Installing the Switch | 174Installing the SwitchTo install S50V or S50N systems, Dell Force10 recommends that you complete the installationprocedures in the order presented in this chapter:• Inserting Optional Modules (10-Gigabit or Stacking)• Installing the System on a Tabletop on page 18• Installing the System in a Rack or Cabinet on page 19• Stacking on page 23• Supplying Power on page 27WARNING: As with all electrical devices of this type, take all the necessary safety precautions to prevent injury wheninstalling this system. Electrostatic discharge (ESD) damage can occur if components are mishandled. Always wear anESD-preventive wrist or heel ground strap when handling the switch and its components. See other relevant cautions inthe Preface.Inserting Optional Modules (10-Gigabit or Stacking)The S50V (catalog number S50-01-GE-48T-V) and S50N (catalog number S50-01-GE-48T-AC for AC-powered version of S50N; S50-01-GE-48T-DC for S50N-DC) have two expansion slots in the back ofthe chassis, for which there are four modules available:The system supports any of the modules inserted in any combination of slots (although connecting allfour ports of two 12G stacking modules is not supported, nor is connecting a 12G stack port in one switchto a 24G stack port in another switch). The ports are numbered 49 through 52, from left to right as youface the front of the chassis. So, for clarity in the use of the CLI in port assignment, if you are only usingone XFP or CX4 module, insert it in the left-most expansion slot.NOTE: The 10G modules cannot be used for stacking. See Connecting Stack Ports (optional) onpage 25.Module Description Catalog Number2-port 10GbE XFP (optical connection) S50-01-10GE-2P2-port 10GbE CX4 (copper connection) S50-01-10GE-2C2-port 12GbE Stacking S50-01-12G-2S1-port 24GbE Stacking S50-01-24G-1S