Removing A Dc Power Supply Unit - Dell PowerEdge E31S Series Owner's Manual

Figure 77. Assembling the DC Input Power Wires
1. DC wire RTN
3. captive screw (2)
5. DC power socket
Figure 78. Removing the DC Input Power Wires
1. wire RTN
3. captive screw (2)
5. DC power socket

Removing a DC power supply unit

Prerequisites
NOTE: For equipment using –(48–60) V DC power supply units (PSUs), a qualified electrician must perform all connections
to DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. All electrical
wiring must comply with applicable local or national codes and practices. Damage due to servicing that is not authorized by
Dell is not covered by your warranty. Read and follow all safety instructions that came with the product.
2. DC power connector
4. rubber cap
6. DC wire –48 V
2. DC power connector
4. rubber cap
6. wire –48 V
Installing and removing system components 139