Withdrawn

GB/T 7556-1987General characteristics complying with the network performance objectives for 60 channel carrier telephone systems on symmetric cable pairs (English PDF)

对称电缆60路载波系统进网特性要求

GB/T 7556 | Evolution and historical versions

Std ID	Title	Status
GB/T 7556-1987	General characteristics complying with the network performance objectives for 60 channel carrier telephone systems on symmetric cable pairs	Obsolete

GB/T 7556-1987 is obsolete. This page sells the obsolete edition, for projects and contracts that still cite it.

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Issued by

National Bureau of Standards

Level / Type

National · Recommended

Issue date

March 26, 1987

Implementation date

November 1, 1987

Scope

GB/T 7556-1987 is the English-translated version of 对称电缆60路载波系统进网特性要求.

GB/T 7556-1987 is the Chinese national standard "General characteristics complying with the network performance objectives for 60 channel carrier telephone systems on symmetric cable pairs".

It was issued on March 26, 1987 by the National Bureau of Standards, and took effect on November 1, 1987. It is obsolete: it has been withdrawn (abolished on October 14, 2005).

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Document preview — GB/T 7556-1987

National Standard of the People's Republic of China

Issued by: National Bureau of Standards

Document data

1 Document data

Sector: National standard (Recommended).

Issuing body: National Bureau of Standards.

Date of issue: 1987-03-26.

Date of implementation: 1987-11-01.

Status: obsolete, withdrawn on 2005-10-14.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

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