Specifications

GL–8 Glossary
FCC Class B This certification label appears on electronic devices that can be used in either a
home or a commercial environment within the United States.
FCP The mapping of SCSI-3 operations to Fibre Channel.
FDDI Fiber Distributed Data Interface. An ANSI standard for 100 megabaud transmission
over fiber optic cable.
FD SCSI The fast, narrow, differential SCSI bus with an 8-bit data transfer rate of 10 MB/s.
See also FWD SCSI and SCSI.
fiber A fiber or optical strand. Spelled fibre in Fibre Channel.
fiber optic cable A transmission medium designed to transmit digital signals in the form of pulses
of light. Fiber optic cable is noted for its properties of electrical isolation and
resistance to electrostatic contamination.
FL_Port A port in a fabric where N_Port or an NL_Port may be connected.
flush The act of writing dirty data from cache to a storage media.
FMU Fault management utility.
forced errors A data bit indicating a corresponding logical data block contains unrecoverable
data.
frame An invisible unit used to transfer information in Fibre Channel.
FRU Field replaceable unit. A hardware component that can be replaced at the
customer’s location by DIGITAL service personnel or qualified customer service
personnel.
full duplex (n) A communications system in which there is a capability for 2-way transmission
and acceptance between two sites at the same time.