Figure 4.8 Ac Noise Filter (Recommended) - Fujitsu MAS3367FC Product/Maintenance Manual

Installation Requirements
(5) Noise filter
To eliminate AC line noise, a noise filter should be installed at the AC input terminal on the IDD
power supply unit. The specification of this noise filter is as follows:
Attenuation: 40 dB or more at 10 MHz
Circuit construction: T-configuration as shown in Figure 4.8 is recommended.
4-8
Figure 4.8 AC noise filter (recommended)
C141-E198