CEPT T CS 42-04 E-1984 System R2 Line Signalling Conversion between Analogue Version and Digital Version《模拟版和数字版之间的系统R2线信令转换(ETR 252 1996)》.pdf
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CEPT T CS 42-04 E-1984 System R2 Line Signalling Conversion between Analogue Version and Digital Version《模拟版和数字版之间的系统R2线信令转换(ETR 252 1996)》.pdf
1、r, I 0 0 O I. CEPT T/CS*42-04*E 4 - Page 1 TCS42-04E Recommendation T/CS 4204 (Montpellier 1984) CONVERSION BETWEEN ANALOGUE AND DIGITAL VERSIONS OF SYSTEM R2 LINE SIGNALLING Recommendation proposed by Working Group T/WG 11 “Switching and Signalling” (CS) Text of the Recommendation adopted by the “T
2、elecommunicatioIis” Commission: This recommendation details the conversion between the analogue and digital line signalling versions of SS R2. It is identical to CCITT Recommendation 4.430 in all respects. The signalling conversion is defined using the specification and description language (SDL) by
3、 splitting the processing into two parts for each conversion direction (analogue to digital or vice versa) giving a total of 4 SDL diagrams: Incoming analogue. Outgoing digital. Incoming digital. Outgoing analogue. The recommendation covers all cases of alarms caused by transmission equipment failure. Edition of May 15, 1986
