3Com 3C16987A manual Null Modem Cable, PC-AT Serial Cable, Pin to RS-232 25-pin, Pin to 9-pin

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B PIN-OUTS

Null Modem Cable	9-pin to RS-232 25-pin
	Switch 3300 SM		PC/Terminal
	Cable connector: 9-pin female		Cable connector: 25-pin male/female
	Screen	Shell	1	Screen	only required if screen
	Screen	Shell	1	Screen
	TxD	3	3	RxD
	RxD	2	2	TxD	always required
	Ground	5	7	Ground
	RTS	7	4	RTS
	CTS	8	20	DTR
	DSR	6	5	CTS	required for handshake
	DCD	1	6	DSR
	DTR	4	8	DCD

PC-AT Serial Cable	9-pin to 9-pin
	Switch 3300 SM		PC-AT Serial Port
	Cable connector: 9-pin female		Cable connector: 9-pin female
	Screen	Shell	Shell	Screen	only required if screen
	Screen	Shell	Shell	Screen
	DTR	4	1	DCD
	TxD	3	2	RxD	always required
	RxD	2	3	TxD
	CTS	8	4	DTR	required for handshake
	CTS	8	4	DTR
	Ground	5	5	Ground	always required
	DSR	6	6	DSR
	RTS	7	7	RTS	required for handshake
	RTS	7	7	RTS
	DCD	1	8	CTS

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Contents SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents PIN-OUTS Page Page About this Guide Convention Description ConventionsIcon Description Documentation RelatedCompliance YearComments ProductIntroducing the Switch 3300 SM Summary of Features About SuperStack Switch 3300 SMSwitch 3300 SM front view Switch 3300 SM Front View DetailUnit LEDs Power/Self Test LEDColor Indicates Port Status LEDs Power Socket Switch 3300 SM Rear View DetailUnits on Switch 3300 SM as a ConfigurationNetwork ExamplesUsing the Switch as a collapsed backbone SwitchUsing the Switch in a desktop environment Fast Ethernet configuration rules Configuration Rules with Full Duplex Configuration Rules for Gigabit Ethernet Installing the Switch Rack-mounting Fitting a bracket for rack mounting Repeat steps 2 and 3 for the other side of the Switch3C16965. Contact your supplier for details Stacking UnitsTreated as a single manageable unit with one IP address You need only one SuperStack 3 Switch 3300 MM per stack Stack of three units Powered-up and ready for operation Power-upSwitch 3300 SM SequenceCorrect Cables ChoosingPort, you need a cross-overcable. Most of the 10BASE-T Color StateProblem Network. For information on managing the Switch using SwitchManaging GuideSafety Information Personnel only Important SafetyInformation Important Safety Information Sécurité Importante ’information dePersonnel qualifié Étroites’information de Sécurité Importante Wichtige Sicherheitsinformat ionen Warnhinweis Faseroptikanschlüsse Optische Sicherheit Appendix a Safety Information PC-AT Serial Cable Null Modem CablePin to RS-232 25-pin Pin to 9-pinPin Number Signal Function ConnectorsModem Cable RJ45 PinPin Number Signal Function Appendix B PIN-OUTS Safety Physical DimensionsPower Supply Environmental RequirementsVlan MIB RFC Online Technical ServicesUsername anonymous Country Telephone Number Asia, Pacific Rim Europe, South Africa, and Middle EastCountry Telephone Number Fax Number Glossary Collision BroadcastEndstation EthernetLine speed See baud Multicast LoopProtocol RepeaterStack ServerSuperStack TelnetGlossary Index Index 3Com Corporation Limited Warranty Page Disclaimer Regulatory Notices

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