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Omni IIe is capable of communicating with an IBM compatible personal computer (PC).  The PC can be local (in-house) or 
remote.  The PC must be equipped with a modem or serial port and running PC Access software.  The Omni IIe has a built-in 
modem and can be accessed over the telephone or over a direct serial connection (RS-232/RS-485 through either the built-in or 
optional serial interface module).  If you wish to use your PC to configure, program, and check the status of your Omni IIe, 
contact your dealer for the appropriate software for your PC. 
 

 
The built-in Ethernet port (J6) allows a device to connect to the Omni IIe controller via a network (i.e. Ethernet, Internet) using a 
secure, encrypted communication link.  The Ethernet port transports HAI application-level packets containing Omni-Link serial 
protocol messages over IP.  The controller supports 3 unique client “sessions” which means 3 devices may actively be connected 
and communicating with the controller simultaneously over the Ethernet port. 

 
Controller IP Address, Port Number, and Encryption Key 

 
The controller’s local IP address and port number set the local network parameters for the Omni IIe controller.  The encryption 
key is used to establish a private, secure connection with the connected device. 
 
These Setup items can only be assigned and changed from an HAI console.  These items can not be assigned or changed via PC 
Access; although the IP address and port number may be viewed via PC Access - See Set Up Miscellaneous. 

 
Omni IIe Ethernet Connections 

 
Use a standard network cable to connect the controller to a hub, switch, or router.  Use a network crossover cable when 
connecting the controller directly to the NIC card on a computer. 
 
When connected to a switch or router, port forwarding must be configured.  Port forwarding sets up public services on your 
network. The Omni IIe controller listens for all IP/UDP communications addressed to it on the specified UDP port number.  The 
router will forward all communications on the specified port to the Omni IIe controller.   

 
Connecting to Network via PC Access 

 
To access the controller over the network via PC Access: 
 

1.  Open an Omni IIe account file. 
 
2.  Click Configure >> Network.   

 

¾  If you are connecting from the local network, enter the controller’s IP address under “Network IP Address or 

Domain Name”.   

 
¾  If you are connecting from the Internet, enter either the public IP address (the way to reach your local network via 

the Internet) or domain name (e.g. www.homeauto.com). 

 

3.  Enter the port number that is configured for the controller. 

 

4.  Select the Encryption tab.  Enter the two part encryption key as it is displayed on the console. 

 

5.  Select OK. 

 

6.  Click Connect >> Network >> Connect.  PC Access should change from “Off-Line” to “On-Line”. 

 
The “Modem” item on the main menu has been replaced with the “Connect” item.  The submenu under “Connect” then allows 
selection of “Modem”, “Serial” or “Network”.  When an account file is opened, the connection type will default to “Serial”.