User's Manual Part 2

Introduction to EMS Overview of EMS Tasks
Element Management System (EMS) 4.0 User Manual
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1.6 Overview of EMS Tasks
Table 1 summarizes the tasks done using EMS.
Table 1: Summary of EMS Tasks
TASK DESCRIPTION
Determine which network
elements are currently con-
nected
You can do this inside the Maintenance Interface by
using a menu item to refresh the “catalog” of host/
remote pairs. If using the NOC-NEM interface, you can
enter a command to do this.
Enter site name and site
number
When turning up a host/remote pair and “introducing”
the units to EMS, you can give them a site name and
(host only) site number. If using the NOC-NEM inter-
face, you can enter a command to do this.
Check for alarms You can check an alarm overview window to determine
if any network element has an alarm. If so, you can
view an alarm detail window to check individual alarm
indicators in the alarmed network element. Any new
alarm also causes the NOC–NEM window, if open, to
scroll down with new text as the alarm is reported.
Acknowledge alarms Using the alarm overview window, you can also deter-
mine which alarms, if any, remain to be investigated.
Every alarm, when it first occurs, is flagged with an
alarm history indicator (red or yellow). The indicator
remains in the window until someone clicks on it to
acknowledge that the alarm has been noticed.
Determine current status You can check the current status of any network ele-
ment using seven function-related windows (for exam-
ple, there are separate windows for optics functions and
DC power). In addition, the NOC–NEM window dis-
plays periodic messages summarizing the current status
of all connected pairs.
Obtain status history and
alarm history text
Using the NOC–NEM window, you can retrieve status
and alarm messages written to the EMS log file. You
can also scroll back in the NOC-NEM window to see
which events preceded an error condition.