SAP Service Access Point 服務(wù)訪問(wèn)點(diǎn)
SAR Segmetnation and Reassembly Sublayer 分割和重新組裝子層
SAS Single Attachment Stations 單配置工作站
SCP Service Control Point 服務(wù)控制點(diǎn)
SDLC Synchronous Data Link Control 同步數(shù)據(jù)鏈路控制
SDM Space Division Multiplexing 空間分割多路復(fù)用，空分多路
SDMT Synchronized DMT 同步的DMT
SDSL Symmetric Digital Subscriber Line 對(duì)稱(chēng)數(shù)字用戶(hù)線路
SDU Service Data Unit 服務(wù)數(shù)據(jù)單元
SIF Status Information Frame 狀態(tài)信息幀
SMF Single Mode Fiber 單模光纖
SMS Service Management System 服務(wù)管理系統(tǒng)
SMT Station Management 工作站管理
SNA System Network Architecture 系統(tǒng)網(wǎng)絡(luò)體系結(jié)構(gòu)
SNI Subscriber Network Interface 用戶(hù)網(wǎng)絡(luò)接口
SRF Status Report Frame 狀態(tài)報(bào)告幀
SS7 Signaling System Number 7 7號(hào)信令
SSP Service Switching Point 服務(wù)交換點(diǎn)
STB Set-top Box 置頂盒
STP Shielded Twisted Pair 屏蔽雙絞線
STV Sprint Telecommunications Venture sprint電訊風(fēng)險(xiǎn)
SVC Switched Virtual Circuit or Signaling Virtual Circuit交換式虛電路或發(fā)信號(hào)虛電路
SAR Segmetnation and Reassembly Sublayer 分割和重新組裝子層
SAS Single Attachment Stations 單配置工作站
SCP Service Control Point 服務(wù)控制點(diǎn)
SDLC Synchronous Data Link Control 同步數(shù)據(jù)鏈路控制
SDM Space Division Multiplexing 空間分割多路復(fù)用，空分多路
SDMT Synchronized DMT 同步的DMT
SDSL Symmetric Digital Subscriber Line 對(duì)稱(chēng)數(shù)字用戶(hù)線路
SDU Service Data Unit 服務(wù)數(shù)據(jù)單元
SIF Status Information Frame 狀態(tài)信息幀
SMF Single Mode Fiber 單模光纖
SMS Service Management System 服務(wù)管理系統(tǒng)
SMT Station Management 工作站管理
SNA System Network Architecture 系統(tǒng)網(wǎng)絡(luò)體系結(jié)構(gòu)
SNI Subscriber Network Interface 用戶(hù)網(wǎng)絡(luò)接口
SRF Status Report Frame 狀態(tài)報(bào)告幀
SS7 Signaling System Number 7 7號(hào)信令
SSP Service Switching Point 服務(wù)交換點(diǎn)
STB Set-top Box 置頂盒
STP Shielded Twisted Pair 屏蔽雙絞線
STV Sprint Telecommunications Venture sprint電訊風(fēng)險(xiǎn)
SVC Switched Virtual Circuit or Signaling Virtual Circuit交換式虛電路或發(fā)信號(hào)虛電路