M34 微波通信设备 标准查询与下载

ITU-T G.992.1 CORR 2-2002 不对称数字用户线(ADSL)的收发信机 更正1

This corrigendum addresses interoperability issues identified with the operation of ADSL in the TCM-ISDN environment as defined in Annex C. The corrigendum clarifies two things to improve interoperability :

Asymmetric Digital Subscriber Line (ADSL) Transceivers Series G: Transmission Systems and Media Digital Systems and Networks Digital Sections and Digital Line System - Access Networks Corrigendum 2

BS DD IEC TS 61334-5-3:2002 使用配线载波系统的配电自动化.低层轮廓.扩展频谱适配性宽带(SS-AW)轮廓

Distribution automation using distribution line carrier systems - Lower layer profiles - Spread spectrum adaptive wideband (SS-AW) profile

BS DD IEC TS 61334-5-4:2002 使用配线配电线路载波系统的配电自动化.低层轮廓.多载波调制(MCM)轮廓

Distribution automation using distribution line carrier systems - Lower layer profiles - Multi-carrier modulation (MCM) profile

BS DD IEC TS 61334-5-5:2002 使用配线配电线路载波系统的配电自动化.低层轮廓.扩展谱带快速跳频(SS-FFH)轮廓

Distribution automation using distribution line carrier systems - Lower layer profiles - Spread spectrum-fast frequency hopping (SS-FFH) profile

ITU-T G.722.2 ANNEX B-2002 16kbit/s速率上的使用自适应多速率宽带(AMR-WB)的宽带语音编码

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Wideband coding of speech at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB) Annex B: Source Controlled Rate Operation Series G: Transmission Systems and Media Digital Systems and Networks Digital terminal equipments - Coding of analogue sign

ITU-T G.722.2 ANNEX A-2002 16kbit/s速率上的使用自适应多速率宽带(AMR-WB)的宽带语音编码

This annex details the operation of the background acoustic noise evaluation, noise parameter encoding/decoding and comfort noise generation for the AMR Wideband (AMR-WB) speech codec during Source Controlled Rate (SCR) operation.

Wideband coding of speech at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB) Annex A: Comfort noise aspects Series G: Transmission Systems and Media Digital Systems and Networks Digital terminal equipments - Coding of analogue signals by meth

ITU-T G.722.2 APPENDIX I-2002 16kbit/s速率上的使用自适应多速率宽带(AMR-WB)的宽带语音编码

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Wideband coding of speech at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB) Appendix I: Error concealment of erroneous or lost frames Series G: Transmission Sytems and Media Digital Systems and Networks Digital terminal equipments - Coding o

ITU-T G.722.2 ANNEX E-2002 16kbit/s速率上的使用自适应多速率宽带(AMR-WB)的宽带语音编码

Clause E.3 describes the 3GPP frame format (hereafter referred to as generic frame format) for the Adaptive Multi-Rate Wideband (AMR-WB) speech codec. This format shall be used as a common reference point when interfacing speech frames between different

Wideband coding of speech at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB) Annex E: Frame structure Study Group 16; Covering Note: 07/29/2003

ITU-T G.722.2 ANNEX F-2002 16kbit/s速率上的使用自适应多速率宽带(AMR-WB)的宽带语音编码

This annex specifies the packet format and capability signalling for G.722.2 Adaptive Multi-Rate Wideband (AMR-WB) [3] for usage with H.245 specification. Both the format and the capability parameters are fully compatible with the corresponding AMR-WB R

Wideband Coding of Speech at Around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB) Annex F: AMR-WB usage in H.245 Series G: Transmission Systems and Media Digital Systems and Networks Digital Terminal Equipments - Coding of Analogue Signals by Meth

ITU-T G.989.1-2001 电话线网络收发信机-基础

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Telephone Line Network Transceiver - Basics

ITU-T G.712-2001 脉冲编码调制信道的传输性能特性

This Recommendation deals with the transmission performance characteristics of PCM channels transmitted via digital transmission equipment.

Transmission performance characteristics of pulse code modulation channels = SERIES G: TRANSMISSION SYSTEMS AND MEDIA DIGITAL SYSTEMS AND NETWORKS - Digital terminal equipments - Coding of analogue signals by pulse code modulation

ITU-T G.992.1 CORR 1-2001 不对称数字用户线(ADSL)的收发信机 更正1

The value 110 WZ of the resistance in the CO splitter signature of Figure E.5lG.992.1 is replaced by 33 WZ value.

Asymmetric Digital Subscriber Line (ADSL) Transceivers Series G: Transmission Systems and Media Digital Systems and Networks Digital Sections and Digital Line System - Access Networks

ITU-T G.711 APP II-2000 声音频率的零件与元件手册

This Supplement specifies the B-ISDN signalling interworking requirements.

Pulse Code Modulation (PCM) of Voice Frequencies Appendix II: A Comfort Noise Payload Definition for ITU-T G.711 Use in Packet-Based Multimedia Communication Systems - Series G: Transmission Systems and Media Digital Systems and Networks Digital Transmiss

ITU-T G.992.1 ANX H-2000 非对称数字用户线(ADSL)收发机的附录H:一个同步对称数字用户线路(DSL)系统操作的具体要求(ssdsl)在同一电缆粘合剂在定义为ITU-T g.961附录III中作为综合业务数字网(ISDN)系列G定义:传输系统和媒体数字系统和网络数字部分和数字线路系统接入网研究组15

This annex describes those specifications that are unique to Synchronized Symmetrical Digital Subscriber Line (SSDLS) transceivers for use in the same cable binder as TCM-ISDN defined in ITU-T G.961 Appendix III.The SSDSL transmission method allows symmetric data rates in the range of 192 kbit/s to 1.6 Mbit/s with 32 kbit/s granularity using a scheme synchronized with TCM-ISDN.

Asymmetric Digital Subscriber Line (ADSL) Tranceivers Annex H: Specific Requirements for a Sychronized Symmetrical DSL (SSDSL) System Operating in the Same Cable Binder as ISDN as Defined in ITU-T G.961 Appendix III Series G: Transmission Systems and Medi

ITU-T G.992.1 ANNEX H-2000 不对称数字用户线(ADSL)的收发信机 更正1

Annex H to ITU-T Recommendation G.992.1 was prepared by ITU-T Study Group 15 (1997-2000) and approved by the World Telecommunication Standardization Assembly (Montreal, 27 September - 6 October 2000).

Asymmetric Digital Subscriber Line (ADSL) Tranceivers Annex H: Specific Requirements for a Sychronized Symmetrical DSL (SSDSL) System Operating in the Same Cable Binder as ISDN as Defined in ITU-T G.961 Appendix III Series G: Transmission Systems and Med

ITU-T G.711 APP I-1999 声音频率的零件与元件手册

Packet Loss Concealment (PLC) algorithms, also known as frame erasure concealment algorithms, hide transmission losses in an audio system where the input signal is encoded and packetized at a transmitter, sent over a network, and received at a receiver

Pulse Code Modulation (PCM) of Voice Frequencies - Appendix I: A High Quality Low-Complexity Algorithm for Packet Loss Concealment with G.711 - Series G: Transmission Systems and Media Digital Systems and Networks - Digital Transmission Systems - Terminal

ITU-T G.992.2-1999 无分线的同步数字用户线接收器

This Recommendation describes the interface between the telecommunications network and the customer installation in terms of their interaction and electrical characteristics. This Recommendation allows the transmission of POTS and V-series data services

Splitterless Asymmetric Digital Subscriber Line (ADSL) Transceivers - Series G: Transmission Systems and Media Digital Systems and Networks Digital Transmission Systems - Digital Sections and Digital Line System - Access Networks Study Group 15; 178 pp

ITU-T G.992.1-1999 不对称数字用户线(ADSL)的收发信机 更正1

This Recommendation describes Asymmetric Digital Subscriber Line (ADSL) Transceivers on a metallic twisted pair that allows high-speed data transmission between the network operator end (ATU-C) and the customer end (ATU-R).

Asymmetric Digital Subscriber Line (ADSL) Transceivers - Series G: Transmission Systems and Media Digital Systems and Networks - Digital Transmission Systems - Digital Sections and Digital Line System - Access Networks

ITU-T G.992.2-1999_ 无分线的同步数字用户线接收器

This Recommendation describes the interface between the telecommunications network and the customer installation in terms of their interaction and electrical characteristics. This Recommendation allows the transmission of POTS and V-series data services

Splitterless Asymmetric Digital Subscriber Line (ADSL) Transceivers - Series G: Transmission Systems and Media, Digital Systems and Networks Digital Transmission Systems - Digital Sections and Digital Line System - Access Networks Study Group 15; 178 pp

YD/T 1010-1999 STM-0微波通信系统总技术要求

本标准规定了STM-0数学微波接力通信系统进入国家公用网时需满足的总技术要求。 本标准适用于传输容量为51.840Mbit/s的STM-0地面微波接力通信系统。

General technical specifications of STM-o microwave communication system