23Connecting the LSVM1DC650 power module1. Unpack the DC power cord, identify the plug for connecting to the power module, orient the plugwith the power receptacle on the power module, and insert the plug into the receptacle (see Figure31).The receptacle is foolproof. If you cannot insert the plug into the receptacle, re-orient the plugrather than use excessive force to push it in.2. Use a cable tie to secure the power cord to the handle of the power module, as shown in Figure30.3. Connect the other end of the power cord to the DC power source.Figure 31 Connecting the LSVM1DC650 power moduleInstalling/Removing an interface cardCAUTION:When you install or remove an interface card, follow these guidelines:• Never touch the components on the interface card surface.• Do not use excessive force.The S7502E-XS switch provides two interface card slots. The S7504E-XS switch provides four interfacecard slots. For the available interface cards, see "Appendix B FRUs and compatibility matrixes."The interface card installation and removal procedures are the same. This section uses theLSQM1QGS8A0 interface card as an example.Installing an interface card1. Wear an ESD wrist strap and make sure the wrist strap makes good skin contact and is reliablygrounded.2. (Optional.) If the target interface card slot has a filler panel installed, remove the filler panel. Figure32 uses the S7502E-XS switch as an example.To remove a filler panel from an interface card slot:a. Use your thumb and forefinger to hold the filler panel through the two holes.b. Push right the metal tab in the left hole and pull out the filler panel along the guide rails.