M30 通信设备综合 标准查询与下载

ITU-T G.993.5-2015 使用了甚高速数字用户环路版本2收发器的自远端串音消除(矢量)(研究组15)

Self-FEXT cancellation (vectoring) for use with VDSL2 transceivers (Study Group 15)

YD/T 2779-2014 VHF/UHF无线电管制发射机技术要求及测试方法

本标准规定了VHF/UHF频段无线电管制发射机的主要技术参数、限值要求和测试方法等内容。技术参数主要涵盖了电性能要求、杂散指标要求、电气安全要求、环境适应性要求等，以及对应的测试方法。本标准适用于VHF/UHF频段无线电管制发射机。

Technical requirements and test methods for VHF/UHF frequency band radio controlling transmitter

ITU-T SERIES L SUPP 12-2014 ITU-T L.1300.补充对安装在设备的进口和出口板管的实验研究(研究组5)

Supplement 12 to ITU-T L-series Recommendations describes experimental studies on plates and ducts installed at equipment inlets and outlets based on Recommendation ITU-T L.1300.More precisely,this Supplement provides a problem description of practical solutions for correcting airflow direction for equipment,highlighting, at the same time,examples of practical solutions as well as experimental results.

ITU-T L.1300 – Supplement on experimental studies on plates and ducts installed at equipment inlets and outlets (Study Group 5)

ITU-T SERIES L SUPP 11-2014 ITU-T L.1300.补充验证试验和可行性研究能源和空间的高密度数据中心高效的信息通信技术(ICT)设备冷却系统(研究组5)

Supplement 11 to the ITU-T L series of Recommendations refers to the best practices defined in Recommendation ITU-T L.1300.More precisely, this Supplement provides firstly an introduction to a verification test and feasibility study of energy and space efficient cooling systems for data centres with high density ICT devices.Secondly,trial calculations of energy conservation benefits with respect to the application to a full-scale data centre are then reported.

ITU-T L.1300 – Supplement on a verification test and feasibility study of energy and space efficient cooling systems for data centres with high density ICT devices (Study Group 5)

ITU-T P.1311-2014 确定多个并发的清晰度的方法(研究组12)

Recommendation ITU-T P.1311 describes a method for conducting a listening test that measures the intelligibility of multiple concurrent talkers in a teleconference.This Recommendation specifies how to conduct such a test, giving detail on stimulus design,creation of source material,selection of test conditions,calibration, selection and training of listeners,test administration,and reporting of results.This Recommendation includes an electronic attachment containing American English source material referenced in Appendix I.

Method for determining the intelligibility of multiple concurrent talkers (Study Group 12)

YD/T 1538-2014 数字移动终端音频性能技术要求及测试方法

本标准规定了数字移动终端分别接入GSM、TD-SCDMA、WCDMA或cdma2000等四种制式进行语音通信时的音频特性技术要求和测试方法。本标准适用于接入公众数字移动网络的数字移动终端，包含但不限于具备上述四种制式中的一种或几种。

Technical requirements and test methods for acoustics performance of digital mobile terminal

YD/T 2721-2014 地球静止轨道卫星固定业务的链路计算方法

本标准规定了地球静止轨道卫星固定业务的链路计算方法，包括卫星通信链路的组成、链路计算描述、链路计算方法，并给出了计算中部分参数的参考取值和链路计算示例。本标准适用于在地球静止轨道卫星直接转发式转发器上工作的数字制式卫星固定业务，卫星广播业务可参照本标准。本标准适用于C、Ku频段，其他频段可参考使用。

Method of linkbudget for fixed-satellite service operating with a satellite in geostationary-satellite orbit

ETSI TS 136 124-2014 LTE. 演进的通用陆地无线接入 (E-UTRA). 移动终端和附属设备的电磁兼容性 (EMC) 要求 (V12.1.0; 3GPP TS 36.124版本12.1.0, 版本12)

LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Electromagnetic compatibility (EMC) requirements for mobile terminals and ancillary equipment (V12.1.0; 3GPP TS 36.124 version 12.1.0 Release 12)

CFR 47-15.407-2014 电信. 第15部分:无线电频率. 第E子部分:未经授权的国家信息基础设施设备. 第15.407节:通用技术要求.

(i) For an outdoor access point operating in the band 5.15–5.25 GHz, the maximum conducted output power over the frequency band of operation shall not exceed 1 W provided the maximum antenna gain does not exceed 6 dBi. In addition, the maximum power spectral density shall not exceed 17 dBm in any 1 megahertz band. If transmitting an- tennas of directional gain greater than 6 dBi are used, both the maximum conducted output power and the maximum power spectral density shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6 dBi. The maximum e.i.r.p. at any elevation angle above 30 degrees as meas- ured from the horizon must not exceed 125 mW (21 dBm).

Telecommunication. Part15:radio frequency devices. Subpart E:Unlicensed National Information Infrastructure Devices. Section15.407:General technical requirements.

ITU-R SM.1413-3-2014 无线电通信数据字典的通知和协调目的

The aim of the Radiocommunication Data Dictionary (RDD) is to improve the exchange of notification and coordination data between administrations and between administrations and the Radiocommunication Bureau (BR)

Radiocommunication Data Dictionary for notification and coordination purposes

YD/T 2690-2014 宽带速率测试方法.移动宽带接入

本标准规定了在移动宽带接入场景下，对移动终端接入速率进行测试所涉及的测试指标、测试范围、测试场景、测试仪表以及测试的内容和方法。本标准适用于移动宽带用户的接入分组数据网速率的测量。移动宽带接入技术主要包括TD-SCDMA、WCDMA、cdma2000 HRPD、TD-LTE、LTE FDD等。运营商提供给公众的WLAN接入场景也适用于本标准。

Test methods for connection speed in broadband networ.Mobile broadband access

YD/T 2691-2014 宽带速率测试方法.用户上网体验

本标准规定了互联网业务用户使用上网浏览、网络视频和网络下载三种互联网业务的测试指标、测试方法及测试数据的处理方法。本标准适用于互联网服务提供商通过固定宽带向互联网业务用户提供的业务。

Test methods for connection speed in broadband network.User experience of internet surfing

YD/T 965-2013 电信终端设备的安全要求和试验方法

Safety requirements and test methods for telecommunication terminal equipment

IEEE Std C62.36-2014 低压数据电路、通信电路和信号传输电路用电涌保护器件的试验方法

Standard Test Methods for Surge Protectors Used in Low-Voltage Data, Communications, and Signaling Circuits

ITU-R F.1497-2-2014 工作于55.78-66 GHz频段的固定无线系统的射频信道安排

This Recommendation specifies radio-frequency channel arrangements for fixed wireless systems (FWS)using TDD (time division duplex) or FDD (frequency division duplex) with channel separations of 3.5, 7, 14,28, 30, 50 and 56 MHz in the range 55.78-66 GHz, the portions of which have been identified for use forhigh-density applications in the fixed service (HDFS).

Radio-frequency channel arrangements for fixed wireless systems operating in the band 55.78-66 GHz

DIN EN 300019-2-4:2014 设备工程(EE).电信设备的环境条件和环境试验.第2-4部分:环境试验规范.非抗大气影响场所用固定设备(英文版本EN 300019-2-4 V2.3.1 (2013-08)的核准本作为德国标准)

Environmental Engineering (EE) - Environmental conditions and environmental tests for telecommunications equipment - Part 2-4: Specification of environmental tests; Stationary use at non-weatherprotected locations (Endorsement of the English version EN 30

DIN EN 300019-2-2:2014 环境工程(EE).电信设备环境条件和环境试验.第2-2部分:运输环境试验规范.运输(英文版本EN 300 019-2-2 V2.3.1(2013-04)的核准本作为德国标准)

Environmental Engineering (EE) - Environmental conditions and environmental tests for telecommunications equipment - Part 2-2: Specification of environmental tests; Transportation (Endorsement of the English version EN 300 019-2-2 V2.3.1 (2013-04) as Germ

YD/T 2668-2013 电信网络异常流量检测与控制技术要求

Technical requirements for detection and control of abnormal traffic in telecommunication networks

ANSI/ATIS 0600010-2014 温度、湿度和高度标准

Temperature, Humidity, & Altitude Standards

YD/T 1884-2013 信息终端设备声压输出限值要求和测量方法

Information terminal equipment sound pressure output limit requirements and measurement methods