YD/T 557-1992

YD/T 557-1992, Total:69 items.

The international standard classification for "YD/T 557-1992" includes: Lines, connections and circuits , Transmission systems , Cabled distribution systems .

The Chinese standard classification for "YD/T 557-1992" includes: Information transmission index , Arrangement of transmission system group and frequency spectrum , Communication equipment in general , Communication line and equipment , Postal machinery , Optical instrument in general , Optical communication equipment , Data communication equipment , Telecommunication technical requirements and interface , Facsimile telegraph equipment , Basic standards and general methods , Telecommunication power supply equipment , Microwave communication equipment , Telephone communication equipment , Connecting piece for installation and wiring , Communication network performance index and testing , Postal instrument , Carrier communication equipment , Relay and chopper , Universal parts and line materials .

Professional Standard - Post and Telecommunication

YD/T 601-1992 Electronic weighing instrument for parcel posting
YD/T 568-1992 Technical Requirements and Test Methods for Relay in Manual Toll Telephone Switching Equipments
YD/T 602-1992 Letter stamping machine
YD/T 558-1992 The Xin-8 Transposition System for Open-wire Telecommunication Lines
YD/T 548-1992 Specification and Test Method for Conference Telephone Sets
YD/T 525-1992 General technical requirements of standard 2.6/9.5mm coaxial line for 22MHz(4380 channels) carrier communication system
YD/T 533-1992 PVC insulated, PVC sheathed, LF communication cables and wires Solid-conductor, PVC insulated, PA sheathed office wirings
YD/T 577-1992 Jack and Plug for Indoor Telephone
YD/T 590.1-1992 Plastic jacket joint closure for telecommunication cable Part 1:General specification
YD/T 557-1992 The Xin-4 Transposition System for Open-wire Telecommunication Line
YD/T 569-1992 Technical Requirements and Test Methods for Ringing Power Sources Alarm and Distribution Frame in Manual Toll Telephone Switching Equipments
YD/T 560-1992 The Wire Configurations on Poles of Open-wire for Toll Telecommunications
YD/T 552-1992 Test method of continuity attenuation distortion in communication network
YD/T 542-1992 Technical specification of telephone dial
YD/T 530-1992 high-frequency office symmetric copper-core, PE insulated, PVC sheathed cables
YD/T 534-1992 PVC Insulated, PVC Sheathed, LF Communication Cables and Wires Solid- Or Stranded-Conductor, PVC Insulated Equipment Wires
YD/T 547-1992 Technical Requirement & Test Method for Conference Telephone Tandem Bord
YD/T 592-1992 Test method for wavelength dispersion of mono-mode optical fiber - interference method
YD/T 587-1992 Test Method for Technical Parameters for Networking of Telegraph Terminal Equipment
YD/T 595-1992 Technical requirement of D2-MAC/Packet color TV signals transmitted though domestic satellite communication network
YD/T 566-1992 Technical Requirement and Test Method for Monitors Desk in Manual Toll Telephone Switching Equipments
YD/T 554-1992 Specification for Channel Translating Equipment Used on Carrier Systems
YD/T 596-1992 Technical conditions of white noise test sets
YD/T 597-1992 Technical conditions of 64kbit/s error code analyzers
YD/T 586-1992 Network access requirements for public telegraph terminal equipment with Chinese characters
YD/T 535-1992 PVC insulated, PVC sheathed, LF communication cables and wires Solid-conductor, PVC insulated office wirings
YD/T 522-1992 Drum bag duster
YD/T 553-1992 Specification for Group Translating Equipment Used on Carrier Systems
YD/T 538-1992 Technical requirements for Alphabetic and Chinese-character teleprinters
YD/T 565-1992 Technical Requirements and Test Methods for Service Observation Desks (Quality Checking Desks) in Manual Toll Telephone Switching Equipments
YD/T 512-1992 Technical Conditions for Telegraph Power Supply Unit
YD/T 531-1992 PVC insulated, PVC sheathed, LF communication cables and wires Solid- or stranded-conductor, PVC insulated cables and wires for shielding-type equipment
YD/T 584-1992 Laser tester
YD/T 563-1992 Technical requirements and test methods for toll connecting boards And special boards in manual toll telephone switching equipments
YD/T 559-1992 Sealing Test for Pressarized Waveguide Componet and Assemblies
YD/T 520-1992 Technical conditions for 564 992 kbit/s error code analyzer
YD/T 511-1992 Standard messages for normal margin of start-stop apparatus
YD/T 599-1992 Technical requirements of 2048 8448 Kbit/s error analyzer
YD/T 518-1992 Technical conditions for data communication protocol analyzer
YD/T 575-1992 Lead Charaters for Post and Telegraph Date-stamp
YD/T 516-1992 Technical conditions for aggregate automatic monitoring system
YD/T 551-1992 Document facsimile transmission(group1)in telephone network
YD/T 567-1992 Technical Requirement and Test Method for Exchanger of Operating Service in Manual Toll Telephone Switching Equipments
YD/T 510-1992 Standard messages for testing distortion of telegraph circuits
YD/T 540-1992 Graphic symbols used in circuit operation procedure diagram for electromechanical components of telephone exchanges
YD/T 570-1992 Newspaper fax test sample
YD/T 562-1992 General Technical Requirements and Test Methods for Manual Toll Telephone Switching Equipments
YD/T 1992-2009 Test specifications for SDH-based multi-service transport platform (MSTP) － Interoperability
YD/T 590.3-1992 Plastic jacket joint closure for telecommunication cable Part 3:Plastic injection joint closure
YD/T 515-1992 Technical conditions for multimode optical fiber frequency-domain bandwidth tester
YD/T 545-1992 Main dimensions of telephone receiver
YD/T 528-1992 Phase screened digital coaxial cables
YD/T 513-1992 Technical requirement for electronic teleprinters
YD/T 590.2-1992 Plastic jacket joint closure for telecommunication cable Part 2:Heat shrinkable joint closure
YD/T 561-1992 Private Letter Box for Multistorey and High-rise Block of Flets
YD/T 532-1992 PVC insulated, PVC sheathed, LF communication cables and wires Signal cables for communication equipment and devices
YD/T 593-1992 Characteristics of dispersion shift mono-mode optical fiber at 1550nm band
YD/T 580-1992 The Technology of Wire-Wrapping
YD/T 549-1992 Technical requirements for intercommunication of telephone fax machines in telephone network
YD/T 555-1992 Wall Mail Box
YD/T 564-1992 Technical requirements and test methods for toll service boards (Toll recording boards enquiry desks) In manual toll telephone swiching eqiupments
YD/T 591-1992 General specification for laser imagesetter
YD/T 539-1992 Fundamental Parameters of Synchronous Data Multiplexing Scheme Without Envelope Structure
YD/T 521-1992 Test Method of Digital Exchange Analog Interfaces and Test Method of Transmission Characteristics Between (2-Wire Or 4-Wire) Analog Interfaces
YD/T 544-1992 Main Dimension of Telephone Transmiters
YD/T 598-1992 Technical conditions of mono-mode optical fiber time-domain reflectoscopes

邮电部

YD/T 594-1992 Specifications for postal parcel sorting machines
YD/T 607-1992 life test method of relay for crossbar telephone exchange
YD/T 608-1992 Life test method of crossbar connector

Others: yd/t 2689,yd/t 1099,yd/t 1156,yd/t 1597.1,yd/t 1029,yd/t 1460.3,yd/t 2379.4,yd t 2583.14,yd/t 2379.5,yd/t 1484.6,yd/t 1710.1,yd/t 760,yd/t 2370,yd/t 2740.2,yd/t 1363.2,yd/t 841.8,yd/t 2583.2,yd/t 2624,YD/T 557-1992