HP StorageWorks ESL E-Series User Manual page 180

Glossary
CISPR 22
This standard describes the emissions testing methods and test limits for
information technology equipment, such as computers, office machines, or
telecommunications equipment connected to low - voltage power main networks
(<600V). It does not apply to equipment whose primary function is radio
transmission or reception as defined by the International Telecommunications
Union (ITU) Radio Regulations.
The object of the standard is to establish uniform requirements for the conducted
and radiated disturbance levels of the equipment covered by the standard.
Disturbance limits are established for Class A and Class B equipment, and
measurement methods, operating conditions, and interpretation of results are
addressed.
Class A digital device
Class A equipment is intended for Commercial installation.
Class I laser product
Class 1 lasers are products where the power of the laser beam produced (the
accessible emission) is always below the Maximum Permissible Exposure value.
Therefore, for Class 1 lasers the output power is below the level at which it is
believed eye damage will occur. Exposure to the beam of a Class 1 laser will not
result in eye injury. Class 1 lasers may therefore be considered eye safe.
Class II laser product
Class 2 lasers are limited to a maximum output power of 1 mW. A person
receiving an eye exposure from a Class 2 laser, either accidentally or as a result of
someone else's deliberate action (misuse) will be protected from injury by their
natural blink reflex. This is a natural involuntary response which causes the
individual to blink and avert their head thereby terminating the eye exposure.
Elements
SCSI designation for any device or bin in the library that can hold a cartridge.
SCSI elements include storage bins, tape drives, load port bins, and the picker.
EMI
Electro-Magnetic Interference refers to unwanted electrical noise present on a
power line. This noise may leak from the power lines and affect equipment that
isn't even connected to the power line. Such leakage is called a magnetic field.
Magnetic fields are formed when unwanted noise voltages give rise to noise
currents. Such noise signals may adversely affect electronic equipment and cause
intermittent data problems.
ESD
Electrostatic Discharge
180 ESL E-Series Tape Library User's Guide