Installing The Ac Cords - Sun Microsystems SPARC Enterprise T5120 Installation And Service Manual

2.5

Installing the AC Cords

1. Use an antistatic strap for this procedure.
2. Attach an AC cord to an internal AC cable at the rear of the External I/O
Expansion Unit, then connect the AC cord to an AC outlet.
The PSUs should be connected to two independent external AC power sources so
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that service will not be interrupted if one AC power source fails.
For the type A cable plate, route the AC cords along the nearest side of the rack.
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For the type B cable plate, route the left AC cord over the top of the cable plate to
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the right side of the rack. Place the connector of the left AC internal cable in the
rectangular opening in the top of the type B cable plate to save space.
Note – Do not attempt to connect the internal AC cable directly to an AC socket
(power distribution unit or power strip). You must use one of the AC cords supplied
with the External I/O Expansion Unit.
3. Attach an AC cord to the remaining internal AC cable as in
Note – The fan might turn on when you insert a power supply into the External I/O
Expansion Unit. This is normal behavior if you are replacing a PSU while the other
PSU is powered up.
Chapter 2 Installing the External I/O Expansion Unit in a Rack
Step 2.
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