Installation
2-16
Figure 2-19 RTU on Metal Chassis – Cable Anchor Point 2
Procedure 2-7 How to Connect the RTU to Main Power Source (Units with Frames and Metal
Chassis)
1) Using a screwdriver, open the power junction box cover (save the screws) and unscrew the
power terminals screws inside the power junction box.
2) Thread the user's main power cable through the two supplied clamps.
3) Attach the wires of the user cable, according to the labels (~/0 for AC and +/- for DC.) For
the No I/O Frame, connect the ground cable to the lower wire terminals (third pair). See
Figure 2-20 and Figure 2-21.
Power Supply
Cable Inlet
User Power Cable
Wire
Terminals
Anchor Point 1
Junction Box
Ground Cables
Cable to Power Supply
0 ~
0
~
Figure 2-20 RTU Power and Ground Connections - No I/O Frame Installation
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