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Setup Guide: C/X Remote with Multitech Modems Setup Guide: C/X Remote with Multitech Modems Setup Guide: C/X Remote with Multitech Modems
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
Multitech MT2834BA or MT2834BL 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 (clock speed of 19200) with associated
C/CON
- A pair of MT2834BA or MT2834BL modems
- A pair of Digi RS232 Synchronous Modem cables
- A pair of working dialup lines
- A terminal with DB25 cable to send commands to the modem
- Make sure all DIP switches on both modems are at their asynchronous
default. Connect a terminal to the modems and send command
AT&W1Z
to each of them. This ensures the modems are at default.
- Connect one of the modems to the Host Adapter with a Synchronous
Modem cable, and plug a working phone line into the jack marked LINE on
the back of the modem. This modem will now be known as the Host
Modem.
- Connect a terminal to the other modem, and program the Host Modem's
phone number into it by sending the command
ATDTN1
You should get an "OK" response back. Program this modem for
Voice/Data dialing by sending the command
AT$VD1&W
You should once again receive an "OK" response. This modem will
now be known as the Dialing Modem.
- Plug the other working phone line into the Dialing Modem, then
disconnect the terminal and connect the Dialing Modem to the C/CON
unit with the Synchronous Modem cable.
- Set the Host Modem with DIP switches 1,6, and 11 DOWN {the rest
UP}
Set the Dialing Modem with DIP switches 1 and 11 DOWN {the rest
UP}
Switch 1 DOWN is Forced DTR, Switch 11 DOWN is Internal Clocking, Switch 6
is Master/Slave Clock.
- To establish the link between the Dialing and Host Modems, toggle the
Answ/Orig switch on the front of the Dialing Modem into the Orig
position.
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.
- 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.
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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