Verilink AS2000: The Basics (880-502981-001) Product Manual - Manual (Page 79)

Monitoring and Troubleshooting
Verilink Access System 2000: The Basics 5-13
Bit Error Rate Alarm Second (BERS)
This is a count of each second during which a network BER alarm
condition existed.
Loss of Frame Second (LOFS)
An LOFS is a count of each second in which the application module
was in a LOF state.
Out of Frame Second (OOFS)
An OOFS is a second experiencing one or more OOF events.
Equipment Low-Density Second (DTED)
This is a second during which a low-density state occurs and the
application module stuffs a one into the signal from the equipment
to maintain minimum ones-density on the DS1 network. The
application module also records a DTED whenever it applies a keep-
alive signal to the network.
Equipment Bit Error Rate Alarm Second (DBER)
This is a second during which the incoming bit error rate from the
equipment exceeds the operator-defined threshold.
Equipment Errored Second
This is the same as the ES previously described, except that it is
detected on the incoming signal from the DS1 equipment.
Equipment UAS, ES-L, and OOFS
These are the same as the UAS, ES-L, and OOFS previously
described, except that they are detected on the incoming signal
from the DS1 equipment.
Table 5-5 Alarms and Performance Report Acronyms in Alphabetical Order
Acronym T1 E1 Definition Performance/
Alarm/Event/Flag
Class
AIS • • All Ones Indication Signal Received (Red
Alarm)
Alarm Major
AIS-Receiving • Receiving All Ones Indication Signal (Red
Alarm)
Alarm Major
AIS-Sending • Sending All Ones Indication Signal (Red
Alarm)
Alarm Minor