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3Com S26x, S27x, S24x installation manual Removing the Support Bar

Models: S24x S26x S27x

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Removing/Replacing PathBuilder S24x, 26x, and 27x Switch Cards

Example

Figure 4-4shows an example of removing the support bar.

®

Turn latch

1/4 turn.

Support Latch Bar

Figure 4-4. Removing the Support Bar

4-10	Maintenance

Image 106

3Com S26x, S27x, S24x installation manual Removing the Support Bar

Contents

3Com Corporation Restricted Rights Notification for U.S. Government Users Restricted Rights LegendProprietary Material Page Contents Appendix A. Cables Audience OverviewIntroduction ManualAbout This Manual TrademarksPathBuilder S24x What isSwitch? 26x,Application Meshed ClusterSupport Performance ApplicationsBranch Nodes Regional ConcentratorRegional Concentrator Example PathBuilder S24x, 26x, and 27x Switch Cluster Example Features and Protocols DescriptionPathBuilder S24x, 26x, and 27x Switch Hardware Configuration Hardware ComponentsComponent Description HardwareComponents DSPM/SMEthernet Port 4 Limitations Enclosure Motherboard MotherboardParts PortsFlash Simm Slot Number Port Number Associated Card Port NumbersSerial/Network Port Number Use UsedDIMs without a Cable Adapter DIMs with a Cable Adapter Back Panel Back Panel ComponentsTI Dual Port Digital PBX Interface Card FunctionCable Description Function LED Status IndicatorsColor LED is Indicating E1 Dual Port Digital PBX Interface Card PBX Interface Card Illustration DIP SwitchSettings LocationRUN SysfailDSPM/SM Card Step Action13. DSPM/SM Card 14. Cabling T1/E1 Card to DSPM/SM Cards Dspm Card with Analog E&M Interface 15. DSPM/E&M Card LEDs Settings Setting Jumpers for Dspm Card with Analog E&M InterfaceDefault Jumper Jumper Wire/600 Wire/UK Number ComplexGermany 16. UK Complex Impedance18. Jumper Locations for Dspm E&M Card Dspm Card with FXS Analog Interface 20. Dspm Card with Analog FXS Interface For Australian Jumper LocationsUsers Dspm Host Card with FXO Analog Interface Card Illustration 21. DSPM/HC Card with Analog FXO DaughtercardHardware Components 48V Ringer/Power Supply Card and Enclosure 22. Standard -48V RInger/Power Supply Card and Enclosure 23. Enhanced -48V RInger/Power Supply Card and Enclosure 10BaseT Transceiver 24 BaseT TransceiverCanadian DOC Radio Frequency Interference RegulationsGeneral Telecommunications Regulations Mise en Garde FCC and Telephone Company Procedures and Requirements FCC Information Electromagnetic RegulationsConcerning RadiationFCC Information Preparation and Unpacking Operating Selecting anEnvironment Mise en Garde Unpacking CheckingPathBuilder S24x, 26x, and 27x Switch Rackmount Kit Placement ConsiderationsPathBuilder S24x, 26x, and 27x Switch Rackmount Kit Step Action Description Step Action Description Removing Pedestal BaseRackmount Assembly Steps forInstalling the PathBuilder S24x, 26x, and 27x Switch PathBuilder S24x, 26x, and 27x Switch Hardware InstallationAvertissement Switch Settings for Motherboard Switches 1 Setting DIP SwitchesSwitches 1 Set Switch ForInstalling the DSU DIM DSU DIM InstallationStep Action Result/Description Switch Settings INT ConfigurationProcedure EXTOutput Signals DSU Input and Output SignalingInput Signals Signal DescriptionIDL CLKLoopback Options If Problems Arise Troubleshooting DSU InstallationTroubleshooting DIMInstalling DIMs ExampleMise en Garde Installing SIMMs Installing SIMMs Installing an I/O Installing I/O CardsBRI Installing a T1 or E1 Dual Port Digital PBX Interface Card InstallationPlace the interface card on an antistatic mat Installing the T1/CSU Daughter Card Follow these steps to install the T1/CSU Daughter card Installing T1/CSU Daughter Cards Cabling the PathBuilder S24x, 26x, and 27x Switch LANInstalling the Transceiver TransceiverSequence Power-Up Diagnostics/VerificationPower Up Function DescriptionSetting Node to Default NodeCommand DefaultInstalling Software Options Usage ConfiguringFull Mesh Cluster Cabling CablesMesh Diagram Maintenance Maintenance Removing/Replacing Top Cover CoverRemoving the Top Cover Removing/Replacing Front Panel Cover Panel CoverRemoving the Front Panel Cover Removing/Replacing Power Supply SupplyRemoving the Power Supply Removing an Expansion CardRemoving the Support Bar Removing an Expansion Card Replacing PathBuilder S24x, 26x, and 27x Switch Motherboard Install Removing the MotherboardBattery Removing/Replacing the Lithium BatteryReplacing Removing the Lithium Battery Removing/Replacing the Lithium Battery Statistics What Is It?Alarms SoftwareApplication Example OverviewConfiguring Channelized Data Configure this Record/Table To do thisConfiguring Channelized Data Step Action Result Configuring T1 and E1 Physical PortsConfigure Ports 49 orMenu Configure Path Main.6 Node Port Port RecordPort Type GuidelinesParameters Port Number Line Framing TypeLine Build Out Transmit ClockINT, REC Facility Data LinkThreshold Value-PCV Threshold Value LESThreshold Value-LCV Threshold Value-CSSThreshold Value-ES Threshold Value-BESThreshold Value-SES Threshold Value SefsThreshold Value UAS Parameters Port Type E1 Port RecordLine Coding Line Impedance Threshold Value-CSS Threshold Value-SES Threshold Value UAS Enabling/ Disabling Booting VirtualHow to Virtual PortsPort Configuration for Channelized Data Option Configuring Virtual Port Mapping Table What You SeeVirtual Port Configure Select Virtual Port MappingVirtual Mapping Mapping Table Parameters Virtual Port NumberTime Slots DS0 RateFunction/Signal Name EIA 232-D Signals Motherboard and SDBFunction/Signal Pin Pin35/V.36 Motherboard Position Signal NameFunction Pin 35/V.36 SDB Function/SignalExternal Transmit Clock B Clock a Test Mode Receive Receive Clock Clock B Data Data Terminal ReadyV11 Signals Motherboard Position SignalV11 Signals SDB Pin Signal Additional Information Ethernet RJ-45S Connector SignalsEthernet Cable Pinouts +12V Ethernet Cable Pinouts AC Input Power OutputDC Input PathBuilder S24x, 26x, and 27x Switch Specifications Error Codes Numeric Status Service Description/Comments DisplayNumeric Status Service Description/Comments Technical Support Access by Digital Modem Access by Analog Modem3ComFacts Automated Fax Service Country Data Rate Telephone Number3Com Support fromCountry Telephone Number Country Telephone Number Fax Number Numerics IndexCTP DSU FCCIndex-3 Simm URL D-1Disabling Warm Restart World Wide Web WWW D-1 Index-6