TB/T 1689-1993 English Version, TB/T 1689-1993 Railway Telephone Switching Network - Inband Pure Tone Pulse Line Singaling (English Version)

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TB/T 1689-1993 Railway Telephone Switching Network - Inband Pure Tone Pulse Line Singaling (English Version)
Standard No.:	TB/T 1689-1993	Status:	valid remind me the status change Email:
Language:	English	File Format:	PDF
Word Count:	3000 words	Price(USD):	90.0 remind me the price change Email:
Implemented on:	1993-10-1	Delivery:	via email in 1~3 business day

Standard No.:	TB/T 1689-1993
English Name:	Railway Telephone Switching Network - Inband Pure Tone Pulse Line Singaling
Chinese Name:	铁路电话交换网带内单频脉冲线路信号方式
Chinese Classification:	S71 Railway communication network
Professional Classification:	TB Professional Standard - Railway Transport
Issued by:	Ministry of Railways
Issued on:	1993-4-22
Implemented on:	1993-10-1
Status:	valid
Superseding:	TB 1689-1985
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	90.0
Delivery:	via email in 1~3 business day

Standard

TB/T 1689-1993 Railway Telephone Switching Network - Inband Pure Tone Pulse Line Singaling (English Version)
Standard No.	TB/T 1689-1993
Status	valid
Language	English
File Format	PDF
Word Count	3000 words
Price(USD)	90.0
Implemented on	1993-10-1
Delivery	via email in 1~3 business day

Detail of TB/T 1689-1993

Standard No.

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Chinese Classification

Professional Classification

ICS Classification

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Introduction of TB/T 1689-1993

本标准规定了铁路电话交换网带内单频脉冲线路信号的种类和作用、信号传送方式、信号结构、信号分割以及相关的技术指标。
本标准适用于在频分或时分复用的电话所间电路上使用。

Contents of TB/T 1689-1993

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