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kbit/s electrical interface characteristics hierarchical bit rate bit rate electrical interface kbit/s interface frame format hot-rolled cylindrical helical springs convex surface ≤0.04 cellular mobile communication system
GB/T 7611-2001 in English

GB/T 7611-2001 in English

SUPERSEDED

Characteristics of the electrical interface at hierarchical bit rate for digital network

  • Issued on:2001-01-02
  • Implemented on:2002-01-02
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $1,540.00
$1,494.00
Standard No: GB/T 7611-2001
Document status: SUPERSEDED
Superseded by: GB/T 7611-2016 Characteristics of the electrical interface at hierarchicalbit rate for digital network
Superseded on: 2016-12-01
Title in English: Characteristics of the electrical interface at hierarchical bit rate for digital network
Title in Chinese: 数字网系列比特率电接口特性
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2001-01-02
Implemented on: 2002-01-02
Superseding: GB 7611-1987 Parameters of digital interface for PCM systems over telecommunication network
ICS Classification: 33.040.50-Lines, connections and circuits
Chinese Classification: M19-Telecommunication technical requirements and interface
Professional Classification: GB-National Standard
Related Keywords: kbit/s electrical interface characteristics
hierarchical bit rate
bit rate
electrical interface
kbit/s interface frame format
Related Topics: sbr send bit rate
electrical characteristics
bit rate detection
bit rate analysis
Detect bit rate
Series product features
Special film series
Bitter URL
GBT7611
GB/T 7611-2001
GB/T 7611-2016
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NCM battery series comparison
gb7611

本标准规定了数字网中系列比特率电接口特性,除GB/T 411-1983和GB/T 14731-1993规定系列比特率电接口外,还包括通过2048kbit/s接口帧格式派生出的n×64kbit/s,384kbit/s和320kbit/s接口,以及44736kbit/s和51840kbit/s电接口特性。所包括的内容如下:A) 64kbit/s接口(E0)。B) 2048kbit/s接口(E12),含2048kbit/s接口基本帧特性,以及利其基本帧格式派生出的:n×64kbit/s(2<n≤30)接口;多个n×64kbit/s(2<n≤30);384kbit/s接口;320kbit/s接口。C) 8448kbit/s(E22),含8448kbit/s基本帧特性。D) 34368kbit/s接口(E31)。E) 139264kbit/s接口(E4)。F) 155520kbit/s—STM-le接口(ES1)。G) 2048kHz同步信号接口(T12)。H) 同步定时接口相位抖动和漂移特性。并在附录L中规定了44736kbit/s接口(E32)的物理电气以及抖动和漂移特性,在附录N中给出了51840kbit/s接口的物理电气和抖动漂移特性,在附录K中规定了“信号丢失(LOS)”,“告警指示信号(AIS)”和“远端缺陷指示(RDI)”检出/清除门限值。本标准是保证数字网各部分(数字段、复用设备、交换设备)互连,以构成一个数字链路或连接的必要条件。也是对数字网网络规划,网间互通,网络维护运行,设备设计,设备维护,设备检验,设备验收等对电接口要求的依据。


Scope

This standard specifies the characteristics of a series of bit rate electrical interfaces in digital networks. In addition to the series of bit rate electrical interfaces specified in GB/T 411-1983 and GB/T 14731-1993, it also includes n derived from the 2048 kbit/s interface frame format. /64 kbit/s, 384 kbit/s and 320 kbit/s interfaces, and 44736 kbit/s and 51840 kbit/s electrical interface characteristics. The contents included are as follows: A) 64 kbit/s interface (E0). B) 2048 kbit/s interface (E12), including basic frame characteristics of 2048 kbit/s interface, and derived from its basic frame format: n/64 kbit/s(2<="" td="">

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