Chapter 4. Status Menu
4-2 ESU 120e User Manual 61200420L1-1
Menu flow is normally depicted from left to right. Arrows on the
lower right of the screen indicate the direction of scrolling to use to
view additional menu items. At every level of the menu, pressing
Cancel returns the system to the previous menu level. Pressing
Cancel repeatedly returns the system to the Main Menu.
Network Interface Performance Reports (NI PERF RPTS)
The Network Interface Performance Reports display the user’s
copy of the performance data. The ESU 120e maintains this perfor-
mance data on the network based on G.821. The data displayed is
data accumulated over the last 15 minutes and over the last 24
hours.
Use the scroll keys to access the complete display of the following
report fields:
Figure 4-2. Network Interface Performance Report
%AS Percentage of available seconds
BES Between 2 and 832 errors/sec
%EF Percentage of error free seconds
DM Number of minutes with bit error rate of 1 x
10
-6
or greater
ES Number of errored seconds (1 or more errors/
second)
SES Number of severely errored seconds (more
than 832 CRC errors/sec). Approximate
equivalent to a bit error rate of 1 x 10
-3
UAS Number of unavailable seconds (10 or more
consecutive seconds)
15 Minutes
24 Hours
Data Values
