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3Com 3C17304 Getting Started Guide - Page 69

BASE-T RJ-45 Pin Assignments, Table 11

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1000BASE-T RJ-45 Pin Assignments 69 Table 11 Pin assignments Pin Number Signal Ports configured as MDIX 1 Receive Data + 2 Receive Data - 3 Transmit Data + 4 Not assigned 5 Not assigned 6 Transmit Data 7 Not assigned 8 Not assigned Function Bidirectional Data B+ Bidirectional Data BBidirectional Data A+ Bidirectional Data ABidirectional Data D+ Bidirectional Data DBidirectional Data C+ Bidirectional Data C- 1000BASE-T RJ-45 Pin Assignments Table 12 and Table 13 show the pin assignments for the 1000BASE-T RJ-45 connectors. Table 12 Pin assignments Pin Number Signal Ports configured as MDI 1 Transmit/Recieve A + 2 Transmit/Recieve A - 3 Transmit/Recieve B + 4 Transmit/Recieve C + 5 Transmit/Recieve C - 6 Transmit/Recieve B - 7 Transmit/Recieve D + 8 Transmit/Recieve D - Function Bidirectional Data A+ Bidirectional Data ABidirectional Data B+ Bidirectional Data C+ Bidirectional Data CBidirectional Data BBidirectional Data D+ Bidirectional Data D-

Section	Page
Contents	3
About This Guide	7
Conventions	8
Related Documentation	9
Accessing Online Documentation	10
Product Registration	10
Documentation Comments	10
Introducing the SuperStack3 Switch 4200 Series	11
About the Switch 4200 Series	12
Summary of Hardware Features	12
Switch 4200 Series — Front View Detail	13
10BASE-T/ 100BASE-TX Ports	14
10/100/1000BASE-T Ports	14
GBIC Ports	14
LEDs	15
Switch 4200 Series — Rear View Detail	17
Power Socket	17
Redundant Power System Socket	17
Console Port	17
Default Settings	18
Installing the Switch	19
Package Contents	20
Choosing a Suitable Site	20
Rack-mounting	21
Placing Units On Top of Each Other	23
Stacking Units	23
The Power-up Sequence	24
Powering-up the Switch 4200 Series	24
Checking for Correct Operation of LEDs	24
Connecting a Redundant Power System	25
Choosing the Correct Cables	25
Choosing the correct Fiber cables	26
GBIC Operation	27
Approved GBIC Transceivers	27
Inserting a GBIC Transceiver	27
Setting Up for Management	31
Setting Up Overview	32
IP Configuration	33
Preparing for Management	34
Manually Configuring IP Information	35
Connecting to a Front Panel Port	35
Connecting to the Console Port	38
Viewing Automatically Configured IP Information	42
Using 3Com Network Supervisor	42
Connecting to the Console Port	42
Methods of Managing a Switch	45
Command Line Interface Management	45
Web Interface Management	46
SNMP Management	46
Setting Up Command Line Interface Management	47
CLI Management via the Console Port	47
CLI Management over the Network	47
Setting Up Web Interface Management	48
Pre-requisites	48
Web Management Over the Network	49
Setting Up SNMP Management	49
Pre-requisites	50
Default Users and Passwords	50
Changing Default Passwords	50
Problem Solving	53
Solving Problems Indicated by LEDs	54
Solving Hardware Problems	55
Solving Communication Problems	55
Solving Stack Formation Problems	56
Solving Software Upgrade Problems	57
Safety Information	59
Important Safety Information	60
L’information de Sécurité Importante	62
Wichtige Sicherheitsinformationen	64
Pin-outs	67
Null Modem Cable	67
PC-AT Serial Cable	67
Modem Cable	68
RJ-45 Pin Assignments	68
1000BASE-T RJ-45 Pin Assignments	69
Technical Specifications	71
Switch 4226T (3C17300)	71
Switch 4250T (3C17302)	73
Switch 4228G (3C17304)	74
Technical Support	75
Online Technical Services	75
World Wide Web Site	75
3Com Knowledgebase Web Services	76
3Com FTP Site	76
Support from Your Network Supplier	76
Support from 3Com	77
Internet Support	77
Telephone Support	77
Returning Products forRepair	79
Index	81