Other Information You May Need

not accept the terms of the agreement, call the customer assistance telephone number. For customers in the United States, call 800-WWW-DELL (800-999-3355). For customers outside the United States, visit support.dell.com and select your country or region from the top of the page.

WARNING: See the safety and regulatory information that shipped with your system. Warranty information may be included within this document or as a separate document.

•The Owner’s Manual provides information about system features and describes how to troubleshoot the system and install or replace system components. This document is available online at support.dell.com/manuals.

•The rack documentation included with your rack solution describes how to install your system into a rack, if required.

•Any media that ships with your system that provides documentation and tools for configuring and managing your system, including those pertaining to the operating system, system management software, system updates, and system components that you purchased with your system.

NOTE: Always check for updates on support.dell.com/manuals and read the updates first because they often supersede information in other documents.

Obtaining Technical Assistance

If you do not understand a procedure in this guide or if the system does not perform as expected, see your Owner’s Manual. Dell offers comprehensive hardware training and certification. See dell.com/training for more information. This service may not be offered in all locations.

NOM Information

The following information is provided on the device described in this document in compliance with the requirements of the official Mexican standards (NOM):

Importer:	Dell Inc. de México, S.A. de C.V.
	Dell Inc. de México, S.A. de C.V.
	Paseo de la Reforma 2620 -11º Piso
	Col. Lomas Altas
	11950 México, D.F.
Model number:	E21S
Supply voltage:	100–240 V CA (with 750 W, and 1100 W AC power supply unit) or –(48–60) V de CC
	(with 1100 W DC power supply unit)
Frequency:	50 Hz/60 Hz (AC power supply unit)
Current consumption:	12 A – 6.5 A (X 2) (with 1100 W AC power supply unit)
	10 A – 5 A (X 2) (with 750 W AC power supply unit)
	32 A (X 2) (with 1100 W DC power supply unit)

Technical Specifications

NOTE: The following specifications are only those required by law to ship with your system. For a complete and current listing of the specifications for your system, go to support.dell.com.