Dialogic DSI SPCI Network Interface Boards manual Parameter Description Event ID

6 Message Reference

Description:

This message is issued by the board to indicate events within the on-board clocking circuitry.

Parameter Description:

Event ID

This field specifies the event that caused the indication to be generated:

event_id	Description
1	PLL entered hold-over mode
	Issued by boards acting as primary or secondary clock master when its
	nominated clock reference becomes unavailable. The phase-locked-loop
	starts operating in “hold-over” mode, continuing to generate an on-board
	clock at the same frequency as the last valid reference signal.
2	PLL left hold-over mode
	The nominated clock reference for a primary or secondary master board has
	become available and the is now being used as the input to the board’s clock
	circuitry.
3	CT bus clock set A fail
	The CT bus clock set A signals are not being correctly driven.
4	CT bus clock set A recover
	The CT bus clock set A signals are being driven.
5	CT bus clock set B fail
	The CT bus clock set B signals are not being correctly driven.
6	CT bus clock set B recover
	The CT bus clock set B signals are being driven.
7	Master clock changeover
	The board issuing this indication has automatically changed from secondary
	master to primary master role for the clock set it was configured to drive.

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