Table 4-2. Atlas 550 Front Panel Description - ADTRAN Atlas 550 User Manual

Feature
Controller Status LEDs
Power
System
Ethernet
Remote
Network Module LEDs
OK
Test
Error
Alarm
Option Module LEDs
Status
Online
Test
ACO Switch
CRAFT Port
61200305L1-1

Table 4-2. ATLAS 550 Front Panel Description

Displays the general status of the entire ATLAS 550. (See also Table 4-3
on page 4-4.)
Indicates the unit is on or off.
Indicates the status of the system.
Indicates the status of the ethernet port.
Indicates whether a user is logged into the unit.
Displays the status of the network interface. (See also Table 4-3.) All
LEDs are off if no network module is installed.
Indicates that the network interface is operating correctly.
Indicates that the network interface is in a test mode.
Blinks to indicate the occurrence of error events.
Indicates an alarm condition on the network interface.
Displays by row the operational condition of each module installed in the
option slots. (See also Table 4-3 on page 4-4.) All LEDs will be off if no
option module is installed.
Indicates the operational condition of modules installed in the option
slots.
Indicates whether the module is available for use or is currently in use. If
the module is manually taken offline, this LED is turned off.
Indicates that one or more ports within a module are in test.
Clears the Alarm Relay connection located on the rear panel of the
ATLAS 550.
Allows the ATLAS 550 to connect to a computer or modem using the
CRAFT port (an EIA-232 port).
ATLAS 550 User Manual
Chapter 4. Using the Front Panel
Description
4-3