Chapter 8: Synchronization Configuring the Sync Sourcephn-3963_008v000Page 8-42 In the Sync Interface field, select the interface you want to define as a synchronization source. You canselect from the following interface types:o Ethernet interfaceso Radio interfaceNoteIn order to select an Ethernet interface, you must first specify the media type for this interface. SeeConfiguring Ethernet Interfaces.3 In the Sync Interface Quality field, select the quality level applied to the selected synchronization source.This enables the system to select the source with the highest quality as the current synchronizationsource.o If the Sync Interface Quality is set to Automatic, the quality is determined by the received SSMs. If novalid SSM messages are received or in case of interface failure (such as LOS, LOC, LOF), the qualitybecomes Failure. SSM must be enabled on the remote interface in order for the interface to receiveSSM messages. For instructions how to enable SSM, see Configuring the Outgoing Clock and SSMMessages.o If the Sync Interface Quality is set to a fixed value, then the quality status becomes Failure uponinterface failure (such as LOS, LOC, LOF).4 In the Sync Interface Priority field, select the priority of this synchronization source relative to othersynchronization sources configured in the unit (1-16). You cannot assign the same priority to more thanone synchronization source. Once a priority value has been assigned, it no longer appears in the SyncInterface Priority dropdown list.5 Click Apply, then Close.Editing a Sync SourceTo edit a synchronization source:1 In the Sync Source page (Figure 182), click Edit. The Sync Source – Edit page opens.
