3Com 3CBLSF26H - Manual

i Table of Contents 1 Getting Started ··········································································································································· 1-1 Introducing the Switch ·······························································································...

iii Save Configuration ························································································································ 3-78 Resetting the Switch ······················································································································ 3-79 Managi...

iv Contact Us ·············································································································································· 6-2 7 Safety Information ······················································································································...

1-1 1 Getting Started z This manual applies to the Baseline Switch 2250-SFP Plus, Baseline Switch 2226-SFP Plus, and Baseline Switch 2426-PWR Plus, which are hereinafter referred to as the switch. z This manual takes the Web interfaces of the Baseline Switch 2426-PWR Plus as an example. This chapter...

1-2 Feature Description Forwarding Modes Store and Forward. Duplex Modes Half and full duplex on all front panel ports. Auto MDI/MDIX Supported on all ports. If fiber SFP transceivers are used, Auto MDIX is not supported. Flow Control In full duplex operation all ports are supported. Traffic Priorit...

1-3 Figure 1-3 Baseline Switch 2250-SFP Plus 50-Port—front panel. LED Status Indicators The Switch provides LED indicators on the front panel for your convenience to monitor the switch. Table 1-2 describes the meanings of the LEDs. Table 1-2 Description on the LEDs of the Switch LED Status Descripti...

1-4 LED Status Description OFF The link has not been established, either nothing is connected to the port, or there is a problem: z Check that the attached device is powered on. z Check that the cable or fiber is the correct type and is not faulty. z For fiber connections, ensure that the receive (R...

1-5 Specification 2226-SFP 2426-PWR 2250-SFP Operating humidity (noncondensing) 20% to 85% Storage humidity (noncondensing) 10% to 90% Installing the Switch This section contains information that you need to install and set up the switch. It covers the following topics: z Before You Begin z Package ...

1-6 z Air flow around the unit and through the vents on the side of the case is not restricted (3Com recommends that you provide a minimum of 25 mm (1 in.) clearance). z The air is as free from dust as possible. z Temperature operating limits are not likely to be exceeded. It is recommended that the...

1-7 Figure 1-4 Rack Mounting the Unit 4) Repeat steps 2 and 3 for the other side of the unit. 5) Insert the unit into the 19-inch rack and secure with suitable screws (not provided). 6) Reconnect the cables. Placing Units On Top of Each Other If the switch units are free-standing, up to six units ca...

1-8 Checking for Correct Operation After you power on the switch, it automatically performs a power-on self-test (POST). During POST, the Power LED on the front panel of the switch flashes green. When POST is complete, the Power LED turns green. If the Power LED turns yellow after POST, it means tha...

1-10 SFP transceivers are keyed and can be properly inserted only one way. If the transceiver does not click when you insert it, remove it, turn it over, and reinsert it. 3) Remove the plastic protective cover, if fitted. 4) Connect the fiber cable. 5) Attach a male duplex LC connector on the networ...

1-11 Automatic IP Configuration using DHCP When you use the automatic IP configuration method, the switch tries to obtain its IP information without requesting user intervention from a DHCP server on the network. You should use the automatic IP configuration method if: z Your network uses DHCP to al...

2-1 2 Connecting To the Web Interface The switch has a built-in Web interface that you can use to set the user password, change the IP address that is assigned to the switch, and configure its advanced settings. This chapter introduces the setting the menu items and buttons that are available on the...

2-2 Default User and Password If you intend to manage the switch or to change the default password, you must log in with a valid user name and password. The switch has one default user name. The default user is listed in Table 2-2. Table 2-2 Default User and Password User Name Default Password Acces...

2-5 Menu Item Description Administration Contains tabs that allow you to: z Display selected port information for the entire switch. z Display individual port information. z Modify the port settings. Link Aggregation Contains tabs that allow you to: z Display link aggregation summary. z Create an ag...

3-1 3 Configuring the Switch Configuring System Access Network administrators can define user name, password, and access level for users using the System Access Interface. The Multi-Session Web feature is enabled on switch and allows 10 users to be created and access the switch concurrently. Access ...

3-2 The System Access Setup Page contains the following fields: Table 3-1 System Access Setup Page item description Item Description User Name Defines the user name. The default value is admin. Access Level Defines the user access level. The lowest user access level is Monitor and the highest is Man...

3-4 Table 3-3 System Access Summary Page item description Item Description User Name Displays the user name. Access Level Displays the user access level. Configuring IP and MAC Address Information This section contains information for defining IP interfaces, and includes the following sections: z De...

3-5 Configuring ARP Settings The Address Resolution Protocol (ARP) converts IP addresses into physical addresses, and maps the IP address to a MAC address. ARP allows a host to communicate with other hosts when only the IP addresses of its neighbors are known. This section includes the following top...

3-6 Figure 3-7 ARP Entries Remove Page The ARP Entries Remove Page contains the following fields: Table 3-6 ARP Entries Remove Page item description Item Description Clear ARP Table Entries Specifies the types of ARP entries that are cleared. The possible values are: z None: Maintains the ARP entrie...

3-7 Figure 3-8 ARP Settings Summary Page The ARP Settings Summary Page contains the following fields: Table 3-7 ARP Settings Summary Page item description Item Description Interface Indicates the VLAN for which ARP parameters are defined. IP Address Indicates the IP address, which is associated with...

3-11 Figure 3-14 Port Summary Page The Port Summary Page contains the following fields: Table 3-10 Port Summary Page item description Item Description State Filters the list of MAC addresses displayed according to the type of MAC address configuration. Possible values are: z All: Displays all MAC ad...

3-12 Defining Port Settings The Port Setup Page allows network managers to configure port parameters for specific ports. Click Port > Administration > Setup . The Port Setup Page opens. Figure 3-15 Port Setup Page The Port Setup Page contains the following fields: Table 3-11 Port Setup Page it...

3-13 z Before manually setting a port to full-duplex mode, verify that the device connected to the port is also manually set to the same speed and duplex setting. If connecting link partners are left to auto- negotiate for a link manually set on this switch to full-duplex, they will always negotiate...

3-14 Item Description Speed Displays the configured rate for the port. The port type determines what speed setting options are available. Port speeds can only be configured when auto negotiation is disabled. The possible field values are: z Auto: Use to automatically configure the port. z 10M: Indic...

3-16 Figure 3-19 Port PoE Summary Page The Port PoE Summary Page contains the following fields: Table 3-14 Port PoE Summary Page item description Item Description State Indicates the power source status. The possible field values are: z On: Indicates that the power supply unit is functioning. z Off:...

3-18 Item Description Jabbers Displays the total number of received packets that were longer than 9216 octets. This number excludes frame bits, but includes FCS octets that had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral octe...

3-20 Figure 3-22 Modify VLAN Page The Modify VLAN Page contains the following fields: Table 3-17 Modify VLAN Page item description Item Description Select a VLAN to modify Selects a VLAN to modify its settings. Select membership type Selects the membership type for each port on the VLAN. The possibl...

3-21 Figure 3-23 Modify Port VLAN Page The Modify Port VLAN Page contains the following fields: Table 3-18 Modify Port VLAN Page item description Item Description Select membership type Selects the membership type for each port on the VLAN. The possible field values are: z Untagged: Indicates the in...

3-22 Figure 3-25 VLAN Remove Page Viewing VLAN Details The VLAN Detail Page provides information and global parameters on VLANs configured on the system. Click Device > VLAN > VLAN Detail . The VLAN Detail Page opens. Figure 3-26 VLAN Detail Page The VLAN Detail Page contains the following inf...

3-23 Table 3-19 VLAN Detail Page item description Item Description Select a VLAN to Display Selects a VLAN to be display its settings Membership type Displays the membership type for each VLAN. The possible field values are: z Untagged: Indicates the interface is an untagged member of the VLAN. z Ta...

3-24 Table 3-20 VLAN Port Detail Page item description Item Description Untagged Membership Indicates the port is an untagged member of the VLAN. Tagged membership Indicates the port is a tagged member of a VLAN. VLAN tagged frames are forwarded by the interface. The frames contain VLAN information....

3-25 z Among the ports in an aggregation group that are in up state, the system determines the mater port with one of the following settings being the highest (in descending order) as the master port: full duplex/high speed, full duplex/low speed, half duplex/high speed, half duplex/low speed. The p...

3-26 Click Port > Link Aggregation > Create . The Link Aggregation Create Page opens. Figure 3-28 Link Aggregation Create Page The Link Aggregation Create Page includes the following fields: Table 3-21 Link Aggregation Create Page item description Item Description Enter Aggregation Group ID De...

3-28 Table 3-22 Link Aggregation Summary Page item description Item Description Group ID Displays the Link Aggregated Group ID. The field range is 1-6. Type Displays the type of link aggregation for the Group ID. The possible field value is Static or LACP. Ports Displays the member ports included in...

3-29 Figure 3-33 LACP Summary Page The LACP Summary Page contains the following fields: Table 3-24 LACP Summary Page item description Item Description Port-Priority Displays the LACP priority value for the port. LACP Timeout Displays the administrative LACP timeout. The possible field values are: z ...

3-30 network segment. All other ports are blocked, which means that they are prevented from forwarding traffic. The device supports the following STP versions: z Classic STP: Provides a single path between end stations, avoiding and eliminating loops. z Rapid STP: Detects and uses network topologies...

3-32 Modifying STP Interface Parameters The STP Interface Parameters Modify Page allows network managers to modify STP parameters to specific interfaces. Click Device > Spanning Tree > Modify . The STP Interface Parameters Modify Page opens. Figure 3-35 STP Interface Parameters Modify Page The...

3-33 Item Description Path Cost Defines the port contribution to the root path cost. When Default Path Cost is disabled, you can configure it; when Default Path Cost is enabled, you can not configure it , and the possible field values are: z 65535: Indicates Path Cost Default Values is short. This i...

3-35 Configuring IGMP Snooping This section contains information for configuring IGMP Snooping. When IGMP Snooping is enabled, all IGMP packets are forwarded to the CPU. The CPU analyzes the incoming packets and determines: z Which ports want to join which Multicast groups. z Which ports have Multic...

3-36 Item Description Select VLAN ID Specifies the VLAN ID IGMP Snooping Status Defines whether IGMP snooping is enabled on the VLAN. The possible field values are: z Enabled: Enables IGMP Snooping on the VLAN. z Disabled: Disables IGMP Snooping on the VLAN. This is the default value. IGMP Query Sta...

3-39 Table 3-30 MAC Based ACL Remove Page item description Item Description ACL Name Selects a MAC-based ACL for removal. Remove ACL Enables the ACL to be removed. To remove MAC-based ACL: 1) Select the ACL Name to be removed 2) Check Remove ACL. 3) Click Remove . To remove MAC-based ACL rules: 1) S...

3-40 Item Description CoS Classifies traffic based on the CoS tag value. CoS Mask Displays the CoS mask used to filter CoS tags. Ethertype Provides an identifier that differentiates between various types of protocols. Action Indicates the ACL forwarding action. In addition, the port can be shut down...

3-43 Table 3-33 IP Based ACL Remove Page item description Item Description ACL Name Selects an IP-based ACL for removal. Remove ACL Enables the ACL to be removed. To remove an IP-based ACL: 1) Select an ACL Name to be removed. 2) Check Remove ACL. 3) Click Remove . To remove IP-based ACL rules: 1) S...

3-44 Item Description Source IP Address Matches the source IP address to which packets are addressed to the ACL. Source Mask Indicates the source IP address mask. Destination IP Address Matches the destination IP address to which packets are addressed to the ACL. Destination Mask Indicates the desti...

3-46 Table 3-37 ACL Binding Summary Page item description Item Description MAC-based ACL Displays the MAC based ACL to which the interface is assigned. IP-based ACL Displays the IP based ACL to which the interface is assigned Configuring QoS Quality of Service (QoS) provides the ability to implement...

3-47 Table 3-38 CoS Setup Page item description Item Description QoS Mode Specifies if QoS is enabled on the switch. The possible values are: z Disabled: Restores the switch factory defaults for QoS values and disables configure QoS values on the switch. z Enabled: Enables configure QoS values on th...

3-48 Figure 3-51 Queue Setup Page The Queue Setup Page contains the following fields: Table 3-40 Queue Setup Page item description Item Description HQ-WRR This highest queue is transmitted first if any packets are in the highest queue. When the highest queue is exhausted, the remaining queues are se...

3-49 Table 3-41 CoS to Queue Setup Page item description Item Description Restore Defaults Restores the switch factory defaults for mapping CoS values to forwarding queues. Class of Service Specifies the CoS priority tag values, where 0 is the lowest and 7 is the highest. Queue Defines the traffic f...

3-50 Figure 3-54 DSCP to Queue Setup Page The DSCP to Queue Setup Page contains the following fields: Table 3-43 DSCP to Queue Setup Page item description Item Description Restore Defaults Restores the switch factory defaults for mapping DSCP values to a traffic forwarding queue. DSCP Displays the i...

3-51 Table 3-44 DSCP to Queue Summary Page item description Item Description DSCP Displays the incoming packet’s DSCP value. CoS Indicates the CoS value forwarding queue to which the DSCP priority is mapped. The possible field values are 0-7. Configuring Trust Mode The Trust Setup Page contains info...

3-52 Figure 3-57 Bandwidth Setup Page The Bandwidth Setup Page contains the following fields: Table 3-46 Bandwidth Setup Page item description Item Description Enable Ingress Rate Limit Enables setting an Ingress Rate Limit. Ingress Rate Limit Ingress Rate Limit Defines the ingress traffic limit for...

3-53 Figure 3-58 Bandwidth Summary Page The Bandwidth Summary Page contains the following fields: Table 3-47 Bandwidth Summary Page item description Item Description Status Indicates the ingress rate limiting status on the interface. The possible field values are: z Enabled: Ingress rate limiting is...

3-54 There are two operational modes for IP Phones: z IP phones are configured with VLAN-mode as enabled, ensuring that tagged packets are used for all communications. z If the IP phone’s VLAN-mode is disabled, the phone uses untagged packets. The phone uses untagged packets while retrieving the ini...

3-57 Figure 3-63 Voice VLAN OUI Summary Page Viewing Voice VLAN The Voice VLAN Summary Page contains information about the Voice VLAN currently enabled on the switch, including the ports enabled and included in the Voice VLAN. Click Device > QoS > VoIP Traffic Setting . The Voice VLAN Summary ...

3-58 Configuring SNMP Simple Network Management Protocol (SNMP) provides a method for managing network devices. The switch supports the following SNMP versions: z SNMP version 1 z SNMP version 2c The SNMP agents maintain a list of variables, which are used to manage the switch. The variables are def...

3-60 Figure 3-67 SNMP Traps Setup Page The SNMP Traps Setup Page contains the following fields: Table 3-53 SNMP Traps Setup Page item description Item Description Recipients IP Address Defines the IP address to which the traps are sent. Community String Defines the community string of the trap manag...

3-61 Configuring LLDP LLDP Overview The Link Layer Discovery Protocol (LLDP) operates on the data link layer. With LLDP, a device can store and maintain information about itself and the directly-connected neighbor devices for network administrators to check link status. LLDP Operating Mode LLDP can ...

3-62 Item Description Transmit Interval Set the interval for sending LLDPDUs. A port operating in TxRx mode or Tx mode sends LLDPDUs to its directly connected device periodically. By default, the interval is 30 seconds. TLL Hold Multiplier Set the TTL multiplier. You can configure the TTL of locally...

3-64 Item Description IEEE 802.3 The IEEE 802.3 defined LLDP TLVs supported by the device include the following: z MAC/PHY: The rate, duplex mode, and speed auto-negotiation state of the port. z POE Power: Power supply capability of the port. z Link Aggregation: Indicates the support of the port for...

3-65 Table 3-56 Global LLDP Information and Received LLDP Information Page item description Item Description Added Neighbor Total number of discovered neighbors Deleted Neighbor Total number of deleted neighbors Discarded LLDP's Packet Total number of dropped LLDPDUs Aginged Neighbor Total number of...

3-66 Figure 3-72 Port-Level LLDP Information Page Select a port, and then the LLDP information of the port will be displayed in the Summary box. The displayed information includes LLDP status and statistics of the port and the status of the TLVs sent by the port. Managing Switch Security The Managem...

3-67 Defining 802.1X Authentication The 802.1X Setup Page contains information for configuring 802.1X global settings on the switch and defining specific 802.1X setting for each port individually. Click Security > 802.1X > Setup . The 802.1X Setup Page opens. Figure 3-73 802.1X Setup Page The ...

3-68 Item Description Guest VLAN Specifies whether the Guest VLAN is enabled on the port. The possible field values are: z Enabled: Enables using a Guest VLAN for unauthorized ports. If a Guest VLAN is enabled, the unauthorized port automatically joins the VLAN selected from the Guest VLAN ID dropdo...

3-69 Item Description Reauthentication Period Displays the time span (in seconds) in which the selected port is reauthenticated. The field default is 3600 seconds. Defining Radius Client Remote Authentication Dial-in User Service (Radius) is a logon authentication protocol that uses software running...

3-70 Configuring LDB If your switch is not enabled with an advanced authentication method, like RADIUS, for authentication, you can use the local database (LDB) feature to perform local authentication (port-based authentication).After the switch is enabled with the LDB feature and related access rig...

3-72 Figure 3-79 Configure a user account z To add a user account, click Add . z To modify the password of a user, select the user, enter a new password in the Password text box, and click Modify . Displaying LDB On this page, you can view the LDB mode, state and user passing authentication on each ...

3-73 Item Description Current Port State Displays the current state of the port. z NORMAL: The user on the port passed the authentication. z BLOCK: The port is in the initial state after the LDB feature is enabled or the port is aged out. z SLEEP: The number of the user’s authentication attempts exc...

3-74 Table 3-62 Broadcast Storm Setup Page item description Item Description Broadcast Mode Defines whether forwarding broadcast packet type is enabled on the interface. The possible field values are: z Disabled: Disables broadcast control on the selected port. This is the default. z Broadcast: Enab...

3-75 z Configuring System Time z Save Configuration z Resetting the Switch Viewing Basic Settings The Device Summary Page, which automatically loads after you log on to the Web interface, provides a snapshot of the switch’s basic settings and versions of current components. The Device Summary Sectio...

3-76 Item Description Poll Now Enables polling the ports for port information including speed, utilization and port status. Viewing Color Keys The Color Key Page provides information regarding the RJ45 or SFP port status on the switch. The various colors key indicate the port status, speed and link ...

3-77 Figure 3-85 System Name Page The System Name Page includes the following fields: Table 3-66 System Name Page item description Item Description System Name Defines the user-defined switch name. The field length is 0-30 characters System Location Defines the location where the system is currently...

3-78 Figure 3-86 System Time Setup Page The System Time Setup Page contains the following fields: Table 3-67 System Time Setup Page item description Item Description Current Time Displays the current time in Mon-Day-Year Hour:Min:Sec. Time zone Local Time zone from GMT in which switch is operating. ...

3-79 Click Save Configuration . The Save Configuration Page opens. Figure 3-87 Save Configuration Page Click OK. The configuration is saved. Resetting the Switch The Reset Page restores the switch factory defaults. To prevent the current configuration from being lost, use the Save Configuration Page...

3-81 Figure 3-90 Restore Files Page The Restore Files Page contains the following fields: Table 3-69 Restore Files Page item description Item Description Download via TFTP Enables to download files via TFTP. Download via HTTP Enables to download files via HTTP. TFTP Server IP Address Specifies the T...

3-82 Item Description TFTP Server IP Address Specifies the TFTP Server IP Address from which the image files are downloaded. Source File Name Specifies file name for the downloaded image file. Click Browse to locate the image file on your computer. Activating Image Files The Active Image Page allows...

3-83 Table 3-72 System Log Severity Levels Severity Level Message Emergency Highest (0) The system is not functioning. Alert 1 The system needs immediate attention. Critical 2 The system is in a critical state. Error 3 A system error has occurred. Warning 4 A system warning has occurred. Notice 5 Th...

3-84 Table 3-73 Logging Setup Page item description Item Description Enable Logging Specifies if device local logs for Cache and servers are enabled. Console logs are enabled by default. Severity level: Specifies the minimum severity level for which a message will be logged. When a severity level is...

3-85 Table 3-74 Logging Display Page item description Item Description Save Preview Saves the displayed Log table to a Web (html) page. Clear Logs Clears all logs Log Time Displays the time at which the log was generated. Severity Displays the log severity. Description Displays the log message text....

3-86 Table 3-75 Port Mirroring Setup Page item description Item Description Select port type Defines the monitor port (destination port) or mirror port (source port). The possible values are: z Monitor: Defines the port as the monitor port. z Mirror: Defines the port as the mirrored port to be monit...

3-87 Figure 3-97 Cable Diagnostic Page 2) Select a port to be tested. 3) Click Apply . The test results of the port are displayed in the textbox. Viewing Cable Diagnostics The Cable Diagnostics Summary Page displays information on Test Result, Cable Fault Distance, or Last Update for every port on t...

4-1 4 Troubleshooting This chapter lists some issues that you may encounter while installing, using, and managing the switch, with suggested courses of corrective action to take. If you encounter an issue that is not listed here and you cannot solve it, check the 3Com Knowledgebase at http://knowled...

4-2 Configure a new user You can use localuser command to configure a new user through the Console Port (see CLI Reference Guide). Forgotten Static IP Address If you forget the static IP address that you assigned to the switch, you can use display ip command through the Console Port (see CLI Referen...

4-3 All ports appear to show continual activity. There may be broadcast storms on the network. Remove port connections one at a time, waiting a few seconds between each port. If the LEDs go off after removing a port connection, the device that was connected to that port is introducing an excessive a...

5-1 5 CLI Reference Guide This chapter describes using the Command Line Interface (CLI) to manage the switch. The switch is managed through the CLI from a direct connection to the switch console port. Getting Started with the Command Line Interface Using the CLI, network managers enter configuration...

5-2 CLI Features Online Help CLI provides two types of online help: complete online help and partial online help. They assist you with your configuration. Complete online help Enter a "?" character in any view on your terminal to display all the commands available in the view and their brief...

5-3 the keywords that match the input characters will be displayed on the terminal screen if the input characters match more than one keyword. Command History CLI can store the latest executed commands as history commands so that users can recall and execute them again. By default, CLI can store 10 ...

5-4 Error message Description found at '^' position. An error is found at '^' position. Command Edit The CLI provides basic command edit functions and supports multi-line editing. The maximum number of characters a command can contain is 254. Table 5-3 lists the CLI edit operations. Table 5-3 Edit o...

5-5 Example # Display the IP address information about the switch. <Command-Line> display ip Vlan-interface1 current state: UP Line protocol current state : UP Hardware address is 0800-1234-5656 Internet address is 192.168.0.234/24 display management-vlan Syntax display management-vlan View Us...

5-8 Parameter name: Web user name, which ranges from 1 to 8. password: Web user password, which ranges from 1 to 8. level: Web user level, which ranges from 0 to 1.0 is guest, 1 is admin. Description Use the localuser command to configure a Web user for the switch. Use the undo localuser command to ...

5-9 View User view Parameter interface-number : Ethernet port number Description Use the management-vlan port command to add Ethernet ports of the switch to the management VLAN. By default, all Ethernet ports of a switch belong to management VLAN 1. Example # Configure VLAN 10 as the management VLAN...

5-10 Example # Check the reachability of the host with IP address 192.168.0.100. <Command-Line> ping 192.168.0.100 PING 192.168.0.100: 56 data bytes, press CTRL_C to break Reply from 192.168.0.100 : bytes=56 sequence=1 ttl=255 time = 1ms Reply from 192.168.0.100 : bytes=56 sequence=2 ttl=255 t...

5-11 Parameter None Description Use the reboot command to restart the switch. Example # Restart the switch. <Command-Line> reboot This will reboot device. Continue? [Y/N] restore Syntax restore default View User view Parameter None Description Use the restore command to reset the switch to fac...

5-12 Example # Save current configuration of the switch. <Command-Line> save This will save the configuration in the FLASH memory Are you sure?[Y/N]y Now saving current configuration to FLASH memory Please wait for a while... Current configuration saved to FLASH memory successfully tftp update...

6-1 6 Obtaining Support for Your Product Register Your Product Warranty and other service benefits start from the date of purchase, so it is important to register your product quickly to ensure you get full use of the warranty and other service benefits available to you. Warranty and other service b...

6-2 z Product model name, part number, and serial number. z Proof of purchase, if you have not pre-registered your product. z A list of system hardware and software, including revision level. z Diagnostic error messages. z Details about recent configuration changes, if applicable. To send a product ...

7-1 7 Safety Information Important Safety Information Please refer to the safety information found in the 3Com Switch Family Safety and Regulatory Information manual included with this product. You can find the 3Com Switch Family Safety and Regulatory Information manual that was included with your s...

8-1 8 Regulatory Notices FCC Statement This equipment has been tested and found to comply with the limits for a Class digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commerical environment. This equipm...

9-1 9 Glossary Table 9-1 Glossary Item Description 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. 1000BASE-LX IEEE 802.3z specification for Gigabit Ether...