JARINGAN INFORMASI MANUFACTURING

Onno W. Purbo
Computer Network Research Group
Inter University Center on Microelectronics
Institute of Technology Bandung
Bandung 40132
FAX: 62-22 214-417
E-mail: yc1dav@itbgtw.itb.ac.id

ABSTRACT
		In this paper, the development of computer network in Indonesia will be reported. Research work on computer networking & information technology is presented. Various applications including integrated manufacturing system will be proposed. 

THE INDONESIA NETWORK STATUS IN MID NOVEMBER 1994

Figure 1. Network Topology as of November 1994.

  •	A total of 68 major nodes are in operation with 46 (68%) of which are located in Bandung; the rest (32%) are spread all over Indonesia including Jakarta.
  •	Most (80%) are using the low cost packet radio technology to form a WAN, the rest (20%) mostly in Jakarta are using dial-up UUCP / TCP/IP to reach the InterNet gateway in Jakarta / abroad.
  •	At least 52 nodes are preparing their equipments and human resources to join the network.
  •	The estimated total user is 2769 users with 71.6% are at universities, 16.6% in research institutions, 3.8% NGO, 3.3% in government institutes, and 4.7% commercial/industries.
  •	Approximately 56.7% of total users reside in Bandung (48% are users of ITB).
  •	Major applications are 4 major electronic mailing lists, 14 major newsgroups & Gopher servers.
  •	Estimated growth rate is 700% per year.

MAJOR APPLICATIONS
  •	Electronic Mail
	   	Estimated current traffic is 500K-1Mbyte/day.
  •	Electronic Conferences
	   	A total of close to 20 electronic conferences.
	   	At least 2 conferences are connected to InterNet.
  •	File transfer
	   	At least 7 FTP sites for public access (4 of which in Bandung).
	   	Estimated total FTP space is 3 Gigabyte.
  •	Telnet
	   	Remote login facility.
  •	Database access
	   	At least 4 gopher servers in operation in the network.
	   	Major information is research results.

ARCHITECTURE

Figure 2. Network Architecture.

Figure 3. Typical set-up.

INTEGRATED MANUFACTURING

Characteristics of Several Applications
	Type	Characteristics	Density	Responds (sec)	
Office	Messages	Bursty	High	2-6	
	Memo				
	Report				
CAD	Screen-Refresh	Bursty	Very High	2-5	
Industry	Program	Mixed	High	0.5-2	
	Monitoring				
	Status				
Process	Program	Periodic	Medium	0.01-0.5	
	Message				
	Process				

Figure 4. An integrated manufacturing plant.

COMMUNITY DEVELOPMENT

Figure 5. Community-based Development aided by information technology.

HOME MADE PHYSICAL LAYER
Some prototypes developed in Indonesia are:

Figure 6. Packet Interface Card for High-Speed Networking
  •	A simple AFSK modem 1200bps - it is currently under mass-production in Indonesia.
  •	Microprocessor based AX.25 Packet Assembly Disassembly (PADS) also known as Terminal Node Controller (TNC).
  •	1200bps PSK modem.
  •	FSK and GMSK 9600bps modem.
  •	AX.25 HDLC card for high speed (up to 256Kbps) packet radio systems.
  •	High-speed 64Kbps modems for packet radio network.
  •	Radio and transverter for packet radio systems.

ADVANCED NETWORKING IN INDONESIA
  •	Satellite based 300bps packet radio network via Palapa satellite to integrate at least eleven eastern Indonesian Universities.
  •	International TCP/IP experiment via ETS-V geostationary satellite to Communication Research Lab, Khashima, Japan.
  •	Set-up of Low Earth Orbit satellite ground station at ITB.
  •	Initial study to build a low earth orbit satellite at ITB.

SOFTWARE DEVELOPMENT EFFORT
  •	Development of software interface between Network Operating System (NOS) TCP/IP packet radio and UUCP network (via telephone line). This software includes the interface for E-mail and news services.
  •	Enhancement of the currect TCP/IP Network Operating System (NOS), such as, capability to handle multiple alias in the E-mail, enhancement in Routing Information Protocol (RIP) routines for properly handling the broadcast RIP.
  •	Software for traffic counting both E-mail as well as packet.

SUMMARY
  •	The implementation of TCP/IP-based packet radio technology to integrate various universities and institutions into the first Indonesia's national InterNet Wide Area Network (WAN) is described.
  •	Estimated growth rate is 700% with currently at least 2700 user, 71.6% are at universities, 16.6% in research institutions, 3.8% NGO, 3.3% in government institutes, and 4.7% commercial /industries.
  •	Most (80%) are using the low cost packet radio technology to form a WAN.
  •	Various efforts include TCP/IP software development, HDLC X.25 card, various modems (PSK, AFSK, GMSK and high speed MSK) are presented.
  •	Various advanced networking experiments, such as, the building of 300bps packet radio via satellite, the development of LEO satellite ground station as well as the effort to design and build a LEO Microsat, is reported.

ACKNOWLEDGEMENT
  •	IPTEK-NET funded by The Indonesian National Research Council (DRN).
  •	PT. Hollycommindo Hitech, Jakarta funded HF SSB 1200bps PSK network.
  •	German Aerospace Research Establishment (DLR) sponsored JASIPAKTA.
  •	Canadian International Development Agency (CIDA) funded Eastern Indonesia University Development Project (EIUDP).
  •	United Nations Development Programme (UNDP) funded Sustainable Development Network (SDN).
  •	Australian International Development Aid Bureau (AIDAB) funded:
	  	Indonesia Australia University Project.
	  	ASEAN-Australia Economic Cooperation Program.

Onno W. Purbo, best student graduated from the electrical engineering department at Institute of Technology Bandung (ITB) in 1987. Received his M.Eng in semiconductor laser and fiber optics from McMaster University, Canada in 1989. His Ph.D in Silicon Devices and Integrated Circuits was granted from University of Waterloo, Canada in 1993. He has published a total of 8 papers in international journals and more than 17 papers in international conferences. A total of more than 70 publications in the last 5 years. In 1992, listed in a book "American men and women of science". Currently active as:
  •	Academic staff at Electrical Engineering Department ITB.
  •	Head of computer network research group at IUC Microelectronics ITB.
  •	Principal investigator for the development of a high speed 56Kbps packet radio computer network.
  •	Consultant for the development of information system at:
	   	Ministery of Education and Culture
	   	Ministery of Forestry.
	   	The Metropolitan Area Jakarta.
  •	Indonesian node coordinator for academic community for developing Sustainable Development Network (SDN) - United Nation Development Program (UNDP).
  •	Country coordinator for YB-NET, Amateur Packet Radio TCP/IP Network under Class B IP address 44.132.
  •	BANDUNG-NET Coordinator (part of Paguyuban Network) under Class B IP address 167.205.
  •	Member of several task force within ITB, such as:
	   	Development of Microsat.
	   	Development of ITB-NET.
	   	Development of Library.
His research interest mainly in developing packet radio technology especially for TCP/IP computer network. He also actives research in Integrtated Circuit technology and microelectronics.