Troubleshooting guide

Section 5, User Interface Guide - UIG-510, Status
61186003L1-1D 5-19
SCU ALARMS
View the status of SCU alarms by selecting the following options:
• Select SYSTEM CONTROLLER, from the MX2820 Main Menu, and press ENTER.
• Select STATUS, from the System Controller menu, and press ENTER.
• Return to the MX2820 Main Menu, by pressing ESC until the menu appears.
Figure 5-7 shows the SCU Status screen. The following subsection describes the fields in the
External Inputs section.
Figure 5-7. SCU Status Screen
External Inputs
The External Inputs section provides the status of environmental alarm connections on the
backplane of the MX2820. A description of these is provided in Table 5-1.
Table 5-1. SCU Alarm Status Screen, External Inputs
Input Name Severity Description
Ext ACO N/A The Alarm Cutoff acknowledges any unacknowledged alarms.
AUX #1, #2 User Definable These alarms are user definable alarms. The severity as well as
the description string can be modified.
AUX #3A User Definable When acting as a fan alarm, this input will generate a solid
alarm signal which indicates a complete failure of the fan mod
-
ule.
Shelf: 1 ADTRAN MX2820 System 04/21/04 23:09
Unacknowledged Alarms: None TID: HTVLALEXD16
Status
Hardware LEDs
Ethernet Link : Up ACT : Grn/Ylw
ALM : Red
Alarm Relays
Critical Inactive
Major Active
Minor Inactive
External Inputs Status Level
Ext ACO Inactive N/A
AUX #1 INPUT Inactive MAJOR
AUX #2 INPUT Inactive MAJOR
AUX #3A INPUT Inactive MAJOR
AUX #3B INPUT Inactive MAJOR
PWR Bus A Active MAJOR
PWR Bus B Inactive MAJOR
'?' - System Help Screen