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GB/T 11820-1989 English PDF

US$479.00 ยท In stock
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GB/T 11820-1989: The requirements for urban optical fiber cable systems joined to national public telecommunication network
Status: Obsolete
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GB/T 11820-1989English479 Add to Cart 3 days [Need to translate] The requirements for urban optical fiber cable systems joined to national public telecommunication network Obsolete GB/T 11820-1989

PDF similar to GB/T 11820-1989


Standard similar to GB/T 11820-1989

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Basic data

Standard ID GB/T 11820-1989 (GB/T11820-1989)
Description (Translated English) The requirements for urban optical fiber cable systems joined to national public telecommunication network
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard M33
Classification of International Standard 33.180.30
Word Count Estimation 12,144
Date of Issue 10/25/1989
Date of Implementation 7/1/1990
Issuing agency(ies) State Bureau of Technical Supervision
Summary This standard specifies the city into the national public telecommunication fiber optic communication system requirements (hereinafter referred to as the network access requirements), including the composition of the city's main fiber optic communication systems and transmission characteristics, the main transmission line system features a digital optical cable and requirements, fiber optic communications system requirements for the machine line equipment, and reliability requirements and maintenance requirements, such as use of the system. This standard applies to the telecommunications network between the city Bureau relay (relay contains a long city) of fiber optic communication systems (fiber optic communication system that does not contain the user). Telegraph and telephone services to meet the open, data, fax, video and other non-voice business requirements. A dedicated telecommunications network using the bureau (station) cable between the relay communication system may also refer to the use of this standard.

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