3Com 3CR16709-91, 3CR16708-91 manual Air temperature around the Switch does not exceed 50 C 122 F

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Placing Units On Top of Each Other 23

■Air temperature around the Switch does not exceed 50 °C (122 °F).

If the Switch is stacked with other OfficeConnect units its local air temperature may be greater than room ambient temperature.

■The air is as free from dust as possible.

■The unit is installed in a clean, air conditioned environment.

■No more than four Switch units are placed on top of one another, if the units are free-standing or stacked together with the stacking clip.

■The Switch is situated away from sources of conductive (electrical) dust, for example laser printers.

■The AC supply used by the Switch is separate to that used by units that generate high levels of AC noise, for example air conditioning units and laser printers.

Placing Units On If the Switch units are free-standing or stacked together with the stacking

Top of Each Other clip, up to four units can be placed one on top of the other. If you are mixing a variety of OfficeConnect Switch and Hub units, the smaller units must be positioned at the top.

If you are placing free-standing Switch units one on top of the other, you must use the supplied self-adhesive rubber pads to prevent the Switch from moving around on your desk, or when stacking with flat top OfficeConnect units. Apply the pads to the underside of each Switch, sticking one in the marked area at each corner.

Using a Stacking Use a stacking clip when stacking your Switch with other curved

ClipOfficeConnect units. The stacking clip allows you to stack units neatly and securely.

CAUTION: You can stack up to a maximum of four units. Smaller units must be stacked above larger units.

To fit the clip:

1Fit the clip across the top of the unit, as shown in Figure 5 (picture 1).

2Align the fastening pieces over the slots found on each side of the unit.

3Push the clip down gently to secure it, ensuring that the fastening pieces snap into the slots on the unit.

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Contents 3CR16708-91 3CR16709-91 United States Government Legend 3Com Corporation Campus Drive Marlborough, MA USAContents Setting UP for Management Outs Problem SolvingPage About this Guide Convention Description ConventionsIcon Description Documentation RelatedDocumentation Pddtechpubscomments@3com.com CommentsIntroducing Hardware Features Switch Alert LED Power LED Port Status Leds PoE Status Leds Switch Front View DetailColor Indicates 10BASE-T/100BASE-TX Port Status LEDs SFP Module Status LED Switch 9 FX only100BASE-FX Port Status LEDs Switch 9 FX only Alert LED LEDSwitch 9 rear view Switch Rear View DetailSwitch Rear View Detail Page Default Settings shows the default settings for the Switch Page Installing the Switch Site Package ContentsChoosing a Suitable Air temperature around the Switch does not exceed 50 C 122 F Instructions for Cement Walls Wall-mountingUpwards MountingMake two holes 150 mm 5.9 in. apart Instructions for Wood WallsColor State Power and Alert LED colorsPower-up Sequence Cross-over Cable Straight-through Cable SFP Operation Installing the Switch Inserting a SFP Transceiver Installing the Switch Setting UP for Management Overview Setting UpConfigure IP information manually for your Switch or view Automatically configured IP informationAutomatic IP Configuration Manual IP ConfigurationSetting UP for Management Pre-requisites Manually Configuring IP InformationConnecting a workstation to the Switch via the console port Connecting the Workstation to the SwitchExample top-level command line interface menu Setting Up the Switch with IP InformationAutomatically Configured IPViewing Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Methods of Managing a Switch Refer to Setting Up Web Interface Management on Refer to Setting Up Command Line Interface Management onCLI Management via Command LineNetwork Using Telnet Interface ManagementChoosing a Browser Setting Up WebInterface Management workstation Setting Up SnmpManagement Protocol Snmp can manage a Switch if Over the NetworkUser Default Name Password Access Level Default UsersDefault Users and Passwords Setting UP for Management Problem Solving Indicated by LEDs Solving ProblemsSolving Hardware ProblemsRefer to the list of suggested solutions below How do you obtain a registered IP Address? Solving Communication ProblemsIP Addressing Solving Software Upgrade Problems Problem Solving Safety Information This must be approved for the country where it is used Power Cord Set Japan Important Safety InformationImportant Safety Information Schko ’information de Sécurité Importante’information de Sécurité Importante Vorsicht Europe Wichtige SicherheitsinformationenInformación de seguridad importante Schuko Dispositivo Láser DE Clase CSA Importanti Informazioni di SicurezzaAvvertenza porte a fibre ottiche Protezione degli occhi Appendix a Safety Information Panel. The pinout is shown below RJ-45 Pin Signal DB-9 Pin DirectionRJ-45 to RS-232 Adapter CablePin Number ConnectorsRJ-45 Pin AssignmentsOfficeConnect Managed Switch 9 and Switch 9 FX Terminal Emulation Protocols Used for AdministrationStandards Supported Purchase ServicesRegister Your ProductDownloads Access SoftwareTroubleshoot OnlineContact Us US and Canada Telephone Technical Support and Repair Country Telephone NumberLatin America Telephone Technical Support and Repair Index Snmp Regulatory Notices