SA Source Address
SACCH Slow Associated Control Channel
SAFER Split Access Flexible Egress Routing (AT&T)
SAN Storage Area Network
SAP Second Audio Program
SAP Service Access Point
SAP Service Advertising Protocol
SAS Single Attached Station
SATAN Security Administrator Tool for Analyzing Networks
SBCCS Single Byte Command Code Set (IBM Corp.)
SC Subscriber Channel
SC System Controller
SCC Standards Coordinating Committees (IEEE)
SCO Synchronous Connection Oriented
SCP Service Control Point
SCSI Small Computer Systems Interface
SD Starting Delimiter
SDCCH Standalone Dedicated Control Channel
SDH Synchronous Digital Hierarchy
SDK Software Development Kit
SDLC Synchronous Data Link Control (IBM Corp.)
SDM Subrate Data Multiplexing
SDN Software D efined Network(AT&T)
SDP Service Delivery Point
SDR Software Defined Radio
SDSL Symmetric Digital Subscriber Line
SET Secure Electronic Transaction
SFD Start Frame Delimiter
SGML Standard Generalized Markup Language
SHF Super High Frequency (3 GHz to 30 GHz)
SHTTP Secure HyperText Transfer Protocol
SIF Signaling Information Field
SIF SONET Interoperability Forum
SIM Subscriber Identity Module
SIMA Simple Integrated Media Access
SIP SMDS Interface Protocol
SLA Service Level Agreement
SLD Service Level Definition
SLIC Serial Line Interface Coupler (IBM Corp.)
SLIP Serial Line Internet Protocol
SLP Service Location Protocol
SMDI Station Message Desk Interface
SMDR Station Message Detail Recording
SMDS Switched Multimegabit Data Services
SMP Symmetric Multi-Processor
SMR Specialized Mobile Radio
SMS Service Management System
SMS Short Message Service
SMT Station Management
SMTP Simple Mail Transfer Protocol
SN Switching Network
SNA Systems Network Architecture (IBM Corp.)
snagas SNA Gateway Access Server
SNI Subscriber Network Interface
SNMP Simple Network Management Protocol
SNS Simple Name Service
SOHO Small Office Home Office
SONET Synchronous Optical Network
SPA Software Publishers Association
SPC Stored Program Control
SPI Service Provider Interface
SPX Synchronous Packet Exchange (Novell,Inc.)
SQE Signal Quality Error
SQL Structured Query Language
SRB Source Route Bridging
SS Switching System
SS7 Signaling System No. 7
SSA Serial Storage Architecture (IBM Corp.)
SSCP System Services Control Point (IBM Corp.)
SSCP/PU System Services Control Point/Physical Unit (IBM Corp.)
SSG Service Selection Gateway
SSL Secure Sockets Layer
SSP Service Switching Point
SSP Switch-to-Switch Protocol
ST Somple Twist
STDM Statistical Time Division Multiplexing
STP Shielded Twisted Pair
STP Signal Transfer Point
STP Spanning Tree Protocol
STS Shared Telecommunications Services
STS Synchronous Transport Signal
STX Start of Transmission
SUBT Subscriber Terminal
SVC Switched Virtual Circuit
SWC Serving Wire Center
SYNTRAN Synchronous Transmission
SYSGEN System Generation
SWAP Shared Wireless Access Protocol
