Rev. A00 HQ-ST System Manual Page 9 of 32
8. The modem settings on the right hand side of this tab may not need to be changed, depending on the particular
modem requirements of the polling software. LAVA suggests starting with them at their default values.
9. Connect the HQ Plus “Modem” port to the PC’s second COM port using the DB-9F to DB-25M serial cable.
10. Connect the HQ Plus’s Ethernet port to the store LAN on which the “Default Gateway” is located.
11. Map a TCP port nnnn (default port number is 4098) on the headquarter’s gateway to allow control and
negotiation data to pass to remote units. Consult your router's documentation for this step.
12. Map a TCP port nnnn+1 (default port number is 4099) on the headquarter’s gateway to allow modem data to pass
to remote units. Consult your router's documentation for this step.
13. Test the link.
See “Test that the HQ Site is Properly Set Up and Working: HQ Plus Installed” on page26.
See “Test the End-to-End HQ-ST Link Communications: HQ and ST Installed” on page27.
14. Attach the PC that will host the polling software. The serial port of the polling host PC should be connected to the
“Modem” port of the HQ Plus. In general, it is most trouble-free to configure the serial port of the polling host PC
to match the serial port of the HQ Plus, and to ensure that serial settings and connections end-to-end (from
polling software to polled device) are consistent.
15. If necessary, troubleshoot the link using the troubleshooting chart:
See “Troubleshooting” on page28.
16. POLL AWAY!
METHOD#2: Headquarters Installation using Ether Link Manager and the Web Page
Before Proceeding: Complete the relevant network parameters checklists on the LAN
• See “Verify Access to the Internet from the LAN” on page 23.
• See “Check that the LAN Provides DHCP Setting Configurations to Devices on the LAN” on page 24.
• See “Check that the Selected HQ Site has a STATIC WAN IP Address” on page25.