GB/T 3972-1992
Relays for crossbar telephone switching systems (English Version)

Standard No.

GB/T 3972-1992

Language

Chinese, Available in English version

Release Date

1992

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Withdraw

Latest

GB/T 3972-1992

Replace

GB 3972-1983

Scope

This standard applies to PR101, JTX and JR14 relays (hereinafter referred to as relays); these three types of relays are mainly used as control components of crossbar telephone exchanges, and can also be used by other exchanges, other communication equipment and automatic control devices .

GB/T 3972-1992 history

• 1992 GB/T 3972-1992 Relays for crossbar telephone switching systems
• 0000 GB 3972-1983