TC Communications TC8518 T1, Руководство пользователя

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Chapter 3 Management through the Web Optical Options
3-28 TC8518 Rev 2.2 User Manual
Figure 3-25 Web Application - T1/E1 Options: Diagnostics
3.10 Optical Options
3.10.1 Optical Options: Optical Status
The TC8518's Optical Status displays the current status of alarms in regards to
optics. "Current" and "Since Last Cleared" indicate to the Network Administrator if
there has been an error since the last time the TC8518 was cleared of alarms.
Current: Displays the current status of optical alarms.
Since Last Cleared: Displays if an optical alarm has been triggered since the last
time the "Clear Alarm" button was clicked.
For example, two TC8518s are connected properly and the Optical Status page
appears similar to Figure 3-26,
Web Application - Optical Options: Status . Then
suppose Optical A suffers a Loss of Signal (Opt A LOS), but then is corrected after
five minutes.
Current will have displayed red only during that five minutes and
then return to green. Since Last Cleared will display "Error" and remain doing so.
This allows the network administrator to know if an error had occurred on the
optical ports recently.