Dell Force10 S55T Installing the S55 System - Page 20

www.dell.com | support.dell.com Step Task (continued) 3 Attach the one-hole lug to the chassis as shown, using the supplied 10-32 screw with captive internal tooth lock washer. The screw should be torqued to 20 in-lbs. 4 Attach the other end of the ground cable to a suitable ground point. The rack installation ears are not a suitable grounding point. Insert optional modules The S55 system has expansion slots, that can be used for stacking modules or for SFP+ devices.The SFP+ module can be inserted in either optional slot; the stacking module can only be inserted in the lower slot (OPT0). The modules are hot-swappable; you can insert or replace modules without powering down the system. CAUTION: Stacking modules can only be inserted into the lower optional module slot. Module Description 2-port 12G stacking module Catalog Number S55-12G-2ST 2-port 10G SFP+ optical module S55-10GE-2S WARNING: Electrostatic discharge (ESD) damage can occur if components are mishandled. Always wear an ESD-preventive wrist or heel ground strap when handling the S55 and its components. 20 | Install the S55