signal letter

signal letter, Total:31 items.

The international standard classification for "signal letter" includes: Construction of railways , Railway engineering in general .

The Chinese standard classification for "signal letter" includes: Blocking systems and axle counters .

Professional Standard - Railway

TB/T 3060-2002 Cab signaling message define and allocation
TB/T 1121-1998 Numbering Principle for Enterprise Standard of Communication Signal
TB/T 3060-2016 Cab signaling message definition and allocation

TB/T 1448-2018 Isolation voltage of railway communication & signal product
TB/T 454.1-2021 Glossary of railway communication signaling-Part 1: Glossary of railway signaling

ITU-T Q.441-1989 Interregister Signalling - Signalling Code - Specifications of Signalling Systems R1 and R2 (Study Group XI) 10 pp
ITU-T Q.260-1988 3.4 Management Signals - Specifications of Signalling System No. 6 (Study Group XI) 5 pp
ITU-T Q.256-1988 2.3 Management Signals - Specifications of Signalling System No. 6 (Study Group XI) 1 pp
ITU-T Q.254-1988 2.1 Telephone Signals - Specifications of Signalling System No. 6 (Study Group XI) 4 pp
ITU-T Q.258-1988 3.2 Telephone Signals - Specifications of Signalling System No. 6 (Study Group XI) 8 pp
ITU-T Q.450-1989 Interregister Signalling - General - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp
ITU-T Q.601 TO Q.695 ANNEX A-1993 Lists and meanings of FITEs, BITEs and SPITEs - Representation of information contents of signals of the signalling systems
ITU-T Q.151-1988 Signal code for register signalling
ITU-T Q.320-1988 Signal code for register signalling
ITU-T Q.121-1989 Signal Code - Specifications of Signalling Systems Nos. 4 and 5 (Study Group XI) 6 pp
ITU-T Q.411-1988 Line Signalling, Analogue Version-Line Signalling Code - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp
ITU-R RAPPORT BT.484-2 FRENCH-1986 RATIO OF PICTURE-SIGNAL TO SYNCHRONIZING-SIGNAL

DIN EN 981:2009 Safety of machinery - System of auditory and visual danger and information signals; German version EN 981:1996+A1+2008

ARINC 407-1 PART 5 Recommended Practice on Signal Polarities for Condition and Command Signals

KS A ISO 11429:2008 Ergonomics-System of auditory and visual danger and information signals

AIR FORCE QPL-38449-9-1984 SIGNAL AND SIGNAL/INTERCOMMUNICATION AMPLIFIERS, UNIVERSAL, AERIAL REFUELING
AIR FORCE QPL-38449-QPD-2010 SIGNAL AND SIGNAL/INTERCOMMUNICATION AMPLIFIERS, UNIVERSAL, AERIAL REFUELING
AIR FORCE QPL-38449-9 REINST NOTICE 2-2009 SIGNAL AND SIGNAL/INTERCOMMUNICATION AMPLIFIERS, UNIVERSAL, AERIAL REFUELING

T1.110-1992 Telecommunications - Signalling System No. 7 (SS7) - General Information

NF X35-118*NF EN 981+A1:2008 Safety of machinery - System of auditory and visual danger and information signals
NF X35-118:1997 Safety of machinery. System of auditory and visual danger and information signals.

BS 689:1936 Railway mechanical signalling apparatus (signal posts semaphore signals, fittings and connections, and point connections and fittings.)