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Lava PAYLINK-IP/232 Configuration Manual Download Page 26

Rev. A07

PayLink-IP/232 Configuration Guide

Page 25 of 26

Transaction ended by ACK to terminal when TCP/IP closed:

In “ACK to terminal when TCP/IP closed” mode, the PayLink-IP/232 sends an ACK character to the terminal if the 
TCP/IP connection is closed by the server.

Figure 25: Closing connections — “ACK to terminal when TCP/IP closed” mode

Summary of Contents for PAYLINK-IP/232

Page 1: ...Rev A07 PayLink IP 232 Configuration Guide 2005 Lava Computer MFG Inc www lavalink com ...

Page 2: ... receiving power 2 Connect an Ethernet cross over cable to the Ethernet RJ 45 jack of the PayLink IP 232 Attach the other end of the crossover network cable to a host PC directly Network status is indicated by two LEDs as described in Appendix B Hardware status LEDs on page 26 3 Open a web browser to the IP address of the PayLink IP 232 and configure the device as described in the fol lowing pages...

Page 3: ...Enter key on your keyboard will not work By default the PayLink IP 232 ships with no pass word To configure the PayLink IP 232 when no password is set do not enter any characters into the password box simply click on the Configure button NOTE As a security feature after a user has made three consecutive failed attempts at entering a password the Pay Link IP 232 will refuse further password attempt...

Page 4: ...pen screens to view and modify network settings payment terminal interface settings host side interface settings and passwords for the PayLink IP 232 The radio buttons displayed on this screen indicate the current configuration of the PayLink IP 232 changing these settings is done by clicking therelevant Con figure button ...

Page 5: ...tered here will be overridden Subnet mask A subnet mask can be configured for the PayLink IP 232 in this dialog box by default the PayLink IP 232 is set with a subnet mask of 255 255 255 0 Note on subnet configuration with the PayLink IP 232 If the PayLink IP 232 is on a different subnet from a client sta tion that is attempting to access it the PayLink IP 232 will be visible in an instance of the...

Page 6: ...as a DHCP client and obtain its IP address from the DHCP server s on its LAN NOTE When DHCP is enabled any IP address value manually configured for the PayLink IP 232 will be overridden NOTE If no DNS server is running when DHCP is enabled connection to the PayLink IP 232 will be lost MAC address The MAC address of the PayLink IP 232 is shown for reference This address cannot be changed Implementi...

Page 7: ...ort for HTTP communications Assigned local TCP port Use this dialog box to change the TCP port number assigned to the PayLink IP 232 By default the PayLink IP 232 assigns TCP port 2300 to the PayLink IP 232 if another device on the network is already using this TCP port number reassign the PayLink IP 232 to another TCP port Implementing changes After making changes to the advanced network settings...

Page 8: ...main Configuration Menu Figure 5 Terminal side configuration This page presents configuration dialogs for the PayLink IP 232 s serial port and for data formats for communication with your payment terminal Port Settings Bits per second This parameter can be set from 110 to 115200 bps Default is 9600 baud Data bits This parameter can be set from 5 to 8 Stop bits This parameter can be set 1 1 5 or 2 ...

Page 9: ...ayment terminal looks for a synchronization string before the initial ENQ string Send ACK to terminal after each received message This setting should be enabled when the payment terminal expects to receive an ACK after each message received by the server Possible settings are Data flow Send ACK enabled see page 18 Data flow Send ACK disabled see page 19 Set InterChar delay Inter character delay sp...

Page 10: ...ng used three parameters need to be supplied Activation string IP address or fully qualified DNS name IP port default 443 These three parameters identify an activation string with an IP address IP port The activation string can be any charac ter based string but Lava recommends using activation strings patterned after the traditional Hayes AT modem command set NOTE If more than one IP address port...

Page 11: ...ows configuration PayLink IP 232 to match the data format of the server to which data is sent Settings are 7 bits even parity default 7 bits odd parity 7 bits none parity 8 bits Message formats A selection of message formats are available for communicating with the remote server The choice of format will depend on the requirements at the remote server This information will be provided by the payme...

Page 12: ...ng Standard mode Visa 1 2 frames packets with STX ETX and LRC framing elements as shown below Figure 10 VISA 1 2 standard framing Visa 1 2 transparent framing Transparent mode Visa 1 2 frames packets with DLE STX DLE ETX CRC1 and CRC2 framing elements as shown below Figure 11 VISA 1 2 transparent framing Length prefix framing Includes a 2 byte header that indicates the total length of the data fra...

Page 13: ...Data framing Send message as This dialog specifies encryption options for server connection used by the PayLink IP 232 By default SSL is enabled Options are SSL 3 0 encrypted data default Data Only SSL off no encryption NOTE SSL must be enabled for secure payment processing ...

Page 14: ...o not enter any characters into the password box simply click on the Configure button NOTE As a security feature after a user has made three consecutive failed attempts at entering an administrator s password the PayLink IP 232 will refuse further password attempts The password dialog box will also disappear from the opening screen To unlock the PayLink IP 232 it must be given the unlock password ...

Page 15: ... communication EOT End Of Transmission character HEX 04 A flow control character used to indicate a cessation of communication between a sender and a receiver ETX End of TeXt character HEX 03 A flow control character used to delimit the end of a data block or frame LRC Longitudinal Redundancy Check An error checking method that computes a parity value based on a block of data LSB Least Significant...

Page 16: ...c Send ENQ to terminal to initiate transmission Use SYN SYN SYN preamble to establish connection and Send ACK to terminal after each received message are dis abled This means that by default the PayLink IP 232 operates transparently passing all negotiation messages directly between the terminal and the payment server Figure 15 Default operation Send ENQ Use SYN SYN SYN Send ACK all disabled ...

Page 17: ... terminal expects an ENQ string to precede the transmission of data and the payment processing server does not send that string or where delays in transmission time possibly resulting from SSL negotiation would lead to the payment pro cessing server s ENQ string being received late by the terminal causing the terminal to time out Figure 16 Opening a connection Send ENQ enabled ...

Page 18: ...Rev A07 PayLink IP 232 Configuration Guide Page 17 of 26 Figure 17 Opening a connection Send ENQ disabled ...

Page 19: ...ituations where the payment terminal expects an ACK string to follow the transmission of data and the payment pro cessing server does not send that string or where delays in transmission time would lead to the payment processing server s ACK string being received late by the terminal causing the terminal to time out Figure 18 Data flow Send ACK enabled ...

Page 20: ...Rev A07 PayLink IP 232 Configuration Guide Page 19 of 26 Figure 19 Data flow Send ACK disabled ...

Page 21: ...and the server and ends a transaction by passing closing commands between the server and the terminal on the assumption that those two devices are able to understand each other s command structures The PayLink IP 232 keeps a connec tion open until one side closes the connection or until a 30 second no activity timeout has elapsed Figure 20 Closing connections Server default mode ...

Page 22: ... terminal mode the PayLink IP 232 receives an ACK character from the terminal and responds to the terminal with an EOT character This shutdown mode is typically used when the terminal requires an EOT to close the connection but the server is not programmed to send an EOT Figure 21 Closing connections ACK from terminal EOT to terminal mode ...

Page 23: ...l ACK to terminal mode the PayLink IP 232 receives an ACK character from the terminal and responds to the terminal with an ACK character This setting is used for terminals that end connections after receiving an ACK rather than an EOT usually supplied by a server Figure 22 Closing connections ACK from terminal ACK to terminal mode ...

Page 24: ...o terminal mode the PayLink IP 232 receives an EOT character from the terminal and responds to the terminal with an EOT character This shutdown mode is typically used when you want the termi nal to close the connection as when the terminal is performing a batch operation Figure 23 Closing connections EOT from terminal EOT to terminal mode ...

Page 25: ...ion ended by EOT to terminal when TCP IP closed In EOT to terminal when TCP IP closed mode the PayLink IP 232 sends an EOT character to the terminal if the TCP IP connection is closed by the server Figure 24 Closing connections EOT to terminal when TCP IP closed mode ...

Page 26: ...ion ended by ACK to terminal when TCP IP closed In ACK to terminal when TCP IP closed mode the PayLink IP 232 sends an ACK character to the terminal if the TCP IP connection is closed by the server Figure 25 Closing connections ACK to terminal when TCP IP closed mode ...

Page 27: ...AN OFF PayLink IP 232 is not connected to the LAN or the PayLink IP 232 is in the process of being reset Amber Data communications activity status ON OFF ON Flickering Packets are being seen by the PayLink IP 232 STEADY No data activity is being seen by the PayLink IP 232 Serial DB 9 Green Transmit status ON Data is being transmitted on the serial port OFF Data is not being transmitted on the seri...

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