Dear friend!
According to the alarms shown in the preceding figure, the most possible cause is that the software version of the UNS4 board does not match that of the cross-connect board, please upgrade the required software to a mapping version.
More:
1. How to check the version matching of SDH/WDM products
2. https://support.huawei.com/hedex/hdx.do?docid=EDOC1100214746&id=EN-US_ALARMREF_0284346114&lang=en
Thanks!