T1 ESF CSU ACE User Manual | Chapter 3. Operation |
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2)NI ERR/ALM, Submenu of 1)STATUS
The NI ERR/ALM menu is used for viewing currently active/inactive errors and alarms on the network interface.
Figure 3-12. First Current NI Errors/Alarms Screen
The up and down scroll keys are used to access the complete display of the errors/alarms that are currently active. The alarms and errors which can be seen are shown below:
Loss of Signal | No pulses received at NI |
AIS Alarm | Unframed |
Out of Frame | No framing pattern sync at NI |
Yellow Alarm | Receiving yellow alarm pattern from NI |
Red Alarm | LOS (loss of signal)/out of frame (OOF) causing red alarm at NI |
Code Violations | Bipolar violations (BPVs), frame bit errors, and cyclic redundancy check |
| (CRC) errors in ESF or BPVs and frame bit errors in SF were received at |
| NI |
Bipolar Violations | BPVs in SF or ESF at NI |
Frame Bit Errors | Frame bits received incorrectly at NI |
3)NI HISTORY, Submenu of 1)STATUS
The NI History menu is used for viewing the history of errors and alarms on the network interface. If an alarm has occurred since the last Clear History selection, the menu will be active. If the condition hasn’t occurred, the menu will be inactive. The Clear History screen is shown in Figure
Figure 3-13. Clear History Screen
The conditions reported are the same as those in the NI ERR/ALM submenu but provide historical data on Alarms/Errors instead of current data on Alarm/Errors.
4)TI ERR/ALM, Submenu of 1)STATUS
The T1 ERR/ALM screens are the same as the NI ERR/ALM screens except that they correspond to the terminal interface.
| © 2004 ADTRAN, Inc | 41 |