31
.
Normal Operation
After successful completion of the power on phase, the ATM
Interface Module begins to function in the normal state.
Port Status LEDs
Below the Module Status LED is a group of eight
port status LEDs. Referring to Figure 29, the status of each ATM port
is indicated by its corresponding port status LED. The number under
each port status LED corresponds to the number of its port.
Figure 29
Port Status LEDs
There are five possible states for each port; each is indicated by a
different LED color and blinking mode. Table 4 presents the port
states and the corresponding LED indications.
Table 3
Module Status LED Indications during Power-on
LED Indication
Blinking?
System Event
Green
Yes
Power on phase executing
Green
No
Power on phase completed; normal
operation started
Yellow
No
Failure (see
ATM Interface Module
User Guide
)
Table 4
Port LED Indications
Port State
LED Color
Blinking?
Cable is connected to port. There is no traffic
through the port.
Green
No
There is traffic through the port.
Green
Yes
Remote alarm is indicated. (See
“Troubleshooting” chapter in the
ATM
Interface Module User Guide
).
Yellow
No
(continued)
1
1
2
3
4
1
2
2
3
4
M
od
.S
ta
t.
Rx
1
Tx
Rx
2
Tx
LED position corresponds to port position
