MDI/MDI-X Switch, Status LEDs | RadioLAN Campus BridgeLINK guide

Status LEDs

The green Status 1 LED illuminates when the CPU detects the presence of the distant CPU. When the CPU is operating, this LED normally illuminates when the near and far CPUs are active.

The green Status 2 LED illuminates when the CPU detects the presence of data passing through the wireless link. During normal CPU operation, this LED flickers when near and far CPUs are active.

MDI/MDI-X Switch

Interconnection on a 10BaseT Network must always be between MDI to MDI-X. The transmitter of each device must connect to the receiver of the other device. The reversal of the transmitter and receive assignments is called a crossover function. Every 10BaseT interconnection requires a crossover function. Generally, 10BaseT ports on an adapter card are configured as MDI, and 10BaseT ports on a repeater/hub are configured as MDI-X.

The CPU allows you to configure its 10BaseT port as an MDI (switch out position) or MDI-X (switch in position) port. The abbreviation MDI stands for Media Dependent Interface, and is specified by the IEEE 802.3i 10BaseT standard to be the electrical and mechanical interface to the UTP wire. An MDI port transmits out to the UTP wire on pins 1 and 2, and receives from the UTP wire on RJ-45 pins 3 and 6.

The MDI/MDI-X switch swaps the pin assignments of transmit and receive data wire pairs for the 10BaseT port. MDI-X configuration is used when the remote end of the wire is connected to a network station (for example, a10BaseT adapter card) or to an MDI port on a 10BaseT concentrator. MDI configuration is used when the remote end of the wire is connected to a 10BaseT concentrator.

890-007 Rev. A 01/28/99

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© 1999 RadioLAN, Inc.

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RadioLAN Campus BridgeLINK manual MDI/MDI-X Switch, Status LEDs

Contents

Wireless Local Area Network Campus BridgeLINK User Guide FCC Remarks Disclaimer Trademark Disclosures Manual Conventions Installing the CPU Using the Campus BridgeLINK Manager Recording Important System Information Getting Technical Support 120 890-007 Rev. a 01/28/99 Introduction 890-007 Rev. a 01/28/99 Campus BridgeLINK System LED IndicatorsCampus BridgeLINK Processor Unit CPU MDI/MDI-X Switch 10BaseT Port Jack 10BaseT LED IndicatorsLocal Port Jack CRM Port Mounting Bracket Companion Radio Module CRM CRM Companion Radio Module Power Transformer Directional Antenna Antenna Cable Low-Loss RF Cable Typical Campus BridgeLINK Application Typical Campus BridgeLINK Application Determining the Distance between Buildings Linking Networks in Two Locations Initial IP Address Setup Quick Configuration Temporarily Connect the CPU Using the IP Assign Utility to Assign the CPU’s IP Address Configuration Disk Installing the CPU Tools You Will Need Locating the CPU Closely to Network, Power, and the Antenna Locating the CPU Connecting the Antenna Cable to CRM Mounting the CPU Inserting the CRM into the Bracket Connecting the Network Marking Screw Locations Grounding Considerations Acceptable Ground Source Brief Word About Safety Attaching the Directional to a Typical Mount Choosing the Best Mounting Height Minimum Height from Ground Sighting Each Campus BridgeLINK Antenna Adjusting the Antenna’s DirectionTools You Will Need Sighting Procedure Eyeball the Direction Apply Power to the CPU Power Connection Sequence Local Management Adding Security to the Wireless NetworkDual Remote Management Html and Snmp System Requirements Browser Requirements Using the Campus BridgeLINK Manager CPU Web Site Browsing the Network for the CPU Logging onto Campus BridgeLINK Manager Product ID Enter PasswordEnter User Name Campus BridgeLINK Manager Site Layout Campus BridgeLINK Manager Main Menu Campus BridgeLINK Manager Main Aiming the Directional Antennas ∙ Explicit Address check boxStart button Save Distance Parameter button Setting the Frame Size Setting the Estimated Distance between AntennasSelecting the Distant CPU’s Address Starting and Stopping the Test Setting Up Security Features User Logon Name Fields Setting Up Snmp Capabilities Use Default Administration ParametersReload System Contact System NameSystem Location IP Parameters IP Parameters IP Address Default Gateway IP AddressSubnet Mask Dhcp Support DisabledAcquire System IP Only Acquire IP, Download System Software and Save it Acquire IP and Download System SoftwareDhcp Server IP Address User Authentication Authentication Trap checkSnmp Parameters Cold Start Read Community Enable Authentication TrapWrite Community Configuring Snmp Managers for the CPU Configure Snmp Host Directing Traps to Manager Stations Setting Access Rights for Snmp ManagersDirecting the System Log to Manager Stations Setting the CPU’s Mode of Operation Point-to-Point Mode Securing the CPU with Data Encryption ∙ Encryption Key field Data Encryption Enabled Check BoxEncryption Key and Retype Encryption Key Fields Bridging the Link and 10BaseT Networks Getting to the Port Parameters Menu 10BaseT Port Parameters MAC Address Filter Edit Button Block IP Packets Block IPX Packets Block NetBIOS PacketsBlock NetBEUI Packets Radio Port Parameters Port Name Subnet ID Setting the Baud Rate for the Local Port Console Parameters Managing Packet Flow Through the CPU MAC Address Mask Bytes Source/Dest Accept/Reject Adding MAC Filters Modifying MAC Filters Deleting MAC Filters Spanning Tree Parameters Bridging Networks Bridge Priority 0-65,535 Forward Delay Time Hello Time Max. Age Time Port Priority Port Path Cost 1-65,535 Interrogating the System for Performance Information Checking 10BaseT Port Statistics 10BaseT Port Statistics Total Error Packets CRC Error PacketsCollision Error Packets Total Packets Transmitted Overrun Packets Runt Packets Checking Radio Port Wireless Link Statistics Radio Port Statistics Packet Transmission Average Transmit Rate Packets/Sec Packet Reception Total RetransmissionAverage Receive Rate Packets/Sec Software Upgrade from file Upgrading System Software System Software Filename Tftp Server IP Address Download Button Saving or Rejecting Configuration Setting Changes Configuration Changes Reload Last Saved Configuration Save All Changes and ResetReset Configuration to Factory Default Resetting the CPU Reset Recording Important System Information Default Gateway IP Address Boot Software VersionProduct Name System Name 890-007 Rev. a 01/28/99 Error Message Viewing the System LogTask Time Sec Managing the CPU Locally Signal Description DB-9F RJ11 Serial Port Adapter Cable Pin-outs CPU Local Management Hot Keys Logging onto the CPU Configuration Screen Logon Menu Serial Number System Features Using the Main MenuNode Discovery System Configuration DiagnosticsSystem Statistics System Status Working with the System Configuration Menu Administration Parameters Spanning Tree Parameters IP ParametersPort Parameters Software Upgrade Parameters Selecting this item Snmp Parameters Access Security Configuration ChangesSystem Operation Mode Data Encryption Configuration Manager Menu Items User PasswordMenu Name Menu Item Refer to User Logon Name Menu Name Menu Item Refer to System Contact System LocationIP Address Subnet Mask Menu Name Menu Item Refer to Default Gateway IP Dhcp Operation ModeAddress Dhcp Server IP Address Dhcp Server IP Address on Managing Host Access Enable Trap ReceivingManaging Host IP Address Right Receiving Point-to-Point ModeAdd this Managing Host Data Encryption Enabled Check 10BaseT Port ParametersMenu Radio Port Parameters Menu Block NetBIOS Packets Block MAC PacketsEdit MAC Filters Block IP Packets Packet When Satisfied List all Filters ConfiguredSource or Destination Address Filtering Forward Delay Time Max. Age TimePort Priority Port Path Cost 1-65,535 Download Mode Tftp Server IP Address Tftp Server IP Address on Save All Configuration Menu Name Menu Item Refer to System Software FilenamePerform Download Changes Configurations Reset All ConfigurationPing Destination Ping Frame Size Menu Name Menu Item Refer to Best WorstPerform Ping System Information Indicators Problem No traffic for anyone Problem Radio Range seems less than it should be Problem Retransmissions are excessive Access Point Agent Client Station Dhcp Server Glossary Domain Gateway IP Address MAC Address Manager Packets NodeRouting Subnet Mask Indicators Power LEDFault LED 10BaseT Port LEDs MDI/MDI-X Switch Status LEDs Connectors 10BaseT connector Serial Port Connector Network Protocol Electrical SpecificationsStandards Support Physical Specifications Environmental SpecificationsDimensions Weight Safety Agency Approvals Electromagnetic Emissions Getting Technical Support Index 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 RadioLAN