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The 4100-5124 Class A Adapter Card mounts to the TPS using four hex standoffs.  
The standoffs have threaded male and female ends.   
 
Follow these steps to mount the Class A Adapter Card. 
 
1.  Remove the two Torx screws shown in Figure 1.  The holes in which the screws 

were installed are used for the Class A board standoffs. 

 
2.  Insert the threaded male end of the hex standoff in one of the standoff holes on 

the TPS.  Fully screw the standoff into the threaded hole.  Repeat this step for 
the other three holes. 

 

 

Figure 1.  Location of Standoff Holes on TrueAlert Power Supply 

 
3.  Place the Class A Adapter Card on the standoffs.  Align the holes on the card 

with the holes on the top of the standoffs.  Secure the card to the standoffs with 
four screws. 

 
 
 
 
 
 
 
 
 
 
 

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Mounting to the TPS 

Procedure 

Remove 
Screw 

Remove
Screw 

Screw Threaded 
Male end of 
Standoff into 
these Holes  

Screw  
Threaded 
Male end  
of Standoff
into these 
Holes  

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