TB/T 1723-1994 English PDF

US$179.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
TB/T 1723-1994: Railway Telephone Switching Network - Ringing Current and Signal Tone

TB/T 1723: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
TB/T 1723-1994	179	Add to Cart	2 days	Railway Telephone Switching Network - Ringing Current and Signal Tone
TB 1723-1986	RFQ	ASK	3 days	(Chinese Industry Standard)	Obsolete

Similar standards

TB/T 2834   TB/T 3324   TB/T 3478   TB/T 3477.2   

Basic data

Standard ID: TB/T 1723-1994 (TB/T1723-1994)
Description (Translated English): Railway Telephone Switching Network - Ringing Current and Signal Tone
Sector / Industry: Railway & Train Industry Standard (Recommended)
Classification of Chinese Standard: S71
Word Count Estimation: 4,445
Date of Issue: 9/1/1994
Date of Implementation: 3/1/1995
Older Standard (superseded by this standard): TB 1723-1986
Summary: This standard specifies the railroad switched telephone network switching equipment Ling and tone types and technical indicators. This standard applies to railroad digital program-controlled telephone switching equipment, also applies to railroad crossbar telephone switching equipment.

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