Columbia Kermit/kermit.zip/newsgroups/misc.19990422-19990725/[e-mail] _Sat May 22 15:52:15 1999.msg

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From: [e-mail] (Graham Smith)
Subject: Re: Carrier Detect problems
Date: Sat, 22 May 1999 19:41:56 GMT
Organization: Zip World
Message-ID: <[e-mail]>
To: [e-mail]

On 22 May 1999 19:04:29 GMT, [e-mail] (Frank da
Cruz) wrote:

>In article <[e-mail]>,
>Graham Smith <[e-mail]> wrote:
>: I have just set up CKermit 7 Beta 6 on SuSE 6.1 Linux and am having
>: problems with the Carrier detection.
>:
>: I am using a V34 modem...
>:
>Make and model?
Maestro Executive E336V - Using the Rockwell Chipset.
All the other modems called are Maestro Modems either V34 or old 2400
Baud ones.
>
>: ... to dial a number of sites.
>:
>How are you dialing?  With Kermit's DIAL command?  Did you give a SET MODEM
>TYPE command prior to the SET LINE command?
>

Unfortunatly I'm not at the site and don't have a copy of the script
with me. Will check later today after I get some sleep.
Yes using the DIAL commad

>: If I dial another
>: V34 modem I do not have any problems but if I call a 2400 baud modem
>: the  modem sends "CARRIER 2400" after the handshake tahes place.
>: At this stage the CD lead is still low. Kermit appears to now check
>: the CD lead and still being low issues a statemet saying  that I have
>: lost carrier.
>:
>: About 2 to 5 seconds latter the modem sets the CD lead high.
>:
>Of course the modem should set CD high at the same time it prints the
>CONNECT message.

I think the CONNECT message comes after the CD is raised or nearly at
the same time which is well after the CARRIER 2400 message arrives.

>
>If you are using C-Kermit's DIAL command, opens the device in the "don't
>require carrier" mode so it can send AT commands to the modem.  After it
>gets the modem's CONNECT message (word or numeric result code) it changes
>the device to "require carrier" mode.  If your modem really delays 2-5
>seconds before turning on CD, then your script can PAUSE 5 seconds (more
>or less) before trying to do any i/o on the connection.
>
>Or you can use SET MODEM TYPE UNKNOWN, which ignores all messages from
>the modem and just waits for CD to come on.  See the manual for details.
>
>: If I run this as a script the modem is disconnected before the CD lead
>: has been set high. It does not matter if I set  CARRIER-WATCH OFF, the
>: modem still disconnects.
>:
>: The script was working perfectly under Solaris X86 using CKermit
>: 6.0.192 using the same modems.
>:
>: Any ideas as to what is going on?
>:
>If the above suggestions didn't help, please send a copy of your script to
>[e-mail] and we'll take a look at it.
>
>- Frank

Thank you for your quick responce. I will give your suggestions a try
latter today.

Thanks,

Graham Smith