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14.5 Connection of External Synchronization Input
•
By connecting the 30-sec. polarized signal output of an external master clock to the external
synchronization input, the Quartz Master Clock operates in sync with it.
•
Even if the external master clock stops operating, the Quartz Master Clock continues operating on
its own.
•
The Quartz Master Clock will not synchronize with the quick advance signal of the external master
clock but only with a precise 30-sec. polarized signal.
•
If the input signal involves loss/gain of more than 15 seconds from its internal clock, the Quartz
Master Clock will not operate in sync with the external signal.
•
It synchronizes with the external master clock while in the Normal Mode.
•
At the time of shipment from the factory, the Quartz Master Clock has been preadjusted to support
DC 24 V.
14.6 External DC Power Supply Input (DC 24 V)
Connect uninterruptible DC power supply to these terminals.
＋
SYNC IN
－
＋
RS-422
－
For the engineering outfit
DC 24 V,
30-sec. polarized signal
30-sec. polarized signal
(set to support DC 24 V at the time of
shipment)
Note: Check that (+) and (-) terminals are
properly set.
Terminal block
AC220V IN
+
DC24V IN
－
Uninterruptible power
supply
(DC 24 V)
Check that (+) and (-) terminals are
properly set.
Terminal block
Ex.) QC-55X02
For the engineering outfit
