Omron CQM1H-SCB41 User Manual

Page of 421
6
Conformance to EC Directives
xvi
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