3Com 3CNJPSE24 - Manual (Page 28)

Appendix C — Troubleshooting
Ethernet Power Supply User s Guide C-1
Troubleshooting
Introduction
This section helps you locate problems related to the Ethernet
Power Supply setup and functionality.
This section provides a problem and resolution sequence to
assist in troubleshooting minor operating problems. If the
provided resolutions do not solve your problem, call 3Com for
further assistance.
If you encounter problems, make sure:
— Power is applied to the Ethernet Power Supply.
— A crossover type Ethernet cable is not used.
— An input Ethernet cable is connected to the
Data port.
— An output Ethernet cable is connected to the
Data & Power port.
— The input and output cable pairs are attached to
corresponding ports.
C