3Com 8807, 8814, 8810 A Windows 98 operating system environment, you can perform, Serial Submenu

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Software Upgrade 87

XModem completes transmission by the receiving program (receiver) and the sending program (sender). In XModem, the transmission begins with the sending of negotiation characters from the receiver for the purpose of check mode negotiation. After passing the negotiation, the sender is allowed to send the first data packet. Upon the receipt of the complete packet, the receiver checks the packet using the agreed checking mode and will send an ACK if the packet has passed the check and a NAK if not. Receiving the ACK, the sender will send the next packet; receiving the NAK instead, the sender will retransmit the previously sent packet.

2Xmodem application

Step 1: In the Boot menu, enter 4, press Enter, and the system will access the serial interface submenu:

SERIAL SUBMENU

1.Download file to SDRAM through serial interface and boot

2.Download file to Flash through serial interface

3.Download file to HardDisk through serial interface

4.Modify serial interface boot parameter

0.Return to main menu Enter your choice(0-4):4

Step 2: Enter 4 in the serial interface submenu and press Enter to access the following interface for setting the parameters of the downloading serial interface:

1:9600(default)

2:19200

3:38400

4:57600

5:115200

please select an appropriate baudrate: Enter your choice(1-5): 5

Step 3: Select the appropriate downloading speed as needed. For example, enter 5 to select the downloading speed of 115200 bps, press Enter, and the system will display the following information in the terminal:

BaudRate is 115200 bps. Please change the terminal’s speed to 115200

bps

Step 4: At the prompt displayed in the last step, change the baud rate on the Console terminal to the same one selected for software downloading, disconnect the terminal and connect it again, press Enter, and the terminal will access the serial interface submenu again:

SERIAL SUBMENU

1.Download file to SDRAM through serial interface and boot

2.Download file to Flash through serial interface

3.Download file to HardDisk through serial interface

4.Modify serial interface boot parameter

0.Return to main menu Enter your choice(0-4):2

n

■ After changing the baud rate, you must close the terminal emulation program

and start it again for at least once in order to validate the new baud rate.

 

■ In a Windows 98 operating system environment, you can perform the

 

operations of disconnection and reconnection after changing the baud rate. In

 

a Windows 2000 operating system, however, you must disconnect the terminal

 

before setting the baud rate and connect the terminal after finishing the work.

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Contents 3Com Switch 8800 Family United States Government Legend 3Com Corporation Campus Drive Marlborough, MA USAContents System Debugging Lists icon conventions that are used throughout this guide About this GuideConventions Protocols that are used to interconnect LANsDocumentation SwitchUsing the supported protocols and CLI commands RelatedProduct Overview Preface8800s 3Com Switch 8810 10-Slot Chassis 3Com Switch 8814 14-Slot Chassis Switch 8807 slots Chassis and Slots SwitchSwitch 8810 slots SwitchStructure FunctionsAC Power System Specifications SwitchEach Ethernet port can deliver up to 15.4 W to its PD PoE entry area External PoE Power Rack 3C17509Mbus Introduction Normal AbnormalLabel Color State Abnormal reason Role and function Fan tray panel of the Switch 8800 FamilyGbps Switch Fabric Fabric ModulesPanel Status LEDs for the management 10Base-T/100Base-TX port RS232/485 port specificationsCompact Flash CF slot Management PortsStatus LEDs Reset buttonConsole port specifications AUX port specificationsStatus LEDs for I/O module Status LEDs for the 360 Gbps Switch Fabric moduleGbps Switch Fabric LED Status CF status LED720 Gbps Switch Fabric specifications Gbps Switch Fabric Technical specificationsAUX port Status LEDs for the 720 Gbps Switch Fabric module Technical specifications of the Switch 8800 Family Status LEDs for the 720 Gbps Switch Fabric moduleSoftware Features Supported software featuresSoftware features of the Switch 8800 Family Lacp Software features of the Switch 8800 Family Product Overview Overview O modules available to the Switch 8800 Family3C17511 module specifications Application ModulesPort LEDs on the 3C17511 module 3C17512 module specifications3C17512 2-port 10GBASE-X XFP Module Panel and LEDs 3C17511 module panelSpecifications 3C17513 12-port 1000BASE-X SFP Module3C17513 module has two LEDs for each port on its panel Panel and LEDs 3C17514 module panel 3C17514 module specifications3C17514 24-port 1000BASE-X SFP Module Port LEDs on the 3C17513 module3C17525 1-port 10GBASE-X Advanced Xenpak Module 3C17516 module has one LED for each port on its panelPort LEDs on the 3C17516 module Port LEDs on the 3C17525 module 3C17526 module specifications3C17526 4-port 10GBASE-X XFP Module Panel and LEDs 3C17525 module panel1000 Mbps optical port LEDs on the 3C17526 module 3C17527 module specifications3C17527 2-port 10GBASE-X XFP Advanced Module Panel and LEDs 3C17526 module panel3C17528 module has one LED for each port on its panel 3C17528 48port 10/100/1000 BASE-T RJ-45 Module3C17530 24-port 1000BASE-X SFP Advanced Module 3C17531 24-port 10/100/1000BASE-T Advanced ModulePanel and LEDs 3C17530 module panel Port LEDs on the 3C17531 module 3C17532 module specifications3C17531 module has one LED for each port on its panel Panel and LEDs 3C17531 module panel3C17533 24-port 1000BASE-X SFP IPv6 Module 3C17532 module has one LED for each port on their panelPanel and LEDs 3C17533 module panel 3C17536 4-port 10GBASE-X XFP Quad IPv6 Module 3C17534 module specifications3C17536 module specifications 3C17534 24-port 10/100/1000BASE-T IPv6 Module1000 Mbps optical port LEDs on the 3C17536 module 3C17538 module specifications3C17538 48-port 1000BASE-X SFP IPv6 Module Panel and LEDs 3C17536 module panelPort LEDs on the 3C17538 module Technical specifications for the 3C17542Front panel Panel and LEDs 3C17538 module panelStatus LEDs on the 3C17546 Technical specifications for the 3C17546Technical specifications for the 3CR1754766 Available cablesStatus LEDs on the 3CR1754766 Technical specifications for the 3C17548Documents the 3Com Switch 8800 Family transceivers Transceiver SpecificationsTransceivers Description Max Port Switch 8800 PortSwitch 8800 Available Modules DensitiesRecommendations Installation PreparationSafety General SafetyInstallation Preparation Gas Average mg/m3 Max. mg/m3 Limitation on dust content in equipment roomMechanical active material Unit Content Harmful gas limits in an equipment roomMeasure Installation ToolsPower Supply Requirements Space Requirements Required installation toolsSwitch Installation Confirming Installation PreparationInstallation Flow One Switch 8807 chassis in a cabinet Mounting the Switch User-Supplied CabinetOne Switch 8807 chassis in a cabinet Switch 8807 11U Two Switch 8807 chassis in a cabinetTwo Switch 8807 chassis in a cabinet Switch 8807 11U One Switch 8810 chassis in a cabinetOne Switch 8810 chassis in a cabinet Switch 8810 14U One Switch 8814 chassis in a cabinetCabinet One Switch 8814 chassis in a cabinet Switch 8814 17UConnecting Pgnd Wire and Power Cord Connecting Pgnd Wire Common grounding environmentOther grounding environment Ground the switch when ground bar is available Ground the switch via AC PE wire Connecting AC Power CordConnect AC power cord to the Switch Grounding PoE chassis Connecting PoE power cableInstalling Fan Tray Install mounting ears onto the both sides of the switchFan tray is hot swappable Contact take the fan tray out from the packing bag Lightning Protection BoxFasten the screw on top of the PoE lightning protection box Installing I/O modulesIntroduction Connecting Interface CablesConnecting console cable RJ-45 Signal Direction DB-25 DB-9AUX cable pinouts AUX cableConnecting Fiber Connecting AUX cableIntroduction to RJ-45 connector Connecting category-5 shielded cableCable Routing Recommendations Cable ManagementIntertwinement or bending is allowed Cable bundling example Cable fixing example Cable bundle diameter mm Space between bundles mm Verifying InstallationInstallation checking list Tie-binding parametersSwitch Installation Environment Setting up Configuration EnvironmentSetting up System DebuggingVerifying Installation Before Powering Switch Powering and Booting the SwitchZbbtest System Debugging Switch Monitoring Maintenance Troubleshooting PSUDescription of the LEDs on PSU Description of fan tray LEDs Indicator State descriptionReplacing AC PSU Hardware MaintenanceRemoving AC PSU Switch 8807 as example IndicatorRemove and install the AC PSU Installing AC PSU Switch 8807 as exampleInstalling the air filter of PSU Removing and cleaning the air filter of PSURequired tools Replacing and Cleaning Air Filter of ChassisRemoving and cleaning the air filter of chassis Installing the air filter of the chassisReplacing the Fan Tray Required tools Installing a ModuleRemoving a module Gently pull the module out of the slot along the guides Software Upgrade Recommended upgrade procedure Required cables Press Ctrl+B as prompted and the system will display Boot menuMain Menu Upgrading software through console port XModemSerial Submenu A Windows 98 operating system environment, you can performSend File dialog box Upgrading software through management Ethernet port TftpFiles using Tftp and to 0x0 if using FTP Upgrading software through management Ethernet port FTP Loading using FTP Load host program Remote and local loading using TftpInsufficient Flash memory Password LossSoftware Upgrade No response from fabric serial interface No configuration saving during I/O module rebootSwitch Monitoring and Maintenance Diagram of lightning arrester Lightning Protection SwitchInstallation Lightning Arrester for Network Port Installation procedureIs not well grounded yet Use the nylon ties to bundle the cables neatly Installation precautions
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