办公室光信道用光连接器检测

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GB/T 16678.3-1996信息处理系统 光纤分布式数据接口(FDDI) 第3部分;令牌环物理层媒体相关部分（PMD)

本标准为光纤分布式数据接口（FDDI）规定了物理层媒体相关部分（PMD）的要求。 FDDI使用光纤作为传输媒体，为计算机和外围设备之间提供一个高带宽（100Mbit/s）的通用互连。FDDI可配置来支持大约80Mbit/s（10Mbyte/s）的持续传送速率，它可能不能满足所有无缓冲的高速设备的响应时间要求。FDDI建立分布于几千米的许多FDDI结点之间的连接。FDDI的默认值是按1000条物理链路和总长为200Km的光纤通路计算的。 FDDI由以下几部分组成： 物理层（PL），它分成两个子层： 物理层媒体相关部分（PMD），为FDDI网络结点间提供数字基带点对点通信手段。PMD应 提供在结点间传送一个经适当编码的比特流所需的各种服务。PMD规定了媒体接口连 接器（MIC）两侧符合 FDDI站及光缆装置要求的互连点。PMD由下列部分组成： --使用62.5/125um光缆和光旁路开关的光缆装置的光功率预算。 --MIC插座的机械匹配要求，包括键琐特性。 --62.5/125um光缆要求。 --PMD各PHY和SMT提供的服务。 物理层协议（PHY），它在PMD和数据链路层（DLL）之间提供连接。PHY对上游编码比特 数据流建立时钟同步，并把到达的代码比特流解码成高层使用的等效符号流。PHY在数据 及控制指示符的符号和代友比特之间提供了编码和解码，提供媒体调节和初始化，提供入 和出代码比特的时钟同步，以及按去往或来自较高层信息传输要求提供八位位组边界定 界。在接口媒体上待发送的信息由PHY编码成为组成的传输代码。 数据链路层（DLL），它控制媒的访问和帧校验序列的生成和验证，以确保有效数据正确地交付给其他导。在FDDI网络中，DLL也关心设备地址的生成和识别以及同层对同层的联系。对于本标准而言，引用DLL是通过媒体访问控制（MAC）实体来进行的，此实体是DLL低子层。 站管理（SMT）<上标1）>，它在结点级上提供必要的控制，以便管理各种不同的FDDI层中正在进行的进程，使得结点可以在令牌环上协调地工作。SMT提供诸如配置管理的控制、故障隔离与恢复，以及过程调度等服务。 本标准是GB/T16678.1的支持文件，应结合该标准一起阅读。 SMT文件应作为支持FDDI结点和网络配置的参考信息。 本系列标准规定了必要的接口、功能和操作，以确保在符合FDDI的实现之间的互操作性。本标准是一种功能描述，与之相符合的实现可以利用任何不违反互操作性的设计技术

GB/T 17564.4-2009电气元器件的标准数据元素类型和相关分类模式.第4部分:IEC标准数据元素类型和元器件类别基准集

GB/T 17564的本部分在公共字典内规定: ——电工设备和系统用电气元器件和材料的数据元素类型定义;——元器件类别及相关分类模式的定义;这些定义与电气元器件(包括电子、机电元器件和电工设备及系统中用的材料)有关。本部分的目的是用下列方式提供唯一标识的数据元素类型集：——定义的内容准确无歧义;——规定的值格式;——非定量数据元素类型的规定值域。元器件分类模式、元器件类别定义(通过特定数据元素类型将相关和有效的特性特征分配给每类元器件)用来准确元歧义定义数据元素类型并且使整个数据元素类型集可管理。本部分的数据元素类型集预定用于计算机化系统进行元器件选择与元器件管理、零部件列表处理以及计算机辅助设计、制造和测试。

GB/T 20299.2-2006建筑及居住区数字化技术应用.第2部分;检测验收

本部分规定了建筑及居住区数字化技术应用的检测内容、方法和验收要求等，包括通信系统、信息系统与监控系统以及支持这些系统工程的基础设施（包括：信息网络平台、综合布线系统、电源与接地、环境、机房系统、基础系统集成等）的检测验收。 本部分适用于对建筑及居住区数字化技术应用系统的功能与质量的第三方检测，相应的改扩建系统和其他应用项目可以参照使用。

GB/T 37172-2018接入网设备测试方法 EPON系统互通性

本标准规定了传输速率为千兆比(1 G)和万兆比(10 G)的基于以太网方式的无源光网络［EPON］系统的互通性测试方法，包括EPON基本功能互通性、业务承载相关功能互通性、操作管理和维护功能互通性的测试方法。本标准适用于FTTH/FTTO场景下的EPON设备。FTTB场景下的EPON设备也可参考使用。

GB 50311-2016综合布线系统工程设计规范

本规范适用于新建、扩建、改建建筑与建筑群综合布线系统工程设计。

NB/T 35042-2014水力发电厂通信设计规范

本规范适用于新建的大、中型水电厂和抽水蓄能电厂的通信设计。本规范规定了水电厂通信系统设计的基本原则及主要技术要求。

YD/T 1034-2013接入网名词术语

本标准规定了在接入网功能结构、系统和设备、接入网技术中出现的基本名词术语。本标准适用于接入网研究、开发、运行和维护中名词术语的解释、翻译和应用。

YD/T 1636-2007光纤到户(FTTH)体系结构和总体要求

本标准规定了光纤到户（RTTH，Fiber To The Home）的体系架构及总体要求，包括FTTH系统的体系架构、网络拓扑、支持的业务类型、实现技术与要求、性能指标要求以及运行和维护要求等，概要地规范了FTTH用光缆及线路辅助设施的基本要求。 本标准适用于在我国公用电信网中FTTH用户接入的网络（包括系统设备、线路及相关配套设施），专用电信网亦可参照本标准。

YD/T 1949.1-2009接入网技术要求.吉比特的无源光网络(GPON).第1部分:总体要求

本部分规定了传输汇聚(TC)层采用GPON封装模式(GEM)的吉比特的无源光网络(GPON)系统的参考模型、设备功能结构、光网络要求、业务承载能力性能指标、业务接口类型、功能与协议、保护与安全、操作维护管理以及设备电气安全等方面的要求。本部分适用于公众电信网环境下的GPON设备，专用电信网也可参照使用。

YD/T 2740.1-2014无线通信室内信号分布系统 第1部分:总体技术要求

本部分规定了无线通信室内信号分布系统(简称室内分布系统)的组建总体原则、网络结构、网络性能、总体技术要求、设备及工程安装设计技术要求等。本部分适用于共用或独立建设无线通信室内分布系统，包括GSM、cdma2000、TD-SCDMA、WCDMA、cdma2000 HRPD、无线接入、集群、数字多媒体广播等信号的室内接入覆盖，其它无线室内分布系统也可参考本部分。

YD 5092-2014波分复用(WDM)光纤传输系统工程设计规范

《波分复用(WDM)光纤传输系统工程设计规范》(以下简称“本规范”)适用于单纤单向开放式粗波分复用系统和C波段单纤单向开放式密集波分复用系统的工程设计。当本规定与有关标准(规范)相矛盾时,应按标准(规范)的相关规定办理。在特殊条件下,执行本规范中的个别条款有困难时,应充分论述理由,提出采取措施的报告,呈主管部门审批。

ISO/IEC 13961-2000信息技术 可伸缩相干接口(SCI)

This standard will encompass two levels of interface, defining operation overdistances less than 10 m. The physical layer will specify electrical, mechanical, and thermalcharacteristics of connectors and cards. The logical level will describe the address space,data transfer protocols, cache coherence mechanisms, synchronization primitives, control andstatus registers, and initialization and error recovery facilities.

ITU-R BT.799-4-2007接口在525线和625线电视系统的数字分量视频信号工作在4:4:4级推荐601

This Recommendation covers the data structure and dual link serial interface for 525/625-line digital signalsas defined in Recommendation ITU-R BT.601-5.

ITU-R REPORT BT.1088-2-2009在电视系统中525条和625条数字视频信号的接口

Readers of this Report should be aware that the text in this Report is the original text generated during the development of the SDTV digital interfaces. It is has been retained as an historic record of the digital interface development.

ITU-R REPORT SM.2130-2008无线电台的检查

This Report presents an overview of Inspections Procedures in response to Question ITU-R 225/1 regarding inspection techniques and procedures. The Question relates to how administrations proceed in planning and conducting radio station inspections. The purpose of this Report is to provide general guidelines for planning and performing inspection activities on various types of radio stations. Inspection activities often include review and verification of both technical and administrative conditions assigned to a radio station or other spectrum user. Although the term “licensed” is used throughout the document, this term can be considered here to include not only stations with licences issued by the regulatory authority, but also other authorized spectrum users (such as those operating with “licence exempt” devices like low-power radios and RF devices operating under equipment standards approval). The primary focus of this report is to consider inspections that are conducted “on-site”, by visiting the transmitter location. Included in Annexes are some specific examples in certain services, toprovide examples of howthe general guidelines can be applied. This Report should be considered a general guidance document for inspections planning.

ITU-T J.161-2007音频和视频编解码要求及使用电缆调制解调器通过有线电视网络提供双向音频服务.研究小组9

This Recommendation specifies the media aspects of the interfaces between IPCablecom clientdevices for audio and video communication. Specifically, it identifies the audio and video codecsnecessary to provide the highest quality and the most resource-efficient service delivery to thecustomer. This Recommendation also specifies the performance required in client devices tosupport future IPCablecom codecs. Additionally, this Recommendation describes a suggestedmethodology for optimal network support for codecs.1.1 Introduction and overviewThe quality of audio and video delivered over the IPCablecom architecture will depend on multiplefactors: the end device performance, the network's inherent quality, and the intelligence of thesystem resource allocation policy. This Recommendation specifies codecs and capabilitiessupporting audio and video applications, with a particular emphasis on the stringent requirements ofIP-based voice communications.Acceptable voice communications functionality imposes strict delay and packet-loss criteria on IPimplementations and will thus stress system resources, particularly if bandwidth becomes congestedor saturated. Video applications – while more forgiving to dropped packets and delay – requirebandwidth of at least an order of magnitude more than audio applications. The IPCablecomarchitecture is designed to support both voice and video applications simultaneously.Speech and video compression are evolving technologies. New algorithms are being enabled as moresophisticated and higher performing processors become available at lower cost. Additionally, thesystem infrastructure and mechanisms for allocating resources will evolve. Due to this dynamism, thepriority in designing the architecture is to define a robust system to accommodate evolvingtechnology without creating a legacy burden.Therefore, the IPCablecom philosophy is to establish cost-effective envelopes for network and deviceperformance to enable the most appropriate current technology, while allowing upgrades astechnology and market needs evolve. To address near-term market needs, this Recommendation alsospecifies codec and performance mandates to deliver the quality-of-service necessary for launchingcompetitive services.1.2 Purpose of this RecommendationThe purpose of this Recommendation is to extend the existing IPCablecom v1CodecRecommendation by introducing two new low-bit codecs, [ITU-T T.38] fax relay for reliable faxtransmission, [IETF RFC 2833] DTMF Relay for reliable DTMF transmission and metrics tomeasure voice quality. It is issued to facilitate design and field-testing leading to themanufacturability and interoperability of conforming hardware and software by multiple vendors.1.3 Phasing of requirementsThe codec requirements contained in this Recommendation cover both audio and video multimediaterminals (MTAs) and trunking gateways (media gateway). The term MTA-2 is used to define aterminal supporting video.In the initial phase of IPCablecom, MTAs are not required to support the MTA-2 requirements asdefined in clause 8. MTAs MUST support the requirements for audio terminals as defined inclauses 5, 6, 7, and 9.Support for video terminals will be REQUIRED in later phases of IPCablecom. All MTA-2s MUSTsupport the requirements defined in clause 8.

ITU-T L.66-2007(预刊)接入网络的应用中光纤测试光纤缆维护标准

This Recommendation mainly describes the maintenance band and requirements for maintenancetest light filtering (such as cut-off bandwidth, isolation and other optical characteristics) for testingin-service fibre lines without interfering with optical communication signals in access networks.L.66 provides guidance on the use of an out-of-band remote test system. An alternative approach isto monitor key parameters of the transmission equipment, such as the OLT transmitted power andthe ONU received power, but this approach is not examined in this Recommendation.

ITU-T L.68-2007负载全部高光能的光纤光缆网络用光纤光缆技术维护、监控和测试系统

This Recommendation describes the functional requirements of optical fibre cable maintenancesystems for optical fibre cable carrying a high total optical power. It applies to test equipment,optical switches for selecting a test fibre, test access modules for connecting test equipment to thecommunication line, testing optical fibre cords and optical connecting devices that are contained inthe maintenance system. It also considers safety procedures and guidelines for the maintenance ofoutside optical fibre plant carrying a high total optical power.