Switch 3870 24 Port | 3Com 3CR17451-91, 3CR17450-91 manual

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TECHNICAL SPECIFICATIONS

Switch 3870 (24 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	102 watts maximum

Heat Dissipation	348 BTU/hour maximum

Power Supply
AC Line Frequency	50/60 Hz
Input Voltage Options	100–240 VAC
Current Rating	0.85A (amps)(maximum)

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3Com 3CR17451-91, 3CR17450-91 manual Switch 3870 24 Port

Contents

SuperStack 3 Switch 3870 Family Getting Started Guide United States Government Legend 3Com Corporation Campus Drive Marlborough MA USA Contents Setting UP for Management PIN-OUTS Page About this Guide Conventions Icon DescriptionConvention Description Related DocumentationDocumentation documentation Comments To access the online documentation from the CD-ROM 3870 Switch Hardware Features Switch Front View Detail Switch 1000BASE-T Ports Color Indicates Port Status/Packet LEDs Stacking Status LEDStack Master LED Unit LED Power/Self Test LEDFault LED Color Indicates Module LEDs View Detail Port Speed Feature Switch Port StatusDuplex Mode Type of Unit Total Units in the Stack Maximum Modules Port Default Settings Introducing the Superstack 3 Switch Installing the Switch Package Contents Choosing a SuitableSite Rack-mounting Power lines and fluorescent lighting fixturesTo rack-mount your Switch Switch, as shown in Figure Fitting a bracket for rack-mounting Repeat steps 2 and 3 for the other side of the Switch Sequence Power-upPowered-up and ready for operation Switch Cross-over Cable Straight-through Cable Power System output SFP Operation Remove the plastic protective cover if fitted Your Switch TransceiverRemoving an SFP Installing the Switch Setting UP for Management Overview Setting Up Automatic IP Configuration Manual IP Configuration Setting UP for Management Pre-requisites Manually Configuring IP Information Setting Up the Switch with IP Information Connecting the Workstation to the Switch Example top-level command line interface menu Configured IP ViewingAutomatically Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Refer to Setting Up Command Line Interface Management on Management Command LineInterface Management Web Interface Where xxx.xxx.xxx.xxx is the IP address of the Switch Network Using Telnet Over the Network Setting Up WebInterface Choosing a Browser Setting Up Snmp Default UsersPasswords Security Device User Modify operation on the web interface User Default Access Level Name Password Problem Solving Indicated by LEDs Solving ProblemsPower/Self Test LED does not light On powering-up, the Power/Self Test LED remains yellow Port Status LED is flashing green/yellow ProblemsRefer to the list of suggested solutions below Solving Hardware Unit fails or Snmp thermal shutdown trap is received Fan failure warning message is received Solving Communication Problems Error message indicating that the SFP transceiver is faultyIP Addressing How do you obtain a registered IP Address? Solving Software Upgrade Problems Problem Solving Safety Information This must be approved for the country where it is used Power Cord Set Japan Important Safety Information Important Safety Information Class ’information de Sécurité Importante ’information de Sécurité Importante Dispositif Laser De Classe Vorsicht Europe Wichtige Sicherheitsinformationen Laser Gerät der Klasse Información de seguridad importante Schuko Appendix a Safety Information CSA Importanti Informazioni di Sicurezza Solo Regno Ważne informacje o zabezpieczeniach Appendix a Safety Information Laser Produkt Klasa Appendix a Safety Information PC-AT Serial Cable Null Modem Cable RJ-45 to RS-232 25-pinRJ-45 to 9-pin Pin Number 10/100 1000 Modem CableRJ-45 Pin Assignments RJ-45 to RS-232 25-pin Pin Number 10/100 1000 Appendix B PIN-OUTS Switch 3870 24 Port Switch 3870 48 Port Purchase Product to Gain Service BenefitsServices Register Your Telephone Technical Access SoftwareDownloads Contact Us Australia 800 678 Philippines US and Canada Telephone Technical Support and Repair Index SFP Page Chapter Index Regulatory Notices