LED Status, Indicators, Color LED is Indicating | 3Com S27x, S26x

Hardware Components

LED Status	The T1 dual port digital PBX interface card contains four LEDs that can be viewed
Indicators	through the rear bracket.

	LED	Color	LED is...	...Indicating

	Port 49		OFF	Normal operation
		Yellow	ON	Carrier failure on Port 49span

	Port 50		OFF	Normal operation
		Yellow	ON	Carrier failure on Port 50 span

	RUN		OFF	Card failure
		Green	ON	Card Active

	SYSFAIL		OFF	Normal operation
		Yellow	ON	Card failure

About the PathBuilder S24x, 26x, and 27x switch

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3Com S27x, S26x, S24x installation manual LED Status, Indicators, Color LED is Indicating

Contents

3Com Corporation Restricted Rights Legend Restricted Rights Notification for U.S. Government Users Proprietary Material Page Contents Appendix A. Cables Manual OverviewIntroduction Audience Trademarks About This Manual 26x, What isSwitch? PathBuilder S24x Meshed Cluster ApplicationSupport Applications PerformanceBranch 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 DSPM/SM HardwareComponents Component Description Ethernet Port 4 Limitations Enclosure Ports MotherboardParts Motherboard Flash Simm Port Numbers Slot Number Port Number Associated CardSerial/Network Used Port Number UseDIMs 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 Indicators LED StatusColor LED is Indicating E1 Dual Port Digital PBX Interface Card Location DIP SwitchSettings PBX Interface Card Illustration 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 Jumper Wire/600 Wire/UK Number Complex Setting Jumpers for Dspm Card with Analog E&M InterfaceDefault Jumper Settings 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 Jumper Locations For AustralianUsers 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 Radio Frequency Interference Regulations Canadian DOCGeneral Telecommunications Regulations Mise en Garde FCC and Telephone Company Procedures and Requirements FCC Information Radiation RegulationsConcerning Electromagnetic FCC Information Preparation and Unpacking Selecting an OperatingEnvironment 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 Set Switch For Setting DIP SwitchesSwitches 1 Switch Settings for Motherboard Switches 1 DSU DIM Installation Installing the DSU DIM Step Action Result/Description Switch Settings EXT ConfigurationProcedure INT Signal Description DSU Input and Output SignalingInput Signals Output Signals CLK IDL Loopback Options DIM Troubleshooting DSU InstallationTroubleshooting If Problems Arise Example Installing DIMs Mise en Garde Installing SIMMs Installing SIMMs Installing I/O Cards Installing an I/OBRI 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 Function Description Power-Up Diagnostics/VerificationPower Up Sequence Default Default NodeCommand Setting Node to Installing Software Options Cables ConfiguringFull Mesh Cluster Cabling Usage 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 Removing/Replacing the Lithium Battery BatteryReplacing Removing the Lithium Battery Removing/Replacing the Lithium Battery Software What Is It?Alarms Statistics Overview Application Example Configure this Record/Table To do this Configuring Channelized Data Configuring Channelized Data 49 or Configuring T1 and E1 Physical PortsConfigure Ports Step Action Result Port Record Menu Configure Path Main.6 Node Port Line Framing Type GuidelinesParameters Port Number Port Type Facility Data Link Transmit ClockINT, REC Line Build Out Threshold Value-CSS Threshold Value LESThreshold Value-LCV Threshold Value-PCV Threshold Value-BES Threshold Value-ES Threshold Value Sefs Threshold Value-SES Threshold Value UAS E1 Port Record Parameters Port TypeLine Coding Line Impedance Threshold Value-CSS Threshold Value-SES Threshold Value UAS Virtual Ports Booting VirtualHow to Enabling/ Disabling Port Configuration for Channelized Data Option What You See Configuring Virtual Port Mapping Table Mapping Table Parameters Virtual Port Number Configure Select Virtual Port MappingVirtual Mapping Virtual Port DS0 Rate Time Slots Pin EIA 232-D Signals Motherboard and SDBFunction/Signal Pin Function/Signal Name Position Signal Name 35/V.36 MotherboardFunction Pin Receive Receive Clock Clock B Data Data Terminal Ready Function/SignalExternal Transmit Clock B Clock a Test Mode 35/V.36 SDB Position Signal V11 Signals Motherboard V11 Signals SDB Additional Information Ethernet RJ-45S Connector Signals Pin SignalEthernet Cable Pinouts +12V Ethernet Cable Pinouts Power Output AC InputDC Input PathBuilder S24x, 26x, and 27x Switch Specifications Numeric Status Service Description/Comments Display Error Codes Numeric Status Service Description/Comments Technical Support Country Data Rate Telephone Number Access by Analog Modem3ComFacts Automated Fax Service Access by Digital Modem Support from 3ComCountry Telephone Number Country Telephone Number Fax Number Index NumericsCTP FCC DSU Index-3 URL D-1 Simm Disabling Warm Restart World Wide Web WWW D-1 Index-6