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NISDN (Narrow Band ISDN)

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Presentation on theme: "NISDN (Narrow Band ISDN)"— Presentation transcript:

1 NISDN (Narrow Band ISDN)
ISDN = Integrated Services Digital Network Sentral Digital, Transmisi Digital, akses masih analog NISDN: Digitalisasi akses menjadi 64 kbps

2 Bandwidth Broadband services Narrowband Services
Bandwidth didefinisikan sebagai kemampuan kanal yang dapat melalukan data dengan kecepatan tertentu.Dalam sirkit dijital besarannya diukur dalam Bit Per Second (Bp/s) yang biasa disebut denga kecepatan transmisi. Untuk sistem analog diukur dengan Hertz (Cycle per second) Broadband services Broadband services didefinisikan sebagai “layanan telekomunikasi yang membutuhkan kanal transmisi lebih besar dari 2 Mbps (E1)” Atau: Jaringan digital yang dapat melayani apa saja: jasa data kecepatan tinggi, videophone, videoconference, transmisi grafis resolusi tinggi, CATV, termasuk juga jasa sebelumnya seperti telepon, data, telemetri dan faksimile Narrowband Services Narrowband services didefinisikan sebagai layanan telekomunikasi yang membutuhkan kanal transmisi yang relatif senpit bandwidthnya atau lebih kecil dar 2 MB/s. Prepared by

3 Inter-LAN / PBX communication
Bandwidth for different services Telephony Voice Braodcast Videoconference TV and HDTV Video Video Inter-LAN / PBX communication Data FAX CAD Graphic 10 KB/s 100 KB/s 1 MB/s 10 MB/s 100 MB/s Prepared by

4 Practical Limit on 24-Gauge TW Pair Bandwidth Limit (one way)
Designation Bandwidth Limit (one way) Distance Limitation DS 1/TI E1 DS 2 E2 ¼ STS-1 ½ STS-1 STS-1 1.544 MBps 2.048 MBps 6.312 MBps 8.448 MBps MBps MBps MBps feet feet feet 9.000 feet 4.500 feet 3.000 feet 1.000 feet Prepared by

5 Integrated Services Digital Network (ISDN)
C P E Digital Switch 64 Kb/s NT 144 Kbit/s 2B + D ISDN IU Twisted Copper Pair Access Network ISDN TLP 2 Mb/s 64 Kb/s C P E Digital Switch 64 Kb/s NT 144 Kbit/s 2B + D ISDN IU Twisted Copper Pair Access Network ISDN TLP

6 ISDN digunakan karena pada switching digital umumnya terjadi pergerakan signal 64 Kb/s dari satu lintasan signal 2Mb/s ke lintasan lain, selain dari pada itu content yang terdapat pada 64 Kb/s dapat berupa speech, data atau video. Dengan sistem ISDN memungkinkan Customer melalui kabel tembaga mengirim berbagai signal pada jaringan switching telephone pada rate 64 Kb/s. Jadi dengan cara itu ISDN dapat memberikan pertukaran informasi dari Customer Premises yang satu kepada Customer Premises lainnya dengan sistem switching 64 Kb/s.

7 Terdapat 2 jenis access layanan ISDN
Basic Rate Interface (BRI) atau Basic Rate Access (BRA) dikenal dengan 2B+D Sistem ini terdiri dari 2 bearer 64 Kb/s untuk transmisi informasi dan 1 kanal signaling 16 Kb/s, digunakan unutk hubungan yang sederhana. 2. Primary Rate Interface (PRI) atau Primary Rate Access (PRA) dikenal dengan 30B+D yaitu terdiri dari 30 bearer channels pada rate 64 Kb/s dan 1 signalling cahnnel 16 Kb/s, umumnya digunakan untuk sistem yang lebih kompleks misalnya beberapa PABX dan hubungan komputer dengan kapasitas besar.

8 NT LE NT PABX Basic Rate Access ( 2B + D ) ( 30B + D )
ISDN TLP ( 30B + D ) Primary Rate Access 30B + D PABX ISDN TLP

9 Telecommunication Service
Barrier Service TeleService Basic Barrier Service + Supplementary Services Basic TeleService Basic TeleService + Supplementary Services Basic Barrier Service

10 N-ISDN Basic ISDN Concepts PBX NT PSPDN PSTN TA BRA PRA FAX 2B+D 30B+D
Passive bus PSPDN PSTN TA

11 IN Reference model and Interface
ISDN TERMINAL S T U V NT2 NT1 LT ET R TA Basic Rate KBps Primary Rate 2048 Kbps TE 2 NON-ISDN TERMINAL Non ISDN Standard

12 Terminology ET TE 1 TE 2 NT 1 NT 2 TA R S T U V Exchange Terminal
Terminal type 1, digital or ISDN terminal TE 2 Terminal type 2, non ISDN terminal NT 1 Network Terminal type 1, connect ISDN Subscriber with netwrok NT 2 Network Terminal type , connect non-ISDN Subscriber with netwrok via TA TA Terminal Adaptor, connect ISDN with non-ISDN subcriber R Interface non ISDN termina with network S Interface between NT 2 and ISDN terminal T Interface between NT 2 and NT 1 U InterfaceInterface between NT 1 and LT V Interface between LT and ET

13 Three types ISDN standard bearer services :
3.1 KHz audio, used in modemtrafficand in intercommunication with non-ISDN services. 64 Kbpsunrestricted, providing a transparant 64 Kbps connection (no echo suppresor & bit manipulation). Speech, 64 Kbps voice connection, tranparancy is not guarranted. The examples of teleservice : Telephony 3.1 KHz and Telephony 7 KHz Telefax group2/3 and telefax group 4 Video Text Video telephony

14 ISDN Basic Service Circuit Switch Modes 64 Kbps, unrestricted 64Kbps, for speech 64 Kbps, for audio3,1 Khz Alternative speech / 64 Kbps, unrestricted 2 X 64 Kbps, unrestricted 384 Kbps, unrestricted 1536 Kbps, unrestricted 1920 Kbps, unrestricted For circuit switched data For conversi to analog For transfer of data during a speech call Packet Switched Mode Virtual and permanent - virtual circuit Connectionless User signalling

15 ISDN Teleservice Telephony Teletext Telefax 4 (Fax Group 4) Mixed mode doc transfer Videotext Telex

16 ISDN Supplementary Services
Number Identification : Direct Dialling Multiple subcriber number Calling Line Identificatin Presentation (CLIP) Calling Line Identificatin Retriction Connected line Identification Presentation Connected line Identification Restriction Malicious call Idebtification Sub Adressing Call Offering Call transfer Call forwarding Busy Call forwarding No Reply Call forwarding unconditional Call Deflectyion Line Hunting

17 ISDN Supplementary Services (Cntonued)
Call Completion Call waiting Call Hold (allow call tobe interrupted and re-established) Call completion to busy subcribers Multi Party : Conference Calling Three party Service Community Interest : Closed User Group (terbatas hanya untuk anggota grup, dengan fasilitas tambahan) Private Numbering Plan Charging : Credit Card Calling Advice of Charge Reverse Cahrging Additional information transfer : User to user Signalling

18 processors, group switches,etc
Switcging and switch Control PSTN and ISDN are ussualy combinedto form dual in which theu usethe same resources. Since both digitised are 64 Kbps circuit switching, the two netwqork can share subscriber switches as well as group switch equipment. ISDN PSTN SS-7 Application local local STP Transit Transit Common Functions : processors, group switches,etc Platform Figure of Outline PSTN and ISDN exchange

19 Local Exchange in PSTN/ISDN
(8) Switching Part Group Switch ETC To other network or exchange (9) Subscriber stage (10) Access server To local Internet router (2) Signalling Equipment (1) Control systems Signalling (3) O & M Switch Control (4) (6) Charging Supllementary Services (5) (7) Subscribers Data

20 Legend : (1). The access circuit (2). Digital line board for connection of digital access (3). The analysis of signalling (4). The switch control will be much more complex, (5). Others supplementary services (6). Charging function is more complicated. (7). Subscribers data for different types of terminal. (8). Capable for interworking witch other ISDN Exchange (9). Some are equiped with X.25 traffic or B or D channels. (10). Access for internet

21 INTELLIGENT NETWORK An Intelligent Network consist of a number of basic elements, the switching and transmission facility to carry the call traffic. The additional part of IN are : Additional processing associated with the basic switch. Information resourcesthat are necessary for the provision of special features. Service contreol facility that control the provision ofspecial features and services- the basic network and the information resources are used to provide these services.

22 Simple diagram of Intelligent Network SWITCH SWITCH Data Base
TERMINAL Interface A Manage services: billing, authorization, and monitoring Interface B Service Management System Data Base Handle data base interrogation and contol routing Service Control Point Recorded announcement facility Intelligent Perpheral Interface C SWITCH SWITCH

23 INTELLIGENT NETWORK SERVICES
The main focus of standardisation is definition of SIB ( Service Independent Building Blocks) as a functionality provided by Data Base, for examples : Announcement Notification announcement complete Collect user information Charging information Traffic measurement Insert data, modify data Time dependent/independent decision Screening

24 Example of Intelligent Network Services :
Free call (advance free phone call) Credit call (Credit card calling) Universal acess number (Unicall) Televoting (Vote call) VPN (Virtual Private Network) Premium rate UPT (universal Personal Telecommunication) Three way services Emergency Services Intelligent Access and Routing.

25 Free call Caller special number eg. 0800 Credit call (Credit card calling) The customer automaticall;y charge on bank or credit card account Universal acess number (Unicall) Aloows the subscriber with several terminating in any number of location to be reach with unique number. Televoting (Vote call) Voting via telephone call to deliver an opinion. VPN (Virtual Private Network) Assign circuit when calls are in progress, Sharing transmission, 2Mbps switch, numberingplan for private network Premium rate Wide vrietyof informationcan get from numerous information provider UPT (universal Personal Telecommunication) To give user ability to make and receive calls at any point on any number of fixed networks. Three way services Three party communication Emergency Services Incidental service call, may direct to hospital. Intelligent Access and Routing. Can choose routingaver available networks that make best to use as option.

26 ISDN Standard : IN Standard : Prepare by : ITU-T (CCITT) and
ETSI ( European Telecommunication Standardization Institute) IETF ( Internet Engineering Task Force ) IN Standard : Prepare by : ITU-T (CCITT) and ETSI( European Telecommunication Standardization Institute)

27 Terima kasih dan Selamat Belajar


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