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The Clocks section below shows three separate clock status bits, all prefixed with $(device).
| PV | Description |
|---|---|
:STA:CLOCK | This PV reports the status of the ADC input clock. If this clock does not report as "Locked" then practically no other signals can be trusted and there is something seriously wrong. The simplest possibility is that either the external PLL or the ADC (on the AMC-500 card) is incorrectly configured |
:STA:VCO | If the external PLL is correctly programmed this should report as "Locked", unless clocking has been configured for "Passthrough" mode. |
:STA:VCXO | This will report "Locked" if the system has successfully locked onto the external RF reference. |
The final Turn Clock section shows one status PV:
| PV | Description |
|---|---|
:DLY:TURN:STATUS | This shows the turn clock synchronisation status as described under Clock Fine Delay Control. |