User guide

Terminal Interface 4-23
4
Network Thresholds
This menu allows the user to enable/disable the automatic FALLBACK
feature, and set the various Network Alarm Thresholds that will cause the
T1 lines to automatically be taken out of service.
Figure 4-12 is an example of the NETWORK ALARM THRESHOLDS
conÞguration screen.
Figure 4-12 Network Thresholds Configuration
Through the CONSECUTIVE THRESHOLDS section of this menu, the user
disables or enables the fallback condition relating to the number of
consecutive seconds (from 1 to 100) in which a CRC, SES or UAS alarm
threshold is exceeded. To Enable or Disable the FALLBACK feature,
highlight the appropriate item, and use the space bar to select your choice.
Second Error Restoral
Interval
This item selects the time that a failed T1 line must run without errors in
order to be restored automatically. If a network alarm is exceeded for a
second time within the selected window (15 minutes or 24 hours), the line
will not be restored.
To change the present Restoral Interval, use the up and down arrow keys to
highlight the item, and use the Space Bar to toggle between the following
selections until the desired choice appears: Immediate, 5,10,15, or 30
seconds, and 1, 5, 10, and 15 minutes. (Default: 15 minutes)
Table 4-7 NETWORK CONFIGURATION MENU Options (Continued)
Parameter Description/Action