Reference Lists
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Defines the node's timing references (Ref 1, Ref 2, Ref 3). The node uses Reference 1 unless a failure occurs to that reference or its quality degrades, in which case the node uses Reference 2. If Reference 2 fails, the node uses Reference 3, which is typically set to Internal Clock (the Stratum 3 clock provided on the TCC2/TCC2P card). The options that appear depend on the Timing Mode setting.
If the Timing Mode is set to External, options are BITS-1, BITS-2, and Internal
Clock.
If the Timing Mode is set to Line, options are the node's working STM-N cards
(non-DWDM nodes) or OSC cards (DWDM nodes) and Internal Clock.
If the Timing Mode is set to Mixed, both BITS and STM-N cards are available.
BITS-1 Out/BITS-2 Out: Sets the timing references for equipment connected
to the BITS Out MIC-C/T/P pins. BITS-1 Out and BITS-2 Out are enabled
when BITS-1 and BITS-2 facilities are put in service.
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