Status
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Description
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INIT_STATE
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The timing reference has not been provisioned. For an NE reference, this status appears before the first provisioning messages when the TCC2 is booting. Timing is provisioned to the internal clock of the node.
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HOLDOVER_STATE
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The clock was locked onto a valid timing reference for more than 140 seconds when a failure occurred. Holdover state timing is a computation based on timing during Normal State combined with the node's internal clock. The node holds onto this frequency until the valid reference is restored. This status appears for NE references only.
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FREERUN_STATE
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The node is running off its internal clock without any modification except the calibrated value to bring timing to 0 PPM. Freerun state can occur when a Force switch to the Internal clock is initiated, all references fail without the 140 seconds of holdover data, or only Internal timing references are defined. This status appears for NE references only.
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NO_SYNC_STATE
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A synchronization timing reference is not defined. BITS-1 Out or BITS-2 Out default to this status until an OC-N card is defined as its reference on the Provisioning > Timing tab. This status appears for external references only.
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NE_SYNCH_STATE
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BITS-1 Out and/or BITS-2 Out use the same timing source as the NE. This status appears when NE Reference is selected for the BITS-1 Out and/or BITS-2 Out Reference List on the Provisioning > Timing tab.
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NORMAL_STATE
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The timing reference is locked onto one of its provisioned references. The reference cannot be Internal or No Sync State.
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FAST_START_STATE
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The node has switched references, but the reference is too far away to reach Normal State within an acceptable amount of time. Fast Start is a fast acquisition mode to allow the node to quickly acquire the reference. After the node acquires the reference, it progresses to the Normal State.
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FAST_START_FAILED_STATE
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A timing reference is too far away to reach during Normal State. The Fast Start State could not acquire sufficient timing information within the allotted amount of time.
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