The implementation of OSN1500 clock synchronization mainly includes the processes of clock source selection, clock signal extraction, and transmission in the SDH network.
This content introduces all the alarms related to OSN1500 clock.
All the alarms related to the clock are shown in Table 1.
|
Alarm abbreviation |
Full name of the alarm |
|---|---|
|
CLK_NO_TRACE_MODE |
Clock enters non-trace mode |
|
EXT_SYNC_LOS |
Loss of external clock source |
|
FSELECT_STG |
Forced selection of clock board alarm |
| LTI | Synchronization source lost |
|
R_LOC |
Receive Line Side Clock Loss |
|
S1_SYN_CHANGE |
Clock source inverted in S1 byte mode |
|
SYNC_F_M_SWITCH |
Manual, forced clock source flip |
|
SYNC_LOCKOFF |
Clock source locked |
|
OOL |
Phase Locked Loop Loss Alarm |
|
SYN_BAD |
Synchronization Source Degradation Alarm |
|
SYNC_C_LOS |
Synchronization Source Level Loss Alarm |
The technical information in this chapter and the related SDH equipment troubleshooting process are provided by Shenzhen Optical Transmission Network Technology Co. Huawei SDH optical transmission equipment, SDH transmission equipment sales phone: 13430988088 Welcome to telephone consultation!


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