have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
2 
1 
Cabling instructions for vertical-mount PDUs
If your Rack PDU came with more than two line cords, select either the
1.Connect one of the line cords to the main inlet on the Rack PDU. Use the line cord that you will connect to your primary power source.
MAIN
MAIN
Figure 84. Connecting and routing the line cor s
2.Connect the other line cord to the Backup inlet on the Rack PDU. Use the line cord that you will connect to your backup power sour e.
3. Remove the screws on the cable clamps 1 and route the line cords through the clamps; then, reinstall the screws on the cable clamps 1 and repeat step 1. and step 2. for the other device if you installed two devices.
4.Route the line cords down and toward the rack side braces; then, route the line cords along the side brace towards the back of the rack cabinet and secure them with the cable straps that come with this option.
5.Route each line cord towards a dedicated independent power source, such as a
UPS or electrical outlet. Use the provided cable straps to secure the line cords
