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14.9 Connection of GNSS Receiver
When connecting the GNSS Receiver (GNS-300) with the Quartz Master Clock, connect the cables
as illustrated below.
GNSS Receiver (GNS-300)
DC5V Rx+ Rx- GND 1PPS+ 1PPS-
FG
WARNING
When connecting the GNSS Receiver with the Quartz Master Clock,
connect the shield of the shielded cable to “FG”.
Installation of GNSS Receiver
When the Quartz Master Clock is used with the optional GNSS Receiver (GNS-300), it is
necessary to install it before Clock is used.
Install the GNSS Receiver at a place where the whole sky can be seen, and fix it securely lest
it should drop.
If the sky view from the installation place is obstructed by buildings and other objects, the
radio wave reception from the GNSS satellite will be disturbed.
Do not install the Receiver at a place where it is exposed to vibration or strong
electromagnetic waves.
Extension of the Cable Connecting GNSS Receiver
If the cables connecting GNS-300 with the Quartz Master Clock need to be extended, use a
shielded 6-core cable.
To extend the cable up to 200m or 300m, it is necessary to use 1.25sq or 2.0sq cable,
respectively.
For GNS-300
Core color: Red
--- 5VDC
Core color: Black --- GND
Core color: Brown --- Rx
＋
Core color: Blue --- Rx
－
Core color: Green --- 1PPS
＋
Core color: White --- 1PPS
－
Terminal block for
connecting GNSS Receiver
For the engineering outfit
