TSU LT User Manual
Chapter 4 Status Menu
61203060L1-1A
© 2003 ADTRAN, Inc.
37
ERR/ALM HIST MENU
Use this branch for viewing a history of errors and alarms. If an alarm has occurred since the last
C
LEAR
H
ISTORY
selection, the menu condition is active; otherwise it is inactive (see Figure 4-4). Table 4-2
provides a complete list of the errors and alarms.
Figure 4-4. Clear History Screen
Table 4-2. Alarms and Errors (Current and Historical)
Errors and Alarms
Meaning
Loss of Signal
No pulses received at NI
AIS Alarm
Unframed All-Ones received at NI
Out of Frame
No framing pattern sync at NI
Yellow Alarm
Receiving yellow alarm pattern from NI
Red Alarm
Loss of signal/out of frame (LOS/OOF) causing red alarm at NI
Code Violations
Cyclic redundancy check (CRC) errors in ESF, or bipolar violations (BPVs) in Superframe
Format (SF) were received at NI
Bipolar Violations
BPVs (the presence of two consecutive bits of the same polarity) in SF or ESF
Frame Bit Errors
Frame Bits received incorrectly at NI
PLL Alarm
Unable to sync up to selected clock
Содержание TSU LT
Страница 1: ...TSU LT USER MANUAL Part Number 1203060L1 61203060L1 1A April 2003...
Страница 12: ...Customer Service Product Support Information and Training TSU LT User Manual 12 2003 ADTRAN Inc 61203060L1 1A...
Страница 16: ...List of Figures TSU LT User Manual 16 2003 ADTRAN Inc 61203060L1 1A...
Страница 18: ...List of Tables TSU LT User Manual 18 2003 ADTRAN Inc 61203060L1 1A...
Страница 26: ...Chapter 2 Inspection and Installation TSU LT User Manual 26 2003 ADTRAN Inc 61203060L1 1A...
Страница 34: ...Chapter 3 Operation TSU LT User Manual 34 2003 ADTRAN Inc 61203060L1 1A...
Страница 38: ...Chapter 4 Status Menu TSU LT User Manual 38 2003 ADTRAN Inc 61203060L1 1A...
Страница 58: ...Appendix B DTE Data Rate Chart TSU LT User Manual 58 2003 ADTRAN Inc 61203060L1 1A...
Страница 62: ...Appendix C Pinouts TSU LT User Manual 62 2003 ADTRAN Inc 61203060L1 1A...