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leap second

leap second, Total:39 items.

In the international standard classification, leap second involves: Horology, Telecommunication systems, Integrated Services Digital Network (ISDN), On-board equipment and instruments, Integrated circuits. Microelectronics, Rectifiers. Convertors. Stabilized power supply, Mobile services, Interface and interconnection equipment, Networking.

IETF - Internet Engineering Task Force, leap second

• RFC 7164-2014 RTP and Leap Seconds
• RFC 6131-2011 "Sieve Vacation Extension: ""Seconds"" Parameter"

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, leap second

• GB/T 22778-2008 Liquid crystal digital quartz stopwatches
• GB/T 4827-1984 Requirements of data transmission at 50 bit/s
• GB/T 9540-1988 Synchronous data transmission Data signal rate higher than 72 kbit/s Broadband modulation using 60~108 kHz primary group circuit

国家市场监督管理总局、中国国家标准化管理委员会, leap second

• GB/T 22778-2021 Liquid crystal digital quartz stopwatches

Professional Standard - Light Industry, leap second

• QB/T 1908-1993 LCD digital quartz stopwatch

National Metrological Technical Specifications of the People's Republic of China, leap second

• JJF(机械) 063-2009 DTM digital millisecond meter calibration specification

National Metrological Verification Regulations of the People's Republic of China, leap second

• JJG(机械) 78-1992 Verification Regulations for DTM Digital Millisecond Meter
• JJG(航天) 30-1987 Verification Regulations for DC Nanosecond Digital Voltmeter

Society of Motion Picture and Television Engineers (SMPTE), leap second

• SMPTE 425-2008 3 GB/s Signal/Data Serial Interface ?Source Image Format Mapping

German Institute for Standardization, leap second

• DIN EN 300299:2001 Broadband Integrated Services Digital Network (B-ISDN) - Cell based user network access for 155520 kbit/s and 622080 kbit/s - Physical layer interfaces for B-ISDN applications (Endorsement of the English version EN 300299 V 1.3.2 (2000-05) as German Stand
• DIN ETS 300144:1996 Integrated Services Digital Network (ISDN) - Audiovisual services - Frame structure for a 64 kbit/s to 1920 kbit/s channel and associated syntax for inband signalling; English version ETS 300144:1996
• DIN EN 302096:2000 Digital Enhanced Cordless Telecommunications (DECT) - Cordless Terminal Mobility (CTM) - Feature Package 1 (FP1); CTM circuit-switched data profile, 32 kbit/s and 64 kbit/s unrestricted digital information (UDI) (Endorsement of the English version EN 3020
• DIN 66021-9:1983 Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for synchronous transmission on groupband circuits at 48000 bits per second

Society of Automotive Engineers (SAE), leap second

• SAE AS5652-2005 10 Megabit/sec Network Configuration Digital Time Division Command/Response Multiplex Data Bus
• SAE AS5652-2013 10 Megabit/sec Network Configuration Digital Time Division Command/Response Multiplex Data Bus

SAE - SAE International, leap second

• SAE AS5652A-2018 10 Megabit/sec Network Configuration Digital Time Division Command/Response Multiplex Data Bus

International Telecommunication Union (ITU), leap second

• ITU-T M.1300-1997 Maintenance of international data transmission systems operating in the range 2.4 kbit/s to 140 Mbit/s Study Group 4; 17 pp
• ITU-T M.1350-1989 Setting up, Lining up and Characteristics of International Data Transmission Systems Operating in the Range 2.4 kbit/s to 14.4 kbit/s - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public T
• ITU-R V.35-1976 (WITHDRAWN) Wideband Modems Data Transmission at 48 Kilobits Per Second Using 60-108 kHz Group Band Circuits
• ITU-T V.91 CORR 1 FRENCH-2001 A digital modem operating at data signalling rates of up to 64 O00 bit/s for use on a 4-wire circuit switched connection and on leased point-to-point 4-wire digital circuits Corrigendum 1
• ITU-T V.91 CORR 1 SPANISH-2001 A digital modem operating at data signalling rates of up to 64 O00 bit/s for use on a 4-wire circuit switched connection and on leased point-to-point 4-wire digital circuits Corrigendum 1

U.S. Air Force, leap second

• AIR FORCE FIPS-PUB-137 CHG NOTICE 1-1996 ANALOG TO DIGITAL CONVERSION OF VOICE BY 2,400 BIT/SECOND LINEAR PREDICTIVE CODING

ITU-T - International Telecommunication Union/ITU Telcommunication Sector, leap second

• ITU-T V.35-1984 Data transmission at 48 kilobits per second using 60-108 kHz group band circuits
• ITU-T V.35-1989 Data Transmission at 48 Kilobits per Second Using 60-108 kHz Group Band Circuits - Data Communication over the Telephone Network (Study Group XVII; 1 pp; Cancelled)

SE-SIS, leap second

• SIS SS-ENV 41 001-1989 ISDN connector up to 8 pins and up to 2,048 Mbit/s

Defense Logistics Agency, leap second

• DLA SMD-5962-04208 REV A-2004 MICROCIRCUIT, DIGITAL-LINEAR, ANALOG-TO-DIGITAL CONVERTER, 8-BIT, 20 MSPS, MONOLITHIC SILICON
• DLA SMD-5962-05217 REV A-2007 MICROCIRCUIT, DIGITAL-LINEAR, 12 BIT 50 MSPS ANALOG TO DIGITAL CONVERTER, MONOLITHIC SILICON
• DLA SMD-5962-94755 REV B-2001 MICROCIRCUIT, LINEAR, 12-BIT, SERIAL SIX MICROSECOND ANALOG-TO-DIGITAL CONVERTER, MONOLITHIC SILICON
• DLA SMD-5962-04230-2004 MICROCIRCUIT, DIGITAL-LINEAR, A/D CONVERTER, 14-BIT, 80 MSPS, MONOLITHIC SILICON
• DLA SMD-5962-04231-2006 MICROCIRCUIT, DIGITAL-LINEAR, ANALOG-TO-DIGITAL CONVERTER, 8-BIT, 20 MSPS TO 200 MSPS, MONOLITHIC SILICON

Association Francaise de Normalisation, leap second

• NF Z82-144*NF ETS 300144:1997 Integrated Services Digital Network (ISDN). Audiovisual services. Frame structure for a 64 kbit/s to 1920 kbit/s channel and associated syntax for inband signalling.
• NF Z82-108*NF ETS 300108:1995 Integrated Services Digital Network (ISDN). Circuit-mode 64 kbit/S unrestricted 8 kHz structured bearer service category. Service description.

American National Standards Institute （ANSI), leap second

• ANSI T1.302-1989 Digital Processing of Voice-Band Signals-Line Format for 32 kbit/s Adaptive Differential Pulse-Code Modulation (ADPCM

British Standards Institution (BSI), leap second

• BS 7246:1990 Guide for local area networks CSMA/DC 10 M bits/s baseband planning and installation

Conference of European Post Telecommunication (CEPT), leap second

• CEPT T/CD 01-12 E-1983 Concerning the Specification of Engineering Requirements for Three Types of Plug-in DCE?s Operating with a User Data Signalling Rate of 2,400 Bits/s

RU-GOST R, leap second

• GOST 28749-1990 Signal conversion equipments for simultaneous duplex data transmission on the switched channels general telephone network with the speed 2400 bit/s. Types and basic parameters

ITU-R - International Telecommunication Union/ITU Radiocommunication Sector, leap second

• ITU-R F.763-1992 Data Transmission at 2400/1200/600/300/150/75 Bit/s over HF Circuits Using Multi-Channel Voice-Frequency Telegraphy and Phase- Shift Keying - Section 3Cb - Data Transmission

Others:   order of magnitude, Tongren Electronics, half hour milliseconds, leap second, Tongren Electronics.