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6Conformance to EC Directives
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Recommended Ferrite Cores
The following ferrite core (data line noise filter) is recommended:
0443-164151 by Fair-Rite Products Corp.
Low impedance, 25 MHz: 90 Ω, 100 MHz: 160 Ω
Recommended Mounting Method
Mount the core on one turn of the communications cable, as shown in the follow-
ing illustration.
Mount the cores as closely to the end of the communications cable as possible,
as shown in the following illustration.
Serial
Commu-
nications
Board