Glossary
GL–3
Electronics
Industries
Association
See EIA.
electrostatic
discharge
See ESD.
EMI
Electromagnetic interference. The impairment of a signal by an
electromagnetic disturbance.
EMU
Environmental monitoring unit. The device that monitors the status of the
controller enclosure that might include power, intake air temperature, fan
status, and so forth. The EMU detects error and fault conditions, displays
these conditions, reports the conditions to the user and the array controller,
and, in some cases, implements corrective actions.
En
An EMU alphanumeric display code representing “enabled.” An option that
enables the audible alarm horn.
See also Ho.
environmental
monitoring unit
See EMU.
ESD
Electrostatic discharge. The discharge of a potentially harmful static electric
voltage as a result of improper grounding.
external cache
battery
See ECB.
fan
An airflow device mounted in a StorageWorks enclosure.
FAST 10
Wide SCSI. Establishes a maximum wide transfer rate of 20 MB/s.
FAST 20
See Ultra SCSI.
FCC
Federal Communications Commission. The federal agency responsible for
establishing standards and approving electronic devices within the United
States.
FCC Class A
This certification label is displayed on electronic devices for use only in a
commercial environment within the United States. A CE-Mark certified
device can be used in the United States in the same environment as the
equivalent FCC certification.