3Com Hub 1000 SX manual Using Optional, Power Systems

Page 24

Using Optional

2-8CHAPTER 2: INSTALLING THE HUB

To install and connect a GBIC module, follow these steps:

1Disconnect all power to the Hub 1000 SX.

Disconnect the AC power cord. If you are using an Advanced RPS unit, disconnect the RPS cable from the DC power connector.

2Remove the GBIC module from its shipping container.

3Slowly insert the module into the rear-panel uplink port, being careful not to damage any of the components or connecting pins.

The module slides into the hub following the tracks in the slot. The lettering that shows the module type must be positioned on top of the connector openings when the module is in place.

4Push the module all the way in until the connector makes contact.

5Reattach the power cord and any power system cable to the hub.

6Attach the proper cable to the module to make the desired network connection.

Both ends of the connection must be of the same media type (CX, LX, or SX).

7Reconnect power to the hub.

Using Optional	You can ensure fail-safe operation and constant power to SuperStack II
Power Systems	components by using the SuperStack II Advanced Redundant
	Power System (Advanced RPS) and the SuperStack II Uninterruptible
	Power System (UPS). These units and associated Power Modules and
	cabling must be purchased separately.

Advanced RPS A single SuperStack II Advanced RPS (part numbers 3C16070 and 3C16071) can protect up to four SuperStack II Hub 1000 SX units from internal power supply failures. If a SuperStack II unit’s internal power fails, the Advanced RPS is capable of supplying all the unit’s power needs.

The Advanced RPS chassis is rack-mountable. It is fed by two independent AC lines and remains operational if one of the AC lines fails. The front panel provides LED indicators for monitoring temperature as well as power input and output status.

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Contents SuperStack II Hub 1000 SX User GuideA member of the 3Com SuperStack II System 3Com Corporation 5400 Bayfront Plaza Santa Clara, California UNITED STATES GOVERNMENT LEGENDSCONTENTS 2 INSTALLING THE HUBABOUT THIS GUIDE 1 INTRODUCTION A USING THE CONSOLE PORT 3 MAKING CONNECTIONSPOST Messages SPECIFICATIONS GLOSSARY INDEX 3COM CORPORATION LIMITED WARRANTYTECHNICAL SUPPORT FCC CLASS A VERIFICATION STATEMENTPage FIGURES Page TABLES Port Conﬁguration MenuPage ABOUT THIS GUIDE IconNotice Type DescriptionCommands SETDEFAULT !0 -IP NETaddr =Menu commands and buttonsINTRODUCTION Hub 1000 SXGeneral Description Downlinks and UplinkFull-Duplex OperationFlow Control Features and FunctionsINSTALLING THE HUB SuperStack II Hub 1000 SX User GuideHub Description The hub’s front and rear panels are shown in Figure Installing and Connecting the Hub4 Repeat steps 2 and 3 for the other side of the hub Connector Table 2-1 Downlink ConnectionsMaximum Cable TypeTable 2-2 Hub 1000 SX Indicators IndicatorColor StatusConnecting a GBIC ModuleThe gigabit interface connector GBIC port on the rear panel of the Using Optional Power SystemsPower Modules Cabling OptionsA hub connects to a UPS unit through the hub’s AC power cord Table 2-4 Advanced RPS Conﬁguration OptionsYou can connect a UPS unit to an Advanced RPS unit as long as you do not exceed the maximum wattage 325 watts for the UPS unit. To verify that the UPS unit’s maximum wattage is not exceeded, calculate the total power consumption of all units connected to the Advanced RPS. If the result is less than 325 watts, your conﬁguration is safe if the result is greater than 325 watts, then there are too many units connected to the Advanced RPS Page MAKING CONNECTIONS Table 3-1 Gigabit Ethernet Maximum Cable LengthsPower Workgroup AggregatingServers connecting to the network backbone. See FigureSwitches The Hub 1000 SX does not support bandwidth aggregation trunkingYou can use the Hub 1000 SX downlinks to aggregate 10/100 Mbps Figure 3-3 Aggregated Switches Connection 3-4 CHAPTER 3 MAKING CONNECTIONSConnecting Figure 3-4 Mixed ConnectionThe best use of the hub uplink is as a backbone connection to a 3Com Figure 3-6 Uplink Connection to a 10/100 Mbps Switch Table 3-2 Troubleshooting TipsSymptom SolutionUSING THE CONSOLE PORT Connecting the With PowerRequirements Console Portfrom power To connect the console port when the hub is disconnectedConnecting the Console Port A-3 DisconnectedLogging On message, return the hub to the supplierAfter 4 minutes of inactivity, the CLI logs off automatically Password Port SettingsChanging the ConﬁguringTo display the Port Conﬁguration menu Configuring Port Settings Table A-2 Port Conﬁguration MenuA-8 APPENDIX A USING THE CONSOLE PORT Configuring Port Settings and be conﬁgured to receive pause frames Configuring Port Settings A-11 Displaying Hub Statusmatrix, Y indicates yes and n indicates no. See Table A-3 Table A-3 Hub Status InformationDisplaying Hub Status A-13 Restoring the Factory Default Settings A-14 APPENDIX A USING THE CONSOLE PORTUpdating the Firmware Imageentering option Checking theXmodem-CRC To transfer the ﬁrmware image ﬁle during a ﬁrmware update, the CLI displays the following message Logging Offlog in again. To restart the ﬁle transfer, repeat steps 6 and Table A-4 File Transfer Error Messages Table A-5 Fatal Error MessagesWhile saving port settings or SPECIFICATIONS Physical DimensionsEnvironmental Operating Ranges Page Services Board ServiceTECHNICAL SUPPORT Online TechnicalAccess by Analog Modem Access by Digital Modem1 408 654 C-2 APPENDIX C TECHNICAL SUPPORTLocal access numbers are available within the following countries Santa Clara, California Czech Republic/SlovakCentral European HQ 305 261 3266 Miami, FloridaTo obtain an RMA number, call or fax Page GLOSSARY Carrier Sense Multiple Access/Collision Detection. Channel access cable is based on CSMA/CD Carrier Sense Multiple Access/Collisionaccess method transmission of light signalsIEEE incomingﬂow control Mbpscontrol. See also asymmetric ﬂow control, ﬂow control, pause frame Symbols INDEXNumbers Page Switch 9300 3-2, 3-3 Page 3Com Corporation LIMITED WARRANTY STANDARD WARRANTY SERVICEHARDWARE SOFTWAREFCC CLASS A VERIFICATION STATEMENT LIMITATION OF LIABILITYGOVERNING LAW