Enterasys A4H254-8F8T User Manual

Checking the LEDs
3-4 Troubleshooting
DOWN LED
The STACK DOWN LED indicates the state of the connection to the switch stack up connector, as
described in Table 3-4.
CPU LED
The CPU LED indicates the status of the system operation, as described in Table 3-5.
Table 3-4 DOWN LED Definitions
Color State Recommended Action
Off No valid connection to switch stack up
connector.
1. Make sure the switch connected to the
stack up connector is powered on.
2. Replace cable with a known good one.
3. If the problem still exists, contact
Enterasys Networks for technical support.
Green Solid. Valid connection to switch stack up
connector.
None.
Blinking. Information is being transferred
through the stacking cable.
None.
Table 3-5 CPU LED Definitions
Color State Recommended Action
Off Power disconnected. If the LED remains off after connecting AC
power or DC power from an RPS, check the
following:
1. Make sure there is power at the power
source (AC source and RPS if applicable).
2. Replace the power cord with a known
good one or check the continuity of the
power cord.
3. If the switch still does not power up, the
system may have a fatal error. Contact
Enterasys Networks for technical support.
Red Solid. Boot-up failed. If the LED remains red for several minutes,
the system may have a fatal error. Contact
Enterasys Networks for technical support.
Blinking. Diagnostics have failed. Contact Enterasys Networks for technical
support.
Amber Solid. Diagnostics are running. If the LED remains amber for more than
several minutes, contact Enterasys Networks
for technical support.
Blinking. Code image is being
downloaded, or the Manager switch is
copying its configuration to the other
members in the stack. (This happens
automatically every 15 minutes and every
time the save config command is
executed.
None.

Enterasys A4H254-8F8T Specifications

General

Brand	Enterasys
Model	A4H254-8F8T
Category	Switch
Language	English