3Com 3CNJ205 User Manual page 4

Contents
Specifications 57
Default Settings 61
Optional Components 63
Power Supplies and IP Phone Power Module 63
Mounting Plates and Spacers 64
Power Options 65
Using an Integrated Switch with Power Over Ethernet 66
Using Ethernet Multi-port Midspan Power Supply 67
Using a Single-port Ethernet Power Supply 69
Using the 3Com Local Power Supply 70
Installation Planning 73
Troubleshooting 75
Troubleshooting Matrix 76
One-Year Free Installation Support 79
Online Technical Services 79
Technical Support 79
Support from Your Network Supplier 81
Support from 3Com 82
Returning Products for Repair 82
3Com Corporation Limited Warranty 83
Limited Warranty and Regulatory Compliance
Information