Chapter 3. Configuration
61200659L1-1
MX2800 STS-1 User Manual
3-19
STS-1 Alarms
Alarm
Description
LOS
(Loss of Signal)
The unit has lost the network receive signal.
LOF
(Loss of Framing)
The unit detects a framing loss from the
network.
LOP
(Loss of Pointer)
The unit is unable to detect a valid pointer in the
receive signal.
LOMF
(Loss of Multiframe)
The unit detects loss of H4 multiframe from the
network.
AIS-L
(Line Alarm Indication Signal)
The unit is receiving a line alarm indication
signal. The Section Terminating Equipment
generates AIS-L after detecting LOS or LOF.
AIS-P
(Path Alarm Indication Signal)
The unit is receiving a path alarm indication
signal. AIS-P is defined as all ones in bytes H1,
H2, and H3 as well as all ones in the entire STS
synchronous payload envelope.
RFI-L
(Line Remote Failure Indication)
The unit is receiving a line remote failure
indication. RFI-L is declared when the incoming
line remote defect indication (RDI-L, “110”
pattern in bits 6, 7, and 8 of the K2 line overhead
byte) lasts for 2.5 +/- 0.5 seconds.
RFI-P
(Path Remote Failure Indication)
The unit is receiving a path remote failure
indication. RFI-P is declared when the incoming
path remote defect indication (RDI-P, “1” in bit 5
of the G1 path overhead byte for contiguous
frames) lasts for 2.5 +/- 0.5 seconds.
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Страница 90: ...Chapter 3 Configuration 3 44 MX2800 STS 1 User Manual 61200659L1 1...
Страница 134: ...Chapter 6 Diagnostics 6 12 MX2800 STS 1 User Manual 61200659L1 1...
Страница 140: ...Chapter 7 Circuit and Network Redundancy 7 6 MX2800 STS 1 User Manual 61200659L1 1...
Страница 146: ...Chapter 8 Power Loss Recovery 8 6 MX2800 STS 1 User Manual 61200659L1 1...
Страница 160: ...Chapter 9 Transaction Language 1 TL1 9 14 MX2800 STS 1 User Manual 61200659L1 1...
Страница 164: ...Appendix A Pinouts A 4 MX2800 STS 1 User Manual 61200659L1 1...
Страница 168: ...Appendix B Specifications Summary B 4 MX2800 STS 1 User Manual 61200659L1 1...
Страница 174: ...Appendix C Acronyms Abbreviations C 6 MX2800 STS 1 User Manual 61200659L1 1...