powerSupplyPackage — ETSI published formal attachments
This object class is specific to synchronisation protection. The creation/deletion of a syncProtectionGroup is performed by the NE depending upon its synchronisation protection capabilities (intrinsic knowledge of the NE). The operationalState attribute reflects only the switch capabilities of the protection scheme(i.e. it becomes disabled when the NE has detected that it can no longer perform switch operations (automatic or manual)). The manual switch operation can be performed among timing sources with the same or different priority and, when the SSM algorithm is active, with the same quality. A manual switch request between two timing sources with different quality levels and SSM algorithm is active will be rejected. The forced switch operation can be performed among any timing sources, independently of the priority and quality levels. All protectionUnits work in the protecting mode. The protectionSwitchReporting notification is sent by the synchronisation protection group according to the following rules. There are several cases: A switch from one protecting unit to another has occurred. In this case the new values of the protection status attributes of the protecting units which have been switched to and from shall be reported in the notification by means of the toProtectionStatus and fromProtectionStatus parameters respectively. A protecting unit has a failure or a clearing of a failure without causing a switch. In this case the fromProtectionStatus parameter is not used and the toProtectionStatus parameter refers to the protection status attribute value of the protecting unit which has a failure or a clearing of a failure. The exception is when the protecting unit is already forced or locked out, in which case no notification is sent. A protecting unit has been locked out or released from lockout without causing a switch. In this case the fromProtectionStatus parameter is not used and the toProtectionStatus parameter refers to the protection status attribute value of the protecting unit which has been locked out or released from lockout. A protecting unit has been manually switch or released from manual switch without causing a switch. In this case the fromProtectionStatus parameter is not used and the toProtectionStatus parameter refers to the protection status attribute value of the protecting unit which has been manually switch or released from manual switch. A protecting unit has been forced switch or released from forced switch without causing a switch. In this case the fromProtectionStatus parameter is not used and the toProtectionStatus parameter refers to the protection status attribute value of the protecting unit which has been forced switch or released from forced switch. While in the lockout or forced switch state, no notifications are sent