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D Noise Suppression Devices
Ferrite noise suppressors are installed in the printer to reduce radio frequency
interference (RFI) to and from electronic equipment located near the printer.
Two kinds of ferrite noise suppressors are used:
1. Shielding Bead (P/N 141445-001) is a cylindrical core, through and
around which the control panel cable assembly is wound. Two are
required.
2. Ferrite Clamp (P/N 202049-001) is a noise suppression core in a hinged
plastic case and attached to the wall of the card cage with adhesive. The
parallel I/O cable assembly passes through this core.
Figure 57 shows how these devices are installed.
IMPORTANT
Duplicate the number of turns around the shielding beads when
installing or replacing the control panel cable. See Figure 57.
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