The C/X and EPC/X concentrator systems can be setup for remote operation with a variety of synchronous links. The setup below is for a pair of USR Courier modems using Voice/Data Dialing over standard dialup phone lines. Note: Prior to installing the C/CON or EPC/CON at a remote site, all of the components must be set up and tested at the Host Adapter location.

This installation was tested with:
• An installed C/X Host Adapter (line at 8W/RS232, clock speed of 19200) and C/CON Unit
• A pair of USR Courier modems (V.34 or V.Everything)
• A pair of Digi RS232 Synchronous Modem cables
• A pair of working dialup lines
• A dumb terminal with DB25 cable to send commands to the modem

1. Connect one of the modems to a terminal. Set the DIP switches 3, 8, and 10 down (on), all others up (off). Power the modem off, then on again. Send the following AT command to the modem:

   AT&F&R&S&X&N14&M1&W

   .
2. Take the modem from step 1, and turn the power off. Change the DIP switch settings so that 1 and 4 are down (on), the rest up (off). Unplug the terminal from the modem, and connect it instead to the Host Adapter with the RS232 Synchronous cable. Plug a working phone line into the jack marked Jack on the back of the modem. Label this modem as Host Modem.

3. Set DIP switches on the other modem to 3, 5, 8, and 10 down (on), all others up (off). Power the modem off, then on again. Connect the terminal to this modem and send the following command:

   AT&ZC=&F&R&S&X2&N14&M1DT

   The phone number will be that of the phone line connected to the Host Modem in step 2. Now send command:

   ATS32=9&W

4. Take the modem from step 3, and turn it off. Change the DIP switch setting to 1, 4, and 5 down (on), all others up (off). Unplug the terminal from the modem, and connect it instead to the C/CON unit. Plug a working phone line into the jack marked Jack on the back of the modem. Label this modem as Dialing Modem.

5. The modems are set for slave-clocked synchronous operation with forced DTR. Forced DTR is necessary for modem operation since this signal is not provided for on the cable. Internal/slave clocking is necessary to provide a steady clock signal on the remote link.

6. To establish the link between the Dialing and Host Modems, push the Answ/Orig switch on the front of the Dialing Modem to make it dial. The Dialing Modem should go off hook, dial the phone number programmed into memory, and establish a synchronous connection with the Host Modem. At this point, turn the C/CON unit on and it should go from P1--P2--P4--AC. The link is now operational.

7. Now, all that remains will be to move the Dialing Modem and C/CON unit to the desired remote location, plug everything in, and redo step 6. When you get AC on the C/CON, your work is complete.

8. For further help in diagnosing problems with C/X Remote, consult the C/X Remote Troubleshooting Guide.
   All information presented on these support pages is current as of the date posted. While we try our best to keep all information up-to-date, we can not guarantee its accuracy. For the latest information, please contact your Digi representative.

   This procedure involves the use of third party equipment. It demonstrates a setup that has been tested and found to work. It is meant as a guide only and is not a guarantee that particular 3rd party equipment is suitable for use in a particular application or environment, or is 100% compatible with our products.

    
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