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To Connect:
1. Turn OFF subject dc power source(s) and equipment
(s) that are attached to this product.
2. Install the power supply unit(s) into the system
housing.
3. Attach dc power cord(s) to the product.
• Ensure correct polarity of -48 V dc connections:
RTN is + and -Vin (typical -48 V) dc is -. Earth
ground should be connected very well.
4. Connect dc power cord(s) to subject power source
(s).
5. Turn ON all the power source(s).
S035
CAUTION:
Never remove the cover on a power supply or any part that has this label attached. Hazardous voltage,
current, and energy levels are present inside any component that has this label attached. There are no
serviceable parts inside these components. If you suspect a problem with one of these parts, contact
a service technician.
Before removing a hot-swap power supply unit:
1. Read the safety information and installation guidelines (see
Guidelines" on page
2. If the server is in a rack, adjust the cable management arm (CMA) to gain access to the power supply
bay.
55).
To Disconnect:
1. Disconnect or turn off the subject dc power source(s)
(at the breaker panel) before removing the power
supply unit(s).
2. Remove the subject dc cord(s) and make sure the
wire terminal of power cord(s) is insulated.
3. Unplug the subject power supply unit(s) from the
system housing.
"Safety" on page iii
.
Chapter 3
Hardware replacement procedures
and
"Installation
103
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