Trouble Scan: Detecting And Displaying Atm Channels Where Alarms Are Present - Wavetek ANT-20 Operating Manual

ANT-20/ANT-20E
To stop the analysis
⇒ Click the "Cancel" button.
– or –
The analysis stops automatically when the analysis is complete ("Unchecked" = 0%).
When you perform an "AAL Type Distribution" analysis, an "AAL Type" analysis is automatically
also performed.
• If a large number of channels are listed in the results window, AAL analysis may take a very
long time. You can interrupt the analysis at any time using the "Cancel" button.
• If the analysis is aborted, the distribution of the channels analyzed so far will be displayed.
Pie chart
Graphic display of distribution according to AAL types. The yellow segment indicates the as yet
unchecked channels. It decreases in size as the analysis progresses.
Table
Color
blue
white
green
red
yellow
Tabelle E-5
"Cancel" button
Cancels the analysis as long as a yellow segment is visible or "Unchecked" > 0 %. The analysis
ends when the yellow segment disappears or "Unchecked" = 0 % and the "Cancel" button
changes to "OK".
3.4.4

Trouble Scan: Detecting and displaying ATM Channels where alarms are present

"Scan - Trouble" searches for channels that exhibit an alarm state. The instrument detects every
alarm indication cell and enters the corresponding channel into the results list. There are two
results windows corresponding to the error management hierarchy:
• F4 window: OAM Flow 4 (VP layer)
• F5 window: OAM Flow 5 (VC layer)
The type of record and the scan type are set and the scan is controlled from the "Scan" menu.
Application Guide
Load Number of
(example) channels
19.00 % 38
17.00 % 34
22.00 % 44
22.00 % 44
20.00 % 40
Column meanings (Example: Analysis of 200 channels)
Broadband Analyzer/Generator
Meaning
Channels cannot be analyzed or cannot be assigned to an
AAL type. Cause: Unknown AAL type or channel currently
inactive.
Channel with AAL type 1
Channel with AAL type 3/4
Channel with AAL type 5
Channels not yet checked for AAL type.
A-27