ADTRAN 1200214L1 - Manual (Page 103)

61200214L1-1 IQ Probe User Manual 79
Chapter 10. Statistics
Figure 10-5
DCE Port Statistics (View by Day)
Port UA Time
Time in seconds the DCE port is unavailable for data delivery.
This means that the data link is down or in test, or that the frame
relay signaling state is down.
Signal Down Time
Time in seconds the signaling state has been down.
Signal Error
Number of signal frames received with PVC signaling protocol
violations.
Signal Timeouts
Number of T391 timeouts that have occurred.
Signal State Change
Number of changes in the signaling protocol state.