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signal ground).
• Wire the RS-485 bus as a daisy chain from device to
device, without any stubs. Use a 150 ohm termina-
tion resistor at the end of the bus between the Energy
Meter's + and
terminals (not included, or use Re-
-
tail Solutions MODBUS termination block
P/N 535-2711).
• Shield is not internally connected to Earth Ground.
• Connect Shield to Earth Ground somewhere on the
RS-485 bus.
• When tightening terminals, ensure that the correct
torque is applied: 0.37-0.44 ft·lb (0.5-0.6 N·m).
Figure 6-9 - Energy Meter Wiring
14 • Energy Meter
026-1726 Rev 0 22-MAR-2011
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