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  4. Standard "GB/T 7557-1987"
WITHDRAWN GB/T 7557-1987 26.3.1987 preview

GB/T 7557-1987

General characteristics complying with the network performance objectives for 300 channel carrier telephone systems on standardized 1.2/4.4mm coaxial cable pairs

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STANDARD published on 26.3.1987


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Price238.80 USD excl. VAT
238.80 USD

The information about the standard:

Designation standards: GB/T 7557-1987
Note: WITHDRAWN
Publication date standards: 26.3.1987
SKU: NS-889504
Country: Chinese technical standard
Category: Technical standards GB

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Latest update: 2026-09-04 (Number of items: 2 300 131)
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