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S
S - secret
S-HTTP - Secure Hypertext Transfer Protocol
S - Interface - The electrical interface between the NT-1 and the Terminal Adapter or other ISDN equipment. ISDN equipment with built-in NT1Õs do not necessarily provide access to the S interface. Multiple devices can share an NT-1 by connecting on the S interface. Also known as the S passive bus.
S-A - satellite access
S - compartmented key
S&F - store and forward
S/EWCC - signals intelligence/electronic warfare coordination center
S/N - signal to noise ratio
S1 - Adjutant (US Army)
S2 - Intelligence Officer (US Army)
S2M - European term for ISDN PRI. See PRI and ISDN 30.
S3 - stand-alone shared storage
S3 - Operations and Training Officer (US Army)
S4 - Supply Officer (US Army)
S6 - Communications Officer (US Army)
SA - selective availability (GPS)
SA - situational awareness
SA - system administrator
SA Trunk Module - This module provides symmetric and asymmetric trunking capabilities (asymmetric means that the transmit and receive rates do not have to be the same on the trunk).
SA - symmetric/asymmetric
SA - standalone
SA-TRK - symmetric/asymmetric trunk
SA - Security Administrator
SAA - satellite access authorization
SAA - SIPRNET Access Authorization
SAAS - standard ammunition automated system
SABER - situational awareness beacon with reply
SABI - secret and below interoperability
SABM - set asynchronous balanced mode
SAC - service access code
SACCS - strategic automated command and control systems (Navy)
SACK - selective acknowledgement
SACS - secure access control system
SACS - satellite mission control subsystem
SADL - situational awareness data link
SADT - structured analysis and design technique
SAG - SQL access group
SAILS - standard Army installation logistics system
SAIRS - standardized advanced infrared system
SAISS - Subcommittee on Automated Information Systems Security
SAL - security access level
SALTS - streamlined alternative logistic transmission system
SAM - self-assembled monolayers
SAM - software asset management
SAM - SPEED Application Manager
SAME - SQL Ada module extension
SAMEDL - SQL Ada module extension description language
SAMMS - standard automation material management system
SAMP - Security/Accreditation Management Plan
SAMP - Security Association Management Protocol
Sampling Rate - The rate per unit of time at which samples are taken of a particular waveshape's amplitude.
SAN - storage area network
SAP - survivable adaptive planning
SAR - Synthetic Aperture Radar
SAR - (Segmentation and Reassembly) - A method of breaking up arbitrarily sized packets. Source: ATM Forum.
SAR - satellite access request
SAR/MTI - Synthetic Aperture Radar and Moving Target Indicator
SARK - Saville Advanced Remote Keying
SAS - survivable adaptive systems
SAS - second antenna system
SASD - server-attached storage device
SASS - SIGINT analysis and simulation system
SASS - Systems Acquisition Support Services (DIA)
SAT - security audit trail
SAT - satellite
SAT-R - standard AUTODIN terminal-GENSER
SAT-Y - standard AUTODIN terminal-DSSCS
SATAN - Security Administrator Tool for Analyzing Networks
SATCOM - satellite communication
Satellite Communications - The use of geostationary orbiting satellites to relay transmission from one earth station to others.
SATM - INMARSAT Module
SATPLAN - Satellite Planner
SATR - Synthetic Aperture Targeting Radar
SAU - servo amplifier unit
SAW - surface acoustic wave
SB - switchboard
SB - small board
SBC - single board computer
SBC - Signaling Buffer Controller
SBCC - Signaling Buffer Controller Card
SBI - (Shelf Bus Interface) Card - This card on the Promina HSS-2 shelf is the interface between the SX-2 module and the other modules in the shelf. There is an SBI A card and an SBI B card for redundancy.
SBIRS - Space-Base infrared system
SBIS - Sustaining Base Information Services
SBLC - standard base-level computer
SBM - Satellite Broadcast Manager
SBM - Satellite Broadcast Manager
SBPSK - shaped beam phase shift keying
SBU - sensitive but unclassified
SC - single channel
SC - system controller
SC - Signal Corps
SC - switched connected
SC - station clock
SCADA - supervisory control and data acquisition
SCAMP - Single Channel Antijam ManPortable Terminal
SCAMPI - single channel anti-jam manportable interface
SCC - serial communications controllers
SCC - specialized common carrier
SCC - standards coordinating committee
SCC - system control center
SCC-2 - system control center-2
SCCB - software configuration control board
SCCS - source code control system
SCD - standard color display
SCDL - surveillance control (common) data link
SCDU - signal conditioning and display unit
SCE - service control environment (AIN)
SCE - service creation environment
SCE - service cryptologic element
SCE - software capability evaluation
SCF - service control facility
SCG - switching control group
SCI - scaleable coherent interface
SCI - sensitive compartmented information
SCIF - sensitive compartmented information facility
SCIP - Society of Competitive Intelligence Professionals
SCLP - (Signaling Channel Link Protocol) - The SCLP (also known as the Signal Unit) provides a common channel signaling system that allows each node to communicate control and signal information with other nodes in a network. An SCLP channel is associated with every trunk in the network. In Promina networks SCLP is also used to transport IP Packets.
SCLP Task - All signaling and control information is transmitted between nodes on pre-defined trunk signaling channels called Signaling Channel Link Protocol (SCLP) channels. SCLP refers to the Layer 2 point-to-point protocol. An SCLP task exists for each trunk on a node to manage the Layer 2 protocol. This SCLP task also performs some Layer 3 routing functions.
SCM - software configuration management
SCM - spectrum certification module
SCM - Security Configuration Manager
SCMP - software configuration management plan
SCN - switched circuit network
SCO - Santa Cruz Operation
SCOMP - secure communications processor
SCOPS - security concept of operations
SCOTT - Single Channel Objective Tactical Terminal
SCP - service control point (AIN)
SCP - system control program
SCPC - single channel per carrier
SCPU - switch control processor unit
SCR - Silicon-Controlled Rectifier
SCRF - subchannel reassignment function
SCRIPS - Service Center Recognition Image Processing System (IRS)
SCS - survivable control system
SCS - stabilization and control subsystem
SCSI - small computer systems interface
SCSR - single channel signaling rate
SCSS - Service Center support system
SCTE - Source Clock Terminal Element
SD - send data
SD - switched DA
SDA - software disk array
SDA - system design architecture
SDC - signal data connector
SDC - signal data converter
SDD - Secure Data Device
SDD - software design document
SDE - Shared Data Environment
SDF - software development file
SDF - standard delay file
SDH - synchronous digital hierarchy
SDI - single document interface
SDK - software development kit
SDL - Software Development Library
SDLC - (Synchronous Data Link Control) - A bit-oriented, layer 2 protocol developed by IBM that is essentially the same as the ISO HDLC and the CCITT LAP-B, among others.
SDM - space-division multiplexing
SDM - sync detection module
SDMO - Specifications & Data Management Officer
SDMX - space division matrix
SDN - software defined network
SDN - SOF Deployable Node
SDNRI - secure digital net radio interface
SDNRIU - secure digital net radio interface unit
SDNS - secure data networking system
SDP - software development plan
SDP - service delivery plan
SDR - service denial records
SDRA - satellite digital radio service
SDRAM - synchronous DRAM
SDS - small digital switch
SDS - software development system
SDS - strategic data system
SDS - sysops distribution system
SDS - space division subscriber
SDSG - space division switching group
SDSL - Single-line, hi-bit-rate DSL
SDSL - symmetric digital subscriber line
SDSM - space division switching matrix
SDTS - spatial data transfer standard
SDU - storage device unit
SDVS - state delta verification system
SEAD - Suppression of Enemy Air Defenses
SEAL - segmentation and reassembly layer (protocol)
Sealing Current - Unlike telegraphy, teletypewriter and POTS lines, most digital lines (such as ISDN) use a voltage rather than current mode of operation. Sealing Current allows a controlled amount of current to be passed through a telecom circuit for purposes of "healing" damage caused by corrosion. Bellcore specifies sealing current on the ISDN U interface.
SEASTRAT - sealift strategic contingency planning system
SEAT - Seat Management (GSA/FTS)
sec - section
SEC - Software Engineering Center at Fort Monmouth, New Jersey.
Secam - System Electronique Couleur Avec Memoire
SECDEF - Secretary of Defense
SECOM - Software Engineering Cost Model
SEE - software engineering environment
SEE - softcopy exploitation system
SEGAT - secure gateway
SEI - Software Engineering Institute
SEI - specific emitter identification
SEL - secure electronic transactions
SEL - select
SELCALL - selective call
Selected Path - User-specified path for a call.
SEM - standard electronic module
SEM - Service Extension Module
SEMA - special electronic mission aircraft
SEN - Small Extension Node
SENS - small extension node switch
SEOC - systems engineering operations center
SEP - Signal Entry Panel
SEPG - Software Engineering Process Group
Serial Port - A device that converts parallel input to serial form, which is used in data transmission.
Serial Transmission - A method of information transfer in which the bits comprising a character are sent in sequence, one at a time.
SES - sales emulation system
Session Parameters - Specifies the Operator Interface environment for a particular operator ID.
SET - secure electronic transaction (protocol)
SET - Secure Encrypted Transaction
SET - software engineering technology
SETA - systems engineering and technical assistance
SETAMS - systems engineering, technical assistance, and management services
SEVAS - secure voice access system
SEVMS - security enhanced virtual memory system
SEW - scientific engineering workstation
SEW - Space, Electronic Warfare
SF - single frequency
SF - Superframe. A type of Line format supported on T1 circuits. The Telco determines the line format and line encoding of your line. ESF is the preferred Line Format on T1 circuits. See Line Format.
SF - store and forward or primary/connected RI
SFAF - standard frequency action format
SFi - spectral composition
SFOB - special forces operating base
SFQL - structured full-text query language
SFT - system fault tolerance
SFUG - security features userÕs guide
SFW - sensor fuzed weapons
SG - supergroup
SGDF - supergroup distribution frame
SGDSA - Shadow Global Directory System Agent
SGEN - signal (system) generator
SGL - single
SGLS - space-ground link subsystem
SGML - Standard Generalized (general) Markup Language
SGT - Sergeant
SHA - secure hash algorithm
SHADE - shared data environment
SHARES - Shared Resources for High Frequency Radio Program
SHD - special handling designator
Shelf - A shelf is a mechanical assembly that houses cards and a backplane.
SHF - super high frequency
Shielding - A means of controlling EMI from electronic components.
Shockwatch Indicators - Devices used during shipping to indicate whether the rated G-force (25-50 Gs) was exceeded during shipping.
SHS - secure hash standard
SHTU - simplified handheld terminal unit
SI - service interval
SI - special intelligence
SIA - Semiconductor Industry Association
SIB - system interface bus
SIC - standard industrial code
SICPS - Standard Integrated Command Post System
SICPS - Standardized Integrated Command Post Shelter
SID - secondary imagery dissemination
SID - semantic identifiers
SID - serial input data
SID - station ID
SIDF - System Independent Data Format (Association)
SIDR - Secure Intelligence Data Repository
SIDS - secondary imagery dissemination system
SIDT - store interrupt descriptor table
SIE - Standards Improvement Executives
SIE - systems integration environment
SIF - software integration facility
SIG - special interest group
SIG - signal
SIGC2 - signal command and control
SIGCEN - signal Center
SIGINT - signal intelligence
Signal Trace - This command is used to record all the signaling information (in a trace buffer) carried by the A-B bits relative to a specified port.
Signaling System Number 7 - Refers to the set of CCITT recommendations Q.701 through Q.741. Signaling System Number 7 is generally recognized as the common-channel signaling method used in an Integrated Services Digital Network (ISDN).
SIGO - signal officer
SIGSEC - signals security
SII - system internal interface
SIJ - signal initiated jamming
Silence - Suppression - See Statistical Multiplexing
SILO - signal intercept from low orbit
SILS - standard for interoperable LAN security
SIM - sensor interaction model
SIM - subscriber identity modules
SIMD - single instruction, multiple data
SIMLM - Single Integrated Medical Logistics Manager
SIMMS - single inline memory modules
SIMNET - simulation network
SIMO - Systeme Integration Management Office
SINAD - signal+noise+distortion noise+distortion
SINCGARS - Single-Channel Ground and Airborne Radio System
SINS - state-wide integrated narcotics system
SIO - serial input/output
SIO - Special Information Operations (DOD)
SIOP - Single Integrated Operational Plan
SIOP-ESI - Single Integrated Operational Plan-extremely sensitive information
SIP - system improvement plan
SIP - Session Initiation Protocol
SIPR - Secret Internet Protocol Router
SIPRNET - Secret Internet Protocol Router Network
SIR-C - space imaging radar C
SIRC - security incident response capability
SIRFC - suite of integrated radar frequency countermeasures
SIRST - Shipboard Infra-Red Search and Track
SISS - Subcommittee on Information Systems Security
SITTEMPS - situation templates
SIVVR - Software Independent Verification and Validation Report
SL - subscriber line
SLA - service level agreement
SLAR - side-looking airborne radar
Slash Commands - Expert mode commands that perform Operator Interface commands more quickly.
SLC - submarine laser communications
SLC - subscriber line charge
SLC - subscriber loop carrier
SLC-96 - A Subscriber Loop Carrier Circuit system manufactured by AT&T (now Lucent). SLC-96 has its own version of T1 framing between it and the CO. This interface is the Bellcore TR-008 or the newer GR-303 interface which are specialized versions of T1 intended to allow transparent transport of analog features such as Caller ID, Call Waiting, etc.
SLCM - sea launched cruise missile
SLCSE - software life cycle support environment
SLCT - similar line control terminal
SLD - system link designator
SLES - single line entry system
SLGR - small, lightweight global positioning system receiver (GPS)
SLIC - system-licensed internal code
SLIC - 1. Subscriber Line Interface Circuit, see Line Card. 2. The equipment used with the AT&T (Lucent) SLCC Subscriber Loop Carrier Circuit, a system used to multiplex a number of subscriber loops onto a single circuit to reduce fixed costs.
SLIP - (Serial Line Interface Protocol) - SLIP software allows Internet Protocol, normally used on Ethernet, to be used over a serial line (e.g., an RS-232 serial port connected to a remote access modem).
SLM - subscriber list management
SLOC - software lines of code
SLP - Service Logic Program
SLP - Service Location Protocol
SLSI - super large-scale integration
SLV - slave
SM - service message
SM - system management
SMART-T - Secure Mobile Antijam Reliable Terminal - Tactical
SMB - server message block
SMCS - satellite mission control subsystem
SMD - standard microcircuit drawing
SMD - surface mounted device
SMD - switch mux/demux
SMDPS - strategic mission data preparation system
SMDS - (Switched Megabit Data Service) - A connectionless high-speed data transmission service that provides wide area LAN connectivity through the public telephone network.
SMF - system management function
SMG - secure mail guard
SMI - Soldier Machine Interface
SMI - structure of management information
SMIB - security management information base
SMIF - standard mechanical interface
SMM - system management mode
SMP - symmetric multiprocessing
SMPC - shared memory parallel computer
SMR - specialized mobile radio
SMRAM - system management random access memory
SMRI - service message RI
SMRS - specialized mobile radio system
SMS - system-managed storage
SMS - simple (short) message service
SMS - service management station
SMT - surface mount technology
SMTP - Simple Mail Transport Protocol
SMTS - space and missile tracking system
SMU - system management utility
SMU - Switch Multiplex Unit
SMUX - smart multiplexer
SMX - satellite multiplexer
SN - secondary-nonconnected
SN - SEN net variable
SNA - (System Network Architecture) - An IBM communications architecture that describes the logical structure, formats, protocols, and operational sequences to transmit information units through a communications network.
SNAP - Shipboard Non-tactical Automated Program
SNAP - subnetwork access point
SNAP - switched network automated planner
SNCS - secondary net control station
SNI - subscriber network interface
SNIU - secure network interface unit
SNMP - Simple Network Management Protocol
SNOS - silicon nitride oxide semiconductor
SNPA - subnetwork point of attachment
SNR - signal to noise ratio
SNS - secure network server
SNS - secondary node switch
SOA - Start of Authority
SOAC - Signal Officer Advanced Course
SOAP - simple object access protocol
SOBC - Signal Officer Basic Course
SOC - Special Operations Command
SOCCE - special operations command and control element
SOCEUR - Special Operations Command Europe
SOCOM - special operations command
SOCPAC - Special Operations Command Pacific
SOCRATES - Special Operations Command Research, Analysis, and Threat Evaluation System
SOCS - Subcommittee on Computer Security
SOE - standard operating environment
SOF - special operations forces
SOF-IV - Special Operations Forces-Intelligence Vehicle
SOF - Special Operations Forces
SOFAMPS - SOF advanced mission planning system
SOFPARS - SOF operations force planning and rehearsal system
SOFTACS - special operations forces tactical assured connectivity system
SOFTECS - SOF technical control system
SOI - Signal operating instructions
SOIC - small outline integrated circuits
SOICS - special operations improved cryptographic system
SOIS - Special Operations Intelligence System
SOJ - stand-off jammer
SOL - simulation oriented language
SOM - system object model
SOM - Start of Message
SONET - (Synchronous Optical Network) - A fiber optic standard. The basic signal operates at 51.840 Mbps. The information payload can be one DS3 datastream.
SONOS - silicon oxide nitride oxide semiconductor
SOP - standing operating procedure
SORDAC - Special Operations Research, Development and Acquisition Center
SOSC - Systems Operational Support Center
SOSUS - sound surveillance system
SOT - start of text
SOTA - Signals Intelligence Operational Tasking Authority
SOTAS - Stand-off target acquisition system
SOTVS - special operations tactical video system
SOUTH - US Southern Command
SOUTHAF - Air Force component, US Southern Command
SOUTHCOM - US Southern Command
SP - search pattern
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
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
SSA - System Security Administrator
SSA - system security analysis
SSAA - system security authorization agreement
SSAP - source service access point
SSB - single sideband
SSC - (Secondary Signaling Channel) - 1. SSC is a user-configurable alternative to Signaling Channel Link Protocol (SCLP) for carrying traditional internodal signaling and IP Packets. Because SSC can carry internodal traffic, it can be used to replace or supplement SCLP functionality. SSC can be used on an as needed basis to provide extra bandwidth for increased internodal traffic. See also SCLP. 2. SIPRNET support center
SSC - SIPRNET support center
SSCOP - service specific connection-oriented protocol
SSCS - standard satellite control systems
SSDS - ship self-defense system
SSE - system security engineering
SSEE - shipÕs signals exploitation equipment
SSEM - system and server evaluation model
SSF - software support facility
SSGA - system support gate array
SSH - secure shell
SSI - small scale integration
SSI - synchronous service window
SSI - standing signal instructions
SSIMP-LR - Soldier/Sailor Interface Management Program - Local/Remote
SSL - secure sockets layer
SSL - standard security label
SSM - System/Security Manager
SSMA - spread spectrum multiple access
SSME - spread spectrum modulation equipment
SSMI - simplified soldier-machine interface
SSMP - System Safety Management Plan
SSMS - Signal intelligence manpack system
SSMS - single shelter message switch
SSN - switched service network
SSO - Special Security Officer
SSP - single source processor
SSR - software specification review
SSRA - system safety risk assessment
SSRP - simple server redundancy protocol
SSRR - strict source and record route
SSRT - Sub Surface Receive Terminal
SSS - system segment specification
SSS - Single Shelter Switch
SSSA - software systems support activity
SST - spread-spectrum technology
ST - synchronous transport
ST - student text
ST - reference points in ISDN interface
ST - send timing
ST&E - security test and evaluation
STA - system tape A
STA - CLK station clock
STA - ID station identification number
STACCS - Standard Theater Army Command and Control System
STAIRS - storage and information retrieval system
STAMIS - Standard Army Management Information System
STAMPS - stand-alone message processing system
STANAG - Standardization Agreement
STAR - satellite tracking using ambient radio frequency
STAR - System Threat Analysis Report
Star Topology - The point-to-point wiring of network elements to a central node.
STAR-T - Super (High Frequency Tri-band) Advanced Range Extension Terminal
STAR-T - SHF Tri-Band Advanced Range Extension Terminal
STARS - software technology for adaptable, reliable systems
Start Bit - The first element in each character in asynchronous transmission.
STARTEX - start of exercise
Station - NDI nondevelopmental item
Station Clock - An external device that receives a timing signal from an external source and passes it through the USD to the node. It provides a 4 kHz reference frequency to the node and an external frequency reference.
Station Line - A telephone circuit from a PBX to a telephone on that PBX. Since this is a telephone-to-switch connection it is considered to be a"line". See Line and Trunk.
Statistical Multiplexer - Dynamically allocates trunk capacity to active input channels only, allowing the connection of more devices than with traditional multiplexers.
Statistical Multiplexing - A method of improving effective bandwidth of a Telco channel. Statistical Multiplexing takes advantage that there are typically many pauses in a conversation. By taking advantage of this fact, and not sending the pauses, improvements in efficiency can be made. Also referred to as silence suppression. See Circuit Switched.
STATS - statistics
Status Level - Restricts the amount of access that an operator has to the network and the tasks on the network that the operator can perform. The Operator Interface has four status levels or levels of security.
STAWRS - simplified tax and wage reporting system (Treasury)
STC - SHAPE Technical Centre
STC - Software Technology Center
STC - Secondary Traffic Channel
STD - subscriber trunk dialing
STD - standard
STDIS - space division timing distributor
STDM - statistical time division multiplexer
STDMA - self-organizing time division multiple access
STDN - secure tactical data network
STE - secure telephone equipment
STE - secure terminal equipment
STE-R - remote controllable secure terminal equipment
STEL - secure telephone
STEP - standard for the exchange of product
STEP - Standardized Tactical Entry Point
STGEN - space division matrix timing generator
STI - summing telephone interface
STIC - Standard Interface Controller
STIG - Security Technical Implementation Guide
STIISP - Scientific and Technical Intelligence Information Services Program
STK - strategic-to-tactical KEK
STM - synchronous transfer mode
STN - software transfer notice
STO - science and technology objectives
STO - special technical operations
STO - store
Stop Bit - The last element of a character in asynchronous transmission.
STOW - Synthetic Theater of War
STP - shielded twisted pair
STP - signal transfer point
STP - software test plan
STP - step
STR - software test report
STRADIS - structured analysis, design and implementation of information system (NATO)
STRADS - strategic deployment system
STRATCERT - Strategic Command computer emergency response team
STRED - Standard Tactical Receive Equipment Display
STS - Subcommittee on Telecommunications Security
STS - (Standard Shelf) - A mechanical assembly (chassis) containing the feature and common equipment modules plus the Bus Terminator Interface in a Promina 800. This shelf consists of 12 card slots and power supplies.
STS - SSIMP-LR Trainer Software
STS-3c - synchronous transport signal 3 concatenated
STSVT - strategic/tactical secure voice terminal
STU - secure telephone unit
STU - secure terminal unit
STU-III - Secure Telephone Unit III
STX - strategic-to-tactical TEK
SUB - subscriber
Subrate - Any data port speed that is less the 64 kbps.
Subrated - Analogous to DS0 channels on a DS1 data stream. A DS3 data stream can be subrated into DS1 data streams using M13. The Promina uses a non-subrated (or proprietary format) downstream for T3. Third-party equipment will not be able to separate circuit information out of the data stream payload.
SUBS - subscriber(s)
Subscriber - The customer of a Telecommunications company. This term dates back to when a local Telephone Company was formed at the specific request of a group of customers who agreed in advance to "subscribe" to the service.
SUM - software userÕs manual
SUPCOM - support command
SUPE - supervisory commands program
Superframe - See SF
Supervisor - Software - Software in the processor module that controls and manages the node.
SUPP - supplement
supv - supervisor
SUR - small unit radio
SURTASS - surveillance towed array sensor system
SURVIAC - Survivability/Vulnerability Information Analysis Center
SVAR - S variable
SVC - switched virtual circuit
SVD - simultaneous voice and data processor
SVGA - super video graphics array
SVI - standardized virtual interface
SVLTU - service line termination unit
SVM - secure voice module
SVP - software validation plan
SVS - secure voice system
SVT - secure voice terminal
SVTC - secure video teleconferencing
SW - software
SW - switch
SWA - Southwest Asia
SWAN - satellite wide area network
SWAN - shipwide area network
SWBD - switchboard
SWC - strike warfare coordinator
SWDMX - Switch DEMUX, Switch Demultiplexer
SWF - Software FORTEZZA
SWIT - software integration and test
Switch - Telephone company switching device which "makes the connection" when you place a call. Modern switches are specialized computers. ISDN service is provided from a "Digital" switch, most commonly an AT&T model "5ESS", Northern Telcom model "DMS-100", or Siemens model "EWSD". The switch, and related software running on it, will determine which ISDN protocol(s) will be available to customers connected to it. See also PBX.
Switched Circuit - A channel which is not permanent in nature, but is connected through a switching device of some kind. The switching device allows a switched circuit to access many other switched circuits (the usual "dial up" type of telephone channels). Once the connection is made however, the complete capacity of the channel is available for use. As opposed to a Dedicated Circuit.
Switched-56 - A type of digital telephone service developed in the mid-1980's which allows dialing on a single 56Kbps line. Each Switched-56 circuit has 1 or 2 copper wire-pairs associated with it. Switched-56 is being rapidly replaced with ISDN, which is cheaper and more flexible. See also CSU/DSU.
Switching - The ability to create or change the path of a transmission.
SWL - short wavelength
SWMUX - Switch MUX/DEMUX, Switch MUX, Switch Multiplexer
SWOLOP - Sun Workstation On-line Operational Program
SWPS - strategic war planning system
SWS - silly window syndrome
SX - (Switching Exchange) Module - In a Promina 800, this module provides the switch matrix and clocking for the node. It connects to the SBI, BXI, and T3I cards.
SYN - synchronous idle
SYN - synchronization character
SYN - synchronize sequence numbers flag, TCP header
SYNBAD - synthetic battlefield development
SYNC - synchronization
SYNCH - synchronize/synchronization
Synchronous Data - A form of serial data which uses a clock signal to synchronize the bit stream. SInce, unlike Asynchronous Data, no start and stop bits are use, data throughput is higher than with asynchronous data. ISDN uses Synchronous data.
Synchronous Transmission - Data transmission in which synchronization is controlled by timing signals which are independent of the data signals on the DTE/DCE interface, and which are synchronized to a common, or network, reference. A constant clock speed is maintained between end terminals during (and between) the characters (or groups of characters) being transmitted; transmission in which the sending and receiving instruments are operating continuously at substantially the same frequency and in which the desired phase relationship may be maintained by means of correction.
SYNCRX - sync command receive
SYNCTX - sync command transmit
SYNTRAN - T3 datastream format with synchronous, subrated T1 data. This is not compatible with the Promina 800.
SYS - system
SYSADMIN - system administration
SYSCON - system control
SYSGEN - system generator
SYSLOG - system log
SYSOP - system operator
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