Normal Led Meanings; System Leds; Serial Leds - 3Com SuperStack II User Manual

30 C 3: F
HAPTER EATURES AND
Normal LED
Meanings

System LEDs

yy
Normal operation
Run
yy
Load
Status
Test
y
SYSTEM
Lights green when the software has successfully loaded and is running.
y Run
Unlit in normal operation. Flashes green during startup to indicate system is loading software. Lights
Load
amber when there is a load problem.
Unlit in normal operation. Lights amber during startup to indicate system is running self-tests.
Test
Status
Provides additional status for the Run, Load, and Test LEDs.

Serial LEDs

A B C D
Link
Active
Fault
Normal operation
S
PECIFICATIONS
The following sections describe the normal operation of the SuperStack II
bridge/router LEDs. For information about LED error modes, see the
SuperStack II bridge/router software guide.
The system LEDs are on the right side of the SuperStack II front panel.
y
y
Power
Aux
/Fault
Power
Fwd
Fwd
/Fault
The following figure describes the serial LEDs.
A B C* D*
Link
Active
Fault
* Model 5xx only
Lights green when unit has power. Lights amber if there is
a problem with power. When unlit, power to unit is off.
Flashes green each time a packet is forwarded between
two ports.
Reserved for future use (model 4xx only).
Aux
Lights green when the path is up.
Lights green when there is a physical connection to a serial
device such as a CSU/DSU or modem
Unlit in normal operation. Lights amber if an error in the
frames is detected.