Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations gkittelson on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

DataFire RAS 24 PT1 - Difficulty in making connection

Status
Not open for further replies.

BobWaterhouse

Programmer
Dec 11, 2002
27
US
This is a limited but major problem we are having using this Digi Board to communicate with our vendors. We seem to be able to connect fine with most of our vendors, but a limited few are having major issues. Normally, we get "No Carrier", "Busy" or the connection simply gets dropped. (If we manullly dial or use the modems on our local PC's we don't seem to have ther same issues.) It is not a problem with any port in particular and we are only using the 1st 10 with ProComm. Any advice or gotcha's would be appreciated. It may be as simple as an AT command we aren't aware of.

Thank You..
 
Are the modems on your local machines the same (both model and firmware) as those on the DigiBoard? If not, I would try moving one of the modems from the DigiBoard to a standalone machine, then see if you can make a successful connection. This would help determine if the problem is with the DigiBoard or the modems on the DigiBoard. When you say you are manually dialing the modems on the DigiBoard, do you mean you are dialing from Data | Manual Connect instead of the Connection Directory, and that then works fine?
aspect@aspectscripting.com
 
When referring to dialing from our local machine what I mean is I can physically dial the number and hear that their side is trying to connect, or, if I use that same scripts on our local machine it has the same stability. Unfortunately, we have only 1 Digiboard which is production and we are continuously connecting to vendors through out the day. The modems themselves I would think are not the same. Locally we are using a 3Com 56K V.90 Mini PCI Modem on a Windows 2000 box. (The DigiBoard is also connected to a Win2K box to the best of my knowledge.)
 
So it sounds like you do not have a problem connecting from your local machine with a local modem (non-Digiboard connection), is that right? It's just a problem when connecting to certain vendors through the DigiBoard?

I've never used HyperTerminal with a DigiBoard, but I don't know why it wouldn't work. Are you able to make successful connections to those problem vendors if you use HyperTerminal? That could help us narrow down where the problem is.

aspect@aspectscripting.com
 
Good point. I'm not sure if I have access to the DigiBoard via the Hyperterminal. I'll check it out. Thanks.
 
Hi. I tried connecting to our vendors using Hyperterminal as you proposed. I was not able to get through and was having the same difficulty as with the scripts I developed. Is it possible, that the telephone number is being routed differently (but consistently different) than when I dial from my local phone/PC?
 
Did you also try connecting to one of the vendors that you can communicate with successfully? If you are able to do so, then it sounds to me like the problem may be the negotiation taking place between the modems on the DigiBoard and the modems those particular vendors use. This may require updated modem drivers and/or firmware on your end, or you may need to lower the connection speed or disable error correction or data compression if the modems you are calling are older models. You can consult your modem manual for the proper AT commands to perform these functions. The easiest way to test this is to turn on modem command mode (Data | Modem Command Mode menu item), enter the AT commands, then dialing using ATDT and the phone number. If that seems to work, you can then configure the various Connection Directory entries to use those extra commands when dialing the problem vendors.
aspect@aspectscripting.com
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top