Power-Up Diagnostics; System Diagnostics; Power Led Activity; Fault Led Activity - 3Com 3C94024 - CoreBuilder 9400 1000SX Switch Getting Started Manual

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HAPTER YSTEM

Power-up Diagnostics

The CoreBuilder 9400 system runs diagnostic
software at power up. This software verifies that the
system works before you add it to the network.
If any component fails during power-up diagnostics,
the system fails to power up.
During power up, the system and port status LEDs
provide information about the CoreBuilder 9400
system. See Figure 1 in Chapter 1 for the location of
the LEDs.
To view error messages that are displayed during
power-up diagnostics, connect a terminal,
workstation, or PC that has terminal emulation to the
system's Console port. See Chapter 3.

System Diagnostics

This section describes the LEDs that provide
information about the system as a whole.

Power LED Activity

Green — The system is on; the system is running
or has run diagnostics.
No Light — The system has no power; no
diagnostics are running.
P U
OWER P

Fault LED Activity

No Light — System diagnostics have been
successfully completed and the system is
operational.
Solid or Blinking Yellow — The system has failed
diagnostics, or some other operational error has
occurred.
See Chapter 6 for troubleshooting information.

Gigabit Ethernet Port Diagnostics

This section summarizes the information displayed by
the port LEDs.

Packet LED Activity

No light — Data is not being transmitted or
received by the port.
Blinking yellow — Data is not being transmitted
or received by the port.
Yellow — Data is passing through the port.

Status LED Activity

No light — The port is off-line.
Blinking green — The port is online but disabled.
Green — The port is online and enabled.
See Chapter 6 for troubleshooting information.