L24 安装、接线连接件 标准查询与下载

ITU-T R.54-1993 标准化50Bd起止式系统所允许的常规畸变度

As a consequence of a reform process within the International Telecommunication Union (ITU), the CCITT ceased to exist as of 28 February 1993. In its place, the ITU Telecommunication Standardization Sector (ITU-T) was created as of 1 March 1993. Similarly

Conventional Degree of Distortion Tolerable for Standardized Start-Stop 50-Baud Systems - Telegraphy Telegraph Transmission (Study Group IX) 4 pp

ANSI/EIA 540G000:1993 电子设备用焊上插孔分规范

Relates to burn-in sockets of assessed quality.

Sectional Specification for Burn-In Sockets for Use in Electronic Equipment

ANSI/EIA 540DAAA-A:1993 电子设备用双列直插式2片接触式插孔的详细规范

Provides all information required for the identification quality assessment of dual-in-line package sockets for the NECQ quality system, using Sectional Specification EIA-540D000 as a base.

Detail Specification for Dual-in-Line 2-Piece Contact Socket for Use in Electronic Equpiment

ANSI/EIA 540GA00:1993 电子设备用带模制垫圈的片载插件用焊上插孔的空白详细规范

Provides all information required for the identification and quality assessment of the burn-in sockets for chip carrier packages with molded carrier rings.

Blank Detail Specification for Burn-In Socket for Chip Carrier Packages with Molded Carrier Rings for Use in Electronic Equipment

ANSI/EIA 540GAAA:1993 电子设备用带模制垫圈的片载插件烧制插孔的分规范

Provides all information required for the identification and quality assessment of the burn-in sockets for chip carrier packages that are defined by EIA/JEDEC Publication 95.

Detail Specification for Burn-In Sockets for Chip Carrier Packages with Molded Carrier Rings for Use with Electronic Equipment

ITU-R F.761-1992 18.6-18.8GHz波段内固定业务和无源传感器之间的频率共享.第9F部分-频率共享的安全性

hat the WARC-79 made allocations to the earth exploration-satellite and space research services for passive sensors in the band 18.6-18.8 GHz, with primary status in Region 2 and secondary status in Regions 1 and 3

(WITHDRAWN) Frequency Sharing between the Fixed Service and Passive Sensors in the Band 18.6-18.8 GHz - Section 9F - Frequency Sharing with Other Services

ITU-R BO.794-1992 将降雨引起的沿馈线链路通道对BSS系统性能的影响降至最小的技术

that any degradation on the feeder links will impact on the broadcasting-satellite service BSSI performance over the whole service area

Techniques for Minimizing the Impact on the Overall BSS System Performance Due to Rain Along the Feeder-Link Path

ITU-R BT.806-1992 收集天线和有线分配系统中D-MAC、D2-MAC 和 HD-MAC信号分配的普通信道光栅

that Recommendation 650 in Annex 1 recommends the use of multiplex analogue components systems D-MAC/packet and DZMAC/packet systems for satellite emission of TV, and gives the corresponding specifications

Common Channel Raster for the Distribution of D-MAC D2-MAC and HD-MAC Signals in Collective Antenna and Cable Distribution Systems

ITU-R P.617-1-1992 超视距无线电中继系统设计所要求的传播预测技术和数据

The only mechanisms for radio propagation beyond the horizon which occur permanently for frequencies greater than 30 MHz are those of diffraction at the Earth’s surface and scatter from atmospheric irregularities. Attenuation for diffracted signais increa

PROPAGATION PREDICTION TECHNIQUES AND DATA REQUIRED FOR THE DESIGN OF TRANS-HORIZON RADIO-RELAY SYSTEMS

ITU-T D.192 (REV 1)-1992 电信业务的计费和结算原则(研究组3)5页

The CCI’l? (the Internationai Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommunication Union (ITü). CCI’ïT is responsible for studying technical, operating and tariff questions and issuing Recommendation

Principles for Charging and Accounting of Service Telecommunications (Study Group III) 5 pp

ANSI/EIA 540FAAB:1992 电子设备用间距100密耳的多插件成角度安装格式模块化插孔的详细规范

Provides data for the identification and quality assessment of these sockets for the NECQ quality system.

Detail Specification for Multi-Package 100 Mil Pitch, Angled Mounting Format Module Sockets for Use in Electronic Equipment

ANSI/EIA 540FAAA:1992 电子设备用间距100密耳多插件垂直安装格式模块化插孔的详细规范

Provides data for the identification and quality assessment of these sockets for the NECQ quality system.

Detail Specification for Multi-Package 100 Mil Pitch, Vertical Mounting Format Module Sockets for Use in Electronic Equipment

ANSI/EIA 540E000:1992 圆形插孔的分规范

Defines a unified numbering system to be used for round-style sockets standardized by EIA.

Sectional Specification for Round Style Sockets

ANSI/EIA 540FAAD:1992 电子设备用间距50密耳的多插件成角度安装格式模块化插孔的详细规范

Applies to sockets for multi-package modules, angled mounting.

Detail Specification for Multi-Package 50 Mil Pitch, Angled Mounting Format Module Sockets for Use in Electronic Equipment

ANSI/EIA 540FAAC:1992 电子设备用间距50密耳的多插件竖直安装格式模块化插孔的详细规范

Applies to sockets for multi-package modules, vertical mounting.

Detail Specification for Multi-Package 50 Mil Pitch, Vertical Mounting Format Module Sockets for Use in Electronic Equipment

ANSI/EIA 540ADAA:1992 电子设备用针状格子排列插孔的适配器-载体方形平接头的详细规范

Provides data for the identification and quality assesment of Quad Flatpack Carrier with solder land ares for attaching surface mount devices.

Adaptor-Carrier Quad Flat Pack to Pin Grid Array Sockets for Use in Electronic Equipment, Detail Specification for

IEC 60998-2-2:1991 家用和类似用途低压电路连接设备.第2部分第2节:具有无螺钉型夹紧部件的分离式连接装置的特殊要求

Connecting devices for low voltage circuits for household and similar purposes; part 2-2: particular requirements for connecting devices as separate entities with screwless-type clamping units

IEC 60998-2-3:1991 家用和类似用途低压电路连接设备.第2部分第3节:具有绝缘穿孔夹紧部件的分离式连接装置的特殊要求

Connecting devices for low voltage circuits for household and similar purposes; part 2-3: particular requirements for connecting devices as separate entities with insulation piercing clamping units

UL 486A-1991 铜导线用接线器和焊片

Wire connectors and soldering lugs for use with copper conductors

ANSI/EIA 540AD00:1991 电子设备用针式格子排列插座的适配器载体方形扁平外壳的详细规范

Provides all information required for the identification and quality assessment of adaptor carrier quad flat pack to pin grid array sockets.

Adapter-Carrier Quad Flat Pack to Pin Grid Array Sockets for Use in Electronic Equipment, Blank Detail Specification for