either enable or disable local configuration. 802.1X 23 To...

52 C HAPTER 4: U SING THE C ENTRAL C ONFIGURATION M ANAGER SNMP Configuration 27 Click the SNMP Configuration tab to change the SNMP settings of the NJ220. 28 You can either Enable or Disable the “Set” operation of the IntelliJack. 29 Configure the “Get” and “Set” Community Strings for SNMP manageme...

Changing Device Configuration 53 • An Auth Fail Trap indicates a wrong Community name in the SNMP transmission. • Vendor Specific Traps indicate 802.1X User Login, 802.1X User Logout, and 802.1X Login Failure when the IntelliJack is configured for 802.1X. 31 You can Set Trap Destination by entering ...

54 C HAPTER 4: U SING THE C ENTRAL C ONFIGURATION M ANAGER You can change the Alert Level if you want to be notified of specific events happening with the IntelliJack. Each level above 0 provides different types of event alerts as described below: Port Based Controls 35 For the next three settings, ...

Changing Device Configuration 55 With Data Rate Control settings, you can reduce the network traffic speed on the IntelliJack to as little as 128 Kbps. This can be useful if the machine is in a public area where you only want to provide a minimum speed connection. Even though there are only eight ra...

Finding Computers Connected to NJ220 Devices 59 Finding Computers Connected to NJ220 Devices Occasionally you may need to find out which IntelliJack a networked device, such as a PC, is connected to. This is one of the many situations where the Location Information field of the NJ220 can be very use...

Upgrading the NJ220 Firmware 61 5 Select the time to perform the upgrade. You can either send the update file immediately or select a specific time and date to send the file. You may, for example, want to perform an upgrade during off hours such as a weekend. 6 Click Next and a window like this will...

Upgrading the NJ220 Firmware 63 Viewing Log Files The Central Configuration Manager creates a log file with details of the firmware upgrades, configuration operations, and alert messages from the IntelliJack. This file is in the Central Configurator\Log subdirectory under the directory where you ins...

65 A Troubleshooting the NJ220 If you encounter problems with the IntelliJack: ■ Verify the IntelliJack is receiving power by viewing the Power LED (it should be on). If the Power LED is not on, make sure that: ■ If using power over Ethernet, the other end of the network cable is plugged into a swit...

B O BTAINING S UPPORT FOR Y OUR 3C OM P RODUCTS 3Com offers product registration, case management, and repair services through eSupport.3com.com . You must have a user name and password to access these services, which are described in this appendix. Register Your Product to Gain Service Benefits To ...

68 A PPENDIX B: O BTAINING S UPPORT FOR Y OUR 3C OM P RODUCTS success of your networking projects. For more information on 3Com Extended Warranty and Professional Services, see: http://www.3com.com/ Contact your authorized 3Com reseller or 3Com for additional product and support information. See the...

Contact Us 69 When you contact 3Com for assistance, please have the following information ready: ■ Product model name, part number, and serial number ■ A list of system hardware and software, including revision level ■ Diagnostic error messages ■ Details about recent configuration changes, if applic...

71 C Product Specifications Hardware Power consumption <5 watts without power forwarding Maximum 13 watts with power forwarding (depending on the device drawing power) Network Interface 10 Mbps Ethernet10BASE-T Ethernet IEEE 802.3 industry standard for a 10 Mbps baseband CSMA/CD local area networ...

Product Specifications 72 MIB Support 3Com Proprietary MIBs Standard Traps Proprietary Traps MIB II (RFC 1213) Bridge MIB (RFC 1493) Ether-like MIB (RFC 1643) MIB for MAUs (RFC 2668) MIB for bridge with extensions (RFC 2674) 802.1x MIBs RADIUS Authentication Client MIB (RFC 2618) RADIUS Accounting C...

73 Power forwarding Power forwarding Port number 1 can be used with any standard networking device as well as to power a device such as a VoIP telephone on a network that uses IEEE 802.3af-compatible Power Over Ethernet. RMON Counters InUnicasts Total valid frames received with a unicast Destination...

R EGULATORY I NFORMATION FCC C OMPLIANCE This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause unde...

J APAN VCCI C OMPLIANCE Translation: This is a Class A product based upon the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may occur, in which case, the user may be requir...