ADTRAN MX2800 M13 - Manual (Page 37)

MX2800 M13 Multiplexer User Manual Installation and Operation, Section 2
61200290L1-1G 2-15
Logout
The Logout selection ends the terminal session and logs out of the system. A valid username and password
are required before a new session can begin. The unit will also log out of a terminal session automatically
if the session remains inactive for a certain period of time. For more information, see the section
Terminal
Time Out on page 3-33.
Privilege Level
The privilege level of the currently active terminal session is displayed in this field.
ACO Buttons
The ACO (alarm cut off) buttons turn off an active audible alarm. Since the buttons are recessed, use a pen
or other pointed instrument to press them. Once an ACO button deactivates an alarm, the alarm remains
disabled until the condition has cleared.
Alarms can also be turned off remotely by using a selection found in the Status menu. For more
information, refer to Acknowledge Alarms (ACO) on page 4-6.
LED Descriptions
The MX2800 has LED status indicators for the power supplies, the DS3 state, the controller cards, and the
individual T1s/E1s. These LEDs are identified below:
Power Supply A/B Status LEDs
The PWR LED is active when the unit is on and receiving full power. The CHK LED is active when the
power supply is failing or is providing low power and needs to be checked.
Controller Cards Status LEDs
The STATUS LEDs apply to the two controller cards. The LEDs provided are ACT (active), DS3 , ALM
(alarm), and PRF (performance). Various conditions are indicated by the state of the LED (its color and
whether it blinks, alternates color, or is on solid). The condition descriptions vary depending on whether
the LED represents the active controller card or the controller card on standby. The following tables
provide LED definitions for the active cards (see
Table 2-3 on page 2-16) and T1/E1 cards (see Table 2-4
on page 2-17).