1、INTERNATIONAL TELECOMMUNICATION UNION)45G134 1 TELECOMMUNICATIONSTANDARDIZATION SECTOROF ITU).4%27/2+).G0G0/&G0G03).!,).G0G03934%-3,/)#G0G002/#%$52%3)45G134G0G0RecommendationG0G01 (Extract from the “LUEG0“OOK)NOTES1 ITU-T Recommendation Q.606 was published in Fascicle VI.6 of the Blue Book. This fil
2、e is an extract fromthe Blue Book. While the presentation and layout of the text might be slightly different from the Blue Book version, thecontents of the file are identical to the Blue Book version and copyright conditions remain unchanged (see below).2 In this Recommendation, the expression “Admi
3、nistration” is used for conciseness to indicate both atelecommunication administration and a recognized operating agency. ITU 1988, 1993All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic ormechanical, including photocopying and micr
4、ofilm, without permission in writing from the ITU.Fascicle VI.6 - Rec. Q.606 1Recommendation Q.606Fascicle VI.6 - Rec. Q.6066 LOGIC PROCEDURESThe logic procedures are prepared as:a) logic procedures for incoming signalling systems,b) interworking logic procedures,c) logic procedures for outgoing sig
5、nalling systems.A state overview diagram is provided with each procedure. The state overview diagram:- lists the states for the logic,- provides a sheet reference for each state, and- shows permitted transitions between states.In addition, notes and timers are provided.6.1 Incoming signalling system
6、 logic proceduresIn specifying the logic procedures the following elements are used:a) inputs in the form of forward signals,b) outputs in the form of FITEs,c) inputs in the form of BITEs,d) outputs in the form of backward signals,e) time supervision arrangements,f) routing and switching aspects tha
7、t are needed for interworking (SPITEs).Incoming signalling system logic procedures are provided for:- Signalling System No. 4 in Recommendation Q.611,- Signalling System No. 5 in Recommendation Q.612,- Signalling System No. 6 in Recommendation Q.613,- Signalling System No. 7 (TUP) in Recommendation
8、Q.614,- Signalling System R1 in Recommendation Q.615,- Signalling System R2 in Recommendation Q.616.2 Fascicle VI.6 - Rec. Q.6066.2 Interworking logic proceduresIn specifying the logic procedures the following elements are used:a) inputs in the form of FITEs from the incoming signalling system,b) ou
9、tputs in the form of FITEs to the outgoing signalling system,c) inputs in the form of BITEs from the outgoing signalling system,d) outputs in the form of BITEs to the incoming signalling system,e) routing and switching aspects that are needed for interworking (SPITEs).Interworking logic procedures c
10、an be provided for every possible combination of CCITT Signalling Systems.The following interworking combinations are provided:- Signalling System No. 4 to R2 in Recommendation Q.634,- Signalling System No. 5 to No. 6 in Recommendation Q.642,- Signalling System No. 5 to No. 7 (TUP) in Recommendation
11、 Q.643,- Signalling System No. 5 to R1 in Recommendation Q.644,- Signalling System No. 5 to R2 in Recommendation Q.645,- Signalling System No. 6 to No. 5 in Recommendation Q.652,- Signalling System No. 6 to No. 7 (TUP) in Recommendation Q.653,- Signalling System No. 6 to R1 in Recommendation Q.654,-
12、 Signalling System No. 6 to R2 in Recommendation Q.655,- Signalling System No. 7 (TUP) to No. 5 in Recommendation Q.662,- Signalling System No. 7 (TUP) to No. 6 in Recommendation Q.663,- Signalling System No. 7 (TUP) to No. 7 in Recommendation Q.664,- Signalling System No. 7 (TUP) to R1 in Recommend
13、ation Q.665,- Signalling System No. 7 (TUP) to R2 in Recommendation Q.666,- Signalling System R1 to No. 5 in Recommendation Q.671,- Signalling System R1 to No. 6 in Recommendation Q.672,- Signalling System R1 to No. 7 (TUP) in Recommendation Q.673,- Signalling System R1 to R2 in Recommendation Q.674
14、 Signalling System R2 to No. 4 in Recommendation Q.681,- Signalling System R2 to No. 5 in Recommendation Q.682,- Signalling System R2 to No. 6 in Recommendation Q.683,- Signalling System R2 to No. 7 (TUP) in Recommendation Q.684,- Signalling System R2 to R1 in Recommendation Q.685.Fascicle VI.6 -
15、Rec. Q.606 36.3 Outgoing signalling system logic proceduresIn specifying the logic procedures, the following elements are used:a) inputs in the form of FITEs,b) outputs in the form of forward signals,c) inputs in the form of backward signals,d) outputs in the form of BITEs,e) time supervision arrang
16、ements,f) routing and switching aspects that are needed for interworking (SPITEs).Outgoing logic procedures are provided for:- Signalling System No. 4 in Recommendation Q.621,- Signalling System No. 5 in Recommendation Q.622,- Signalling System No. 6 in Recommendation Q.623,- Signalling System No. 7 (TUP) in Recommendation Q.624,- Signalling System R1 in Recommendation Q.625,- Signalling System R2 in Recommendation Q.626.
