700- LT1-SYS-IG Rev 2 22 Oct 2018
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2.7
TELEMETRY
2.7.1
LT1-CELL SYSTEMS
1)
Uncoil sufficient cable for the dual GPS/cellular
antenna to reach from the platform to the
connectors on the LT1. Place the dual antenna
on the platform and secure in place with the split
nut.
2)
Attach the GPS and Cell cables to the
appropriate jack on the LT1.
3)
Remove the terminal blocks from the LT1 (for
ease of making power and sensors connections)
and mount the LT1 on the left hand side of the
DIN rail.
Figure 2-4
2.7.2
LT1-GOES SYSTEMS
1)
Mount the satellite and GPS antennas in their desired locations. The GPS antenna can
be mounted on the enclosure’s antenna platform if its design permits.
2)
Attach the satellite antenna and GPS antenna cables to their respective jack on the LT1.
3)
Remove the terminal blocks from the LT1 (for ease of making power and sensors
connections), and mount the LT1 on the left hand side of the DIN rail.
2.8
CONNECTING SENSORS
Sensors are connected via the 8 pin data terminal block (refer to Figure 2-5 for wiring
guidance). The LT1 can accommodate one NMEA device, two SDI-12 sensors, and a rain
gauge. If two SDI-12 sensors are being connected, they must have their wires spliced and
use the same pins designated for SDI-12 sensors. Additionally, if more than two devices
are being connected, a ground terminal will have to be shared.
Once sensors are connected to the 8 pin terminal block it can be inserted into the LT1.
Dual Antenna
Solar panel
cable
Sensor cable
