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SENA

Learn about the SENA POSLink series, a solution for connecting credit card payment terminals to Ethernet or broadband internet, enabling secure and fast transaction processing. Discover the benefits, system configuration, and technical details of this efficient payment processing system.

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SENA

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  1. SENA POSLink series Serial-Ethernet connectivity for credit card payment terminals June, 2002 March, 2002

  2. Contents • The Market Opportunity • POSLink 100/400 • Benefits • System Configuration • Technical Details: • Technical Specification • Software Architecture • Hardware Architecture • System Comparison • Legacy off-line payment processing system • IP-based off-line payment processing system • References • Target Customers • Implementation Issues Embedded Connectivity

  3. The Market Opportunity • Broadband Service Providers (in South Korea) • 25M Internet users, 8.9M Broadband households nation-wide (70% of total households, DSL 5.6M, Cable 3.3M), 45M population • USD20~30 per month • Three major providers for DSL & Cable • Credit Card Processors (in South Korea) • 10 processors nation-wide • 1.5M payment terminals in the market • Very competitive market • Limitation • Still locked into dial-up or proprietary leased line • Long processing time for dial-up: 20secs • High monthly service charge for leased line: USD50+ per line per terminal

  4. Internet POSLink 100/400 A box for IP-based off-line credit card payment processing Payment Processing Server Credit card Processor Location Merchant Location POSLink 400 POSLink 100 Merchant LAN Or Broadband line Payment terminal

  5. POSLink 100/400 • Secure transaction • Full SSL Data Encryption for secure credit card transaction • Lightspeed transaction • Overall processing time less than 2 secs • Multiple terminals with single broadband account (POSLink 400) • Remote firmware download & monitoring for payment terminals • Extremely low transition cost • Out-of-box installation without any modification of existing devices: Just hook up & go • Platform alternatives • Firmware based platform with 16bit microprocessor • Linux based platform with 32bit microprocessor

  6. Benefits • Broadband Service Providers • Looking for new revenue sources • Saturated market for households and small offices • More than 1.5M new subscribers that are POS terminals and still increasing • Credit card processors • Strong needs to provide quality services to dominate market • Easy system maintenance with Internet-based remote device & system management • Seamless integration of on-line and off-line payment system • Generate new revenue model with Internet-based services such as on-line lottery & joint promotion with merchants • Merchants • Lower monthly cost for credit card transaction • Fast credit card payment processing time • Easy installation and relocation of payment terminals

  7. Approve payment transaction Request payment authentication Internet Notify transaction complete Initiate payment transaction System Configuration • Enable serial-line based credit-card payment terminals to be connected to Ethernet or broadband Internet • Transaction via TCP/IP with SSL encryption 66.12.89.34 ADSL/Cable ISP Payment Authentication Server ADSL/Cable modem HUB 211.115.67.188

  8. Technical Specification Embedded Connectivity

  9. Serial raw data from/to Serial raw data from/to the payment terminal Serial Serial Communication Communication VDM Emulation data & raw credit info VDM Emulation data & raw credit info VDM VDM Emulation Emulation Raw credit info. Raw credit info. Encryption Encryption Decryption Decryption Encrypted credit info. Encrypted credit info. TCP/IP TCP/IP Encrypted credit info. Encrypted credit info. ADSL ADSL Cable Cable or Ethernet 을 또는 인터넷 사용할 경우 전용선 사용할 경우 PPPoE PPPoE Ethernet & ARP Ethernet & ARP ADSL packet ADSL packet Cable or Ethernet packet Cable or Ethernet packet Software Architecture • Encryption algorithm (SSL, IPSEC) • SSL(Secure Socket Layer) as a basic encryption method • Asymmetric key exchange, Popular method in PC-based credit card transaction • Flexible TCP/IP stack software and the encryption software • Easy-to-customize to customer’s requirement

  10. IP4CAT IP4CAT Credit Credit Card Serial Level Serial Level Authorization Payment MCU MCU RS232 RS232 UART UART Converter Converter Terminal Terminal ROM ROM ( ) 프로그램저장 Internal bus Internal bus RAM RAM ( ) 프로그램메모리 Cable/ADSL Cable/ADSL Ethernet Ethernet Modem, Modem, Ethernet Ethernet Controller Controller Router Router Hardware Architecture POSLink

  11. System Comparison Legacy off-line payment processing System • Phone-line based system • Charge per transaction • The more the transaction, The higher the maintenance cost • Slow overall processing time for payment terminal • No data encryption required • Proprietary leased-line based system • Flat rate but expensive • Fast overall processing time compared to phone-line • No data encryption required • Leased line service providers do not invest for infrastructures PSTN/Leased Line Modem pool PSTN Modem Leased Line Modem

  12. System Comparison IP-based off-line payment processing system • Connect to Ethernet or broadband Internet (ADSL, Cable) • Flat & lower monthly rate • Fast overall processing time • Benefits from the shared line connection • Secure transaction is the key • Data Encryption: Industry standard SSL (Secure Socket Layer)

  13. System Comparison In Korean market Phone-line Proprietary leased-line Internet (ADSL, Cable) Monthly Fee Charged by the number of phone calls = 4 cents/call Flat rate per line = $65 for 4 line multiple Flat rate per line = $23/month Transaction Time 20 sec 5 sec 2 sec Comment For low-volume transaction & Small retail shop • For large-scale retailer • Saturated infrastructure but no investment plan by service providers • Good for high-volume transaction • Good for existing Internet users

  14. References • KMPS: processor & acquirer • Field test at merchants location completed with 16bit-based POSLink100 • 16bit-based POSLink400 • Payment terminal by domestic manufacturer • Close an initial supply contract of POSLink100 • KFTC: processor & acquirer • Feasibility test with 32bit & Linux based POSLink • IDphone: Payment terminal manufacturer • Demonstration for other 7 domestic processors with payment server emulation software

  15. Target Customers • Credit card processors and acquirers • Payment terminal manufacturer • POS system integrator or value added resellers • Broadband service providers • Merchants as end users

  16. Implementation Issues • Communication with authorization server • For servers that doesn’t support SSL • The authentication server for credit card payment processing may have to be modified for server-side data encryption/decryption for the case of legacy dial-up & leased line based server. • SENA’s tool kit with standard SSL • For servers that supports SSL • No server-side job required • Legacy POS terminal interface • Serial interface with POS terminal • Dial-up only terminals without any serial port • Dial-in interface is to be supported according to the payment terminal

  17. Contact SENA SENA Technologies, Inc. info@sena.com Phone:+82-2-529-7025 Fax: +82-2-573-7710 Web Address: http://www.sena.com 210 Yangjae-dong Seocho-gu Seoul 137-130, South Korea

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