System States - 3Com CoreBuilder 9000 ATM Interface Module Quick Start Manual

30 ATM I M
NTERFACE ODULE

System States

Q S G
UICK TART UIDE
This section describes the different system states of the CoreBuilder 9000
ATM Interface Module and how they are indicated on the LED panel. The
system states are:


Power on


Normal Operation


Loop-back Test


Failure
Power On
The power on phase of the ATM Interface Module consists of the
following steps:


Initializing Flash software


Downloading operational software from the ATM Switch Fabric
module


Initializing operational software


Executing port diagnostic tests
Module Status LED The Module Status LED indicates the system state
of the ATM Interface Module. This LED is located on the top of the ATM
Interface Module (shown on the left of Figure 28).
Figure 28 ATM Interface Module LEDs
Module Status LED
During the power on phase, the Module Status LED blinks green. When
the power on phase has completed successfully, normal operation begins
and the Module Status LED stops blinking and remains a steady green. If
one of the power on diagnostic tests fails, the Module Status LED turns a
steady yellow. The entire power on phase takes about a few seconds.
Table 3 shows the Module Status LED indications.