1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2006 12 22 http:/www.kats.go.krKS X 3510 OSI KS X 3510： 2006 (2011 ) X 3510： 2006 : ( ) ( ) : (http:/www.standard.go.kr) ： ：1996 12 31 ：2006 12 22 ：2011 12 29 2011-0657 ： ： ( 02-509-72635) (http:/www.kats.go.kr). 10 5 , . ICS 35.100.30 KS OSI X 3510： 2006(2
2、011 ) Information technology Provision of the OSI connection mode network service by packet mode terminal equipment to an integrated services digital network(ISDN) 1. X.31 (ISDN) OSI (CONS) . CONS (primitives) D (parameters) . a) R ISDN X.25 DTE(TE 2) b) ISO/IEC 8208 (PLP) S R ISDN ISDN (TE 1) . a)
3、X.31 , TE 1 TE 2 ISDN ISDN . b) ISDN , TE 1 TE 2/TA ( DTE/DTE ). DTE/DTE ISDN , R TA TE 2 ( X.613 ISO/IEC 10588 ). 1. TE 1, TE 2 , TA , R, S, T I.411 . 2. TE 1 TE 2/TA, OSI PBX . X.25 CONS . X.25 . X.25 PVC . . ISDN , . 2. . . 2.1 a) ITU T X.213(1992)KS X 3503 2.2 X 3510： 2006 2 a) KS X 3002 b) ITU
4、T X.200： 1988 ITU T (Reference model of open systems interconnection for ITU T applications) ISO 7498： 1984 (Information processing systems Open systems interconnection Basic reference model) c) ITU T X.210： 1988 (Open systems Interconnection layer service definition conventions) ISO/TR 8509： 1987 (
5、Information processing systems Open Systems Interconnection Service conventions) d) ITU T X.223： 1988 ITU T OSI X.25 (Use of X.25 to provide the OSI connection-mode network service for ITU T applications) ISO 8878： 1987 OSI X.25 (Information processing systems Data communications Use of X.25 to prov
6、ide the OSI connection mode network service) 2.3 a) ITU T I.231： 1988 (Circuit mode bearer service categories) b) ITU T I.232： 1988 (Packet mode bearer service categories) c) ITU T I.430： 1988 1 (Basic user network interfacelayer 1 specification) d) ITU T I.431： 1988 1 (Primary rate user network int
7、erface； layer 1 specification) e) ITU T Q.921(I.441)： 1988 ISDN (ISDN Usernetwork interface Data link layer specification) f) ITU T Q.931(I.451)： 1988 ISDN 3 (ISDN User Network Interface Layer 3 Specification for basic call control) g) ITU T V.25 bis： 1988 / (Automatic Answering Equipment and/or Par
8、allel Automatic Calling Equipment on the General Switched Telephone Network Including Procedures for Disabling of Echo Control Devices for Both Manually and Automatically Established Calls) h) ITU T X.21 (DTE) Interface between data terminal equipment(DTE) and data circuit terminating equipment(DCE)
9、 for synchronous operation on public data networks i) ITU T X.21 bis V (DTE) (Use on public data networks of data terminal equipment(DTE) which is designed for interfacing to synchronous V series modems) j) ITU T X.25 (DTE) Interface between Data Terminal Equipment(DTE) and Data Circuit terminating
10、Equipment(DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit k) ITU T X.30(I.462)： 1988 X.21, X.21bis X.20bis X 3510： 2006 3 (DTEs) Support of X.21, X.21bis and X.20bis based data terminal equipments(DTEs) by an Integrated Services Digital Netw
11、ork(ISDN) l) ITU T X.31(I.462)： 1988 ISDN (Support of packets mode terminal equipment by an ISDN) m) ITU T X.32： 1988 (DTE) (DCE) (Interface between data terminal equipment(DTE) and data circuitterminating equipment(DCE) for terminals operating in the packet mode and accessing a packet switched publ
12、ic data network through a public switched telephone network or an ISDN or a circuit switched public data network) n) ISO 7776： 1986 X.25 LAPB DTE (Information processing systems Data communications High level data link control procedures Description of the X.25 LAPB compatible DTE data link procedur
13、es)KS X 3308 X.25 LAPB DTE o) ISO/IEC 8208： 1990 X.25 (Information technology Data communications X.25 Packet Layer Protocol for Data Terminal Equipment)KS X 3508 DTE X.25 3. . 3.1 ITU T X.200KS X 3002 . a) b) c) 3.2 ITU T X.210ISO/TR 8509 . a) b) 3.3 ITU T X.213KS X 3503 . a) N CONNECT (request) b)
14、 N DISCONNECT (indication) 3.4 X.25 ITU T X.25ISO/IEC 8208 . a) (DATA packet ) b) (data terminal equipment) c) (incoming call) d) (throughput class) e) (user data field) 3.5 X.31 ITU T X.31 . a) (conditional notification class of service) b) ISDN (virtual circuit bearer service) c) (no notification
15、class of service) d) (packet handling function) e) PSDN X 3510： 2006 4 f) (unconditional class of service) g) (semi permanent access)( ) h) (demand access) ISDN (permanent) . 3.6 I.112 ITU T I.112 . a) (terminal equipment) b) (reference point) 3.7 I.411 ITU T I.411 . a) R(R reference point) b) S(S r
16、eference point) c) T(T reference point) d) (terminal adaptor) 3.8 I.412 ITU T I.412 . a) B(B channel) b) D(D channel) 3.9 X.121 ITU T X.121 . a) (prefix) b) (escape) 4. 4.1 OSI(Open System Interconnection) NS(Network Service) 4.2 CONS(Connection mode Network Service) QOS(Quality of Service) 4.3 X.25
17、 DCE(Data Circuit-terminating Equipment) DTE(Data Terminal Equipment) LAP(Link Access Procedure) PLP(Packet Layer Protocol) PSDN(Packet Switched Data Network) RPOA(Recognized Private Operating Agency) 4.4 ISDN AU(Access Unit) ISDN(Integrated Services Digital Network) PH(Packet Handling function) SAP
18、I(Service Access Point Identifier) TA(Terminal Adaptor) TE(Terminal Equipment) X 3510： 2006 5 HLC(Higher Layer Compatibility) 5. 5.1 ISDN ISDN . X.31 . ISDN B H . 5.1.1 ISDN X.31 . Q.931 X.31 . ISDN X.31 . ISDN 1 a) , PSDN , “case B” “case A” . case A ISDN ( ) ( ) ISDN I.231 64 kbit/s . X (X.2, X.12
19、1) , X.25( ) X.32( ) PSDN . case B I.232 ISDN . I.2 . case A B PSDN , case B B D ISDN . 5.1.2 ISDN B H . ( ) ( ) 1 c) . 5.2 ISDN CONS X.223 ISO 8878 X.25 OSI (CONS) . ISDN , X.223 ISO 8878 . S T ISDN CONS 6. . R X.21, X21 bis, V.25 bis TA ISDN X.25 DTE CONS 7. . OSI X.25 PLP . 6. S/T CONS 6.1 TE 1 T
20、E 2/TA CONS TE 1 TE 2/TA ( 1 ). 2 3 1 . CONS ISO/IEC 8208 X.223ISO 8878 . S/T . X 3510： 2006 6 a) B b) A c) ISDN B H TE TA PH AU 1 1 D 2 6.2 B ： 3 6.3.1 B ： 3 6.3.2 B H ： 3 6.4.1 B H ： 3 6.4.2 X 3510： 2006 7 2 ISDN D S, T 3 ISDN B H S, T 6.2 ISDN D TE 1 TE 2/TA CONS case B . ISDN D TE 1 TE 2/TA 2 S
21、T . ISDN I.430 , ISDN I.431 . LAPD Q.921 . ISO/IEO 8208 Q.931 X.25 “ (call offering procedure)” . Q.931 ( ) (D B) . . a) ISO/IEC 8208 256 . b) ISO/IEC 8208 16 kbits/s . X.25 . 6.2.1 ISO/IEC 8208 X.31 SAPI 16 ISDN 2 . . X.223ISO 8878 ISO/IEC 8208 (X.25 PLP) OSI Q.921(I.441) (LAPD) D I.430(I.431) Q.93
22、1(I.451) X.223ISO 8878 ISO/IEC 8208 (X.25 PLP) OSI Q.921(I.441) D Q.931(I.451) KS C 5687 (X.25 LAPB) B H I.430 I.431 X 3510： 2006 8 ISO/IEC 8208 ISDN ( ISDN E.164 , E.164 Escape X.121 ). 6.2.2 ISDN . ISO/IEC 8208 ISDN . 6.2.2.1 . a) TE 1 TE 2/TA “ ” , b) TE 1 TE 2/TA “ ” ISO/IEC 8208 X.31 SAPI=16 IS
23、DN 2 , . 6.2.2.2 . a) TE 1 TE 2/TA “ ” b) TE 1 TE 2/TA “ ” , ISO/IEC 8208 SAPI 16 ISDN 2 . ISDN SAPI 0 SAPI 16 ISDN 2 . ISDN , SAPI 0 , SAPI 16 ( 3. 4. ). ISDN ( 3. 4. ) TE 1 TE 2/TA NS . ISO/IEC 8208 ISDN . 1. X.31 (6.2.2.3.1 4. ). “ SAPI 0 Q.931 . Q.931 SAPI 16 . Q.931 . “ D ” . SAPI 16 SAPI 0 .”
24、2. 1. SAPI 0 SAPI 16 . 3. TE 1 TE 2/TA , Q.931 , , , . ( HLC ) . 4. D , D B . D . 6.3 B . X 3510： 2006 9 6.3 ISDN B TE 1 TE 2/TA CONS ISDN B TE 1 TE 2/TA 3 S T . “ ” SAPI 0 , . ISDN I.430 , ISDN I.431 . D Q.921 ( ) B KS X 3308 ( ). B ISO/IEC 8208 ( ). TE 1 TE 2/TA , 6.1 . case B ISO/IEC 8208 ISDN . case A ISO/IEC 8208 PSDN . 6.3.1 B S T B . 6.3.1.1 TE 1 TE 2/TA . 6.3.1.2 TE 1 TE 2/TA ISDN . case A
