Lava PAYLINK-IP/232 Manuel utilisateur
Rev. A07
PayLink-IP/232
Configuration Guide
© 2005 Lava Computer MFG Inc.
www.lavalink.com
Rev. A07 PayLink-IP/232 Configuration Guide Page 1 of 26
PayLink-IP/232 Configuration Guide
This document describes the configuration features of the PayLink-IP/232. It covers:
1. Hardware connection
2. On-line connection
3. Network settings
4. Advanced network settings
5. Terminal side configuration
6. Host side configuration
7. Protocol configuration
8. Password configuration
9. Glossary
10. Appendix A: Message negotiation
11. Appendix B: Hardware status LEDs
1. Hardware connection
Hardware setup
1. Connect the power supply to the PayLink-IP/232 and to AC power. The power (red) LED will light to indicate
that the unit is 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 of this manual.
4. After configuring the PayLink-IP/232, attach it to your network and connect a payment terminal to its serial
port.
Serial port activity is indicated by two status LEDs as described in “Appendix B: Hardware status LEDs” on page 26.
Cabling
The PayLink-IP/232 looks exactly like the COM port of a PC from the point of view of the payment terminal, and should
be hooked up in precisely the same fashion.
Rev. A07 PayLink-IP/232 Configuration Guide Page 2 of 26
2. On-line connection
Configuration of the PayLink-IP/232 begins by entering the IP address of the PayLink-IP/232 (factory default is
192.168.0.35) into a web browser’s location bar (Microsoft Internet Explorer recommended).
An embedded web server in the PayLink-IP/232 will present the entry screen to the PayLink-IP/232 configuration
options, and show the current settings for the device being addressed:
Figure 1: Opening Screen
Log into the PayLink-IP/232 by entering the password into the “Enter password:” text entry box and click on the “Con-
figure” button (hitting the 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 attempts. At this point the PayLink-IP/232 will continue to operate as currently
configured, but will not be available for configuration changes. The password dialog box will also disappear from the
opening screen.
To unlock the PayLink-IP/232, it must be given the “unlock password” as described in “Password configuration” on
page 13.
Once the password has been accepted, the PayLink-IP/232 will present the following Configuration Menu:
Rev. A07 PayLink-IP/232 Configuration Guide Page 3 of 26
Figure 2: Configuration Menu
From the Configuration Menu you can open 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.
Rev. A07 PayLink-IP/232 Configuration Guide Page 4 of 26
3. Network settings
The Network Settings screen allows configuration of the network parameters for the PayLink-IP/232:
Figure 3: Network Settings
The following network settings can be configured:
Device name
Use this field to supply a “friendly” name for the PayLink-IP/232 device being configured. The friendly name is optional,
and can be chosen to provide a conveniently-remembered name for the unit.
IP address
The IP address for the PayLink-IP/232 will identify the device on the LAN on which it is located. Any conventional IP
address can be used. The PayLink-IP/232 ships with its default IP address as 192.168.0.35; ensure that this IP address is
accessible on the LAN onto which the PayLink-IP/232 is being installed.
NOTE: When DHCP is enabled, any IP address value entered 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 management applicationrun-
ning on the the client station, and its ports can be activated on that client station, but applications running on the
client station will not be able to open a serial port on the PayLink-IP/232.
For example, if the IP address of the PayLink-IP/232 is 192.168.0.35 and the IP address of the client station is
192.168.1.1, the two devices are on different subnets (as indicated by the difference between the "0" and the "1" in the
third portion of the two IP addresses).
Two solutions exist:
• change the subnet of the either the PayLink-IP/232 or the client station so that they are both on the same subnet
or,
Rev. A07 PayLink-IP/232 Configuration Guide Page 5 of 26
• change the subnet mask of the PayLink-IP/232 to encompass both subnets. By default, the PayLink-IP/232 has its
subnet mask set to 255.255.255.0. This setting excludes all but the fourth portion of the IP address when assessing
IP addresses. In the example above, a subnet mask of 255.255.0.0 will include the PayLink-IP/232 in both subnets.
Default gateway
Configure the local IP address of the default gateway that the PayLink-IP/232 will use to communicate with devices
outside its network segment.
DNS server IP
If an external DNS server is being used to convert DNS names to IP addresses, the IP address of the DNS server is
entered here. By default this field is blank.
DHCP enabled
If installing the PayLink-IP/232 onto a network where IP addresses are to be assigned by a DHCP server, the “DHCP
enabled” checkbox must be set. The PayLink-IP/232 will act 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.
Implementing changes:
After making changes to the network settings, five options exist:
Submit changes and reboot device
This option will register the changes you have entered into the dialog box and reboot the PayLink-IP/232, imple-
menting the changes on reboot.
Restore factory defaults and reboot device
This option will restore factory defaults and reboot the PayLink-IP/232, implementing the changes on reboot.
Exit without changes
This option will discard changes entered into the dialog box and return you to the “Configuration Menu” screen.
Reboot device
This option will reboot the device with the settings currently implemented, and discard any changes.
Advanced
This option opens the “Advanced Network Settings” dialog.
Rev. A07 PayLink-IP/232 Configuration Guide Page 6 of 26
4. Advanced network settings
Available from the Network Settings page, the Advanced Network Settings page allows configuration of network port
settings for the PayLink-IP/232.
Figure 4: Advanced Network Settings
The following advanced network settings can be configured:
HTTP port
By default, the PayLink-IP/232 communicates on port number 80. A measure of increased security may be obtained by
changing this port number to a user-selected TCP port 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, two options exist:
Submit
This selection will register the changes you have entered into the dialog box and reboot the PayLink-IP/232,
implementing the changes on reboot.
Exit without changes
This selection will discard changes entered into the dialog box and return to the “Network Settings” screen.
Rev. A07 PayLink-IP/232 Configuration Guide Page 7 of 26
5. Terminal side configuration
If you choose “Terminal Side Configuration” from the main Configuration Menu, a configuration screen will appear. Its
form will depend on whether the terminal has been configured for asynchronous communications or SDLC commun-
ciations in the 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.
Parity
This parameter can be set even, odd, none, mark, or space.
Flow control
This parameter can be set XON/XOFF, hardware, or none.
Rev. A07 PayLink-IP/232 Configuration Guide Page 8 of 26
Terminal settings
The PayLink-IP/232 can be configured to manage connecting to and from a terminal using a number of options, as
outlined in the following pages.
Terminal Data Format
• 7 bits even parity (default)
• 7 bits odd parity
• 7 bits no parity
•8bits
NOTE: “Terminal Data Format” refers to the organization of the actual data transmitted by the terminal. The parity
settings indicated here are not the same as the modem parity settings.
Message Negotiation
Message negotiation settings are:
• Send ENQ to terminal to initiate transmission
This setting should be enabled when the payment terminal expects to receive an ENQ prior to sending out trans-
action data. Possible settings are:
Default operation — “Send ENQ”, “Use SYN/SYN/SYN”, “Send ACK” all disabled (see page 15)
Opening a connection — “Send ENQ” enabled (see page 16)
Opening a connection — “Send ENQ” disabled (see page 17)
• Use SYN/SYN/SYN preamble to establish connection
This setting should be enabled when the payment 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 specifies the maximum time that the PayLink-IP/232 will accumulate data before forwarding
it to its destination. Inter-character delay is a variable that can be set in the range 5-60 ms. By default the inter-
character delay is set to 20 ms.
Transaction ended by:
The PayLink-IP/232 can be configured to end a transaction with a payment terminal under a number of condi-
tions. Possible settings are:
Closing connections — “Server (default)” mode (see page 20)
Closing connections — “ACK from terminal, EOT to terminal” mode (see page 21)
Closing connections — “ACK from terminal, ACK to terminal” mode (see page 22)
Closing connections — “EOT from terminal, EOT to terminal” mode (see page 23)
Closing connections — “EOT to terminal when TCP/IP closed” mode (see page 24)
Closing connections — “ACK to terminal when TCP/IP closed” mode (see page 25)
Rev. A07 PayLink-IP/232 Configuration Guide Page 9 of 26
6. Host side configuration
If you choose the “Host Side Configuration” option from the main Configuration Menu, a screen of the following form
will appear:
Figure 6: Host side configuration
This screen presents the host configuration settings for contacting payment processors. Settings can be indepen-
dently configured for a primary host (such as a credit host), a secondary host (such as a debit host), and two additional
user-defined hosts (such as charge, gift, or loyalty hosts). For any host that is being 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 number is mapped to a single activation string, the first IP address/port num-
ber will be used.
In addition to the parameters above, a “fallback” IP address and IP port can be supplied for each of the payment hosts
configured. In the event that the PayLink-IP/232 cannot connect to the primary address for the host, the fallback
address will be attempted.
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