Dell EMC PowerSwitch Z9100–ON Installation Manual page 30

Figure 18. DC power connector and wiring block
1. DC wire RTN
3. Captive screws (2)
5. PSU status LED
7. DC wire –48V
Figure 19. DC power connector ground
1. Ground nut
3. Lock washer
5. Device grounding rod
To connect a DC PSU to the site's DC power source, follow these steps:
1. Strip 1/2 inches of insulation from each of the power connector's wires (RTN and –48V), as shown.
2. Insert each of the power connector's bare wire lengths into the wiring block. Insert RTN into one hole and –48V into the
other hole, as shown.
3. Use a flat-blade screwdriver to tighten the screws that secures the bare wires into the wiring block.
4. Secure the site's DC power source wires to the other side of the wiring block (see steps 1 and 3).
30 Power supplies
2. DC power connector
4. Orange tab
6. DC power socket
2. Washer
4. Ground cable