Figure 149: Inrush current to the 2024 head during power up, 1 second window.
13.4.1 Common mode noise rejection
Common mode noise on the 48VDC power line to the sonar head should be minimized. The SIM
Controller board has a common mode choke on the power line to the sonar head. If sonar head
power is not supplied by the SIM Controller board, install a common mode choke on the sonar head
48VDC power line. A suitable common mode choke is JW Miller (Bourns) 8102-RC. This is available
from Digi-Key. See below figure for wiring details.
Figure 150: Power supply choke installation on 48VDC power
Page 157 of 210
Version 5.0 Rev r002
Date 05-08-2014
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