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20.5 Filter Board Options 
Choose the filter type by installing and removing the jumpers on the filter board as 
shown in the table below.  See Section 20.2 for the location of the jumpers on the Filter 
Board. 
CHANNEL A  CHANNEL B 
FILTER TYPE 
INSTALL REMOVE INSTALL REMOVE 
High Pass (HP) 
Filter ONLY 
W27,76 W26,65 W20,59  W21,58 
Low Pass (LP) 
Filter ONLY 
W26,65 
 
W27,76 W21,58 W20,59  
Band Pass (BP) 
Filter 
W27,65 W26,76 W20,58 W21,59  
High Pass Filter before 
Integrator/Gain Stage and 
Low Pass Filter after the 
Integrator/Gain Stage 
W65,78 
W83,84 
W26,27 
W37,76 
W79 
W58,60 
W85,86 
W20,21 
W41,59 
W61 
*NO 
 Filters 
 
W26,27 
W37,65,76 
W78,79 
W83,84 
 
W20,21 
W41,58,59 
W60,61 
W85,86 
 
* Denotes standard configuration.