Ground The Supervisor And Nodes; Connect The Nodes To Sensors; Making Cable Gland Connections; Figure 17: Mounting Onto A Metal Plate / Inside An Enclosure - Geokon GeoNet 8900 Series Instruction Manual

14 | NETWORK INSTALLATION | GEOKON
External enclosure
blocks signal
Metal plate both blocks
and reflects signal
FIGURE 17: Mounting onto a Metal Plate and/or Inside an Enclosure
Large structures, such as walls, buildings, hills, etc. can block and/or reflect RF
signals. Tips include:
■
Mount antennas above metallic structures.
■
Keep in mind that nodes communicate with each other, not just with the
supervisor.
■
A high Received Signal Strength Indicator (RSSI) level does not guarantee
trouble-free communication.
■
Mount devices such that their antennas are on top, pointing upward.

3.4.2 GROUND THE SUPERVISOR AND NODES

Install a grounding rod and cable, or other suitable ground, at a location near
each device. Cellular Gateway Supervisors and Multi-Channel Nodes come
equipped with a copper grounding lug to which you can connect the grounding
cable. Ground non-cellular Supervisors and Nodes by connecting the grounding
cable to the mounting bracket.
Don't reinstall the Node covers until after you have connected all the necessary
sensor cables.

3.5 CONNECT THE NODES TO SENSORS

3.5.1 MAKING CABLE GLAND CONNECTIONS

To connect a device using a cable gland connection:
1. Loosen the nut on the cable fitting and remove the white plastic dowel.
2. Slide the transducer cable through the cable gland nut and fitting.
3. Insert the lead wires into the terminal block as shown in Figure 18 and
Table 6. Press down on the orange tab, insert the bare end of the wire into
the terminal block, and then release the tab.
17: