30 | Installing AC Power Supplies
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Securing the Chassis Ground
Installing Power Supplies
CAUTION: An E1200i AC power supply still has power after extraction, and has completely powered off when
the fans have stopped rotating. When replacing a power supply, to avoid arcing and discoloration of the supply
and the chassis pins, please wait for the fans to stop rotating before reinserting the supply
Power Cord Requirements
If using a power cord other then a Dell Force10 supplied power cord, the cord must terminate at a right
angle to the power module, see
Figure 7-1
. The power source end of the power cord must have an
appropriately sized plug that complies with your local electrical codes. Conductor size must also conform
to your local electrical codes.
CAUTION: The power cord is the main power disconnect device; ensure that the socket-outlet is located/
installed near the equipment and is easily accessible.
CAUTION: There are multiple power cords that require disconnecting. Disconnect all power cords before
servicing the power module.
The following are Force 10 supplied plug types. All power plug must comply with local codes. Check
with your Force 10 representative to purchase cords or plugs for your system.
• EU: CEE 7/7
• UK: CEE7/7
• SWZ: CEE7/7, 309
• JAP: NEMA 6-20, L6-20, L6-30
• JAP 220: NEMA 6-20, L6-20
Step Task
1 Locate the chassis ground connector nuts on the chassis rear (see
Figure 2-2 on page 11
).
2 Install the grounding cables to the ground nuts. The grounding cable must comply with your local electrical codes in
size and color (typically the color is green or green with yellow stripe).
NOTE:
Grounding cables must be terminated only with a UL-listed 2-hole lug with 1/4-inch holes on
3/4-inch spacing (see
Figure 7-2
).
Use ANSI UNC 1/4-20 x 1/2 bolt.
Tighten the bolt (torque should not exceed 25inch/lbs).
Connect the opposite end of the grounding cable to the nearest appropriate facility grounding post.
Figure 7-2. Cable Connector Required for E1200i AC
0.750"
igh-strand-count
conductor
diameter
2 Holes
All measurements in inches.
FN00011A
0.267
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