3Com Baseline 2126-G User Manual

Also see for 2126-G - Baseline Switch: Product guide Datasheet Datasheet Datasheet Datasheet

Contents

4The Switch is supplied with two mounting brackets and fourscrews. These are used for rack-mounting the unit. Whenmounting the unit, you should take note of the guidelines givenin “Positioning the Switch“ on page 3.Rack Mounting the UnitThe Switch is 1U high and will fit a standard 19-inch rack.CAUTION: Disconnect all cables from the unit beforecontinuing. Remove the self-adhesive pads from theunderside of unit, if already fitted.1 Place the unit the right way up on a hard, flat surface withthe front facing towards you.2 Locate a mounting bracket over the mounting holes on oneside of the unit (refer to the figure following step 6).3 Insert the two screws supplied in the mounting kit and fullytighten with a suitable screwdriver.4 Repeat the two previous steps for the other side of the unit.5 Insert the unit into the 19-inch rack and secure with suitablescrews (not provided).6 Reconnect all cables.Der Switch wird mit zwei Halterungen und vier Schraubengeliefert. Diese werde für den Einbau in einen Baugruppenträgerbenutzt. Bei der Montage der Baugruppe beachten Sie dieAnweisungen aus “Aufstellen des Switch“ (page 3).Einbau der Baugruppen in einenBaugruppenträgerDer Switch ist eine Baueinheit hoch und passt in einen Standard19'' (Zoll) Baugruppenträger.ACHTUNG: Entfernen Sie alle Kabel, bevor Siefortfahren. Entfernen Sie die selbstklebenden Polster(Füße) von der Unterseite der Baugruppe, falls diesebereits angebracht sind.1 Plazieren Sie die Baugruppe aufrecht auf einer harten,ebenen Fläche mit der Vorderseite zu Ihnen.2 Ordnen Sie eine der Halterungen über den Löchern an derSeite der Baugruppe an.3 Stecken Sie zwei der mitgelieferten Schrauben in die Löcherund drehen Sie diese mit einem geeigneten Schraubendreherfest.4 Widerholen Sie letzten beiden Schritte auf der anderen Seiteder Baugruppe.5 Führen Sie die Baugruppe in den 19" (Zoll) Baugruppenträgerein und sichern sie die Baugruppe mit geeigneten Schrauben.(Nicht im Lieferumfang enthalten.)6 Schließen Sie alle Kabel wieder an.Refer to the information about LEDs given earlier in this guide tosee if the problem can be identified and rectified. Here are somecommon problems that can occur:Link Status LED not lit for a port that has a connection.There is a problem with this connection. Check that: The device being connected to is powered on and operatingcorrectly. The cable is connected at both ends. The cable is not damaged. If the connection is to a workstation, that the workstation’snetwork interface is installed and configured correctly. The correct category of cable is being used for the requiredlink speed. Category 3 cables can be used for 10BASE-Toperation only. Category 5 cables are required for100BASE-TX or 1000BASE-T. 3Com recommends usingCategory 5e cables for 1000BASE-T operation.All ports appear to show continual activity. There may bebroadcast storms on the network.Remove port connections one at a time, waiting a few secondsbetween each port. If the LEDs go off after removing a portconnection, the device that was connected to that port isintroducing an excessive amount of broadcast frames to thenetwork (some pieces of network equipment operate by sendingout broadcast frames regularly). Refer to the documentation thataccompanies the device for information on disabling thebroadcast operation.If the problem persists and the unit still does not operatesuccessfully, contact your supplier with the following informationbefore returning the unit: Product number and serial number (printed on a labelsupplied with the unit) A brief description of the faultMOUNTING KIT INSTRUCTIONSMONTAGESATZ A NWEISUNGENP ROBLEM SOLVING