Class A Device; Class B Device - Dell Inspiron Port Replicator User's Manual

1-14 Dell Inspiron Advanced Port Replicator User's Guide
Marking by the symbol
Directive and the Low Voltage Directive of the European Union. Such marking is
indicative that this Dell system meets the following technical standards:
EN 55022 — "Limits and Methods of Measurement of Radio Interference
Characteristics of Information Technology Equipment."
EN 50082-1: 1992 — "Electromagnetic compatibility—Generic immunity
standard Part 1: Residential, commercial, and light industry."
EN 60950 — "Safety of Information Technology Equipment."
NOTE: EN 55022 emissions requirements provide for two classifications:
Class A is for typical commercial areas.
Class B is for typical domestic areas.
This Dell device is classified for use in a typical Class B domestic environment.
A "Declaration of Conformity" in accordance with the preceding directives and
standards has been made and is on file at Dell Products Europe BV, Limerick, Ireland.
This device belongs to Class B devices as described in EN 55022, unless it is spe-
cifically stated that it is a Class A device on the specification label. The following
applies to devices in Class A of EN 55022 (radius of protection up to 30 meters).
The user of the device is obliged to take all steps necessary to remove sources of
interference to telecommunication or other devices.


Most Dell computer systems are classified by the Voluntary Control Council for
Interference (VCCI) as Class B information technology equipment (ITE). However, the
inclusion of certain options can change the rating of some configurations to Class A.
ITE, including peripherals, expansion cards, printers, input/output (I/O) devices,
monitors, and so on, integrated into or connected to the system, should match the
electromagnetic environment classification (Class A or B) of the computer system.
To determine which classification applies to your computer system, examine the
regulatory labels/markings (see Figures 1-7 and 1-8) located on the bottom or back
panel of your computer. Once you have determined your system's VCCI classification,
read the appropriate VCCI notice.
indicates compliance of this Dell system to the EMC