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3Com 3CR17450-91, 3CR17451-91 manual Switch 3870 48 Port

Models: 3CR17451-91 3CR17450-91

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74APPENDIX C: TECHNICAL SPECIFICATIONS

Switch 3870 (48 Port)

Physical Dimensions	Height: 43.6 mm (1.7 in.) x Width: 440 mm (17.32 in.) x Depth: 415 mm
	(16.34 in.). Weight: Under 5.0 kg.

Environmental
Requirements
Operating Temperature	0 ° to 40 °C (32 ° to 104 °F)
Storage Temperature	–10 ° to +70 °C (14 ° to 158 °F)
Operating Humidity	10–95% relative humidity, non-condensing
Standards	EN60068 to 3Com schedule (package testing: paras 2.1, 2.2, 2.30 and 2.32.
	Operational testing: paras 2.1, 2.2, 2.30 and 2.13.

Safety
Agency Certifications	UL 60950, EN60950, CSA 22.2 No. 60950, IEC 60950, IEC825-1, EN60825-1

EMC
Emissions	CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,
	ICES-003 Class A, VCCI Class A, AS/NZS 3548 Class A, EN61000-3-2, EN61000-3-3
Immunity	EN 55024

Power Consumption	149 watts maximum

Heat Dissipation	508 BTU/hour maximum

Power Supply
AC Line Frequency	50/60 Hz
Input Voltage Options	100–240 VAC
Current Rating	1.24A (amps)(maximum)

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3Com 3CR17450-91, 3CR17451-91 manual Switch 3870 48 Port

Contents

SuperStack 3 Switch 3870 Family Getting Started Guide 3Com Corporation Campus Drive Marlborough MA USA United States Government LegendContents Setting UP for Management PIN-OUTS Page About this Guide Icon Description ConventionsConvention Description Documentation RelatedDocumentation documentation To access the online documentation from the CD-ROM CommentsSwitch 3870Hardware Features Switch Switch Front View Detail1000BASE-T Ports Stacking Status LED Color Indicates Port Status/Packet LEDsStack Master LED Power/Self Test LED Fault LEDColor Indicates Module LEDs Unit LEDView Detail Feature Switch Port Status Duplex ModeType of Unit Total Units in the Stack Maximum Modules Port Port SpeedDefault Settings Introducing the Superstack 3 Switch Installing the Switch Choosing a Suitable Package ContentsSite Power lines and fluorescent lighting fixtures To rack-mount your SwitchSwitch, as shown in Figure Rack-mountingRepeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack-mountingPower-up Powered-up and ready for operationSwitch SequencePower System output Cross-over Cable Straight-through CableSFP Operation Remove the plastic protective cover if fitted Transceiver Your SwitchRemoving an SFP Installing the Switch Setting UP for Management Setting Up OverviewManual IP Configuration Automatic IP ConfigurationSetting UP for Management Manually Configuring IP Information Pre-requisitesConnecting the Workstation to the Switch Setting Up the Switch with IP InformationExample top-level command line interface menu Viewing Configured IPAutomatically Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Refer to Setting Up Command Line Interface Management on Command Line Interface ManagementWeb Interface ManagementNetwork Using Telnet Where xxx.xxx.xxx.xxx is the IP address of the SwitchSetting Up Web InterfaceChoosing a Browser Over the NetworkDefault Users Setting Up SnmpPasswords User Default Access Level Name Password Security Device User Modify operation on the web interfaceProblem Solving Solving Problems Power/Self Test LED does not lightOn powering-up, the Power/Self Test LED remains yellow Indicated by LEDsProblems Refer to the list of suggested solutions belowSolving Hardware Port Status LED is flashing green/yellowFan failure warning message is received Unit fails or Snmp thermal shutdown trap is receivedError message indicating that the SFP transceiver is faulty Solving Communication ProblemsIP Addressing How do you obtain a registered IP Address? Solving Software Upgrade Problems Problem Solving Safety Information Power Cord Set Japan Important Safety Information This must be approved for the country where it is usedImportant Safety Information ’information de Sécurité Importante Class’information de Sécurité Importante Dispositif Laser De Classe Wichtige Sicherheitsinformationen Vorsicht EuropeInformación de seguridad importante Laser Gerät der KlasseSchuko Appendix a Safety Information Importanti Informazioni di Sicurezza CSASolo Regno Ważne informacje o zabezpieczeniach Appendix a Safety Information Laser Produkt Klasa Appendix a Safety Information Null Modem Cable RJ-45 to RS-232 25-pin PC-AT Serial CableRJ-45 to 9-pin Modem Cable RJ-45 Pin AssignmentsRJ-45 to RS-232 25-pin Pin Number 10/100 1000Pin Number 10/100 1000 Appendix B PIN-OUTS Switch 3870 24 Port Switch 3870 48 Port Product to Gain Service Benefits ServicesRegister Your PurchaseAccess Software DownloadsContact Us Telephone TechnicalAustralia 800 678 Philippines US and Canada Telephone Technical Support and Repair Index SFP Page Chapter Index Regulatory Notices