GB/T 7621-1987 English PDF

US$559.00 · In stock
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GB/T 7621-1987: 1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephone circuits

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 7621-1987	559	Add to Cart	3 days	1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephone circuits

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Basic data

Standard ID: GB/T 7621-1987 (GB/T7621-1987)
Description (Translated English): 1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephone circuits
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: M32
Classification of International Standard: 33.040.60
Word Count Estimation: 16,168
Date of Issue: 4/3/1987
Date of Implementation: 11/1/1987
Adopted Standard: CCITT V.22-1984, MOD
Issuing agency(ies): National Bureau of Standards
Summary: This standard uses a CCITT CCITT Recommendation V. 22 "automatic exchange network and point-wire leased telephone standardized for use on telephone-type circuits of 1200 bits/second duplex modem. "

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