Glossary

Term	Main definition
S-CDMA	Synchronous Code Division Multiplex Access Hits - 771
S-Video	Separate Video - video interface carrying separate, synchronised signals for luminance (Y) and chrominance (C) information Hits - 769
S/I	Signal to Interference Hits - 762
S/N	Signal to Noise Ratio Hits - 840
S/PDIF	Sony/Philips Digital Interconnect Format Hits - 766
SA	Spatial Activity Hits - 828
SACD	Super Audio Compact Disc Hits - 771
SAM	Super-rate Adapter Module Hits - 812
SAP	Second Audio Program / Service Access Point Hits - 825
SAR	Segmentation And Reassembly Hits - 767
SAW	Surface Acoustic Wave Filter Hits - 743
SB	Signal Battery Hits - 828
SBCA	Satellite Broadcasting and Communications Association Hits - 762
SBS	Satellite Business Systems Hits - 770
SC-FDMA	Single Carrier Frequency Division Multiple Access Hits - 850
SCAI	Switch to Computer Applications Interface Hits - 813
SCART	Syndicat des Constructeurs d'Appareils Radior Hits - 787
SCC	System Control Computer Hits - 754
SCC3	System Control Card 3 Hits - 802
SCD	Specification Control Document, Single Channel Decoder Hits - 769
SCE	Service Creation Environment Hits - 843
SCI	Scalable Coherent Interface Hits - 775
SCM	Single Carrier Modulation Hits - 782
SCN	Serial Control Network Hits - 832
SCO	Synchronous Connection Oriented Hits - 803
SCP	Service Control Point Hits - 790
SCPC	Single Channel Per Carrier Hits - 738
SCR	System Clock Reference / Silicon Controlled Rectifier Hits - 837
SCSI	Small Computer System Interface Hits - 753
SCT	Single Carrier Transcoder, Severe Congestion Threshold Hits - 747
SCTE	Society of Cable Telecommunication Engineers Hits - 829
SDA	Synchronous Data Adapter Hits - 786
SDB	Serial Distribution Bus Hits - 763
SDDS	Sony Dynamic Digital Sound Hits - 773
SDH	Synchronous Digital Hierarchy Hits - 937
SDI	Synchronous Data Interface Hits - 755
SDLC	Synchronous Data Link Control Hits - 802
SDP	Synchronous Data Processor Hits - 776
SDR	Satellite Digital Radio Hits - 761
SDS 56	Switched Data Services (56kbps) Hits - 766
SDSL	Single-line Digital Subscriber Line Hits - 808
SDT	Service Description Table (multiplex) (part of SI) Hits - 708
SDU	Service Data Unit Hits - 793
SDV	Switched Digital Video Hits - 742
SECAM	Sequential Colour with Memory Hits - 807
SF	Superframe Format Hits - 795
SFN	Signal Frequency Network Hits - 768
SFTP	Shielded Foil Twisted Pair Hits - 747
SGDF	Super-Group Distribution Frame Hits - 777
SHDL	Symmetrical High Speed Digital Subscriber Line Hits - 770
SHL	Studio to Headend Link Hits - 734
SHN	Self Healing Network Hits - 708
SI	System Information; Service Information; Step Index Hits - 701
SIMD	Single Instruction Multiple Data Hits - 611
SIMO	Single Input - Multiple Output Hits - 681
SIR	Sustained Information Rate Hits - 627
SISO	Single Input - Single Output Hits - 696
SLC	Subscriber Line Carrier Hits - 728
SLIC	Subscriber Line Interface Circuit Hits - 679
SLIP	Serial Line Internet Protocol Hits - 712
SLM	Signal Level Meter Hits - 680
SLS	Single Line Service Hits - 720
SM	Single Mode Hits - 706
SMATV	Satellite Master Antenna Television System Hits - 765
SMD	Surface Mount Device Hits - 744
SMDR	Station Message Detail Recording Hits - 780
SMDS	Switched Multimegabit Data Service Hits - 622
SMF	Single Mode Fibre Hits - 692
SML	Service Management Layer Hits - 728
SMPS	Switching Mode Power Supply Hits - 732
SMPTE	Society of Motion Picture and Television Engineers Hits - 861
SMR	Signal to Mask Ratio; Specialized Mobile Radio Hits - 645
SMS	Subscriber Management System Hits - 804
SMSR	Side Mode Suppression Ratio Hits - 700
SMT	Surface Mount Technology Hits - 717
SMTP	Simple Mail Transfer Protocol Hits - 722
SNA	Systems Network Architecture Hits - 726
SNAIP	Simple Network Management Protocol Hits - 741
SNG	Satellite News Gathering Hits - 757
SNMP	Simple Network Management Protocol Hits - 674
SNOC	Satellite Network Operations Center Hits - 696
SNR	Signal to Noise Ratio Hits - 698
SO	Small Outline (IC Package) Hits - 714
SOJ	Small Outline (J-lead) Hits - 727
SONET	Synchronous Optical Network Hits - 661
SOP	Small Outline Package; Standard Operating Procedure Hits - 727
SOT	Small Outline Transistor Hits - 656
SPAN	Service and Protocols for Advanced Network Hits - 608
SPB	Serial Packet Bus Hits - 726
SPC	Statistical Process Control, Super Physical Contact; Stored Program Control Hits - 644
SPE	Synchronous Payload Envelope Hits - 757
SPECTRE	Special Purpose Extra Resolution for Terrestrial Enhancements Hits - 658
SPM	Self-Phase Modulation Hits - 671
sps	symbols per second Hits - 702
SPST	Single Pole - Single Throw (switch ) Hits - 673
SQL	Structured Query Language Hits - 680
SRL	Subrate Data Link; Structural Return Loss Hits - 685
SRM	Subrate Multiplexer Hits - 675
SRS	Subrate Switch Hits - 1211
SS	Spread Spectrum; Signaling System Hits - 689