Assembling and connecting the safety ground wirePrerequisitesWARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician mustperform all connections to DC power and to safety grounds. Do not attempt connecting to DCpower or installing grounds yourself. All electrical wiring must comply with applicable local ornational codes and practices. Damage due to servicing that is not authorized by Dell is notcovered by your warranty. Read and follow all safety instructions that came with the product.Steps1. Strip the insulation from the end of the green/yellow wire, exposing approximately 4.5 mm (0.175inch) of copper wire.2. Using a hand-crimping tool (Tyco Electronics, 58433-3 or equivalent), crimp the ring-tongueterminal (Jeeson Terminals Inc., R5-4SA or equivalent) to the green/yellow wire (safety ground wire).3. Connect the safety ground wire to the grounding post on the back of the system using a #6-32 nutequipped with a locking washer.Figure 39. Assembling and connecting the safety ground wire1. #6-32 nut 2. spring washer3. locking washer 4. safety ground wire5. grounding postAssembling the DC input power wiresPrerequisitesWARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician mustperform all connections to DC power and to safety grounds. Do not attempt connecting to DCpower or installing grounds yourself. All electrical wiring must comply with applicable local ornational codes and practices. Damage due to servicing that is not authorized by Dell is notcovered by your warranty. Read and follow all safety instructions that came with the product.105