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Ferrite Bead Installation
Some models are shipped with ferrite beads. Follow the instructions
below for proper installation.
• The input and output signals must be connected by using twisted,
shielded wire pairs.
• The shield or its drain wire (FIGURE 2-6) must be connected to the
grounding terminal on the power supply plate.
• Each unit is supplied with Thora-Electronik #16-28-9 or equivalent
ferrite (P/N 10017468).
• The shield must also be connected to ground at the receiving
equipment.
• The RS 485 communications lines to the relay module must be
wired in a similar manner. See Appendix B for more information on
the relay module.
CAUTION
Bundle low voltage wiring together (lower than 30 volts),
separate from high voltage wiring (higher than 30 volts).
Figure 2-6. Ferrite Bead Installation
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