Installing the Hardware 7You must provide your own cables to connect to the power source. Cables mustbe sized for 11.5 A service at no more than -48VDC input (per NEC in theUnited States; internationally, follow local safety codes.).Connect the grounding cable to the FG terminal first, then connect the oppositeend to the appropriate grounding point at your site to ensure an adequate chassisground.Install the SFP and XFP OpticsThe S50N and S50V each have four receptacles at the right end of theirfaceplates that accommodate 10/100/1000 SFP optical transceivers.A 10GbE module contains two ports. 10GbE modules should only be inserted orremoved when the switch is powered down. Refer to the Installing S50N and S50VSystems guide for information related to optional module installation.SFP and XFP transceivers can be inserted or removed while the switch isrunning.CAUTION: Before connecting a transceiver to a source, check the receivepower of the transceiver with an optical power meter. Generally, Dell Force10specified optics are not to be subjected to receive power higher than thatstipulated by the optic specification. If the optic is exposed to optical power inexcess of the specification, there is a high likelihood that it will be damaged.CAUTION: Electrostatic discharge (ESD) damage can occur if componentsare mishandled. Always wear an ESD-preventive wrist or heel ground strapwhen handling the chassis and its components.WARNING: Follow all warning labels when working with optical fibers.Always wear eye protection when working with optical fibers. Never lookdirectly into the end of a terminated or unterminated fiber or connector as itmay cause eye damage.Step Task1 Position the SFP or XFP so it is in the upright position. (The SFP optichas a key that prevents it from being inserted incorrectly.).2 Insert the optic into the port until it gently snaps into place.