ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance

TAP-101

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ALARM TROUBLESHOOTING

Summary: This TAP describes the various alarm screens in the Craft Interface. An accurate diagnosis of the Active Alarms or Alarm History screens allows you to determine where the trouble is and dispatch the appropriate technician to isolate and repair the problem.

1.Log on to the Craft Interface. The Main Menu will then be displayed on your screen. Reference: DLP-526Craft Interface System Logon

2.To silence any audible alarms, use the arrow or number keys to select System Maintenance from the Main Menu and execute an Alarm Cut-Off (ACO).

Reference: DLP-539ACO (Alarm Cut-Off) Command

3.Use the arrow or number keys to select Alarms from the Main Menu. Press Enter or Return. The Alarms menu will be displayed on your screen.

4.Use the arrow or number keys to select Display Active Alarms or Display Alarm History from the Alarms menu. Press Enter or Return. The screen you selected will appear. Active Alarms screens are shown in Figure 101-1(MPU Software Version 5.1), and Figure 101-2(V5.2). Alarm History screens are shown in Figure 101-3(V5.1), and Figure 101-4(V5.2).

Note: If the date and time of the alarm are important to your diagnosis, select the Alarm History screen. The Alarm History screen displays the date and time of the alarms stored in the history file.

5.Screen Navigation: A maximum of 112 entries is displayed on the screen. Use the following for description of keys that can be used to navigate the screen:

KEY

ACTION

Up Arrow

Scrolls display up 1 line

 

 

Down Arrow

Scrolls display down one line

 

 

Left Arrow

Scrolls display up 1 page

 

 

Right Arrow

Scrolls display down one page

 

 

Control-R

Queries the database and refreshes the screen

 

 

6.Column Descriptions: There are six columns that appear on the Active Alarms screen: Access Identifier, Locn (Location), Circuit Identifier, Condition, St (Status), and ACO. There are seven columns that appear on the Alarm History screen: Date, Time, Access Identifier, Locn (Location), Circuit Identifier, Condition, and St (Status).

The Access ID (AID) column identifies an entity in the chassis to which the alarm condition pertains. Different alarm conditions result in different types of AIDs. The AID consists of several parts: the Identifier, the Shelf, the Group, the Slot, and the Site or Loop Number, as described below. See Figure 101-5for a complete definition of the Access Identifier.

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