E1200I Dc Power Modules - Dell Force10 E300 Quick Start Manual

Step Task
Loosen the cord retainers locking screws (if needed) and tilt the AC-
2
cord retainer up approximately 15 degrees and gently slide the cover
away from the chassis.
Slide the power supplies into their slots until the module front is flush
3
with the shelf front.
Connect the Power Supply cord to the designated socket.
4
Re-install the AC-cord Retainer by tilting approximately 15 degrees and
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gently sliding in the long edge just above the AC cords.
Secure the retainer by tighten the locking screws on either side of the
6
retainer.
WARNING: Leakage Current (High Touch Current) in AC-powered systems:
AC power cords are secured to the power inlet using the provided brackets.
The power cord plugs must be secured to the building outlets by the qualified
chassis installer or a qualified electrician.

E1200i DC Power Modules

The E1200i DC system requires a minimum of one DC Power Entry Module
(PEM) to operate, but two are recommended for redundancy. To comply with
safety agency and EMI regulations, you must install covers on all power supply
slots not containing a PEM. Connect the PEMs to the appropriate branch circuit
protection as defined by local electrical codes.
The E1200i DC chassis contains two DC PEM slots.
You must provide your own cables to connect to a remote power source (for
example, a circuit breaker panel) in your equipment rack or office. Cables must
be sized to meet the following criteria:
• Rated for at least 150A service to allow for a fully loaded E1200i DC system
at low input voltage per your local electrical codes.
• Limits voltage drop across the cable length to 0.5V or less.
Before you make the cable connections, apply a coat of antioxidant paste to un-
plated metal contact surfaces. File un-plated connectors, braided straps, and bus
bars to a shiny finish. It is not necessary to file and coat tinned connectors or
other plated connection surfaces, such as on the E1200i DC PEM studs.
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Installing the Hardware