Removing the Motherboard, Install | 3Com S26x, S27x, S24x guide

Replacing PathBuilder S24x, 26x, and 27x Switch Motherboard

Example

Figure 4-6shows an example of removing the motherboard.

Swing motherboard out and lift from enclosure.

Remove screws.

Figure 4-6. Removing the Motherboard

Install the	To replace the motherboard, reverse the steps just detailed in “Removing the
Motherboard	Motherboard.”

Maintenance

4-13

Image 109

3Com S26x, S27x, S24x installation manual Removing the Motherboard, Install

Contents

3Com Corporation Restricted Rights Legend Restricted Rights Notification for U.S. Government Users Proprietary Material Page Contents Appendix A. Cables Introduction OverviewAudience Manual Trademarks About This Manual Switch? What isPathBuilder S24x 26x, Application Meshed ClusterSupport Performance ApplicationsBranch Nodes Concentrator Regional Regional Concentrator Example PathBuilder S24x, 26x, and 27x Switch Cluster Example Description Features and Protocols Hardware Components PathBuilder S24x, 26x, and 27x Switch Hardware Configuration Components HardwareComponent Description DSPM/SM Ethernet Port 4 Limitations Enclosure Parts MotherboardMotherboard Ports Flash 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 Components Back Panel Function TI Dual Port Digital PBX Interface Card Cable Description Function LED Status IndicatorsColor LED is Indicating E1 Dual Port Digital PBX Interface Card Settings DIP SwitchPBX Interface Card Illustration Location Sysfail RUN Step Action DSPM/SM Card 13. 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 Default Jumper Setting Jumpers for Dspm Card with Analog E&M InterfaceSettings Jumper Wire/600 Wire/UK Number Complex 16. UK Complex Impedance Germany 18. 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 21. DSPM/HC Card with Analog FXO Daughtercard Card Illustration Hardware 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 24 BaseT Transceiver 10BaseT Transceiver Canadian DOC Radio Frequency Interference RegulationsGeneral Telecommunications Regulations Mise en Garde FCC and Telephone Company Procedures and Requirements FCC Information Concerning RegulationsElectromagnetic Radiation FCC Information Preparation and Unpacking Operating Selecting anEnvironment Mise en Garde Checking Unpacking PathBuilder S24x, 26x, and 27x Switch Rackmount Kit Considerations Placement PathBuilder S24x, 26x, and 27x Switch Rackmount Kit Step Action Description Step Action Description Pedestal Base Removing Steps for Rackmount Assembly Installing the PathBuilder S24x, 26x, and 27x Switch Installation PathBuilder S24x, 26x, and 27x Switch Hardware Avertissement Switches 1 Setting DIP SwitchesSwitch Settings for Motherboard Switches 1 Set Switch For DSU DIM Installation Installing the DSU DIM Step Action Result/Description Switch Settings Procedure ConfigurationINT EXT Input Signals DSU Input and Output SignalingOutput Signals Signal Description CLK IDL Loopback Options Troubleshooting Troubleshooting DSU InstallationIf Problems Arise DIM Example Installing DIMs Mise en Garde Installing SIMMs Installing SIMMs Installing an I/O Installing I/O CardsBRI Installation Installing a T1 or E1 Dual Port Digital PBX Interface Card Place 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 LAN Cabling the PathBuilder S24x, 26x, and 27x Switch Transceiver Installing the Transceiver Power Up Power-Up Diagnostics/VerificationSequence Function Description Command Default NodeSetting Node to Default Installing Software Options Full Mesh Cluster Cabling ConfiguringUsage Cables Mesh Diagram Maintenance Maintenance Cover Removing/Replacing Top Cover Removing the Top Cover Panel Cover Removing/Replacing Front Panel Cover Removing the Front Panel Cover Supply Removing/Replacing Power Supply Removing the Power Supply Expansion Card Removing an Removing the Support Bar Removing an Expansion Card Replacing PathBuilder S24x, 26x, and 27x Switch Motherboard Removing the Motherboard Install Battery Removing/Replacing the Lithium BatteryReplacing Removing the Lithium Battery Removing/Replacing the Lithium Battery Alarms What Is It?Statistics Software Overview Application Example Configure this Record/Table To do this Configuring Channelized Data Configuring Channelized Data Configure Ports Configuring T1 and E1 Physical PortsStep Action Result 49 or Port Record Menu Configure Path Main.6 Node Port Parameters Port Number GuidelinesPort Type Line Framing Type INT, REC Transmit ClockLine Build Out Facility Data Link Threshold Value-LCV Threshold Value LESThreshold Value-PCV Threshold Value-CSS Threshold Value-BES Threshold Value-ES Threshold Value Sefs Threshold Value-SES Threshold Value UAS Parameters Port Type E1 Port RecordLine Coding Line Impedance Threshold Value-CSS Threshold Value-SES Threshold Value UAS How to Booting VirtualEnabling/ Disabling Virtual Ports Port Configuration for Channelized Data Option What You See Configuring Virtual Port Mapping Table Virtual Mapping Configure Select Virtual Port MappingVirtual Port Mapping Table Parameters Virtual Port Number DS0 Rate Time Slots Function/Signal Pin EIA 232-D Signals Motherboard and SDBFunction/Signal Name Pin 35/V.36 Motherboard Position Signal NameFunction Pin External Transmit Clock B Clock a Test Mode Function/Signal35/V.36 SDB Receive Receive Clock Clock B Data Data Terminal Ready Position Signal V11 Signals Motherboard V11 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 Numeric Status Service Description/Comments Display Error Codes Numeric Status Service Description/Comments Technical Support 3ComFacts Automated Fax Service Access by Analog ModemAccess by Digital Modem Country Data Rate Telephone Number 3Com Support fromCountry Telephone Number Country Telephone Number Fax Number Numerics IndexCTP FCC DSU Index-3 URL D-1 Simm Disabling Warm Restart World Wide Web WWW D-1 Index-6