Chapter 3 Management through the Web
Home Page
TC8518 Rev 2.2 User Manual
3-5
Figure 3-3 Web Application - Home: Unit Alarm
3.3.3
Home: Unit Alarm: Alarm Trigger Criteria
The Unit Alarm: Alarm Trigger Criteria page categorizes all possible alarm triggers
for T1/E1, Optical, Loopback, and Physical Status alarms. The desired alarm
triggers can be configured on this page. This page is accessible from the Unit Alarm
page. At the Alarm Trigger Criteria section, click on "Modify" to reach this page.
Please refer to Figure 3-3,
Web Application - Home: Unit Alarm
T1/E1 Triggers
AIS
Alarm Indication Signal
LOS
Loss Of T1/E1 Signal
BPV
Bipolar Violation
TOCD
Transmit Open-Circuit Detect. TOCD indicates that
the LIU has detected an open circuit on the T1/E1
channel's transmit pair. This could be due to bad
connections at either end of the cable or a cable
break. It could also be due to a faulty receiver at the
far end.
