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Application Note:

Low cost Phone Line Concentration For POS Terminals

The Gateway product line has been expanded with the Secondary Dial application to provide concentration for remote terminals' phone lines.


Dual Mode Connectivity Solution

Migration to a native IP network often involves a lag before all of the different processors have completed the conversion of their async applications to IP. This means that a POS terminal needs both IP and async connectivity to support all of the supported payment methods. The extra costs for the phone lines required for the async connection add up when applied to a chain of stores or restaurants.

The new Secondary Dial application consolidates the phone lines normally installed at each POS into a handful of lines at a central location. This consolidation can save thousands of dollars a month in extra phone lines, providing a tremendous cost savings.

The POS terminal connects to the JBM Gateway via RS-232, internal modem or Ethernet. The Gateway automatically converts the data to the proper format for the application and routes the data to the correct destination. If the data needs to be sent to an async-only processor, then a central site Gateway will provide the conversion back to async and the connection to the processor. Only a handful of phone lines are required for to provide the async links.

When using a JBM Gateway, you can be assured that your conversion can be implemented quickly since JBM Electronics is the industry leader in protocol conversion. Converting the Visa I or II protocol or any other legacy protocol to IP is a straightforward process for JBM.

If security is a concern, don’t worry. The Gateway product line supports SSL or VPN with dynamic keys, 3DES encryption, and extensive Firewall capabilities. Best of all our Gateways are compatible with any standards-based VPN host.

 

Operation

The Gateway at the ATM or POS terminal will route the data from the terminal based upon the phone number or data. The data will be converted to TCP. Then, based on the path, the TCP data will be delivered to either an IP-based host processor application, or to a central site Gateway. The central site Gateway will dial the remote processor and transfer the data using async modems.

The central site Gateway can use external, customer-supplied modems or a Gateway 1000 with a RAS card. With either connection type, the basic operation is the same. The phone number of the remote processor is sent as part of the IP message from the edge Gateways. The central Gateway will convert the data back to async and dial the phone number. When the connection is established, the data is transferred to the remote processor. The response will be routed back to the originating edge Gateway for delivery to the terminal.

The modem connections can be optimized to improve connection times. The modem can be defined with a single connect speed or defined for speed negotiations through AT Commands. If a RAS connection is used, then additional tuning options are available.

Faster response time can be achieved if the Central Gateway is located at the remote processor and connected directly to the host. This topology will eliminate the time required for the modem call establishment, cutting several seconds from the connection. The Gateway’s port emulates a modem to the host processor, providing a seamless installation.

Fallback IP routing can be used if the primary central Gateway is not available. This capability allows several smaller Gateways to be geographically dispersed for Disaster Recovery and additional availability.


Key Benefits and Features of Using a JBM Gateway For Protocol Conversion

  • Eliminate expensive Dial-Up circuits
  • Improve network management
  • Secure transaction with VPN and 3DES encryption
  • Support multiple POS devices with one Gateway
  • Full Router functionality with Static, RIP, OSPF, and BGP routing
  • No need to upgrade existing ATM or POS device
  • Remote management and statistics
  • Compatible with all standard routers and VPN devices
  • Seamless and non-intrusive installation
  • Access to Wireless networks
  • Full protocol conversion
  • Fallback & Dial Backup routing
  • Reduce Bandwidth over Backbone
 

Features and Functionality of the Gateway Products

Security Features
The JBM Gateways have a full range of Linux security features including SSL client/server, IPSEC VPN client/server, Manual or Dynamic Keys, 3DES encryption, Network Address Translation (NAT), transparent bridging mode, IP and Port filtering, and intrusion protection with an integrated Stateful Inspection Firewall.

Security - ATMs and POS devices are open for attack by hackers and JBM realizes this, so we have added additional security by incorporating VPN capabilities with Firewall functionality into our products. We provide a Linux based hardware solution, which is a secure way of preventing hackers from retrieving critical transaction data. Our Gateway products support Network Address Translation (NAT), filtering, and 3DES encryption. Our Gateway products are easy to install; and in most cases, no reconfiguration of the ATM or POS device is required.

    Key Security Features:

  • Stateful Inspection Firewall
  • DHCP Client/Server
  • In-line Intrusion Protection
  • PAT for IPSec
  • VPN Client/Server
  • NAT
  • 3DES Encryption
  • PPP/PPPoE
  • Dynamic Keys
  • Transparent Bridging Capability

Router Functionality
The Gateway Series offers full IP routing functionality supporting Static, RIP, OSPF, and BGP routing. The Gateway also supports DHCP, DHCP client, PPP, and PPPoE for broadband users.

Compatibility
Compatibility is never an issue with the Gateway since JBM uses all standards based protocols. Interoperability between JBM and other router/VPN vendors is fully supported.

Fallback Routing
One of the Gateway's key features is the ability to perform fallback routing. Fallback routing enables a user to configure alternate paths to the host or to several hosts for disaster recovery. The fallback path can be to a different IP server or with a properly equipped Gateway, through a different connection such as a cell or dial modem.

Dial Backup
The V.92 modem card can be used for dial backup in case the primary link goes down. This feature provides reliability for a customer's most important data. Also, the V.92 Modem can be used as a primary dial out circuit.

Management
The JBM Gateways can be configured through CLI Command entered via console port or Telnet. The Telnet connection provides command, control, and monitoring of the Gateways. SNMP is supported with SNMP Traps providing notification of major events in the Gateways. SSH is also supported for security of the management connection. Extensions to the Telnet or SNMP commands are available as a special order.

Wireless Support
Supports customer-supplied 32-Bit CardBus and 16-bit PCMCIA cards for wireless communications such as CDMA, GSM, GPRS, or WiFi. The slot provides flexibility by connecting the appropriate carrier's cell modem for the terminal's location. This allows more locations to be supported and can reduce costs by quickly changing to the cheapest carrier with only a card swap.

CO Modem Support
All of the modems support both async Legacy protocols and async PPP. The CO-Modem provides a dial tone for dial-only async devices. This dial tone simulator and associated modem allows for a simple, non-disruptive connection of these devices. The Gateway can route the connection based upon the data or phone number (DTMF recognition). The V.92 modem component of the CO-Modem can also be used as a normal async modem.

Frame Relay
The Gateway expansion cards provide the option for a 56K DSU or T1/E1 DSU with full Frame Relay or X.25 support. The software supports up to 100 Logical Channels (DLCIs) with flow control using individual Committed Information Rate (CIR) for each DLCI. Our Frame Relay support is certified to ISO and ITU standards by major network laboratories and is compliant with ANSI T1.617 Annex D, Q.933 or LMI Link Management. The ROLAND Laboratory certifies the X.25 to European NET2 standards.

Protocol Conversion
All of the JBM Gateway products support protocol conversion, and when it comes to protocol conversion, JBM is the industry leader with over 50 different protocols in our software library. Protocol conversion is necessary when converting a host to IP or introducing a new Transaction Switching System. Our Gateway products provide our customers with an efficient and non-disruptive migration to IP. The Gateways support conversion of most financial protocols. In addition, the Gateways support Data and Header manipulation allowing seamless access into many host systems. Below is a list of the most Common Protocols Converted to TCP/IP:

  • Bisync 3270
  • Uniscope
  • SNA/SDLC
  • Bisync 2780/3780
  • Poll Select TC500
  • Visa I & II

For more information on this application or JBM Products, please contact us.

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