Users Guide
• When possible, use one hand only to connect or disconnect signal
cables.
• Never turn on any equipment when there is evidence of re, water, or
structural damage.
• Do not attempt to switch on power to the machine until all possible
unsafe conditions are corrected.
• Assume that an electrical safety hazard is present. Perform all
continuity, grounding, and power checks specied during the
subsystem installation procedures to ensure that the machine meets
safety requirements.
• Do not continue with the inspection if any unsafe conditions are
present.
• Before you open the device covers, unless instructed otherwise in the
installation and conguration procedures: Disconnect the attached AC
power cords, turn off the applicable circuit breakers located in the rack
power distribution panel (PDP), and disconnect any
telecommunications systems, networks, and modems.
• Connect and disconnect cables as described in the following
procedures when installing, moving, or opening covers on this product
or attached devices.
To disconnect:
1. Turn off everything (unless instructed otherwise).
2. For AC power, remove the power cords from the outlets.
3. For racks with a DC power distribution panel (PDP), turn off the circuit
breakers located in the PDP and remove the power from the
Customer's DC power source.
4. Remove the signal cables from the connectors.
5. Remove all cables from the devices.
To connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. For AC power, attach the power cords to the outlets.
5. For racks with a DC power distribution panel (PDP), restore the power
from the Customer'sDC power source and turn on the circuit breakers
located in the PDP.
6. Turn on the devices.
• Sharp edges, corners and joints may be present in and around the
system. Use care when handling equipment to avoid cuts, scrapes and
pinching. (D005)
Heavy equipment - personal injury or equipment damage might result if
mishandled. (D006)
xxii Dell EMC ML3 Tape Library: User's Guide