1、CEPT T/CS*42-02*E 232bYL4 OOOri780 5 (3 TCS42-02E Page 1 Recommendation T/CS 42-02 (Stockholm 1976, revised in Vienna 1982, Cannes 1983 and Nice 1985) SYSTEM R2 LINE SIGNALLING, ANALOGUE VERSION Recommendation proposed by Working Group T/WG 1 1 “Switching and Signalling” (CS) Text of the Recommendat
2、ion revised adopted by Commission “Telecommunications: This Recommendation details the analogue version of line signalling for signalling system R2. It is identical to the relevant CCITT red book Recommendations (Q.411-414) in all respects. The document contains sections dealing with: - The line signalling code. - Line signalling equipment. - Transmission line signalling equipment. - Interruption control. Edition of May 15, 1986
