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

B PIN-OUTS

Null Modem Cable	9-pin to RS-232 25-pin
	Switch 4200	PC/Terminal
	Cable connector: 9-pin female	Cable connector: 25-pin male/female

Screen Shell

TxD 3

RxD 2

Ground 5

RTS 7

CTS 8

DSR 6

DCD 1

DTR 4

1 Screen

3 RxD

2 TxD

7 Ground

4 RTS

20 DTR

5CTS

6DSR

8DCD

only required if screen

always required

required for handshake

PC-AT Serial Cable	9-pin to 9-pin
	Switch 4200	PC-AT Serial Port
	Cable connector: 9-pin female	Cable connector: 9-pin female

Screen	Shell	Shell	Screen
DTR	4	1	DCD
TxD	3	2	RxD
RxD	2	3	TxD
CTS	8	4	DTR
Ground	5	5	Ground
DSR	6	6	DSR
RTS	7	7	RTS
DCD	1	8	CTS

only required if screen

Required for handshake

always required

required for handshake

always required

required for handshake

Image 69

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

Contents

SuperStack United States Government Legend 3Com Corporation 350 Campus Drive Marlborough, MA Contents Setting UP for Management PIN-OUTS Page About this Guide Conventions Icon DescriptionConvention Description Documentation Related About this Guide Introducing Family About the Switch Front View Detail Switch 4200 Family Introducing the Superstack 3 Switch 4200 Family Port Status LEDs SFP ports Color Indicates Port Status LEDs 10BASE-T/100BASE-TX portsPort Status LEDs 10/100/1000BASE-T ports Unit LEDs LED Color Indicates Power/Self Test LED Rear View DetailAlert LED Duplex Mode Feature Switch 4200 Family Automatic IP ConfigurationRmon Alarm Quality of Service QoS Introducing the Superstack 3 Switch 4200 Family Installing the Switch Package Contents Choosing a SuitableSite Rack-mounting Fitting a bracket for rack-mounting Repeat steps 2 and 3 for the other side of the Switch Placing Units On Top of Each OtherStacking Units Powering-up Power-upSwitch 4200 Family Sequence SFP port on the Switch 4200 28-Port SFP OperationColor State Installing the Switch Choosing Your SwitchCorrect Cables Transceiver Cross-over Cable Straight-through Cable Fiber Cables Choosing the Correct Cables Installing the Switch Setting UP for Management Configure IP information manually for your Switch or view Setting UpAutomatically configured IP information Overview Automatic IP Configuration Manual IP Configuration Setting UP for Management Pre-requisites Manually Configuring IP Information Connecting the Workstation to the Switch Configuring the Workstation with IP InformationSetting Up the Switch with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu Connecting a workstation to the Switch via the console port Setting Up the Switch with IP Information Example top-level command line interface menu Configured IP ViewingAutomatically Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Methods of Managing a Switch Refer to Setting Up Command Line Interface Management on Network Using Telnet Command LineInterface Management CLI Management via Setting Up Web InterfaceChoosing a Browser Management Protocol Snmp can manage a Switch if Setting Up SnmpOver the Network Management workstation User Default Access Level Name Password Default Users Security Device User Modify operation on the web interface Security device user modify command on the CLI, or Setting UP for Management For Technical Support information, see Appendix D Problem Solving Solutions below Solving ProblemsPower LED does not light On powering-up, the Power/Self Test LED lights yellow Solving Communication Problems Error message indicating that the SFP transceiver is faultyIP Addressing Solving Stack Upgrade ProblemsFormation Solving Software Safety Information This must be approved for the country where it is used Important Safety Information Important Safety Information ’information de Sécurité Importante Schko Wichtige Sicherheitsinformationen Vorsicht Europe Información de seguridad importante Schuko Importanti informazioni di sicurezza Avvertenza Lunità deve disporre di messa a terra Prodotto Laser Classe PC-AT Serial Cable Null Modem CablePin to RS-232 25-pin Pin to 9-pin RJ-45 Pin Modem CableAssignments Pin Number 10/100 1000 Pin Number 10/100 1000 Appendix B PIN-OUTS Switch 4200 26-Port 3C17300A Switch 4200 50-Port 3C17302A Switch 4200 28-Port 3C17304A Appendix C Technical Specifications Register Your ServicesProduct Purchase Troubleshoot Access SoftwareOnline Downloads Contact Us Country Telephone Number Latin America Telephone Technical Support and RepairUS and Canada Telephone Technical Support and Repair Numbers Index SFP ports 14 SFP transceiver Regulatory Notices