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ADM Add-Drop Multiplexer 分插复用器
AI Adapted Information 适配信息
AIS Alarm indication Signal 告警指示信号
AP Access Point 接入点
APId Access Point Identifier 接入点识别符
APS Automatic Protection Switching 自动保护倒换
ATM Asynchronous Transfer Mode 异步转移模式
AU Asynchronous Unit 管理单元
AU-n Administrative Unit , level n
管理单元，第n级
AUG Administrative Unit Group 管理单元组
BER Bit Error Ratio 比特误码率
BBER Background Block Error Ratio 背景块误码率
BIP Bit Interleaved Parity 比特间插奇偶校验
C Connection function 连接功能
CI Characteristic Information 特征信息
CK Clock 时钟
CM Connection Matrix 连接矩阵
CMISE Common Management Information Service
公用管理信息服务单元
CP Connection Point 连接点
CSES Consecutive Severely Errored Seconds
连续严重误码秒
D Data 数据
DCC Data Communications Channel 数据通信通路
DS Defect Second 缺陷秒
DEG Degraded 劣化
DEGTHR Degraded Threshold 劣化门限
DXC Digital Cross Connect 数字交叉连接
EI2 Electrical interface signal 2 048 kbit/s 2048kbit/s电接口信号
E31 Electrical inte4ace signal 34 368 kbit/s 34368kbit/s电接口信号
E4 Electrical inte4ace signal 139264kbit/s电接口信号
EBC Errored Block Count 误码块计数
EDC Error Detection Code 误码检测码
EDCV Error Detection Code Violation 误码检测码违倒
EMF Equipment Management Function 设备管理功能
EQ Equipment 设备
ES Electrical Section 电气段，电段
ESl Electrical Section ,levell STM-1电段
ES Errored Second 误码秒
Eq Recommendation G.703 type G.703类型电接口，
?electrical signal, q表示比特率等级
ExSL Expected Signal label 期望信号标识
ExTT Expected Trace Identifier 期望踪迹识别符
F_B Far-end Block 远端块
F_DS Far-end Defect Second 远端缺陷秒
F_EBC Far-end Errored Block Count 远端误码块计数
FAS Frame Alignment Signal 帧定位信号
FM Fault Management 故障管理
FOP Failure Of Protocol 协议失效
FS Forced Switch 强制倒换
FS Frame Start signal 帧起始信号
HO Higher Order 高阶
HOA Higher Order Assembler 高阶组装器
HOI Higher Order Interface 高阶接口
HOVC Higher Order Virtual Container 高阶虚容器
HP Higher order Path 高阶通道
HPA Higher order Path Adaptation 高阶通道适配
HPC Higher order Path Connection 高阶通道连接
HPOM Higher order Path Overhead Monitor
高阶通道开销监视
HPP Higher order Path Protection 高阶通道保护
HPT Higher order Path Termination 高阶通道终接
HSUT Higher order path Supervisory 高阶通道监视未装载终接
HTCA Higher order path Tandem 高阶通道串联连接适配
HTCT Higher order path Tandem 高阶通道串联连接终接
HTCM Higher order path Tandem
高阶通道串联连接监视
ID Identifier 识别符
IF In Flame state 输入帧状态
LO Lower Order 低阶
LOA Loss Of Alignment ; generic 定位丢失(一般指LOF、LOM、
LOF Loss Of Frame 帧丢失
LOI Lower Older Interface 低阶接口
LOM Loss Of Multi frame 复帧丢失
LOP Loss Of Pointer 指针丢失
LOS Loss of Signal 信号丢失
LOVC Lower Order Virtual Container 低阶虚容器
LP Lower order Path 低阶通道
LPA Lower order Path Adaptation 低阶通道适配
LPC Lower older Path Connection 低阶通道
LPOM Lower order Path Overhead Monitor 低阶通道开销监视
LPP Lower order Path Protection 低阶通道保护
LPT Lower order Path Termination 低阶通道终接
LSUT Lower older path Supervisory 低阶通道监视未装载终接
LTCA lower order path Tandem 低阶通道串联连接适配
LTCT Lower order path Tandem 低阶通道串联连接终接
LTCM Lower order path Tandem 低阶通道串联连接监视
LTI Loss of all incoming Timing references 输入定时基准全丢失
MC Matrix Connection 矩阵连接
MCF Message Communications Function 消息通信功能
MI Management Information 管理信息
MP Management Point 管理点
MRITE Maximum Relative Time Interval Error
最大相对时间间隔误差
MS Manual Switch 人工倒换
MS Multiplex Section 复用段
MSA Multiplex Section Adaptation 复用段适配
MSn Multiplex Section layer , STM-N复用段层，n=1,4,16
MSnP Multiplex Section protection STM-N复用段保护子层，
MSOH Multiplex Section Overhead 复用段开销
MSP Multiplex Section protection 复用段保护
MST Multiplex Section Terminatio 复用段终接
MTIE Maximum Time Interval Error
最大时间间隔误差
N_B Near-end Block 近端块
N_BBE Near-end Background Block Error
近端背景块误码
N_DS Near-end Defect Second 近端缺陷秒
N_EBC Near-end Errored Block Count 近端误码块计数
NC Network Connection 网络连接
NDF New Data Flag 新数据标识
NE Network Element 网络单元，网元
NEF Network Element Function 网元功能
NNI Network Node Interface 网络节点接口
NU National Use 国内使用
OAM Operation , Administration
操作、管理与维护
ODI Outgoing Defect Indication 输出缺陷指示
OEI Outgoing Error Indication 输出误码指示
OFS Out-of-Flame Second 帧失步秒
OHA OverHead Access 开销接入
OOF Out Of Frame 帧失步
OS Optical Section 光段
OSn Optical Section layer， STM-N光段层，n
= l,4, 16
OW Order Wire 公务
PI2s 2048kbit/s PDH path layer 具有G.704的125μs同步帧
with synchronous 125μs 结构的2048kbit/s
PDH通道层
PI2x 2048kbit/s layer (transparent) 2048kbit/s(透明)层
P31e 34368kbit/s PDH path layer 带有4个准同步8448kbit/s
with 4 plesiochronous 8448kbit/s 的34368kbit/sPDH通道层
P31s 34368kbit/s PDH path layer 具有G.832的125μs同步帧
with synchronous 125μs 结构的34368kbit/s PDH通道
P31x 34368kbit/s layer (transparent ) 34368kbit/s(透明)层
P4e 139 264 kbit/s POH path layer 带有4个准同步34368kbit/s
with 4 plesiochronous 34 368kbit/s 的139264kbit/sPDH通道层
P4s 139264kbit/s PDH path layer 具有G.832的125μs同步帧
with plesiochronous 125μs 结构的139264kbit/s PDH
frame structure according to G.832 通道层
P4x 139264kbit/s layer (transparent) 139264kbit/s(透明)层
PDH Plesiochronous Digital Hierarchy 准同步数字体系
PLM Payload Mismatch 净荷失配
PPI PDH Physical Interface PDH物理接口
PJC Pointer Justification Count 指针调整计数
PJE Pointer Justification Event 指针调整事件
PM Performance Monitoring 性能监视
POH Path Over Head 通道开销
Pq PDH path layer, PDH通道层，比特率等级为
PRC Primary Reference Clock 主基准时钟
PS Protection Switching 保护倒换
PSC protection Switch Clock 保护倒换计数
PSD Protection Switch Duration 保护倒换时间
PSE Protection Switch Event 保护倒换事件
PSS Protection Switch Second 保护倒换秒
PTR Pointer 指针
RDI Remote Defect Indication 远端缺陷指示
REI Remote Error Indication 远端误码指示
RI Remote Information 远端信息
RP Remote Point 远端点
RS Regenerator Section 再生段
RSn Regenerator Section STM-N再生段，
RSOH Regenerator Section OverHead 再生段开销
RST Regenerator Section Termination 再生段终接
RxSL Received Signal Label 接收信号标识
RxTI Received Trace Identl8er 接收踪迹识别符
S12 VC-12 path layer VC-12通道层
S12D VC-12 tandem protection sublayer VC-12串联连接子层
S12P VC-12 path protection sublayer VC-12通道保护子层
S3 VC-3 path layer VC-3通道层
S3D VC-3 tandem connection sublayer 使用G.707附录D(选项2)定
using TCM definition according annex 义的TCM的VC-3串联连接
D/G.707 (option 2) 子层
S3P VC-3 path protection sublayer VC-3通道保护子层
S3T VC-3 tandem connection sublayer 使用G.707附录C(选项1)
using TCM definition according annex 定义的TCM的VC-3串联连
C/G. 707 (option l) 接子层
S4 VC-4 path layer VC-4通道层
S4D VC-4 tandem connection sublayer 使用G.707附录C(选项2)
using TCM definition according annex 定义的TCM的VC-4串联连
D/G. 7G7 (option 2) 接子层
S4P VC-4 path protection sublayer VC-4通道保护子层
S4T VC-4 tandem connection sublayer 使用G.707附录C(选项1)
using TCM de8nition according annex 定义的TCM的VC-4串联连
C/G.707 (option l) 接子层
SD Signal 信号劣化
SDH Synchronous Digital Hierarchy 同步数字体系
SDXC Synchronous Digital 同步数字体系交叉连接
hierarchy Cross-Connect
SEC SDH Equipment Clock SDH设备时钟
SEMF Synchronous Equipment 同步设备管理功能
SES Severely Errored Second 严重误码秒
SETG Synchronous Equipment Timing Generator 同步设备定时发生器
Timing Physical Interface
SEIPI Synchronous Equipment 同步设备定时物理接口
SETS Synchronous Equipment Timing Source 同步设备定时源
SF Signal Fail 信号失效
Sk Sink (信息、信号)宿
SmD D VC-m (m=11,12,2,3)tandem connection VC-m串联连接子层
Sublayer (m = 11, 12,2,3)
SmDm Lower Older Tandem Connection 低阶串联连接非插入监视
Non-Intrusive Monitor
Smm VC-m (m=11,12,2,3)path layer VC-m通道层非插入监视
non-intrusive monitor (m =11, 12,2,3)
SmP VC-m (m=11,12,2,3)path VC-m通道保护子层
Sms VC-m(m=11,12,2,3)path layer VC-m通道层监视未装载
supervisory-unequipped (m = 11, 12,2,3)
Sn higher order VC-n layer (n=3,4) 高阶VC-n(n=3,4)
SnD VC-n(n=3,4) tandem connection 使用G.707附录D(选项2)定
sublayer using TCM de8nition 义的TCM的VC-n(n=3,4)串
according annex D/G. 707(option 2) 联连接子层
SnDm Higher Older Tandem Connection
高阶串联连接非插入监视
Snm VC-n(n=3,4)path layer VC-n(n=3,4)通道层非插入监视
SnP VC-n(n=3,4) path protection sublayer VC-n(n=3,4)通道保护子层
Sns VC-n (n=3,4) path layer VC-n(n=3,4)通道层监视未装载
SnT VC-n (n=3,4) tandem connection 使用G.707附录C(选项1)定
sublayer using TCM definition 义的TCM的VC-n(n=3,4)串
according annex C/G. 707(option l) 联连接子层
SnTm Higher Order Tandem Connection
高阶串联连接非插入监视
SNC Sub-Network Connection 子网连接
SNC/I inherently monitored Sub-Network
固有监视子网连接保护
SNC/N Non-intrusively monitored Sub-Network 非插入监视子网连接保护
SNC/S Sublayer (tandem connection ) monitored 子层(串联连接)监视子
Sub-Network Connection protection 网连接保护
So Source (信息、信号)源
SOH Section Overhead 段开销
SPI SDH Physical Interface SDH物理接口
SPRING Shared Protection Ring 共享保护环
SSD Sewer Signal Degrade 严重信号劣化
SSF Server Signal Fail 严重信号失效
SSM Synchronization Status Message 同步状态消息
SSU Synchronization Supply Unit 同步供给单元
STM Synchronous Transport Module 同步传送模块
TCM Tandem Connection Monitor 串联连接监视
TCP Termination Connection Point 终接连接点
TD Transmit Degrade 发送劣化
TF Transmit Fall 发送失效
TFAS trail Trace identifier 路径踪迹识别符帧定位信号
Frame Alignment Signal
TI Timing Information 定时信息
TTM Trace Identi8er Mismatch 踪迹识别符失配
IMN Telecommunications Management Network
电信管理网
IP Timing Point 定时点
TF Transmit Termination Point mode 终接点模式
IS Time Slot 时隙
TSD Trail Signal Degrade 路径信号劣化
TSF Trail Signal Fail 路径信号失效
TSL Trail Signal label 路径信号标识
TT Trail Termination function 路径终接功能
TTF Transport Termination Function 传送终接功能
TTs Trail Termination supervisory function 路径终接监视功能
TTI Trail Trace Identifier 路径踪迹识别符
TTP Trail Termination Point 路径终接点
TU Tributary Unit 支路单元
TU-m Tributary Unit , level m 支路单元，m等级
TUG Tributary Unit Group 支路单元组
TUG-m Tributary Unit Group , level m 支路单元组，m等级
TxSL Transmitted Signal Label 发送信号标识
TxTI Transmitted Trace Identifier
发送踪迹识别符
UNEQ UNE quipped 未装载
UNI User Network Interface 用户网络接口
USR User channels 用户通路
VC Virtual Container 虚容器
VC-n Virtual Container , level n 虚容器，n等级
VP Virtual Path 虚通道
W Working 主用，工作
A2 原子功能符号缩略语
EI2_TT 2048kbit/s Electrical hlte4ace 电接口信号终接
E12/P12x_A 2048 kbit/s Electrical Interface 2048kbit/s电接口信号/
Signal to 2048 kbit/s Adaptation 2048kbit/s适配
E31_TT 34 368 kbit/s Electrical 34 368 kbit/s 电接口
Interface Signal Trail Termination 信号终接
E31/P31x_A 34368 kbit/s Electrical 34 368 kbit/s
电接口
interface Signal to 34 368 信号/34368kbit/s适配
E4_TT 139 264 kbit/s Electrical 139 264 kbit/s电接口信号终
E4/P4x_A 139 264 kbit/s Electrical 139 264 kbit/s电接口信号终
Inte4ace Signal to 139 接/139264kbit/s适配
264kbit/s Adaptation
ES1/RS1_A STM-l Electrical Section to STM-l电段/STM-1再生
Regeneratoe Section Adaptation 段适配
ES1_TT STM-1Electrical Section Trail Termination STM-l电段终接
MS1_TT STM-l Multiplex Section Trail Termination STM-l复用段终接
MS1/S4_A STM-1 Multiplex Section to VC-4 higher STM-l复用段/VC-4通
order path Adaptation 道适配
MS1/SD_A STM-1 Multiplex Section to Signal STM-l复用段/信号劣
Degrade Adaptation 化适配
MSI/OW_A STM-1 Multiplex Section to STM-l复用段/公务通信适配
Older-wire Adaptation
MS1/DCC_A STM-1 Multiplex Section to Data STM-l复用段/DCC通道适配
MSn_TT STM-N Multiplex Section STM-N复用段终接
MSn/MSnP_A Multiplex Section to Multiplex STM-N复用段/STM-N复用
Section Protection Adaptation 段保护适配
MSnP_C STM-N Multiplex Section STM-N复用段保护连接
Protection Connection
MSnP-TT STM-N Multiplex Section Protection STM-N复用段保护终接
MSn/S4_A STM-N Multiplex Section to VC-4 STM-N复用段/VC-4通道适
MSn/SD_A STM-N Multiplex Section to STM-N复用段/信号劣化适配
Signal Degrade Adaptation
MSn/OW_A STM-N Multiplex Section to STM-N复用段/公务通信适配
Order-wire Adaptation
MSn/DCC_A STM-N Multiplex Section to Data STM-N复用段/DCC通道适配
OSn_TT STM-N( Optical Section Trail Termination STM-N光段终接
OSn/RSn_A Optical Section to Regenerator STM-N光段/STM-N再
Adaptation 生段适配
P4x-n 139 264 kbit/s Signal Trail Termination 139 264
kbit/s 终接
2 048 kbit/s Signal Adaptation /2048kbit/s适配
RS1_TT STM_1 Regeneration Section Termination STM-1再生段终接
RSn_TT STM-N Regeneration Section Termination STM-N再生段终接
RSn/MSn_A Regeneration Section to STM-N再生段/STM-N复
Multiplex Section Adaptation 用段适配
BSn/User_A Regeneration Section to User STM-N再生段/用户
Channel Adaptation 通道适配
RSn/OW_A Regeneration Section to STM-N再生段/公务通信适配
RSn/DCC_A Regeneration Section to Data STM-N再生段/DCC通道
Communications Channel Adaptation 适配
SI2_ TT VC-12 lower order path Trail Termination VC-12通道终接
SI2/PI2x_A VC-12 lower order path to VC-12通道/2048kbit/s
2 048 kbit/s signal Adaptation 信号适配
SI2/S 12P_A VC-12 lower order path to VC-12通道/VC-12
VC-12 path Protection Adaptation 通道保护适配
SI2P-C VC-12 path Protection Connection VC-12通道
保护连接
SI2P_TT VC-12 path Protection Trail Termination VC-12通道保护终接
S3_TT VC-3 path Trail Termination VC-3通道终接
S3/S3P_A VC-3 path to VC-3 path . VC-3通道/VC-3
Protection Adaptation 通道保护适配
S3/P3Ix_A VC-3 path to 34 368kbit/s VC-3通道/34368
signal Adaptation kbit/s适配
S3P_C VC-3 path Protection Connection VC-3通道保护连接
S3P_TT VC-3 path Protection Trail Termination VC-3通道保护终接
S4_C VC-4 path connection VC-4通道连接
S4_TT VC-4 path Trail Termination VC-4通道终接
S4P_TT VC-4 path Protection Trail Termination VC-4通道保护终接
S4/S12_A VC-4 path to VC-4 path Adaptation VC-4通道/VC-12通道适配
S4/S3_A VC-4 path to VC-3 path Adaptation VC-4通道/VC-3通道适配
S4/S4P_A VC-4 path to VC-4 path VC-4通道/VC4
protection Adaptation 通道保护适配
S4P_C VC-4 path Protection Connection VC-4通道保护连接
S4D_TT VC-4 path Tandem Connection VC-4串联连接终接
S4Dm_TT VC-4 path Tandem Connection VC-4串联连接非插入监视
S4D/S4_A VC-4 path Tandem Connection VC-4串联连接/VC-4
Adaptation 通道适配
S4m_T VC-A path Non-Intrusive Monitor VC-4通道非插入监视
S4s_TT VC-4 path Supervisory-Unequipped VC-4通道监视未装载终接
Termination
S4Tm_TT VC-4 path Tandem Connection VC-4串联连接非插入监视
S4T_TT VC-4 path Tandem Connection VC-4串联连接监视终接
S4T/S4_A VC-4 path Tandem Connection VC-4串联连接适配
S4/User_A VC-4 path to User path Adaptation VC-4通道/用户通道适配
Sm_C VC-m lower order path Connection 低阶通道连接
SmD_TT VC-m low order path Tandem Connection 低阶通道串联连接终接
Trail Termination
SmD/Sm_A VC-m lower order path Tandem Connection 低阶通道串联连接/
Adaptation 低阶通道适配
SmDm_TT VC-m lower order path Tandem Connection 低阶通道串联连接
Non-Intrusive Monitor 非插入监视
Smm_TT VC-m lower older path Non- 低阶通道非插入监视
Sms_TT VC-m lower order path Supervisory- 低阶通道监视未装载终接
artificial satellite 人造卫星
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