Dell Force 10 S50N Guide De Démarrage Rapide page 10

CAUTION: The CX4 module does not use transceivers. However, you can use
a CX4 cable with an XFP port by inserting a CX4 XFP converter (catalog
name GP- XFP-1CX4) into the slot. An XFP port does not support the use of
the cx4-cable-length command.
NOTE: For details on Dell Force10 supported optics, refer to
http://www.force10networks.com/products/specifications.asp
Power Up Sequence
Supply Power and Power Up the System
There is no power switch. Connecting the switch to either an AC or DC power
source starts the switch. The S50V and S50N switches have both AC (3-prong
plug receptacle) and DC (-48V terminal-type) connections on the back of the
unit. They can use either power source independently or in combination, with
the DC source in a backup mode (except for the 470W DC power supply). You
have three options for providing power to the switch — AC only, DC only, or
using both AC and DC sources. If you select the third choice — AC and DC —
the switch will only use the DC source after the AC source fails.
The rear of the S50N and S50V models have both an auto-sensing 110/220V AC
receptacle and a standard -48V terminal-type DC connector. The rear of an
S50N differs only in the arrangement of the lugs on its DC terminal block. Each
system ships only with the AC power cord.
Dell Force10 recommends re-inspecting your system prior to powering up.
Verify that:
• The equipment is properly secured to the rack and properly grounded.
• The equipment rack is properly mounted and grounded.
• The ambient temperature around the unit (which may be higher than the
room temperature) is within the limits specified for the unit.
• There is sufficient airflow around the unit.
• The input circuits are correctly sized for the loads and that sufficient over-
current protection devices are used.
• All protective covers are in place.
• Blank panels are installed if optional modules are not installed.
8
Installing the Hardware