Glossary, Acronyms, and Abbreviations - IIUSA

SP - security protocol
SP - signal processor
SP - start point
SP - security preferred, sound power
SP - space
SP/WP - smart push/warrior pull
SP4 - security protocol layer 4
SPA - software process assessment
Space - A logical 0 condition on a data circuit.
SPADATS - space tracking detection system
SPAG - Standards Promotion and Application Group (EC)
Span - (Spanline) - A full duplex digital transmission line between
two digital facilities, such as between a carrier facility and the
customer installation.
Span-Mode - TRK-3 - A TRK-3 module installed in span-mode
connects directly to the transmission line or span (consists of a
front card and an interface card). Proprietary and clear channel
bundles are installed on span-mode cards. Also see Tandem-
Mode TRK-3.
SPARC - scalable processor architecture
SPB - Security Policy Board
SPC - small peripheral controller
SPC - statistical process control
SPD - speed
SPDVB - Special Device Controller B
SPDVC - Special Device Controller C
SPDVD - remote special devices demultiplexer
SPE - software product evaluation
SPEC - system performance evaluation cooperative
SPECAT - special category
SPEDE - system procurement by electronic data exchange
SPEED - Systems Planning, Engineering, and Evaluation Device
SPF - shortest path first
SPI - service provider interface
SPI - software process improvement
SPICE - software rrocess improvement and capability determination
SPID - Service Profile IDentifier- On the "National ISDN", "AT&T
Custom PMP" and "Custom DMS" ISDN protocols, the Telco
switch must receive correct SPID(s) from the CPE before it will
allow access to ISDN service. Intended to allow multiple
configurations on ISDN lines shared among different types of
CPE equipment. While your SPID may include your area code
and telephone number, the SPID is distinct from the telephone
number. Custom PTP and ETS 300 protocols do not require a
SPID.
SPIF - Security Policy Information File
SPIRE - spatial paradigm for information retrieval and exploration
SPIRIT - Special Purpose Integrated Remote Intelligence Terminal
SPIRITS - special in-band radiance imaging of targets and scenes
SPLX2W - simplex 2-wire
SPM - security policy model
SPOOL - simultaneous peripheral operations on line
SPP - scaleable parallel processor
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SPP - sequenced packet protocol
SPP - SPEED path profiler
SPRITE - signal processing in the element
SPS - software product specification
SPS - standard procurement system
SPSC - system planning and system control
SPT - sectors per track
spt - support
SPW - signal processing workstation
SPX - sequenced packer exchange
SPX Network Processor - A high-end statistical multiplexer using
packet technology to establish virtual circuits connecting data
devices in a wide-area network.
SQA - software quality assurance
SQAP - software quality assurance plan
SQC - statistical quality control
SQE - signal quality error
SQL - structured query language
SQP - Software Quality Program
SQPP - Software Quality Program Plan
SR - security required
SR - secondary-remote
SRA - subregistration authority
SRAM - static random access memory
SRB - Software Review Board
SRC - standard requirements code
SRCU - securable remote control unit
SRDM - (Subrate Data Multiplexing) - A subrate data multiplexer
divides a DS0 (64 kbps) into a number of subrate (64 kbps)
channels.
SRI - surveillance, reconnaissance and intelligence
SRM - security reference monitor
SRM - system resource manager
SRN - software release notice
SRN - single row nest
SRO - sharable and read only
SRPI - server-requester programming interface
SRS - software requirements specification
SRT - source routing transparent
SRT - Shipboard Receive Terminal
SRV - SEN rekey variable
SRWBR - short range wideband radio
SS - signaling system
SS - spread spectrum
SS-4 - selective signaling voice conference system
SS - Switch Supervisor
SSA - serial storage architecture
SSA - servicing security agency
SSA - software support activity