3Com 4400, 4400 (3C17203), 4400 (3C17204), 4400 FX, 4400 PWR, 4400 SE, 4400, 4400, 4400 PWR, 4400 SE, 4400 FX 4, A, B, C, D

4PROBLEM SOLVING

Solving Problems Indicated by LEDs 58

Solving Hardware Problems 59

Solving Communication Problems 62

Solving Software Upgrade Problems 63

ASAFETY INFORMATION

Power Cord Set — Japan 65

Important Safety Information 66

L’information de Sécurité Importante 68

Wichtige Sicherheitsinformationen 70

BPIN-OUTS

Null Modem Cable 73

PC-AT Serial Cable 73

Modem Cable 74

RJ-45 Pin Assignments 74

CTECHNICAL SPECIFICATIONS

Switch 4400 (24-port) and Switch 4400 SE 77

Switch 4400 PWR (24-port) 79

Switch 4400 (48-port) 80

Switch 4400 FX 81

DOBTAINING SUPPORT FOR YOUR PRODUCT

Purchase Value-Added Services 83

Troubleshoot Online 83

Access Software Downloads 84

Telephone Technical Support and Repair 84

DUA1720-3AAA07.book Page 5 Wednesday, March 17, 2004 1:14 PM

Contents

Main 3Com Corporation 350 Campus Drive Marlborough, MA 01752-3064 C ABOUT THIS GUIDE 1 SUPERSTACK 3 SWITCH 4400 2 3 4 A B C D Page ABOUT THIS GUIDE Before You Start Conventions Related Documentation Documentation Comments Product Registration Page 1 SUPERSTACK 3 SWITCH 4400 About the Switch 4400 Switch 4400 Front View Detail 15 DUA1720-3AAA07.book Page 15 Wednesday, March 17, 2004 1:14 PM Switch 4400 Front View Detail Unit LEDs Power/Self test 3C17203SuperStack 3 346 Page Tabl e 4 LED behavior Page Switch 4400 Rear View Detail Default Settings Tabl e 5 Default Settings Page Page 2 Package Contents Choosing a Suitable Site Rack-mounting Page Placing Units On Top of Each Other Stacking Units Page Page The Power-up Sequence Page Page Page Page 3 36 CHAPTER 3: SETTING UP FOR MANAGEMENT DUA1720-3AAA07.book Page 36 Wednesday, March 17, 2004 1:14 PM Setting Up Overview Configure IP information manually for your Switch or view the automatically configured IP information Prepare for your chosen method of management Figure9 Initial Switch Setup and Mana gement Flow diagram Page Page Manually Configuring IP Information Page Page Page Page Page Page Viewing Automatically Configured IP Information Page Page Methods of Managing a Switch Setting Up Command Line Interface Page Setting Up Command Line Interface Management using SSH Setting Up Web Interface Management Setting Up SNMP Default Users and Passwords Page 4 Solving Problems Indicated by LEDs Solving Hardwa re Problems Page Page Solving Communication Problems Solving Software Upgrade Problems Page A Power Cord Set Japan Important Safety Information Page Linformation de Scurit Importante Page Wichtige Sicherheitsinformationen Page Page Page Modem Cable RJ-45 Pin Assignments Pin assignments are identical for 10BASE-TX and 100BASE-T RJ-45 connectors. Table10 Pin assignments Table11 Pin assignments Page C Switch 4400 (24-port) and Switch 4400 SE Page Switch 4400 PWR (24-port) Switch 4400 (48-port) Switch 4400 FX Page D P Register Your Product to Gain Service Benefits Purchase Value-Added Services Troubleshoot Online Access Software Downloads Contact Us Telephone Technical Support and Repair Page Page I Numbers A B C R S T U W REGULATORY NOTICES FCC S I NFORMATION T O T HE U CSA S VCCI S

3Com 4, A, B, C, D

Models: 4400 4400 (3C17203) 4400 (3C17204) 4400 FX 4400 PWR 4400 SE 4400, 4400, 4400 PWR, 4400 SE, 4400 FX