3300/25 Dual Accelerometer Input Monitor Operation Manual 
 
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19. Appendix B–Filter Board Options 
PWA 79562-01 and PWA 105521-01 
19.1 Identify Filter Board 
The configuration of the low pass filter is depends upon which filter board is being used. 
The filter board can be identified by looking at the PWA (Printed Wiring Assembly) 
number that is silkscreened on the component side of the board.  
 
The three possibilities are: 
 
PWA 79562-01  Refer to Appendix B 
 
PWA 105521-01  Refer to Appendix B 
 
PWA 148921-01  Refer to Appendix C