1. Reference Document1 Information about Connectivity Methods A presentation by Kaihatsu Techno Centre Pvt. Ltd. As a reference document for their customers Version 1.0, 2002 http://www.ktcpl.com This presentation is a property of Kaihatsu Techno Centre Pvt. Ltd. This is intended for the restricted use for the customers and prospective clients of Kaihatsu Techno Centre. This is a reference document only. The information given in this presentation is correct up-to the knowledge of the company. However this information is only for reference and can not be used by any one against Kaihatsu Techno Centre for any legal matters. The use of this document is only for general guidelines about selecting the best possible network link for his/her application. This presentation can not be considered for any loss of data or any other loss. This presentation must be utilised in full with total 24 pages. This presentation or the writer or Kaihatsu Techno Centre can be held responsible for any loss what so ever. The pricing given in this document may vary depending on the market situation. The pricing is given for comparison only and it should not be treated as an offer from Kaihatsu Techno Centre Pvt. Ltd. This presentation has 24 pages including this one. The figures, symbols and names used in this presentation is a trade mark property of respective individual or company.

2. Reference Document2 Basics Local Station 1 Local Station 2 Central Station In this presentation we are discussing about communication between local station & central station. The communication between local station & instruments is not In the scope. Please refer a separate document for the same.

3. Reference Document3 Methods of Connectivity Connectivity Other WireCopper WiredWireless Local PrivatePublic Fiber Optics PrivatePublic RS 232 RS 232 MD RS 232 DC RS 485 LAN Leased Line Intercom Telephone Hot Line Infra Red RF VHF/UHF GSM/CDMA(S) GPRS Blue Tooth Wireless LAN PLCC GSM/CDMA(D) RF HF Satellite

4. Reference Document4 Connectivity Comparison Connection TypeRS 232 C (One to One Connection) General DescriptionPhysical 9 pin wire connects two PCs on serial port Drivers Available from Kaihatsu?Yes Maximum Baud Rate?115,200 bits per second Maximum Distance?10 meters Any Government Permissions?No Reliability?Very high Real Time Data?Yes Security?Very high AdvantagesSimple, Cheapest, Real time data DisadvantagesLow Baud rate as compared to LAN, for multiple local stations serial ports may not be available on PC Approx. One Time CostRs. 150/- for cable. If the serial ports are not available then, serial port card will cost Rs. 1,200/- extra Approx. Recurring CostNil RemarksNil

5. Reference Document5 Connectivity Comparison Connection TypeRS 232 MD Multi Drop (Many to One Connection) General DescriptionPhysical 9 pin wire connects two PCs on serial port Drivers Available from Kaihatsu?Yes Maximum Baud Rate?115,200 bits per second Maximum Distance?10 meters Any Government Permissions?No Reliability?Compromised Real Time Data?Yes Security?Very high AdvantagesSimple, Cheapest, Real time data DisadvantagesLow Baud rate as compared to LAN, All stations must communicate on same baud rate. Maximum eight connections. Short Range Approx. One Time CostRs. 150/- for cable per connection. If the serial ports are not available then, serial port card will cost Rs. 1,200/- extra Approx. Recurring CostNil RemarksNil

6. Reference Document6 Connectivity Comparison Connection TypeRS 232 DC Daisy Chained (Many to One Connection) General DescriptionPhysical 9 pin wire connects two PCs on serial port Drivers Available from Kaihatsu?Yes Maximum Baud Rate?115,200 bits per second Maximum Distance?10 meters Any Government Permissions?No Reliability?Compromised Real Time Data?Yes Security?Very high AdvantagesSimple, Cheapest, Real time data DisadvantagesLow Baud rate as compared to LAN, Maximum eight connections. The chain needs two serial ports per connection. Short range. Approx. One Time CostRs. 150/- for cable per connection. If the serial ports are not available then, serial port card will cost Rs. 1,200/- extra Approx. Recurring CostNil RemarksNil

7. Reference Document7 Connectivity Comparison Connection TypeRS 485 (Many to One Connection) General DescriptionPhysical 3 pin wire connects two PCs on serial port Drivers Available from Kaihatsu?Yes Maximum Baud Rate?19,600 bits per second Maximum Distance?1,200 meters (1.2 km) Any Government Permissions?No Reliability?Compromised Real Time Data?Yes Security?Compromised AdvantagesSimple, Cheapest, Real time data DisadvantagesLow Baud rate as compared to LAN, Maximum thirty two connections. Approx. One Time CostRs. 150/- for cable per connection. RS 232 to Rs 485 converter Rs. 5,000/- Approx. Recurring CostAs the distance increases the baud rate decreases. At 1.2 km it is 300 bps RemarksNil

8. Reference Document8 Connectivity Comparison Connection TypeLAN Local Area Network (Many to One Connection) General DescriptionPhysical 8 pin wire connects two PCs on LAN port with hub in between Drivers Available from Kaihatsu?Yes Maximum Baud Rate?10 Mbps or 100 Mbps or 1 Giga byte (if used Giga byte LAN) Maximum Distance?100 meters Any Government Permissions?No Reliability?High Real Time Data?Yes Security?high AdvantagesSimple, Cheapest, Real time data DisadvantagesDistance Approx. One Time CostRs. 550/- for cable per connection. Rs. 10,000 for a hub Approx. Recurring CostNil RemarksNil

9. Reference Document9 Connectivity Comparison Connection TypeLeased Line (One to One Connection) General DescriptionPhysical two or four pair wire is laid between two PCs and they are connected using leased line modems. One of the modem is set on ‘originator’ of carrier while other is set on ‘receiver’ of carrier. Drivers Available from Kaihatsu?Yes Maximum Baud Rate?128,000 bits per second Maximum Distance?5,000 meters (5.0 km) Any Government Permissions?No Reliability?Very high Real Time Data?Yes Security?Very high AdvantagesHighly reliable, highly secure, Real time data DisadvantagesCost Approx. One Time CostRs. 650/- for cable per km. Rs. 22,000/- for modems Approx. Recurring CostNil RemarksNil

10. Reference Document10 Connectivity Comparison Connection TypeIntercom (One to One Connection) General DescriptionPhysical two or four pair wire is laid between PCs and they are connected using telephone line modems. One intercom box is connected for all stations Drivers Available from Kaihatsu?Yes Maximum Baud Rate?9,600 bits per second Maximum Distance?5,000 meters (5.0 km) Any Government Permissions?No Reliability?Very low Real Time Data?No Security?low AdvantagesCheaper solution for long distance DisadvantagesNon reliable, low baud rate Approx. One Time CostRs. 1,500/- for modem. Rs. 5,000/- for intercom Approx. Recurring CostNil RemarksMany intercoms only support audio communication. Hence proper intercom selection supporting digital data transfer is needed

11. Reference Document11 Connectivity Comparison Connection TypeTelephone (Public Switching Telephone Network) One to One Connection General DescriptionPCs are connected using telephone line modems. Drivers Available from Kaihatsu?Yes Maximum Baud Rate?56,400 bits per second Maximum Distance?unlimited Any Government Permissions?Yes – getting telephone line Reliability?Low (Based on telephone exchange) Real Time Data?No Security?low AdvantagesCheaper solution for long distance DisadvantagesNon reliable, low baud rate, high recurring cost Approx. One Time CostRs. 1,500/- for modem. Approx. Recurring CostRs. 1.5/- per data transfer RemarksNil

12. Reference Document12 Connectivity Comparison Connection TypeHot Line (One to One Connection) General DescriptionPCs are connected using telephone line modems. Drivers Available from Kaihatsu?Yes Maximum Baud Rate?56,400 bits per second Maximum Distance?Unlimited Any Government Permissions?Yes Reliability?Low (Based on telephone exchange) Real Time Data?Yes Security?low AdvantagesCheaper solution for long distance real time data DisadvantagesNon reliable, low baud rate, high recurring cost Approx. One Time CostRs. 1,500/- for modem. Approx. Recurring CostAnnual Rental charges based on distance RemarksNil

13. Reference Document13 Connectivity Comparison Connection TypePower Line Carrier Communication (Many to One Connection) General DescriptionPCs are connected using PLCC modems. The data is transferred through power line Drivers Available from Kaihatsu?Yes Maximum Baud Rate?300 bits per second Maximum Distance?300 meters Any Government Permissions?No Reliability?Low (Based on mains harmonics generated by other devices) Real Time Data?Yes Security?compromised AdvantagesCheaper solution, No extra wiring. DisadvantagesNon reliable, low baud rate, small distance Approx. One Time CostRs. 7,500/- for modem. Approx. Recurring CostNil RemarksData can not cross over the mains transformer

14. Reference Document14 Connectivity Comparison Connection TypeOptical Fibber Communication [OFC] (One to One Connection) General DescriptionPCs are connected using OFC Converter. The data is transferred through Fibber Optics Cables Drivers Available from Kaihatsu?Yes Maximum Baud Rate?1 Giga byte Maximum Distance?5,000 meters (5 km) – without repeater. Unlimited with repeater Any Government Permissions?No Reliability?Very High Real Time Data?Yes Security?Very High AdvantagesTechnically best solution, high baud rate, high relliability, high security and real time DisadvantagesCost Approx. One Time CostRs. 19,000/- for Fibber Optics Converter. Rs. 65/- per meter is Optical fibber Approx. Recurring CostNil RemarksNil

15. Reference Document15 Connectivity Comparison Connection TypeInfra Red Communication [IR] (One to One Connection) General DescriptionPCs are connected using Infra Red Port. Drivers Available from Kaihatsu?Yes Maximum Baud Rate?4 Mega byte Maximum Distance?10 centi meters Line of site Any Government Permissions?No Reliability?High Real Time Data?Yes Security?Very High Advantages high baud rate, high reliability, high security and real time DisadvantagesShort distance Approx. One Time CostRs. 2,000/- for IR port if not available in built with PC Approx. Recurring CostNil RemarksNil

16. Reference Document16 Connectivity Comparison Connection TypeRadio Frequency VHF/UHF band (One to One Connection) 300 MHz to 800 MHz General DescriptionPCs are connected using RF Modem. Drivers Available from Kaihatsu?Yes Maximum Baud Rate?14,400 bps Maximum Distance?800 meters without antenna, 5 km with antenna. Line of Site Operation Any Government Permissions?Yes, WPC VHF band 10 mW power 25 kHz channel separation Reliability?Compromised Real Time Data?Yes Security?Compromised Advantages Real time without wiring DisadvantagesGovernment approvals and low baud rate Approx. One Time CostRs. 4,000/- for RF modem, Rs. 5,000 for antenna Approx. Recurring CostSmall license fee per year RemarksNil

17. Reference Document17 Connectivity Comparison Connection TypeRadio Frequency HF band (One to One Connection) 12 MHz to 47 MHz band General DescriptionPCs are connected using RF Modem. Drivers Available from Kaihatsu?Yes Maximum Baud Rate?14,400 bps Maximum Distance?75 km with antenna Any Government Permissions?Yes, WPC HF band Reliability?Compromised Real Time Data?Yes Security?Compromised Advantages Real time without wiring DisadvantagesHigh cost, Government approvals and low baud rate Approx. One Time CostRs. 45,000/- for RF modem, Rs. 35,000 for antenna Approx. Recurring CostLicense fee per year RemarksNil

18. Reference Document18 Connectivity Comparison Connection TypeBlue Tooth (One to One Connection) 2.5 GHz band General DescriptionPCs are connected using blue tooth dongle. Drivers Available from Kaihatsu?Yes Maximum Baud Rate?4 MHz Maximum Distance?25 centimeter Any Government Permissions?No Reliability?Very high Real Time Data?Yes Security?Very high Advantages Real time without wiring & approvals DisadvantagesLow range Approx. One Time CostRs. 4,500/- Blue tooth dongle Approx. Recurring CostNil RemarksNil

19. Reference Document19 Connectivity Comparison Connection TypeWireless Local Area Network (Many to One Connection) 2.5 GHz band General DescriptionPCs are connected using blue tooth dongle. Drivers Available from Kaihatsu?Yes Maximum Baud Rate?4 MHz Maximum Distance?300 meters Any Government Permissions?No Reliability?Very high Real Time Data?Yes Security?Very high Advantages Real time without wiring & approvals DisadvantagesLow range & cost Approx. One Time CostRs. 4,500/- Blue tooth dongle + Rs. 18,000 for wireless hub Approx. Recurring CostNil RemarksNil

20. Reference Document20 Connectivity Comparison Connection TypeSatellite (One to One Connection) 9.5 GHz (ku) band General DescriptionPCs are connected using satellite dish. Drivers Available from Kaihatsu?Beta version Maximum Baud Rate?1 G bite per sec Maximum Distance?unlimited Any Government Permissions?yes Reliability?Very high Real Time Data?Yes Security?Very high Advantages The best in wireless communication. High reliability, high security, real time data, high speed and no range restriction Disadvantagescost Approx. One Time CostRs. 1,00,000/- per terminal Approx. Recurring CostChannel license fee RemarksNil

21. Reference Document21 Connectivity Comparison Connection TypeGlobal System for Mobile/Code Division Multiple Access (GSM/CDMA) Short Messaging Service (SMS) based connectivity (One to One Connection) 900 MHz band General DescriptionPCs are connected using GSM modems. The data is transferred through Short Message Service calls Drivers Available from Kaihatsu?Yes Maximum Baud Rate?14,400 bps Maximum Distance?unlimited Any Government Permissions?Yes getting GSM connection Reliability?Very high Real Time Data?No Security?Compromised AdvantagesLow cost, long distance reliable without Government permissions communication DisadvantagesBased on network coverage area Approx. One Time CostRs 12,000 per terminal Approx. Recurring CostRs. 3/- per data transfer RemarksNil

22. Reference Document22 Connectivity Comparison Connection TypeGlobal System for Mobile/Code Division Multiple Access (GSM/CDMA) Digital File Transfer based connectivity (One to One Connection) 900 MHz band General DescriptionPCs are connected using GSM modems. The data is transferred through Data call file transfer technique Drivers Available from Kaihatsu?Yes Maximum Baud Rate?14,400 bps Maximum Distance?unlimited Any Government Permissions?Yes getting GSM connection Reliability?Very high Real Time Data?No Security?Compromised AdvantagesLow cost, long distance reliable without Government permissions communication DisadvantagesBased on network coverage area Approx. One Time CostRs 12,000 per terminal Approx. Recurring CostRs. 3/- per data transfer RemarksNil

23. Reference Document23 Connectivity Comparison Connection TypeGeneral Package Reading Service (GPRS) based connectivity (Many to One Connection) 900 MHz band General DescriptionPCs are connected using GSM/ GPRS modems. The data is transferred through TCP/IP file transfer technique Drivers Available from Kaihatsu?Yes Maximum Baud Rate?14,400 bps Maximum Distance?unlimited Any Government Permissions?Yes getting GSM connection Reliability?Very high Real Time Data?Yes Security?Compromised AdvantagesLow cost, long distance reliable without Government permission. Real time data DisadvantagesBased on network coverage area Approx. One Time CostRs 12,000 per terminal Approx. Recurring CostNormal monthly fees of Rs. 800/- approx. RemarksNil

24. Reference Document24 Wish you all the best for selecting the proper connectivity By: Kaihatsu Techno Centre Pvt. Ltd This presentation is a property of Kaihatsu Techno Centre Pvt. Ltd. This is intended for the restricted use for the customers and prospective clients of Kaihatsu Techno Centre. This is a reference document only. The information given in this presentation is correct up-to the knowledge of the company. However this information is only for reference and can not be used by any one against Kaihatsu Techno Centre for any legal matters. The use of this document is only for general guidelines about selecting the best possible network link for his/her application. This presentation can not be considered for any loss of data or any other loss. This presentation must be utilised in full with total 24 pages. This presentation or the writer or Kaihatsu Techno Centre can be held responsible for any loss what so ever. The pricing given in this document may vary depending on the market situation. The pricing is given for comparison only and it should not be treated as an offer from Kaihatsu Techno Centre Pvt. Ltd. This presentation has 24 pages including this one. The figures, symbols and names used in this presentation is a trade mark property of respective individual or company.