2-19 
Figure2-20 Removing the power cord from a PSR450-12D power supply 
 
(1) Use a flathead screwdriver to loosen the two screws on the power cord connector 
(2) Pull the power cord connector out 
 
Connecting the power cord 
Connecting the power cord for a PSR250-12A or 
PSR250-12A1 power supply 
The power cord connection procedure is the same for the PSR250-12A and PSR250-12A1 power 
supplies. The following procedure connects the power cord for a PSR250-12A1 power supply. 
To connect the power cord for a PSR250-12A1 power supply: 
1.  Wear an ESD wrist strap. Make sure the strap makes good skin contact and is reliably 
grounded. 
2.  Plug the female connector of the power cord into the power receptacle on the power supply, as 
shown by callout 1 in Figure2-21. 
3.  Use a cable tie to secure the power cord to the handle of the power supply, as shown by callout 
2 and callout 3 in Figure2-21. 
4.  Connect the other end of the power cord to an AC power source or a high-voltage DC power 
source.