Chapter 4. Status Menu
4-4
TSU LT User Manual
61202060L2-1
Alarms and Errors
The following are alarms and errors which can be seen.
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 in SF or ESF
Bipolar Violations
BPV's in SF or ESF
Bit Errors
Frame Bits received incorrectly at NI.
PLL Alarm
Unable to sync up to selected clock
Содержание 1202060L2-1
Страница 1: ...TSU LT User Manual Part Number 1202060L2 1 Document Number 1202060L2 1 February 1999...
Страница 16: ...List of Tables xvi TSU LT User Manual 61202060L2 1...
Страница 28: ...Chapter 1 Introduction 1 12 TSU LT User Manual 1202060L2 1...
Страница 44: ...Chapter 4 Status Menu 4 6 TSU LT User Manual 61202060L2 1...
Страница 56: ...Chapter 5 Configuration Menu 5 12 TSU LT User Manual 61202060L2 1...
Страница 60: ...Chapter 6 Utility Menu 6 4 TSU LT User Manual 61202060L2 1...
Страница 72: ...Chapter 8 Example Operations 8 6 TSU LT User Manual 61202060L2 1...
Страница 76: ...Appendix B DTE Data Rate Chart B 2 TSU LT User Manual 61202060L2 1...
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